java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/array-tiling/mbpr2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-09 05:33:07,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-09 05:33:07,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-09 05:33:08,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-09 05:33:08,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-09 05:33:08,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-09 05:33:08,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-09 05:33:08,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-09 05:33:08,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-09 05:33:08,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-09 05:33:08,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-09 05:33:08,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-09 05:33:08,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-09 05:33:08,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-09 05:33:08,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-09 05:33:08,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-09 05:33:08,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-09 05:33:08,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-09 05:33:08,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-09 05:33:08,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-09 05:33:08,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-09 05:33:08,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-09 05:33:08,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-09 05:33:08,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-09 05:33:08,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-09 05:33:08,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-09 05:33:08,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-09 05:33:08,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-09 05:33:08,042 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-09 05:33:08,055 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-09 05:33:08,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-09 05:33:08,056 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-09 05:33:08,056 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-09 05:33:08,057 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-09 05:33:08,057 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-09 05:33:08,057 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-09 05:33:08,057 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-09 05:33:08,058 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-09 05:33:08,058 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-09 05:33:08,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-09 05:33:08,059 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-09 05:33:08,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-09 05:33:08,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-09 05:33:08,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-09 05:33:08,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-09 05:33:08,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-09 05:33:08,060 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-09 05:33:08,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-09 05:33:08,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-09 05:33:08,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-09 05:33:08,061 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-09 05:33:08,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-09 05:33:08,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-09 05:33:08,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-09 05:33:08,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-09 05:33:08,062 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-09 05:33:08,062 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-09 05:33:08,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-09 05:33:08,062 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-09 05:33:08,089 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-09 05:33:08,101 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-09 05:33:08,105 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-09 05:33:08,106 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-09 05:33:08,107 INFO L275 PluginConnector]: CDTParser initialized [2019-09-09 05:33:08,107 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/mbpr2.c [2019-09-09 05:33:08,183 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbc5ee0de/8dd6682d52b4414d9046167a551b3385/FLAGf3b441907 [2019-09-09 05:33:08,629 INFO L306 CDTParser]: Found 1 translation units. [2019-09-09 05:33:08,629 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/mbpr2.c [2019-09-09 05:33:08,640 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbc5ee0de/8dd6682d52b4414d9046167a551b3385/FLAGf3b441907 [2019-09-09 05:33:08,950 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbc5ee0de/8dd6682d52b4414d9046167a551b3385 [2019-09-09 05:33:08,960 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-09 05:33:08,961 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-09 05:33:08,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-09 05:33:08,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-09 05:33:08,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-09 05:33:08,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 05:33:08" (1/1) ... [2019-09-09 05:33:08,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72d0733d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:33:08, skipping insertion in model container [2019-09-09 05:33:08,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 05:33:08" (1/1) ... [2019-09-09 05:33:08,983 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-09 05:33:09,005 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-09 05:33:09,234 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 05:33:09,239 INFO L188 MainTranslator]: Completed pre-run [2019-09-09 05:33:09,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 05:33:09,396 INFO L192 MainTranslator]: Completed translation [2019-09-09 05:33:09,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:33:09 WrapperNode [2019-09-09 05:33:09,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-09 05:33:09,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-09 05:33:09,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-09 05:33:09,398 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-09 05:33:09,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:33:09" (1/1) ... [2019-09-09 05:33:09,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:33:09" (1/1) ... [2019-09-09 05:33:09,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:33:09" (1/1) ... [2019-09-09 05:33:09,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:33:09" (1/1) ... [2019-09-09 05:33:09,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:33:09" (1/1) ... [2019-09-09 05:33:09,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:33:09" (1/1) ... [2019-09-09 05:33:09,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:33:09" (1/1) ... [2019-09-09 05:33:09,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-09 05:33:09,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-09 05:33:09,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-09 05:33:09,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-09 05:33:09,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:33:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-09 05:33:09,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-09 05:33:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-09 05:33:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-09 05:33:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-09 05:33:09,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-09 05:33:09,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-09 05:33:09,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-09 05:33:09,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-09 05:33:09,511 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-09 05:33:09,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-09 05:33:09,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-09 05:33:09,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-09 05:33:09,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-09 05:33:09,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-09 05:33:09,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-09 05:33:09,817 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-09 05:33:09,817 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-09-09 05:33:09,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 05:33:09 BoogieIcfgContainer [2019-09-09 05:33:09,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-09 05:33:09,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-09 05:33:09,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-09 05:33:09,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-09 05:33:09,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.09 05:33:08" (1/3) ... [2019-09-09 05:33:09,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53a9f87e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 05:33:09, skipping insertion in model container [2019-09-09 05:33:09,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:33:09" (2/3) ... [2019-09-09 05:33:09,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53a9f87e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 05:33:09, skipping insertion in model container [2019-09-09 05:33:09,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 05:33:09" (3/3) ... [2019-09-09 05:33:09,846 INFO L109 eAbstractionObserver]: Analyzing ICFG mbpr2.c [2019-09-09 05:33:09,860 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-09 05:33:09,873 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-09 05:33:09,894 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-09 05:33:09,928 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-09 05:33:09,928 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-09 05:33:09,928 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-09 05:33:09,928 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-09 05:33:09,929 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-09 05:33:09,929 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-09 05:33:09,929 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-09 05:33:09,929 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-09 05:33:09,943 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2019-09-09 05:33:09,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-09 05:33:09,954 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:33:09,955 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:33:09,957 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:33:09,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:33:09,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1027175342, now seen corresponding path program 1 times [2019-09-09 05:33:09,965 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:33:10,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:33:10,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:33:10,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:33:10,010 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:33:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:33:10,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:33:10,133 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:33:10,133 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-09 05:33:10,134 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:33:10,137 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-09 05:33:10,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-09 05:33:10,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:33:10,154 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2019-09-09 05:33:10,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:33:10,174 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2019-09-09 05:33:10,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-09 05:33:10,175 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-09-09 05:33:10,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:33:10,185 INFO L225 Difference]: With dead ends: 35 [2019-09-09 05:33:10,186 INFO L226 Difference]: Without dead ends: 29 [2019-09-09 05:33:10,188 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:33:10,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-09-09 05:33:10,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-09-09 05:33:10,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-09-09 05:33:10,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2019-09-09 05:33:10,231 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 18 [2019-09-09 05:33:10,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:33:10,232 INFO L475 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2019-09-09 05:33:10,232 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-09 05:33:10,232 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2019-09-09 05:33:10,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-09 05:33:10,233 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:33:10,234 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:33:10,234 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:33:10,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:33:10,235 INFO L82 PathProgramCache]: Analyzing trace with hash 2086094079, now seen corresponding path program 1 times [2019-09-09 05:33:10,235 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:33:10,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:33:10,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:33:10,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:33:10,236 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:33:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:33:10,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:33:10,414 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:33:10,415 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-09 05:33:10,415 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:33:10,417 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-09 05:33:10,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-09 05:33:10,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-09 05:33:10,418 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand 5 states. [2019-09-09 05:33:10,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:33:10,476 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2019-09-09 05:33:10,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-09 05:33:10,477 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2019-09-09 05:33:10,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:33:10,478 INFO L225 Difference]: With dead ends: 35 [2019-09-09 05:33:10,479 INFO L226 Difference]: Without dead ends: 35 [2019-09-09 05:33:10,480 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-09 05:33:10,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-09-09 05:33:10,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2019-09-09 05:33:10,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-09-09 05:33:10,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2019-09-09 05:33:10,488 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 18 [2019-09-09 05:33:10,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:33:10,489 INFO L475 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2019-09-09 05:33:10,489 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-09 05:33:10,489 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2019-09-09 05:33:10,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-09 05:33:10,490 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:33:10,490 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:33:10,490 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:33:10,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:33:10,491 INFO L82 PathProgramCache]: Analyzing trace with hash 2087941121, now seen corresponding path program 1 times [2019-09-09 05:33:10,491 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:33:10,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:33:10,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:33:10,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:33:10,493 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:33:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:33:10,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:33:10,562 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:33:10,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-09 05:33:10,563 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:33:10,563 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-09 05:33:10,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-09 05:33:10,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-09 05:33:10,564 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand 4 states. [2019-09-09 05:33:10,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:33:10,659 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2019-09-09 05:33:10,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-09 05:33:10,660 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-09-09 05:33:10,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:33:10,663 INFO L225 Difference]: With dead ends: 42 [2019-09-09 05:33:10,663 INFO L226 Difference]: Without dead ends: 42 [2019-09-09 05:33:10,664 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-09 05:33:10,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-09-09 05:33:10,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2019-09-09 05:33:10,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-09-09 05:33:10,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2019-09-09 05:33:10,671 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 18 [2019-09-09 05:33:10,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:33:10,671 INFO L475 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2019-09-09 05:33:10,671 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-09 05:33:10,671 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2019-09-09 05:33:10,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-09-09 05:33:10,672 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:33:10,672 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:33:10,673 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:33:10,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:33:10,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1576263499, now seen corresponding path program 1 times [2019-09-09 05:33:10,673 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:33:10,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:33:10,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:33:10,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:33:10,675 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:33:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:33:10,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-09 05:33:10,758 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:33:10,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-09 05:33:10,760 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:33:10,761 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-09 05:33:10,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-09 05:33:10,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 05:33:10,762 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 3 states. [2019-09-09 05:33:10,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:33:10,777 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2019-09-09 05:33:10,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-09 05:33:10,779 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-09-09 05:33:10,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:33:10,780 INFO L225 Difference]: With dead ends: 36 [2019-09-09 05:33:10,780 INFO L226 Difference]: Without dead ends: 36 [2019-09-09 05:33:10,781 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 05:33:10,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-09-09 05:33:10,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-09-09 05:33:10,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-09-09 05:33:10,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2019-09-09 05:33:10,793 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 26 [2019-09-09 05:33:10,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:33:10,794 INFO L475 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2019-09-09 05:33:10,794 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-09 05:33:10,794 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2019-09-09 05:33:10,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-09-09 05:33:10,797 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:33:10,797 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:33:10,798 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:33:10,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:33:10,799 INFO L82 PathProgramCache]: Analyzing trace with hash -2017639219, now seen corresponding path program 1 times [2019-09-09 05:33:10,799 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:33:10,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:33:10,800 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:33:10,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:33:10,801 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:33:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:33:11,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-09 05:33:11,649 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-09 05:33:11,649 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-09 05:33:11,650 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 27 with the following transitions: [2019-09-09 05:33:11,652 INFO L207 CegarAbsIntRunner]: [0], [1], [5], [8], [12], [18], [20], [23], [27], [29], [33], [39], [41], [46], [48], [50], [54], [62], [67], [82], [85], [87], [93], [94], [95], [97] [2019-09-09 05:33:11,690 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-09 05:33:11,690 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-09 05:33:11,791 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-09 05:33:11,794 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Performed 22 root evaluator evaluations with a maximum evaluation depth of 2. Performed 22 inverse root evaluator evaluations with a maximum inverse evaluation depth of 2. Never found a fixpoint. Largest state had 28 variables. [2019-09-09 05:33:11,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:33:11,799 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-09 05:33:11,867 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 96.67% of their original sizes. [2019-09-09 05:33:11,867 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-09 05:33:11,875 INFO L420 sIntCurrentIteration]: We unified 25 AI predicates to 25 [2019-09-09 05:33:11,876 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-09 05:33:11,877 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-09 05:33:11,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2019-09-09 05:33:11,877 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:33:11,878 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-09 05:33:11,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-09 05:33:11,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 05:33:11,878 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 3 states. [2019-09-09 05:33:11,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:33:11,882 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2019-09-09 05:33:11,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-09 05:33:11,882 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-09-09 05:33:11,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:33:11,883 INFO L225 Difference]: With dead ends: 7 [2019-09-09 05:33:11,883 INFO L226 Difference]: Without dead ends: 0 [2019-09-09 05:33:11,884 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 05:33:11,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-09 05:33:11,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-09 05:33:11,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-09 05:33:11,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-09 05:33:11,885 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2019-09-09 05:33:11,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:33:11,885 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-09 05:33:11,885 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-09 05:33:11,885 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-09 05:33:11,885 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-09 05:33:11,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.09 05:33:11 BoogieIcfgContainer [2019-09-09 05:33:11,891 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-09 05:33:11,895 INFO L168 Benchmark]: Toolchain (without parser) took 2932.07 ms. Allocated memory was 141.6 MB in the beginning and 230.7 MB in the end (delta: 89.1 MB). Free memory was 87.7 MB in the beginning and 152.5 MB in the end (delta: -64.8 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2019-09-09 05:33:11,896 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 141.6 MB. Free memory is still 107.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-09 05:33:11,899 INFO L168 Benchmark]: CACSL2BoogieTranslator took 434.61 ms. Allocated memory was 141.6 MB in the beginning and 202.4 MB in the end (delta: 60.8 MB). Free memory was 87.3 MB in the beginning and 180.6 MB in the end (delta: -93.3 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-09-09 05:33:11,901 INFO L168 Benchmark]: Boogie Preprocessor took 56.33 ms. Allocated memory is still 202.4 MB. Free memory was 180.6 MB in the beginning and 177.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2019-09-09 05:33:11,903 INFO L168 Benchmark]: RCFGBuilder took 365.36 ms. Allocated memory is still 202.4 MB. Free memory was 177.7 MB in the beginning and 161.0 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. [2019-09-09 05:33:11,905 INFO L168 Benchmark]: TraceAbstraction took 2061.18 ms. Allocated memory was 202.4 MB in the beginning and 230.7 MB in the end (delta: 28.3 MB). Free memory was 161.0 MB in the beginning and 152.5 MB in the end (delta: 8.5 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. [2019-09-09 05:33:11,916 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 141.6 MB. Free memory is still 107.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 434.61 ms. Allocated memory was 141.6 MB in the beginning and 202.4 MB in the end (delta: 60.8 MB). Free memory was 87.3 MB in the beginning and 180.6 MB in the end (delta: -93.3 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 56.33 ms. Allocated memory is still 202.4 MB. Free memory was 180.6 MB in the beginning and 177.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 365.36 ms. Allocated memory is still 202.4 MB. Free memory was 177.7 MB in the beginning and 161.0 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2061.18 ms. Allocated memory was 202.4 MB in the beginning and 230.7 MB in the end (delta: 28.3 MB). Free memory was 161.0 MB in the beginning and 152.5 MB in the end (delta: 8.5 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 35 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 129 SDtfs, 63 SDslu, 114 SDs, 0 SdLazy, 53 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9533333333333333 AbsIntWeakeningRatio, 0.88 AbsIntAvgWeakeningVarsNumRemoved, 0.64 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 10139 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 3/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...