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/loops/linear_sea.ch.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 20:36:39,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 20:36:39,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 20:36:39,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-03 20:36:39,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 20:36:39,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 20:36:39,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 20:36:39,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 20:36:39,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 20:36:39,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 20:36:39,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 20:36:39,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 20:36:39,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 20:36:39,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 20:36:39,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 20:36:39,315 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 20:36:39,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-03 20:36:39,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-03 20:36:39,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-03 20:36:39,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-03 20:36:39,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-03 20:36:39,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-03 20:36:39,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-03 20:36:39,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-03 20:36:39,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-03 20:36:39,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 20:36:39,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 20:36:39,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 20:36:39,327 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 [2019-09-03 20:36:39,343 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 20:36:39,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 20:36:39,344 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-03 20:36:39,344 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-03 20:36:39,345 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-03 20:36:39,345 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-03 20:36:39,345 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-03 20:36:39,345 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-03 20:36:39,346 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-03 20:36:39,346 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-03 20:36:39,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 20:36:39,347 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 20:36:39,347 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 20:36:39,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 20:36:39,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 20:36:39,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 20:36:39,348 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 20:36:39,348 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 20:36:39,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 20:36:39,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 20:36:39,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 20:36:39,349 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-03 20:36:39,349 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 20:36:39,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 20:36:39,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 20:36:39,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 20:36:39,350 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-03 20:36:39,351 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 20:36:39,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 20:36:39,351 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-03 20:36:39,381 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 20:36:39,394 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 20:36:39,398 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 20:36:39,400 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 20:36:39,400 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 20:36:39,401 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/linear_sea.ch.c [2019-09-03 20:36:39,464 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae5c4ee80/09874b35c28044399995e9b6d91906bf/FLAG88cd19bb0 [2019-09-03 20:36:39,901 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 20:36:39,901 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/linear_sea.ch.c [2019-09-03 20:36:39,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae5c4ee80/09874b35c28044399995e9b6d91906bf/FLAG88cd19bb0 [2019-09-03 20:36:40,240 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae5c4ee80/09874b35c28044399995e9b6d91906bf [2019-09-03 20:36:40,249 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 20:36:40,250 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 20:36:40,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 20:36:40,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 20:36:40,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 20:36:40,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 08:36:40" (1/1) ... [2019-09-03 20:36:40,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5488fcf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:40, skipping insertion in model container [2019-09-03 20:36:40,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 08:36:40" (1/1) ... [2019-09-03 20:36:40,267 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 20:36:40,285 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 20:36:40,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 20:36:40,518 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 20:36:40,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 20:36:40,557 INFO L192 MainTranslator]: Completed translation [2019-09-03 20:36:40,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:40 WrapperNode [2019-09-03 20:36:40,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 20:36:40,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 20:36:40,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 20:36:40,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 20:36:40,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:40" (1/1) ... [2019-09-03 20:36:40,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:40" (1/1) ... [2019-09-03 20:36:40,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:40" (1/1) ... [2019-09-03 20:36:40,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:40" (1/1) ... [2019-09-03 20:36:40,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:40" (1/1) ... [2019-09-03 20:36:40,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:40" (1/1) ... [2019-09-03 20:36:40,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:40" (1/1) ... [2019-09-03 20:36:40,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 20:36:40,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 20:36:40,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 20:36:40,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 20:36:40,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:40" (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 [2019-09-03 20:36:40,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 20:36:40,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 20:36:40,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 20:36:40,769 INFO L138 BoogieDeclarations]: Found implementation of procedure linear_search [2019-09-03 20:36:40,769 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 20:36:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 20:36:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-03 20:36:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 20:36:40,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-03 20:36:40,771 INFO L130 BoogieDeclarations]: Found specification of procedure linear_search [2019-09-03 20:36:40,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-03 20:36:40,772 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 20:36:40,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-03 20:36:40,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-03 20:36:40,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 20:36:40,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 20:36:40,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-03 20:36:41,015 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 20:36:41,016 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-03 20:36:41,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 08:36:41 BoogieIcfgContainer [2019-09-03 20:36:41,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 20:36:41,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-03 20:36:41,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-03 20:36:41,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-03 20:36:41,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.09 08:36:40" (1/3) ... [2019-09-03 20:36:41,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@716906b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.09 08:36:41, skipping insertion in model container [2019-09-03 20:36:41,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:40" (2/3) ... [2019-09-03 20:36:41,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@716906b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.09 08:36:41, skipping insertion in model container [2019-09-03 20:36:41,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 08:36:41" (3/3) ... [2019-09-03 20:36:41,024 INFO L109 eAbstractionObserver]: Analyzing ICFG linear_sea.ch.c [2019-09-03 20:36:41,044 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-03 20:36:41,058 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-03 20:36:41,111 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-03 20:36:41,146 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-03 20:36:41,147 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-03 20:36:41,147 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-03 20:36:41,147 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-03 20:36:41,147 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-03 20:36:41,147 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-03 20:36:41,148 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-03 20:36:41,148 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-03 20:36:41,166 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-09-03 20:36:41,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-03 20:36:41,181 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 20:36:41,182 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 20:36:41,184 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 20:36:41,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 20:36:41,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1860043698, now seen corresponding path program 1 times [2019-09-03 20:36:41,191 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-03 20:36:41,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:36:41,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 20:36:41,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:36:41,230 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-03 20:36:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 20:36:41,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 20:36:41,385 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-03 20:36:41,386 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-03 20:36:41,386 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-03 20:36:41,390 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-03 20:36:41,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-03 20:36:41,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-03 20:36:41,407 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-09-03 20:36:41,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 20:36:41,425 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2019-09-03 20:36:41,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-03 20:36:41,427 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-09-03 20:36:41,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 20:36:41,436 INFO L225 Difference]: With dead ends: 28 [2019-09-03 20:36:41,437 INFO L226 Difference]: Without dead ends: 21 [2019-09-03 20:36:41,439 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 [2019-09-03 20:36:41,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-09-03 20:36:41,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-09-03 20:36:41,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-09-03 20:36:41,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2019-09-03 20:36:41,480 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 18 [2019-09-03 20:36:41,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 20:36:41,481 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2019-09-03 20:36:41,481 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-03 20:36:41,481 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2019-09-03 20:36:41,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-03 20:36:41,482 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 20:36:41,483 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] [2019-09-03 20:36:41,483 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 20:36:41,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 20:36:41,484 INFO L82 PathProgramCache]: Analyzing trace with hash 916881159, now seen corresponding path program 1 times [2019-09-03 20:36:41,484 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-03 20:36:41,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:36:41,485 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 20:36:41,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:36:41,485 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-03 20:36:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 20:36:41,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 20:36:41,679 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-03 20:36:41,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-03 20:36:41,680 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-03 20:36:41,683 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-03 20:36:41,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-03 20:36:41,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-03 20:36:41,687 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 6 states. [2019-09-03 20:36:41,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 20:36:41,757 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-09-03 20:36:41,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-03 20:36:41,758 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-09-03 20:36:41,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 20:36:41,760 INFO L225 Difference]: With dead ends: 27 [2019-09-03 20:36:41,760 INFO L226 Difference]: Without dead ends: 21 [2019-09-03 20:36:41,762 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-03 20:36:41,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-09-03 20:36:41,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-09-03 20:36:41,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-09-03 20:36:41,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-09-03 20:36:41,770 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 20 [2019-09-03 20:36:41,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 20:36:41,771 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-09-03 20:36:41,771 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-03 20:36:41,772 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-09-03 20:36:41,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-03 20:36:41,773 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 20:36:41,774 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] [2019-09-03 20:36:41,774 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 20:36:41,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 20:36:41,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1635275802, now seen corresponding path program 1 times [2019-09-03 20:36:41,775 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-03 20:36:41,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:36:41,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 20:36:41,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:36:41,779 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-03 20:36:41,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 20:36:42,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 20:36:42,005 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-03 20:36:42,005 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-03 20:36:42,006 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-03 20:36:42,006 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-03 20:36:42,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-03 20:36:42,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-03 20:36:42,007 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 5 states. [2019-09-03 20:36:42,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 20:36:42,080 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2019-09-03 20:36:42,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-03 20:36:42,081 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-09-03 20:36:42,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 20:36:42,082 INFO L225 Difference]: With dead ends: 25 [2019-09-03 20:36:42,082 INFO L226 Difference]: Without dead ends: 24 [2019-09-03 20:36:42,083 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-03 20:36:42,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-09-03 20:36:42,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-09-03 20:36:42,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-09-03 20:36:42,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2019-09-03 20:36:42,088 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 20 [2019-09-03 20:36:42,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 20:36:42,089 INFO L475 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2019-09-03 20:36:42,089 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-03 20:36:42,089 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2019-09-03 20:36:42,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-09-03 20:36:42,090 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 20:36:42,090 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 20:36:42,090 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 20:36:42,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 20:36:42,091 INFO L82 PathProgramCache]: Analyzing trace with hash 636491705, now seen corresponding path program 1 times [2019-09-03 20:36:42,091 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-03 20:36:42,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:36:42,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 20:36:42,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:36:42,092 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-03 20:36:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 20:36:42,377 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-03 20:36:42,377 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-03 20:36:42,377 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-03 20:36:42,379 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2019-09-03 20:36:42,382 INFO L207 CegarAbsIntRunner]: [0], [5], [8], [14], [16], [23], [24], [25], [26], [30], [33], [35], [42], [45], [47], [53], [54], [55], [57], [58], [59] [2019-09-03 20:36:42,428 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-03 20:36:42,428 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-03 20:36:42,542 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-03 20:36:42,555 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-03 20:36:42,556 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Performed 23 root evaluator evaluations with a maximum evaluation depth of 9. Performed 23 inverse root evaluator evaluations with a maximum inverse evaluation depth of 9. Never found a fixpoint. Largest state had 22 variables. [2019-09-03 20:36:42,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 20:36:42,561 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-03 20:36:42,605 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 77.5% of their original sizes. [2019-09-03 20:36:42,605 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-03 20:36:42,617 INFO L420 sIntCurrentIteration]: We unified 22 AI predicates to 22 [2019-09-03 20:36:42,618 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-03 20:36:42,619 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-03 20:36:42,619 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2019-09-03 20:36:42,619 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-03 20:36:42,619 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-03 20:36:42,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-03 20:36:42,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-03 20:36:42,620 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 4 states. [2019-09-03 20:36:42,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 20:36:42,634 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2019-09-03 20:36:42,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-03 20:36:42,634 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2019-09-03 20:36:42,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 20:36:42,635 INFO L225 Difference]: With dead ends: 7 [2019-09-03 20:36:42,635 INFO L226 Difference]: Without dead ends: 0 [2019-09-03 20:36:42,636 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-03 20:36:42,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-03 20:36:42,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-03 20:36:42,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-03 20:36:42,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-03 20:36:42,637 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2019-09-03 20:36:42,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 20:36:42,637 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-03 20:36:42,637 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-03 20:36:42,638 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-03 20:36:42,638 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-03 20:36:42,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.09 08:36:42 BoogieIcfgContainer [2019-09-03 20:36:42,643 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-03 20:36:42,646 INFO L168 Benchmark]: Toolchain (without parser) took 2394.81 ms. Allocated memory was 137.9 MB in the beginning and 199.2 MB in the end (delta: 61.3 MB). Free memory was 85.6 MB in the beginning and 78.6 MB in the end (delta: 7.0 MB). Peak memory consumption was 68.3 MB. Max. memory is 7.1 GB. [2019-09-03 20:36:42,647 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 104.0 MB in the beginning and 103.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 20:36:42,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.04 ms. Allocated memory is still 137.9 MB. Free memory was 85.4 MB in the beginning and 75.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-09-03 20:36:42,649 INFO L168 Benchmark]: Boogie Preprocessor took 147.48 ms. Allocated memory was 137.9 MB in the beginning and 199.2 MB in the end (delta: 61.3 MB). Free memory was 75.5 MB in the beginning and 175.9 MB in the end (delta: -100.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-09-03 20:36:42,650 INFO L168 Benchmark]: RCFGBuilder took 310.71 ms. Allocated memory is still 199.2 MB. Free memory was 175.9 MB in the beginning and 160.9 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. [2019-09-03 20:36:42,651 INFO L168 Benchmark]: TraceAbstraction took 1625.41 ms. Allocated memory is still 199.2 MB. Free memory was 160.3 MB in the beginning and 78.6 MB in the end (delta: 81.6 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. [2019-09-03 20:36:42,655 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 104.0 MB in the beginning and 103.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 307.04 ms. Allocated memory is still 137.9 MB. Free memory was 85.4 MB in the beginning and 75.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 147.48 ms. Allocated memory was 137.9 MB in the beginning and 199.2 MB in the end (delta: 61.3 MB). Free memory was 75.5 MB in the beginning and 175.9 MB in the end (delta: -100.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 310.71 ms. Allocated memory is still 199.2 MB. Free memory was 175.9 MB in the beginning and 160.9 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1625.41 ms. Allocated memory is still 199.2 MB. Free memory was 160.3 MB in the beginning and 78.6 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 5 procedures, 28 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 76 SDtfs, 25 SDslu, 110 SDs, 0 SdLazy, 35 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, 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, 0.9715909090909091 AbsIntWeakeningRatio, 1.3181818181818181 AbsIntAvgWeakeningVarsNumRemoved, 1.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 5863 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 1/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...