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/bitvector/jain_2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-09 05:37:36,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-09 05:37:36,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-09 05:37:36,335 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-09 05:37:36,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-09 05:37:36,337 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-09 05:37:36,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-09 05:37:36,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-09 05:37:36,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-09 05:37:36,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-09 05:37:36,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-09 05:37:36,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-09 05:37:36,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-09 05:37:36,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-09 05:37:36,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-09 05:37:36,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-09 05:37:36,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-09 05:37:36,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-09 05:37:36,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-09 05:37:36,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-09 05:37:36,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-09 05:37:36,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-09 05:37:36,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-09 05:37:36,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-09 05:37:36,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-09 05:37:36,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-09 05:37:36,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-09 05:37:36,363 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-09 05:37:36,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-09 05:37:36,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-09 05:37:36,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-09 05:37:36,365 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-09 05:37:36,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-09 05:37:36,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-09 05:37:36,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-09 05:37:36,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-09 05:37:36,368 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 05:37:36,382 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-09 05:37:36,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-09 05:37:36,383 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-09 05:37:36,383 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-09 05:37:36,383 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-09 05:37:36,384 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-09 05:37:36,384 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-09 05:37:36,384 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-09 05:37:36,384 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-09 05:37:36,384 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-09 05:37:36,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-09 05:37:36,385 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-09 05:37:36,385 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-09 05:37:36,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-09 05:37:36,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-09 05:37:36,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-09 05:37:36,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-09 05:37:36,386 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-09 05:37:36,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-09 05:37:36,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-09 05:37:36,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-09 05:37:36,387 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-09 05:37:36,387 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-09 05:37:36,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-09 05:37:36,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-09 05:37:36,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-09 05:37:36,388 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-09 05:37:36,388 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-09 05:37:36,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-09 05:37:36,389 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-09 05:37:36,416 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-09 05:37:36,429 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-09 05:37:36,432 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-09 05:37:36,434 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-09 05:37:36,434 INFO L275 PluginConnector]: CDTParser initialized [2019-09-09 05:37:36,435 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/jain_2-1.c [2019-09-09 05:37:36,496 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2debfe66b/7d006b3563ed4890b811865cd72e4682/FLAGf6b104af8 [2019-09-09 05:37:36,901 INFO L306 CDTParser]: Found 1 translation units. [2019-09-09 05:37:36,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_2-1.c [2019-09-09 05:37:36,911 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2debfe66b/7d006b3563ed4890b811865cd72e4682/FLAGf6b104af8 [2019-09-09 05:37:37,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2debfe66b/7d006b3563ed4890b811865cd72e4682 [2019-09-09 05:37:37,327 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-09 05:37:37,328 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-09 05:37:37,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-09 05:37:37,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-09 05:37:37,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-09 05:37:37,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 05:37:37" (1/1) ... [2019-09-09 05:37:37,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1af94a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:37:37, skipping insertion in model container [2019-09-09 05:37:37,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 05:37:37" (1/1) ... [2019-09-09 05:37:37,344 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-09 05:37:37,361 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-09 05:37:37,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 05:37:37,540 INFO L188 MainTranslator]: Completed pre-run [2019-09-09 05:37:37,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 05:37:37,564 INFO L192 MainTranslator]: Completed translation [2019-09-09 05:37:37,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:37:37 WrapperNode [2019-09-09 05:37:37,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-09 05:37:37,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-09 05:37:37,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-09 05:37:37,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-09 05:37:37,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:37:37" (1/1) ... [2019-09-09 05:37:37,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:37:37" (1/1) ... [2019-09-09 05:37:37,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:37:37" (1/1) ... [2019-09-09 05:37:37,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:37:37" (1/1) ... [2019-09-09 05:37:37,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:37:37" (1/1) ... [2019-09-09 05:37:37,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:37:37" (1/1) ... [2019-09-09 05:37:37,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:37:37" (1/1) ... [2019-09-09 05:37:37,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-09 05:37:37,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-09 05:37:37,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-09 05:37:37,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-09 05:37:37,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:37:37" (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 05:37:37,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-09 05:37:37,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-09 05:37:37,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-09 05:37:37,723 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-09 05:37:37,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-09 05:37:37,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-09 05:37:37,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-09 05:37:37,724 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-09 05:37:37,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-09 05:37:37,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-09 05:37:37,873 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-09 05:37:37,873 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-09 05:37:37,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 05:37:37 BoogieIcfgContainer [2019-09-09 05:37:37,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-09 05:37:37,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-09 05:37:37,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-09 05:37:37,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-09 05:37:37,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.09 05:37:37" (1/3) ... [2019-09-09 05:37:37,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4541f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 05:37:37, skipping insertion in model container [2019-09-09 05:37:37,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:37:37" (2/3) ... [2019-09-09 05:37:37,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4541f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 05:37:37, skipping insertion in model container [2019-09-09 05:37:37,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 05:37:37" (3/3) ... [2019-09-09 05:37:37,882 INFO L109 eAbstractionObserver]: Analyzing ICFG jain_2-1.c [2019-09-09 05:37:37,892 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-09 05:37:37,899 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-09 05:37:37,916 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-09 05:37:37,943 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-09 05:37:37,943 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-09 05:37:37,943 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-09 05:37:37,944 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-09 05:37:37,944 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-09 05:37:37,944 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-09 05:37:37,944 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-09 05:37:37,944 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-09 05:37:37,959 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-09-09 05:37:37,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-09 05:37:37,968 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:37:37,969 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:37:37,972 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:37:37,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:37:37,977 INFO L82 PathProgramCache]: Analyzing trace with hash -13144129, now seen corresponding path program 1 times [2019-09-09 05:37:37,980 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:37:38,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:37:38,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:37:38,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:37:38,018 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:37:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:37:38,274 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 05:37:38,277 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:37:38,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-09 05:37:38,277 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:37:38,282 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-09 05:37:38,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-09 05:37:38,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-09-09 05:37:38,295 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 6 states. [2019-09-09 05:37:40,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:37:40,410 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2019-09-09 05:37:40,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-09 05:37:40,412 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-09-09 05:37:40,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:37:40,420 INFO L225 Difference]: With dead ends: 20 [2019-09-09 05:37:40,420 INFO L226 Difference]: Without dead ends: 20 [2019-09-09 05:37:40,424 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-09-09 05:37:40,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-09-09 05:37:40,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-09-09 05:37:40,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-09-09 05:37:40,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-09-09 05:37:40,459 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2019-09-09 05:37:40,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:37:40,460 INFO L475 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-09-09 05:37:40,460 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-09 05:37:40,460 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-09-09 05:37:40,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-09 05:37:40,461 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:37:40,461 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:37:40,462 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:37:40,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:37:40,462 INFO L82 PathProgramCache]: Analyzing trace with hash 327764987, now seen corresponding path program 1 times [2019-09-09 05:37:40,462 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:37:40,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:37:40,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:37:40,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:37:40,464 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:37:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:37:40,579 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:37:40,580 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-09 05:37:40,580 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-09 05:37:40,581 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2019-09-09 05:37:40,583 INFO L207 CegarAbsIntRunner]: [0], [4], [13], [20], [23], [25], [28], [30], [31], [32], [33], [35], [36] [2019-09-09 05:37:40,618 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-09 05:37:40,618 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-09 05:37:40,689 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-09 05:37:40,725 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-09 05:37:40,728 INFO L272 AbstractInterpreter]: Visited 13 different actions 14 times. Merged at 1 different actions 1 times. Never widened. Performed 17 root evaluator evaluations with a maximum evaluation depth of 9. Performed 17 inverse root evaluator evaluations with a maximum inverse evaluation depth of 9. Found 1 fixpoints after 1 different actions. Largest state had 4 variables. [2019-09-09 05:37:40,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:37:40,732 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-09 05:37:40,732 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-09 05:37:40,732 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-09 05:37:40,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:37:40,746 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-09 05:37:40,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:37:40,773 WARN L254 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 23 conjunts are in the unsatisfiable core [2019-09-09 05:37:40,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-09 05:37:40,913 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-09 05:37:40,951 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-09 05:37:40,951 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-09 05:37:47,331 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-09 05:37:49,347 WARN L860 $PredicateComparison]: unable to prove that (or (= 1 (mod (+ c_main_~x~0 c_main_~y~0) 4294967296)) (forall ((|main_#t~nondet0| Int) (|main_#t~nondet1| Int)) (let ((.cse0 (+ (* 2 |main_#t~nondet0|) c_main_~x~0 c_main_~y~0 (* 2 |main_#t~nondet1|)))) (let ((.cse1 (* 4294967296 (div .cse0 4294967296)))) (or (<= .cse0 .cse1) (<= (+ .cse1 2) .cse0)))))) is different from true [2019-09-09 05:37:49,351 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-09 05:37:51,384 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-09 05:37:53,442 WARN L860 $PredicateComparison]: unable to prove that (forall ((|main_#t~nondet0| Int) (|main_#t~nondet1| Int) (v_subst_4 Int) (v_subst_3 Int)) (let ((.cse2 (* 2 |main_#t~nondet0|)) (.cse3 (* 2 |main_#t~nondet1|))) (let ((.cse1 (+ .cse2 c_main_~x~0 c_main_~y~0 .cse3 (* 2 v_subst_4) (* 2 v_subst_3)))) (let ((.cse0 (* 4294967296 (div .cse1 4294967296)))) (or (<= (+ .cse0 2) .cse1) (= 1 (mod (+ .cse2 c_main_~x~0 c_main_~y~0 .cse3) 4294967296)) (<= .cse1 .cse0)))))) is different from true [2019-09-09 05:37:53,460 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2019-09-09 05:37:53,467 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-09 05:37:53,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 9] total 16 [2019-09-09 05:37:53,467 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-09 05:37:53,468 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-09 05:37:53,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-09 05:37:53,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=139, Unknown=4, NotChecked=50, Total=240 [2019-09-09 05:37:53,469 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 12 states. [2019-09-09 05:37:53,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:37:53,547 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2019-09-09 05:37:53,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-09 05:37:53,549 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2019-09-09 05:37:53,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:37:53,550 INFO L225 Difference]: With dead ends: 17 [2019-09-09 05:37:53,550 INFO L226 Difference]: Without dead ends: 0 [2019-09-09 05:37:53,552 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=55, Invalid=159, Unknown=4, NotChecked=54, Total=272 [2019-09-09 05:37:53,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-09 05:37:53,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-09 05:37:53,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-09 05:37:53,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-09 05:37:53,555 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-09-09 05:37:53,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:37:53,555 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-09 05:37:53,555 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-09 05:37:53,555 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-09 05:37:53,556 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-09 05:37:53,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.09 05:37:53 BoogieIcfgContainer [2019-09-09 05:37:53,562 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-09 05:37:53,567 INFO L168 Benchmark]: Toolchain (without parser) took 16236.83 ms. Allocated memory was 134.7 MB in the beginning and 201.9 MB in the end (delta: 67.1 MB). Free memory was 90.7 MB in the beginning and 86.5 MB in the end (delta: 4.3 MB). Peak memory consumption was 71.4 MB. Max. memory is 7.1 GB. [2019-09-09 05:37:53,569 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 134.7 MB. Free memory was 109.1 MB in the beginning and 108.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-09 05:37:53,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.82 ms. Allocated memory is still 134.7 MB. Free memory was 90.5 MB in the beginning and 81.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-09-09 05:37:53,573 INFO L168 Benchmark]: Boogie Preprocessor took 109.04 ms. Allocated memory was 134.7 MB in the beginning and 201.9 MB in the end (delta: 67.1 MB). Free memory was 81.1 MB in the beginning and 178.9 MB in the end (delta: -97.8 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. [2019-09-09 05:37:53,581 INFO L168 Benchmark]: RCFGBuilder took 200.72 ms. Allocated memory is still 201.9 MB. Free memory was 178.9 MB in the beginning and 168.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-09-09 05:37:53,582 INFO L168 Benchmark]: TraceAbstraction took 15687.63 ms. Allocated memory is still 201.9 MB. Free memory was 168.0 MB in the beginning and 86.5 MB in the end (delta: 81.6 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. [2019-09-09 05:37:53,589 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 134.7 MB. Free memory was 109.1 MB in the beginning and 108.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 234.82 ms. Allocated memory is still 134.7 MB. Free memory was 90.5 MB in the beginning and 81.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.04 ms. Allocated memory was 134.7 MB in the beginning and 201.9 MB in the end (delta: 67.1 MB). Free memory was 81.1 MB in the beginning and 178.9 MB in the end (delta: -97.8 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 200.72 ms. Allocated memory is still 201.9 MB. Free memory was 178.9 MB in the beginning and 168.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15687.63 ms. Allocated memory is still 201.9 MB. Free memory was 168.0 MB in the beginning and 86.5 MB in the end (delta: 81.6 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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, 18 locations, 1 error locations. SAFE Result, 15.6s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 13 SDslu, 81 SDs, 0 SdLazy, 41 SolverSat, 6 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 10.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 12.9s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 3 QuantifiedInterpolants, 6501 SizeOfPredicates, 7 NumberOfNonLiveVariables, 40 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 5/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...