/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/hardness-nfm22/hardness_variablewrapping_normal_file-5.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 12:06:46,010 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 12:06:46,157 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 12:06:46,161 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 12:06:46,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 12:06:46,208 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 12:06:46,209 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 12:06:46,210 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 12:06:46,210 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 12:06:46,214 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 12:06:46,214 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 12:06:46,214 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 12:06:46,215 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 12:06:46,216 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 12:06:46,216 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 12:06:46,217 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 12:06:46,217 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 12:06:46,217 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 12:06:46,217 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 12:06:46,218 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 12:06:46,218 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 12:06:46,218 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 12:06:46,219 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 12:06:46,219 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 12:06:46,219 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 12:06:46,219 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 12:06:46,220 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 12:06:46,220 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 12:06:46,220 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 12:06:46,220 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 12:06:46,221 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 12:06:46,221 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 12:06:46,222 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 12:06:46,222 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 12:06:46,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 12:06:46,222 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 12:06:46,222 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 12:06:46,223 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 12:06:46,223 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 12:06:46,223 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 12:06:46,223 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 12:06:46,224 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 12:06:46,225 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 12:06:46,240 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 12:06:46,241 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 12:06:46,241 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 12:06:46,241 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 12:06:46,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 12:06:46,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 12:06:46,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 12:06:46,678 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 12:06:46,678 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 12:06:46,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_normal_file-5.i [2023-12-24 12:06:48,563 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 12:06:48,934 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 12:06:48,934 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_normal_file-5.i [2023-12-24 12:06:48,944 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bce09b1c/2fa871a95ae949b2890a200f47bca10b/FLAGf5013b60d [2023-12-24 12:06:48,981 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bce09b1c/2fa871a95ae949b2890a200f47bca10b [2023-12-24 12:06:48,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 12:06:48,989 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 12:06:48,990 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 12:06:48,990 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 12:06:49,000 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 12:06:49,009 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 12:06:48" (1/1) ... [2023-12-24 12:06:49,010 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5208a36f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:06:49, skipping insertion in model container [2023-12-24 12:06:49,010 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 12:06:48" (1/1) ... [2023-12-24 12:06:49,046 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 12:06:49,281 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_normal_file-5.i[912,925] [2023-12-24 12:06:49,369 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 12:06:49,396 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 12:06:49,412 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_normal_file-5.i[912,925] [2023-12-24 12:06:49,460 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 12:06:49,484 INFO L206 MainTranslator]: Completed translation [2023-12-24 12:06:49,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:06:49 WrapperNode [2023-12-24 12:06:49,485 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 12:06:49,486 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 12:06:49,486 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 12:06:49,487 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 12:06:49,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:06:49" (1/1) ... [2023-12-24 12:06:49,526 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:06:49" (1/1) ... [2023-12-24 12:06:49,557 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2023-12-24 12:06:49,557 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 12:06:49,558 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 12:06:49,558 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 12:06:49,558 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 12:06:49,593 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:06:49" (1/1) ... [2023-12-24 12:06:49,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:06:49" (1/1) ... [2023-12-24 12:06:49,597 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:06:49" (1/1) ... [2023-12-24 12:06:49,633 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-24 12:06:49,633 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:06:49" (1/1) ... [2023-12-24 12:06:49,634 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:06:49" (1/1) ... [2023-12-24 12:06:49,640 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:06:49" (1/1) ... [2023-12-24 12:06:49,642 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:06:49" (1/1) ... [2023-12-24 12:06:49,643 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:06:49" (1/1) ... [2023-12-24 12:06:49,662 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:06:49" (1/1) ... [2023-12-24 12:06:49,671 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 12:06:49,672 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 12:06:49,672 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 12:06:49,673 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 12:06:49,673 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:06:49" (1/1) ... [2023-12-24 12:06:49,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 12:06:49,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 12:06:49,741 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-24 12:06:49,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-24 12:06:49,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 12:06:49,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 12:06:49,801 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 12:06:49,801 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 12:06:49,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 12:06:49,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 12:06:49,883 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 12:06:49,885 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 12:06:50,525 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 12:06:50,627 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 12:06:50,628 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 12:06:50,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 12:06:50 BoogieIcfgContainer [2023-12-24 12:06:50,658 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 12:06:50,660 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 12:06:50,660 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 12:06:50,663 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 12:06:50,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 12:06:48" (1/3) ... [2023-12-24 12:06:50,664 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28783564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 12:06:50, skipping insertion in model container [2023-12-24 12:06:50,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 12:06:49" (2/3) ... [2023-12-24 12:06:50,664 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28783564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 12:06:50, skipping insertion in model container [2023-12-24 12:06:50,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 12:06:50" (3/3) ... [2023-12-24 12:06:50,665 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-5.i [2023-12-24 12:06:50,695 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 12:06:50,696 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 12:06:50,762 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 12:06:50,788 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;@6d80b48e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 12:06:50,788 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 12:06:50,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 25 states have (on average 1.4) internal successors, (35), 26 states have internal predecessors, (35), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-24 12:06:50,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-24 12:06:50,814 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 12:06:50,815 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 12:06:50,816 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 12:06:50,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 12:06:50,824 INFO L85 PathProgramCache]: Analyzing trace with hash 2049795029, now seen corresponding path program 1 times [2023-12-24 12:06:50,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 12:06:50,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888006177] [2023-12-24 12:06:50,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 12:06:50,862 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 12:06:50,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 12:06:50,868 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 12:06:50,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-24 12:06:51,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 12:06:51,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 12:06:51,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 12:06:51,241 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2023-12-24 12:06:51,241 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 12:06:51,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 12:06:51,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888006177] [2023-12-24 12:06:51,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888006177] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 12:06:51,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 12:06:51,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 12:06:51,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072320162] [2023-12-24 12:06:51,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 12:06:51,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 12:06:51,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 12:06:51,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 12:06:51,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 12:06:51,295 INFO L87 Difference]: Start difference. First operand has 48 states, 25 states have (on average 1.4) internal successors, (35), 26 states have internal predecessors, (35), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-24 12:06:51,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 12:06:51,386 INFO L93 Difference]: Finished difference Result 93 states and 168 transitions. [2023-12-24 12:06:51,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 12:06:51,399 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 118 [2023-12-24 12:06:51,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 12:06:51,406 INFO L225 Difference]: With dead ends: 93 [2023-12-24 12:06:51,406 INFO L226 Difference]: Without dead ends: 46 [2023-12-24 12:06:51,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 12:06:51,419 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 12:06:51,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 12:06:51,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-12-24 12:06:51,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-12-24 12:06:51,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-24 12:06:51,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 70 transitions. [2023-12-24 12:06:51,491 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 70 transitions. Word has length 118 [2023-12-24 12:06:51,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 12:06:51,491 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 70 transitions. [2023-12-24 12:06:51,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-24 12:06:51,492 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 70 transitions. [2023-12-24 12:06:51,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-24 12:06:51,498 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 12:06:51,499 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 12:06:51,510 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 [2023-12-24 12:06:51,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 12:06:51,709 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 12:06:51,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 12:06:51,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1084733081, now seen corresponding path program 1 times [2023-12-24 12:06:51,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 12:06:51,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2050495749] [2023-12-24 12:06:51,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 12:06:51,717 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 12:06:51,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 12:06:51,723 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 12:06:51,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-24 12:06:52,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 12:06:52,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-24 12:06:52,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 12:07:10,038 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-24 12:07:10,038 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 12:07:10,039 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 12:07:10,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2050495749] [2023-12-24 12:07:10,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2050495749] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 12:07:10,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 12:07:10,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-12-24 12:07:10,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563789625] [2023-12-24 12:07:10,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 12:07:10,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-24 12:07:10,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 12:07:10,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-24 12:07:10,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2023-12-24 12:07:10,043 INFO L87 Difference]: Start difference. First operand 46 states and 70 transitions. Second operand has 22 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 19 states have internal predecessors, (36), 5 states have call successors, (20), 5 states have call predecessors, (20), 6 states have return successors, (20), 6 states have call predecessors, (20), 5 states have call successors, (20) [2023-12-24 12:07:12,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 12:07:12,544 INFO L93 Difference]: Finished difference Result 153 states and 202 transitions. [2023-12-24 12:07:12,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-24 12:07:12,550 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 19 states have internal predecessors, (36), 5 states have call successors, (20), 5 states have call predecessors, (20), 6 states have return successors, (20), 6 states have call predecessors, (20), 5 states have call successors, (20) Word has length 118 [2023-12-24 12:07:12,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 12:07:12,553 INFO L225 Difference]: With dead ends: 153 [2023-12-24 12:07:12,553 INFO L226 Difference]: Without dead ends: 151 [2023-12-24 12:07:12,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=399, Invalid=933, Unknown=0, NotChecked=0, Total=1332 [2023-12-24 12:07:12,555 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 165 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-24 12:07:12,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 286 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-24 12:07:12,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-12-24 12:07:12,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 115. [2023-12-24 12:07:12,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 66 states have (on average 1.1666666666666667) internal successors, (77), 66 states have internal predecessors, (77), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-24 12:07:12,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 157 transitions. [2023-12-24 12:07:12,593 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 157 transitions. Word has length 118 [2023-12-24 12:07:12,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 12:07:12,594 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 157 transitions. [2023-12-24 12:07:12,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 19 states have internal predecessors, (36), 5 states have call successors, (20), 5 states have call predecessors, (20), 6 states have return successors, (20), 6 states have call predecessors, (20), 5 states have call successors, (20) [2023-12-24 12:07:12,594 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 157 transitions. [2023-12-24 12:07:12,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-24 12:07:12,601 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 12:07:12,601 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 12:07:12,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-24 12:07:12,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 12:07:12,804 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 12:07:12,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 12:07:12,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1084792663, now seen corresponding path program 1 times [2023-12-24 12:07:12,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 12:07:12,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464304441] [2023-12-24 12:07:12,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 12:07:12,812 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 12:07:12,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 12:07:12,821 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 12:07:12,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-24 12:07:13,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 12:07:13,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-24 12:07:13,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 12:07:13,064 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-24 12:07:13,064 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 12:07:13,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 12:07:13,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1464304441] [2023-12-24 12:07:13,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1464304441] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 12:07:13,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 12:07:13,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-24 12:07:13,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284112914] [2023-12-24 12:07:13,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 12:07:13,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-24 12:07:13,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 12:07:13,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-24 12:07:13,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 12:07:13,067 INFO L87 Difference]: Start difference. First operand 115 states and 157 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-24 12:07:13,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 12:07:13,167 INFO L93 Difference]: Finished difference Result 229 states and 313 transitions. [2023-12-24 12:07:13,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 12:07:13,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 118 [2023-12-24 12:07:13,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 12:07:13,191 INFO L225 Difference]: With dead ends: 229 [2023-12-24 12:07:13,191 INFO L226 Difference]: Without dead ends: 115 [2023-12-24 12:07:13,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-24 12:07:13,193 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 1 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-24 12:07:13,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 128 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-24 12:07:13,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-12-24 12:07:13,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2023-12-24 12:07:13,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 66 states have (on average 1.121212121212121) internal successors, (74), 66 states have internal predecessors, (74), 40 states have call successors, (40), 8 states have call predecessors, (40), 8 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-24 12:07:13,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 154 transitions. [2023-12-24 12:07:13,231 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 154 transitions. Word has length 118 [2023-12-24 12:07:13,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 12:07:13,232 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 154 transitions. [2023-12-24 12:07:13,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-24 12:07:13,232 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 154 transitions. [2023-12-24 12:07:13,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-24 12:07:13,234 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 12:07:13,234 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 12:07:13,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-24 12:07:13,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 12:07:13,444 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 12:07:13,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 12:07:13,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1141991383, now seen corresponding path program 1 times [2023-12-24 12:07:13,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 12:07:13,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216912118] [2023-12-24 12:07:13,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 12:07:13,445 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 12:07:13,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 12:07:13,457 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 12:07:13,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-24 12:07:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 12:07:13,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-24 12:07:13,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 12:07:35,637 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-24 12:07:35,637 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 12:07:35,637 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 12:07:35,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216912118] [2023-12-24 12:07:35,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1216912118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 12:07:35,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 12:07:35,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-24 12:07:35,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791424929] [2023-12-24 12:07:35,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 12:07:35,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 12:07:35,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 12:07:35,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 12:07:35,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-24 12:07:35,640 INFO L87 Difference]: Start difference. First operand 115 states and 154 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-24 12:07:40,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 12:07:40,727 INFO L93 Difference]: Finished difference Result 175 states and 227 transitions. [2023-12-24 12:07:40,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 12:07:40,728 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 118 [2023-12-24 12:07:40,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 12:07:40,730 INFO L225 Difference]: With dead ends: 175 [2023-12-24 12:07:40,730 INFO L226 Difference]: Without dead ends: 173 [2023-12-24 12:07:40,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-24 12:07:40,732 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 54 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-24 12:07:40,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 264 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-24 12:07:40,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-12-24 12:07:40,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 131. [2023-12-24 12:07:40,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 77 states have (on average 1.1168831168831168) internal successors, (86), 78 states have internal predecessors, (86), 44 states have call successors, (44), 9 states have call predecessors, (44), 9 states have return successors, (44), 43 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-24 12:07:40,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 174 transitions. [2023-12-24 12:07:40,757 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 174 transitions. Word has length 118 [2023-12-24 12:07:40,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 12:07:40,758 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 174 transitions. [2023-12-24 12:07:40,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-24 12:07:40,758 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 174 transitions. [2023-12-24 12:07:40,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-24 12:07:40,760 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 12:07:40,761 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 12:07:40,768 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 [2023-12-24 12:07:40,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 12:07:40,961 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 12:07:40,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 12:07:40,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1399716356, now seen corresponding path program 1 times [2023-12-24 12:07:40,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 12:07:40,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871424676] [2023-12-24 12:07:40,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 12:07:40,963 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 12:07:40,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 12:07:40,964 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 12:07:40,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-24 12:07:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 12:07:41,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-24 12:07:41,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 12:08:27,803 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 314 proven. 9 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2023-12-24 12:08:27,804 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 12:08:36,673 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-24 12:08:36,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 12:08:36,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871424676] [2023-12-24 12:08:36,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871424676] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 12:08:36,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 12:08:36,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 19 [2023-12-24 12:08:36,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281666677] [2023-12-24 12:08:36,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 12:08:36,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 12:08:36,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 12:08:36,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 12:08:36,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2023-12-24 12:08:36,676 INFO L87 Difference]: Start difference. First operand 131 states and 174 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-24 12:08:42,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 12:08:42,871 INFO L93 Difference]: Finished difference Result 168 states and 220 transitions. [2023-12-24 12:08:42,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 12:08:42,882 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 119 [2023-12-24 12:08:42,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 12:08:42,885 INFO L225 Difference]: With dead ends: 168 [2023-12-24 12:08:42,885 INFO L226 Difference]: Without dead ends: 166 [2023-12-24 12:08:42,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2023-12-24 12:08:42,886 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 67 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-12-24 12:08:42,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 252 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-12-24 12:08:42,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2023-12-24 12:08:42,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 145. [2023-12-24 12:08:42,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 86 states have (on average 1.1046511627906976) internal successors, (95), 87 states have internal predecessors, (95), 48 states have call successors, (48), 10 states have call predecessors, (48), 10 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-24 12:08:42,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 191 transitions. [2023-12-24 12:08:42,924 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 191 transitions. Word has length 119 [2023-12-24 12:08:42,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 12:08:42,924 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 191 transitions. [2023-12-24 12:08:42,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-24 12:08:42,925 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 191 transitions. [2023-12-24 12:08:42,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-24 12:08:42,926 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 12:08:42,926 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 12:08:42,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-24 12:08:43,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 12:08:43,137 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 12:08:43,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 12:08:43,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1342458054, now seen corresponding path program 1 times [2023-12-24 12:08:43,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 12:08:43,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151525292] [2023-12-24 12:08:43,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 12:08:43,138 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 12:08:43,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 12:08:43,140 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 12:08:43,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-24 12:08:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 12:08:43,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-24 12:08:43,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 12:09:03,605 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-24 12:09:03,606 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 12:09:03,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 12:09:03,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151525292] [2023-12-24 12:09:03,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [151525292] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 12:09:03,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 12:09:03,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-24 12:09:03,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987645392] [2023-12-24 12:09:03,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 12:09:03,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 12:09:03,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 12:09:03,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 12:09:03,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-24 12:09:03,608 INFO L87 Difference]: Start difference. First operand 145 states and 191 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-24 12:09:07,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 12:09:07,118 INFO L93 Difference]: Finished difference Result 166 states and 218 transitions. [2023-12-24 12:09:07,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-24 12:09:07,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 119 [2023-12-24 12:09:07,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 12:09:07,120 INFO L225 Difference]: With dead ends: 166 [2023-12-24 12:09:07,120 INFO L226 Difference]: Without dead ends: 164 [2023-12-24 12:09:07,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-24 12:09:07,121 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 66 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-24 12:09:07,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 336 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-24 12:09:07,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-12-24 12:09:07,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 141. [2023-12-24 12:09:07,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 82 states have (on average 1.0975609756097562) internal successors, (90), 83 states have internal predecessors, (90), 48 states have call successors, (48), 10 states have call predecessors, (48), 10 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-24 12:09:07,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 186 transitions. [2023-12-24 12:09:07,143 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 186 transitions. Word has length 119 [2023-12-24 12:09:07,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 12:09:07,144 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 186 transitions. [2023-12-24 12:09:07,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-24 12:09:07,144 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 186 transitions. [2023-12-24 12:09:07,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-12-24 12:09:07,147 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 12:09:07,147 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 12:09:07,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-24 12:09:07,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 12:09:07,354 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 12:09:07,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 12:09:07,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1727575861, now seen corresponding path program 1 times [2023-12-24 12:09:07,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 12:09:07,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023551783] [2023-12-24 12:09:07,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 12:09:07,355 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 12:09:07,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 12:09:07,358 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 12:09:07,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-24 12:09:07,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 12:09:07,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-24 12:09:07,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 12:09:30,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3156 backedges. 707 proven. 9 refuted. 0 times theorem prover too weak. 2440 trivial. 0 not checked. [2023-12-24 12:09:30,474 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 12:09:51,506 INFO L134 CoverageAnalysis]: Checked inductivity of 3156 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3151 trivial. 0 not checked. [2023-12-24 12:09:51,506 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 12:09:51,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023551783] [2023-12-24 12:09:51,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1023551783] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-24 12:09:51,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 12:09:51,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 19 [2023-12-24 12:09:51,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548360783] [2023-12-24 12:09:51,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 12:09:51,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-24 12:09:51,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 12:09:51,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-24 12:09:51,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2023-12-24 12:09:51,509 INFO L87 Difference]: Start difference. First operand 141 states and 186 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-24 12:09:58,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-24 12:10:00,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-24 12:10:05,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-24 12:10:09,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-24 12:10:13,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-24 12:10:14,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 12:10:14,400 INFO L93 Difference]: Finished difference Result 169 states and 220 transitions. [2023-12-24 12:10:14,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-24 12:10:14,401 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 236 [2023-12-24 12:10:14,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 12:10:14,402 INFO L225 Difference]: With dead ends: 169 [2023-12-24 12:10:14,402 INFO L226 Difference]: Without dead ends: 0 [2023-12-24 12:10:14,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2023-12-24 12:10:14,405 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 47 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2023-12-24 12:10:14,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 212 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 38 Invalid, 3 Unknown, 0 Unchecked, 20.6s Time] [2023-12-24 12:10:14,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-24 12:10:14,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-24 12:10:14,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-24 12:10:14,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-24 12:10:14,407 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 236 [2023-12-24 12:10:14,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 12:10:14,407 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-24 12:10:14,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-24 12:10:14,407 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-24 12:10:14,407 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-24 12:10:14,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 12:10:14,418 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 [2023-12-24 12:10:14,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-24 12:10:14,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-24 12:10:28,119 WARN L293 SmtUtils]: Spent 12.60s on a formula simplification. DAG size of input: 287 DAG size of output: 1 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-24 12:10:28,124 INFO L899 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2023-12-24 12:10:28,124 INFO L899 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2023-12-24 12:10:28,125 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-24 12:10:28,125 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-24 12:10:28,125 INFO L899 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2023-12-24 12:10:28,125 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-24 12:10:28,125 INFO L902 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: true [2023-12-24 12:10:28,125 INFO L902 garLoopResultBuilder]: At program point L77-1(line 77) the Hoare annotation is: true [2023-12-24 12:10:28,125 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 54) no Hoare annotation was computed. [2023-12-24 12:10:28,125 INFO L899 garLoopResultBuilder]: For program point L44-1(lines 41 65) no Hoare annotation was computed. [2023-12-24 12:10:28,125 INFO L899 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2023-12-24 12:10:28,125 INFO L902 garLoopResultBuilder]: At program point L94(line 94) the Hoare annotation is: true [2023-12-24 12:10:28,125 INFO L902 garLoopResultBuilder]: At program point L94-1(line 94) the Hoare annotation is: true [2023-12-24 12:10:28,126 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-24 12:10:28,126 INFO L899 garLoopResultBuilder]: For program point L78(line 78) no Hoare annotation was computed. [2023-12-24 12:10:28,126 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 53) no Hoare annotation was computed. [2023-12-24 12:10:28,126 INFO L902 garLoopResultBuilder]: At program point L74(line 74) the Hoare annotation is: true [2023-12-24 12:10:28,126 INFO L902 garLoopResultBuilder]: At program point L74-1(line 74) the Hoare annotation is: true [2023-12-24 12:10:28,126 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-24 12:10:28,126 INFO L899 garLoopResultBuilder]: For program point L95(lines 66 96) no Hoare annotation was computed. [2023-12-24 12:10:28,126 INFO L902 garLoopResultBuilder]: At program point L91(line 91) the Hoare annotation is: true [2023-12-24 12:10:28,126 INFO L902 garLoopResultBuilder]: At program point L91-1(line 91) the Hoare annotation is: true [2023-12-24 12:10:28,127 INFO L902 garLoopResultBuilder]: At program point L87(line 87) the Hoare annotation is: true [2023-12-24 12:10:28,127 INFO L902 garLoopResultBuilder]: At program point L87-1(line 87) the Hoare annotation is: true [2023-12-24 12:10:28,127 INFO L902 garLoopResultBuilder]: At program point L83(line 83) the Hoare annotation is: true [2023-12-24 12:10:28,127 INFO L902 garLoopResultBuilder]: At program point L83-1(line 83) the Hoare annotation is: true [2023-12-24 12:10:28,127 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 50) no Hoare annotation was computed. [2023-12-24 12:10:28,127 INFO L899 garLoopResultBuilder]: For program point L75(line 75) no Hoare annotation was computed. [2023-12-24 12:10:28,127 INFO L895 garLoopResultBuilder]: At program point L108-2(lines 108 114) the Hoare annotation is: (or (= ~var_1_9~0 (_ bv0 8)) (= ((_ zero_extend 24) ~var_1_12~0) ((_ zero_extend 24) ~var_1_8~0))) [2023-12-24 12:10:28,127 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-24 12:10:28,127 INFO L899 garLoopResultBuilder]: For program point L108-3(lines 108 114) no Hoare annotation was computed. [2023-12-24 12:10:28,128 INFO L895 garLoopResultBuilder]: At program point L71(line 71) the Hoare annotation is: (or (= ~var_1_9~0 (_ bv0 8)) (= ((_ zero_extend 24) ~var_1_12~0) ((_ zero_extend 24) ~var_1_8~0))) [2023-12-24 12:10:28,128 INFO L895 garLoopResultBuilder]: At program point L71-1(line 71) the Hoare annotation is: (or (= ~var_1_9~0 (_ bv0 8)) (= ((_ zero_extend 24) ~var_1_12~0) ((_ zero_extend 24) ~var_1_8~0))) [2023-12-24 12:10:28,128 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2023-12-24 12:10:28,128 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 61) no Hoare annotation was computed. [2023-12-24 12:10:28,128 INFO L899 garLoopResultBuilder]: For program point L59-2(lines 59 61) no Hoare annotation was computed. [2023-12-24 12:10:28,128 INFO L902 garLoopResultBuilder]: At program point L88(line 88) the Hoare annotation is: true [2023-12-24 12:10:28,128 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 55 57) no Hoare annotation was computed. [2023-12-24 12:10:28,128 INFO L902 garLoopResultBuilder]: At program point L84(line 84) the Hoare annotation is: true [2023-12-24 12:10:28,128 INFO L902 garLoopResultBuilder]: At program point L80(line 80) the Hoare annotation is: true [2023-12-24 12:10:28,129 INFO L902 garLoopResultBuilder]: At program point L80-1(line 80) the Hoare annotation is: true [2023-12-24 12:10:28,129 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2023-12-24 12:10:28,129 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (or (= ~var_1_9~0 (_ bv0 8)) (= ((_ zero_extend 24) ~var_1_12~0) ((_ zero_extend 24) ~var_1_8~0))) [2023-12-24 12:10:28,129 INFO L895 garLoopResultBuilder]: At program point L68-1(line 68) the Hoare annotation is: (or (= ~var_1_9~0 (_ bv0 8)) (= ((_ zero_extend 24) ~var_1_12~0) ((_ zero_extend 24) ~var_1_8~0))) [2023-12-24 12:10:28,129 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-24 12:10:28,129 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-24 12:10:28,129 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-24 12:10:28,129 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-24 12:10:28,132 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-24 12:10:28,133 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 12:10:28,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 12:10:28 BoogieIcfgContainer [2023-12-24 12:10:28,146 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 12:10:28,147 INFO L158 Benchmark]: Toolchain (without parser) took 219157.68ms. Allocated memory was 264.2MB in the beginning and 788.5MB in the end (delta: 524.3MB). Free memory was 207.6MB in the beginning and 450.4MB in the end (delta: -242.8MB). Peak memory consumption was 282.5MB. Max. memory is 8.0GB. [2023-12-24 12:10:28,147 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 181.4MB. Free memory is still 130.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 12:10:28,147 INFO L158 Benchmark]: CACSL2BoogieTranslator took 494.50ms. Allocated memory is still 264.2MB. Free memory was 207.6MB in the beginning and 194.2MB in the end (delta: 13.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-24 12:10:28,148 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.51ms. Allocated memory is still 264.2MB. Free memory was 194.2MB in the beginning and 192.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-24 12:10:28,150 INFO L158 Benchmark]: Boogie Preprocessor took 113.84ms. Allocated memory is still 264.2MB. Free memory was 192.2MB in the beginning and 189.4MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-24 12:10:28,150 INFO L158 Benchmark]: RCFGBuilder took 985.30ms. Allocated memory is still 264.2MB. Free memory was 189.4MB in the beginning and 168.1MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-24 12:10:28,151 INFO L158 Benchmark]: TraceAbstraction took 217486.10ms. Allocated memory was 264.2MB in the beginning and 788.5MB in the end (delta: 524.3MB). Free memory was 167.4MB in the beginning and 450.4MB in the end (delta: -283.0MB). Peak memory consumption was 241.6MB. Max. memory is 8.0GB. [2023-12-24 12:10:28,152 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 181.4MB. Free memory is still 130.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 494.50ms. Allocated memory is still 264.2MB. Free memory was 207.6MB in the beginning and 194.2MB in the end (delta: 13.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 71.51ms. Allocated memory is still 264.2MB. Free memory was 194.2MB in the beginning and 192.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 113.84ms. Allocated memory is still 264.2MB. Free memory was 192.2MB in the beginning and 189.4MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 985.30ms. Allocated memory is still 264.2MB. Free memory was 189.4MB in the beginning and 168.1MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 217486.10ms. Allocated memory was 264.2MB in the beginning and 788.5MB in the end (delta: 524.3MB). Free memory was 167.4MB in the beginning and 450.4MB in the end (delta: -283.0MB). Peak memory consumption was 241.6MB. 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 217.4s, OverallIterations: 7, TraceHistogramMax: 40, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 40.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 13.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 421 SdHoareTripleChecker+Valid, 34.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 400 mSDsluCounter, 1545 SdHoareTripleChecker+Invalid, 32.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1004 mSDsCounter, 95 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 820 IncrementalHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 95 mSolverCounterUnsat, 541 mSDtfsCounter, 820 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1313 GetRequests, 1229 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 21.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=145occurred in iteration=5, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 122 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 137 PreInvPairs, 198 NumberOfFragments, 62 HoareAnnotationTreeSize, 137 FormulaSimplifications, 12376 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 22 FormulaSimplificationsInter, 4229 FormulaSimplificationTreeSizeReductionInter, 13.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 159.8s InterpolantComputationTime, 946 NumberOfCodeBlocks, 946 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1292 ConstructedInterpolants, 7 QuantifiedInterpolants, 4172 SizeOfPredicates, 94 NumberOfNonLiveVariables, 1556 ConjunctsInSsa, 92 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 11614/11632 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: ((var_1_9 == 0) || (var_1_12 == var_1_8)) RESULT: Ultimate proved your program to be correct! [2023-12-24 12:10:28,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...