/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label29.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 09:25:24,235 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 09:25:24,314 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 09:25:24,319 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 09:25:24,320 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 09:25:24,338 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 09:25:24,339 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 09:25:24,339 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 09:25:24,339 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 09:25:24,340 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 09:25:24,340 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 09:25:24,340 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 09:25:24,341 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 09:25:24,341 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 09:25:24,341 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 09:25:24,342 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 09:25:24,342 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 09:25:24,343 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 09:25:24,343 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 09:25:24,343 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 09:25:24,343 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 09:25:24,344 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 09:25:24,344 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 09:25:24,345 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 09:25:24,345 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 09:25:24,345 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 09:25:24,346 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 09:25:24,346 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 09:25:24,346 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 09:25:24,347 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 09:25:24,347 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 09:25:24,347 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 09:25:24,347 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 09:25:24,348 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 09:25:24,348 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 09:25:24,348 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 09:25:24,349 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 09:25:24,349 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 09:25:24,349 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 09:25:24,349 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 09:25:24,349 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 09:25:24,354 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 09:25:24,354 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 09:25:24,355 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 09:25:24,355 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 09:25:24,355 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 09:25:24,355 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 09:25:24,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 09:25:24,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 09:25:24,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 09:25:24,629 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 09:25:24,629 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 09:25:24,631 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label29.c [2023-12-16 09:25:25,931 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 09:25:26,192 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 09:25:26,192 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label29.c [2023-12-16 09:25:26,219 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a9857395/8da8808079864b5d8df0cabbba58ee9e/FLAG752081531 [2023-12-16 09:25:26,235 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a9857395/8da8808079864b5d8df0cabbba58ee9e [2023-12-16 09:25:26,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 09:25:26,242 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 09:25:26,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 09:25:26,243 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 09:25:26,249 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 09:25:26,250 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:25:26" (1/1) ... [2023-12-16 09:25:26,251 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a1944c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:26, skipping insertion in model container [2023-12-16 09:25:26,252 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:25:26" (1/1) ... [2023-12-16 09:25:26,304 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 09:25:26,485 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label29.c[1924,1937] [2023-12-16 09:25:26,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 09:25:26,741 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 09:25:26,769 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label29.c[1924,1937] [2023-12-16 09:25:26,881 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 09:25:26,904 INFO L206 MainTranslator]: Completed translation [2023-12-16 09:25:26,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:26 WrapperNode [2023-12-16 09:25:26,907 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 09:25:26,908 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 09:25:26,909 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 09:25:26,909 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 09:25:26,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:26" (1/1) ... [2023-12-16 09:25:26,943 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:26" (1/1) ... [2023-12-16 09:25:27,012 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 857 [2023-12-16 09:25:27,013 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 09:25:27,014 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 09:25:27,014 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 09:25:27,014 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 09:25:27,024 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:26" (1/1) ... [2023-12-16 09:25:27,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:26" (1/1) ... [2023-12-16 09:25:27,037 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:26" (1/1) ... [2023-12-16 09:25:27,073 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 09:25:27,073 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:26" (1/1) ... [2023-12-16 09:25:27,073 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:26" (1/1) ... [2023-12-16 09:25:27,106 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:26" (1/1) ... [2023-12-16 09:25:27,125 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:26" (1/1) ... [2023-12-16 09:25:27,136 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:26" (1/1) ... [2023-12-16 09:25:27,142 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:26" (1/1) ... [2023-12-16 09:25:27,152 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 09:25:27,154 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 09:25:27,154 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 09:25:27,154 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 09:25:27,155 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:26" (1/1) ... [2023-12-16 09:25:27,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 09:25:27,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 09:25:27,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 09:25:27,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 09:25:27,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 09:25:27,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 09:25:27,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 09:25:27,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 09:25:27,301 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 09:25:27,304 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 09:25:30,465 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 09:25:30,518 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 09:25:30,518 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 09:25:30,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:25:30 BoogieIcfgContainer [2023-12-16 09:25:30,519 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 09:25:30,521 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 09:25:30,521 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 09:25:30,524 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 09:25:30,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 09:25:26" (1/3) ... [2023-12-16 09:25:30,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cdda208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:25:30, skipping insertion in model container [2023-12-16 09:25:30,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:25:26" (2/3) ... [2023-12-16 09:25:30,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cdda208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:25:30, skipping insertion in model container [2023-12-16 09:25:30,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:25:30" (3/3) ... [2023-12-16 09:25:30,526 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label29.c [2023-12-16 09:25:30,544 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 09:25:30,544 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 09:25:30,607 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 09:25:30,613 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;@33fa6106, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 09:25:30,613 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 09:25:30,620 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:30,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-16 09:25:30,627 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:25:30,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:25:30,628 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:25:30,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:25:30,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1285336573, now seen corresponding path program 1 times [2023-12-16 09:25:30,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:25:30,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [576399451] [2023-12-16 09:25:30,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:25:30,647 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:30,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:25:30,652 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:25:30,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 09:25:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:25:30,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 09:25:30,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:25:30,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:25:30,739 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:25:30,740 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:25:30,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [576399451] [2023-12-16 09:25:30,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [576399451] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:25:30,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:25:30,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:25:30,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131329397] [2023-12-16 09:25:30,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:25:30,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 09:25:30,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:25:30,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 09:25:30,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 09:25:30,781 INFO L87 Difference]: Start difference. First operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:30,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:25:30,838 INFO L93 Difference]: Finished difference Result 365 states and 719 transitions. [2023-12-16 09:25:30,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 09:25:30,841 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-12-16 09:25:30,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:25:30,850 INFO L225 Difference]: With dead ends: 365 [2023-12-16 09:25:30,850 INFO L226 Difference]: Without dead ends: 181 [2023-12-16 09:25:30,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 09:25:30,856 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 09:25:30,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 295 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 09:25:30,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-12-16 09:25:30,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2023-12-16 09:25:30,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.6388888888888888) internal successors, (295), 180 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:30,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 295 transitions. [2023-12-16 09:25:30,896 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 295 transitions. Word has length 15 [2023-12-16 09:25:30,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:25:30,897 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 295 transitions. [2023-12-16 09:25:30,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:30,897 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 295 transitions. [2023-12-16 09:25:30,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-16 09:25:30,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:25:30,898 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:25:30,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 09:25:31,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:31,099 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:25:31,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:25:31,100 INFO L85 PathProgramCache]: Analyzing trace with hash -881122554, now seen corresponding path program 1 times [2023-12-16 09:25:31,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:25:31,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730004751] [2023-12-16 09:25:31,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:25:31,101 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:31,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:25:31,102 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:25:31,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 09:25:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:25:31,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:25:31,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:25:31,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:25:31,172 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:25:31,173 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:25:31,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730004751] [2023-12-16 09:25:31,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730004751] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:25:31,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:25:31,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:25:31,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439122030] [2023-12-16 09:25:31,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:25:31,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:25:31,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:25:31,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:25:31,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:25:31,176 INFO L87 Difference]: Start difference. First operand 181 states and 295 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:34,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:25:34,178 INFO L93 Difference]: Finished difference Result 539 states and 882 transitions. [2023-12-16 09:25:34,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:25:34,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-12-16 09:25:34,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:25:34,181 INFO L225 Difference]: With dead ends: 539 [2023-12-16 09:25:34,181 INFO L226 Difference]: Without dead ends: 359 [2023-12-16 09:25:34,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:25:34,183 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 166 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-16 09:25:34,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 76 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-16 09:25:34,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-12-16 09:25:34,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2023-12-16 09:25:34,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 358 states have (on average 1.4553072625698324) internal successors, (521), 358 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:34,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 521 transitions. [2023-12-16 09:25:34,206 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 521 transitions. Word has length 15 [2023-12-16 09:25:34,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:25:34,206 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 521 transitions. [2023-12-16 09:25:34,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:34,206 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 521 transitions. [2023-12-16 09:25:34,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 09:25:34,208 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:25:34,209 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:25:34,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 09:25:34,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:34,411 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:25:34,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:25:34,412 INFO L85 PathProgramCache]: Analyzing trace with hash 534941333, now seen corresponding path program 1 times [2023-12-16 09:25:34,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:25:34,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [104471086] [2023-12-16 09:25:34,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:25:34,414 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:34,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:25:34,415 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:25:34,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 09:25:34,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:25:34,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:25:34,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:25:34,634 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:25:34,634 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:25:34,634 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:25:34,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [104471086] [2023-12-16 09:25:34,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [104471086] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:25:34,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:25:34,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:25:34,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641457612] [2023-12-16 09:25:34,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:25:34,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:25:34,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:25:34,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:25:34,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:25:34,637 INFO L87 Difference]: Start difference. First operand 359 states and 521 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:38,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:25:38,141 INFO L93 Difference]: Finished difference Result 1073 states and 1560 transitions. [2023-12-16 09:25:38,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:25:38,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-12-16 09:25:38,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:25:38,145 INFO L225 Difference]: With dead ends: 1073 [2023-12-16 09:25:38,145 INFO L226 Difference]: Without dead ends: 715 [2023-12-16 09:25:38,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:25:38,148 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 118 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-16 09:25:38,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 100 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-16 09:25:38,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2023-12-16 09:25:38,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 715. [2023-12-16 09:25:38,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 714 states have (on average 1.3459383753501402) internal successors, (961), 714 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:38,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 961 transitions. [2023-12-16 09:25:38,177 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 961 transitions. Word has length 81 [2023-12-16 09:25:38,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:25:38,177 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 961 transitions. [2023-12-16 09:25:38,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:38,178 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 961 transitions. [2023-12-16 09:25:38,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-16 09:25:38,179 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:25:38,180 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:25:38,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 09:25:38,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:38,382 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:25:38,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:25:38,383 INFO L85 PathProgramCache]: Analyzing trace with hash 2082388784, now seen corresponding path program 1 times [2023-12-16 09:25:38,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:25:38,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102092459] [2023-12-16 09:25:38,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:25:38,383 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:38,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:25:38,384 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:25:38,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 09:25:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:25:38,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 09:25:38,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:25:38,608 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:25:38,609 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:25:38,611 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:25:38,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102092459] [2023-12-16 09:25:38,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102092459] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:25:38,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:25:38,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:25:38,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506817137] [2023-12-16 09:25:38,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:25:38,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:25:38,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:25:38,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:25:38,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:25:38,614 INFO L87 Difference]: Start difference. First operand 715 states and 961 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:41,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:25:41,680 INFO L93 Difference]: Finished difference Result 1963 states and 2654 transitions. [2023-12-16 09:25:41,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:25:41,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2023-12-16 09:25:41,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:25:41,687 INFO L225 Difference]: With dead ends: 1963 [2023-12-16 09:25:41,687 INFO L226 Difference]: Without dead ends: 1249 [2023-12-16 09:25:41,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:25:41,694 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 129 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-16 09:25:41,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 87 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-16 09:25:41,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2023-12-16 09:25:41,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1249. [2023-12-16 09:25:41,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1248 states have (on average 1.2459935897435896) internal successors, (1555), 1248 states have internal predecessors, (1555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:41,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1555 transitions. [2023-12-16 09:25:41,738 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1555 transitions. Word has length 83 [2023-12-16 09:25:41,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:25:41,739 INFO L495 AbstractCegarLoop]: Abstraction has 1249 states and 1555 transitions. [2023-12-16 09:25:41,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:41,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1555 transitions. [2023-12-16 09:25:41,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-16 09:25:41,751 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:25:41,752 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:25:41,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 09:25:41,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:41,954 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:25:41,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:25:41,955 INFO L85 PathProgramCache]: Analyzing trace with hash 355706494, now seen corresponding path program 1 times [2023-12-16 09:25:41,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:25:41,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1503154092] [2023-12-16 09:25:41,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:25:41,957 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:41,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:25:41,959 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:25:41,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 09:25:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:25:42,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 09:25:42,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:25:42,700 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:25:42,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:25:42,701 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:25:42,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1503154092] [2023-12-16 09:25:42,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1503154092] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:25:42,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:25:42,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 09:25:42,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455322856] [2023-12-16 09:25:42,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:25:42,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 09:25:42,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:25:42,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 09:25:42,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 09:25:42,703 INFO L87 Difference]: Start difference. First operand 1249 states and 1555 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:45,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:25:45,364 INFO L93 Difference]: Finished difference Result 2170 states and 2740 transitions. [2023-12-16 09:25:45,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 09:25:45,365 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 164 [2023-12-16 09:25:45,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:25:45,369 INFO L225 Difference]: With dead ends: 2170 [2023-12-16 09:25:45,370 INFO L226 Difference]: Without dead ends: 1071 [2023-12-16 09:25:45,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 09:25:45,372 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 110 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 09:25:45,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 110 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 09:25:45,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-12-16 09:25:45,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1071. [2023-12-16 09:25:45,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1070 states have (on average 1.2392523364485981) internal successors, (1326), 1070 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:45,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1326 transitions. [2023-12-16 09:25:45,390 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1326 transitions. Word has length 164 [2023-12-16 09:25:45,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:25:45,391 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1326 transitions. [2023-12-16 09:25:45,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:45,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1326 transitions. [2023-12-16 09:25:45,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-12-16 09:25:45,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:25:45,393 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:25:45,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 09:25:45,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:45,600 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:25:45,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:25:45,600 INFO L85 PathProgramCache]: Analyzing trace with hash -968560129, now seen corresponding path program 1 times [2023-12-16 09:25:45,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:25:45,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2000772970] [2023-12-16 09:25:45,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:25:45,602 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:45,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:25:45,603 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:25:45,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 09:25:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:25:45,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 09:25:45,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:25:46,541 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-16 09:25:46,541 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 09:25:46,541 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:25:46,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2000772970] [2023-12-16 09:25:46,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2000772970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 09:25:46,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 09:25:46,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 09:25:46,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67379027] [2023-12-16 09:25:46,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:25:46,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:25:46,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:25:46,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:25:46,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:25:46,543 INFO L87 Difference]: Start difference. First operand 1071 states and 1326 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:48,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:25:48,685 INFO L93 Difference]: Finished difference Result 1785 states and 2286 transitions. [2023-12-16 09:25:48,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:25:48,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 190 [2023-12-16 09:25:48,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:25:48,689 INFO L225 Difference]: With dead ends: 1785 [2023-12-16 09:25:48,690 INFO L226 Difference]: Without dead ends: 1071 [2023-12-16 09:25:48,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 09:25:48,691 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 73 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 09:25:48,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 121 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 09:25:48,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-12-16 09:25:48,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1071. [2023-12-16 09:25:48,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1070 states have (on average 1.233644859813084) internal successors, (1320), 1070 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:48,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1320 transitions. [2023-12-16 09:25:48,709 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1320 transitions. Word has length 190 [2023-12-16 09:25:48,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:25:48,710 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1320 transitions. [2023-12-16 09:25:48,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:48,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1320 transitions. [2023-12-16 09:25:48,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2023-12-16 09:25:48,713 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:25:48,713 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:25:48,724 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-16 09:25:48,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:48,918 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:25:48,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:25:48,918 INFO L85 PathProgramCache]: Analyzing trace with hash 951663311, now seen corresponding path program 1 times [2023-12-16 09:25:48,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:25:48,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155907175] [2023-12-16 09:25:48,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:25:48,920 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:48,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:25:48,921 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:25:48,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 09:25:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:25:49,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 09:25:49,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:25:49,639 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 41 proven. 135 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-16 09:25:49,640 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 09:25:50,305 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-16 09:25:50,305 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:25:50,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155907175] [2023-12-16 09:25:50,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [155907175] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 09:25:50,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 09:25:50,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-16 09:25:50,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719257263] [2023-12-16 09:25:50,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:25:50,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:25:50,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:25:50,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:25:50,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 09:25:50,308 INFO L87 Difference]: Start difference. First operand 1071 states and 1320 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:56,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:25:56,960 INFO L93 Difference]: Finished difference Result 2141 states and 2811 transitions. [2023-12-16 09:25:56,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:25:56,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 294 [2023-12-16 09:25:56,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:25:56,965 INFO L225 Difference]: With dead ends: 2141 [2023-12-16 09:25:56,965 INFO L226 Difference]: Without dead ends: 1427 [2023-12-16 09:25:56,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 586 GetRequests, 583 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 09:25:56,967 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 132 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-12-16 09:25:56,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 57 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-12-16 09:25:56,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2023-12-16 09:25:56,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1427. [2023-12-16 09:25:56,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1427 states, 1426 states have (on average 1.238429172510519) internal successors, (1766), 1426 states have internal predecessors, (1766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:56,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1427 states to 1427 states and 1766 transitions. [2023-12-16 09:25:56,989 INFO L78 Accepts]: Start accepts. Automaton has 1427 states and 1766 transitions. Word has length 294 [2023-12-16 09:25:56,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:25:56,989 INFO L495 AbstractCegarLoop]: Abstraction has 1427 states and 1766 transitions. [2023-12-16 09:25:56,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:25:56,990 INFO L276 IsEmpty]: Start isEmpty. Operand 1427 states and 1766 transitions. [2023-12-16 09:25:56,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2023-12-16 09:25:56,995 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:25:56,995 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:25:57,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 09:25:57,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:57,201 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:25:57,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:25:57,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1084376012, now seen corresponding path program 1 times [2023-12-16 09:25:57,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:25:57,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [104064711] [2023-12-16 09:25:57,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:25:57,203 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:25:57,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:25:57,205 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:25:57,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 09:25:57,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:25:57,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 09:25:57,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:25:57,778 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 318 proven. 159 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-12-16 09:25:57,779 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 09:25:58,263 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-12-16 09:25:58,264 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:25:58,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [104064711] [2023-12-16 09:25:58,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [104064711] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 09:25:58,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 09:25:58,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-16 09:25:58,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045291684] [2023-12-16 09:25:58,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 09:25:58,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 09:25:58,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:25:58,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 09:25:58,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 09:25:58,266 INFO L87 Difference]: Start difference. First operand 1427 states and 1766 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:26:04,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 09:26:04,272 INFO L93 Difference]: Finished difference Result 3209 states and 4149 transitions. [2023-12-16 09:26:04,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 09:26:04,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 405 [2023-12-16 09:26:04,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 09:26:04,281 INFO L225 Difference]: With dead ends: 3209 [2023-12-16 09:26:04,281 INFO L226 Difference]: Without dead ends: 2139 [2023-12-16 09:26:04,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 808 GetRequests, 805 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 09:26:04,283 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 113 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-12-16 09:26:04,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 245 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-12-16 09:26:04,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2023-12-16 09:26:04,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 2139. [2023-12-16 09:26:04,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2138 states have (on average 1.2464920486435922) internal successors, (2665), 2138 states have internal predecessors, (2665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:26:04,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 2665 transitions. [2023-12-16 09:26:04,324 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 2665 transitions. Word has length 405 [2023-12-16 09:26:04,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 09:26:04,325 INFO L495 AbstractCegarLoop]: Abstraction has 2139 states and 2665 transitions. [2023-12-16 09:26:04,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 09:26:04,325 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 2665 transitions. [2023-12-16 09:26:04,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2023-12-16 09:26:04,331 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 09:26:04,331 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:26:04,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 09:26:04,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:26:04,537 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 09:26:04,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 09:26:04,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1852036700, now seen corresponding path program 1 times [2023-12-16 09:26:04,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 09:26:04,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1155600054] [2023-12-16 09:26:04,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 09:26:04,539 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:26:04,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 09:26:04,541 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 09:26:04,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 09:26:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 09:26:04,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 09:26:04,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 09:26:05,958 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 366 proven. 277 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:26:05,958 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 09:26:12,810 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 614 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 09:26:12,811 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 09:26:12,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1155600054] [2023-12-16 09:26:12,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1155600054] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 09:26:12,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 09:26:12,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-12-16 09:26:12,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24876325] [2023-12-16 09:26:12,811 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 09:26:12,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 09:26:12,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 09:26:12,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 09:26:12,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-16 09:26:12,814 INFO L87 Difference]: Start difference. First operand 2139 states and 2665 transitions. Second operand has 9 states, 9 states have (on average 84.11111111111111) internal successors, (757), 9 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-16 09:26:34,684 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 09:26:34,684 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 09:26:34,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 09:26:34,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 842 GetRequests, 834 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-12-16 09:26:34,747 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 741 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 2444 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 2709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 2444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2023-12-16 09:26:34,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 54 Invalid, 2709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [265 Valid, 2444 Invalid, 0 Unknown, 0 Unchecked, 21.6s Time] [2023-12-16 09:26:34,748 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 09:26:34,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 09:26:34,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 09:26:34,950 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (2139states) and FLOYD_HOARE automaton (currently 9 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (3646 states constructed, input type IntersectNwa). [2023-12-16 09:26:34,954 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 09:26:34,956 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 09:26:34,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 09:26:34 BoogieIcfgContainer [2023-12-16 09:26:34,958 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 09:26:34,959 INFO L158 Benchmark]: Toolchain (without parser) took 68717.02ms. Allocated memory was 303.0MB in the beginning and 379.6MB in the end (delta: 76.5MB). Free memory was 246.2MB in the beginning and 315.0MB in the end (delta: -68.9MB). Peak memory consumption was 215.1MB. Max. memory is 8.0GB. [2023-12-16 09:26:34,959 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 182.5MB. Free memory is still 127.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 09:26:34,959 INFO L158 Benchmark]: CACSL2BoogieTranslator took 664.37ms. Allocated memory is still 303.0MB. Free memory was 245.7MB in the beginning and 208.0MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2023-12-16 09:26:34,959 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.70ms. Allocated memory is still 303.0MB. Free memory was 208.0MB in the beginning and 201.1MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 09:26:34,959 INFO L158 Benchmark]: Boogie Preprocessor took 139.47ms. Allocated memory is still 303.0MB. Free memory was 201.1MB in the beginning and 194.3MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 09:26:34,960 INFO L158 Benchmark]: RCFGBuilder took 3364.79ms. Allocated memory is still 303.0MB. Free memory was 194.3MB in the beginning and 164.3MB in the end (delta: 30.0MB). Peak memory consumption was 42.6MB. Max. memory is 8.0GB. [2023-12-16 09:26:34,972 INFO L158 Benchmark]: TraceAbstraction took 64437.45ms. Allocated memory was 303.0MB in the beginning and 379.6MB in the end (delta: 76.5MB). Free memory was 163.8MB in the beginning and 315.0MB in the end (delta: -151.3MB). Peak memory consumption was 131.6MB. Max. memory is 8.0GB. [2023-12-16 09:26:34,975 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 182.5MB. Free memory is still 127.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 664.37ms. Allocated memory is still 303.0MB. Free memory was 245.7MB in the beginning and 208.0MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 104.70ms. Allocated memory is still 303.0MB. Free memory was 208.0MB in the beginning and 201.1MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 139.47ms. Allocated memory is still 303.0MB. Free memory was 201.1MB in the beginning and 194.3MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 3364.79ms. Allocated memory is still 303.0MB. Free memory was 194.3MB in the beginning and 164.3MB in the end (delta: 30.0MB). Peak memory consumption was 42.6MB. Max. memory is 8.0GB. * TraceAbstraction took 64437.45ms. Allocated memory was 303.0MB in the beginning and 379.6MB in the end (delta: 76.5MB). Free memory was 163.8MB in the beginning and 315.0MB in the end (delta: -151.3MB). Peak memory consumption was 131.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 62). Cancelled while NwaCegarLoop was constructing difference of abstraction (2139states) and FLOYD_HOARE automaton (currently 9 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (3646 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 183 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 64.4s, OverallIterations: 9, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 49.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1582 SdHoareTripleChecker+Valid, 48.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1582 mSDsluCounter, 1145 SdHoareTripleChecker+Invalid, 43.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 74 mSDsCounter, 710 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6169 IncrementalHoareTripleChecker+Invalid, 6879 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 710 mSolverCounterUnsat, 1071 mSDtfsCounter, 6169 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2778 GetRequests, 2758 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2139occurred in iteration=8, InterpolantAutomatonStates: 24, 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 12.1s InterpolantComputationTime, 1668 NumberOfCodeBlocks, 1668 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2776 ConstructedInterpolants, 0 QuantifiedInterpolants, 11686 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2077 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 12 InterpolantComputations, 8 PerfectInterpolantSequences, 2652/3252 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown