java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-acceleration/underapprox_true-unreach-call2_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 23:36:33,847 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 23:36:33,849 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 23:36:33,861 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 23:36:33,861 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 23:36:33,862 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 23:36:33,863 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 23:36:33,865 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 23:36:33,867 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 23:36:33,867 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 23:36:33,868 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 23:36:33,869 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 23:36:33,869 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 23:36:33,870 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 23:36:33,872 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 23:36:33,872 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 23:36:33,873 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 23:36:33,875 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 23:36:33,877 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 23:36:33,879 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 23:36:33,880 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 23:36:33,881 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 23:36:33,883 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-23 23:36:33,891 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-23 23:36:33,906 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 23:36:33,906 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 23:36:33,907 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 23:36:33,907 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-23 23:36:33,908 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-23 23:36:33,908 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-23 23:36:33,908 INFO L133 SettingsManager]: * Use SBE=true [2018-07-23 23:36:33,909 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 23:36:33,909 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 23:36:33,909 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 23:36:33,909 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 23:36:33,909 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 23:36:33,909 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 23:36:33,910 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 23:36:33,910 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 23:36:33,910 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 23:36:33,910 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 23:36:33,910 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 23:36:33,911 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 23:36:33,911 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 23:36:33,911 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 23:36:33,911 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 23:36:33,912 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 23:36:33,912 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-23 23:36:33,912 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 23:36:33,912 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 23:36:33,912 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 23:36:33,912 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 23:36:33,954 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 23:36:33,966 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 23:36:33,969 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 23:36:33,971 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 23:36:33,971 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 23:36:33,972 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/underapprox_true-unreach-call2_true-termination.i [2018-07-23 23:36:34,298 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec83729ca/48e4641075d34989be8eaea0003b5dcd/FLAGd31e0d251 [2018-07-23 23:36:34,470 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 23:36:34,471 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/underapprox_true-unreach-call2_true-termination.i [2018-07-23 23:36:34,478 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec83729ca/48e4641075d34989be8eaea0003b5dcd/FLAGd31e0d251 [2018-07-23 23:36:34,502 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec83729ca/48e4641075d34989be8eaea0003b5dcd [2018-07-23 23:36:34,515 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 23:36:34,519 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 23:36:34,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 23:36:34,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 23:36:34,531 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 23:36:34,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 11:36:34" (1/1) ... [2018-07-23 23:36:34,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41c53c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:36:34, skipping insertion in model container [2018-07-23 23:36:34,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 11:36:34" (1/1) ... [2018-07-23 23:36:34,732 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 23:36:34,771 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 23:36:34,789 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 23:36:34,794 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 23:36:34,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:36:34 WrapperNode [2018-07-23 23:36:34,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 23:36:34,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 23:36:34,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 23:36:34,813 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 23:36:34,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:36:34" (1/1) ... [2018-07-23 23:36:34,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:36:34" (1/1) ... [2018-07-23 23:36:34,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 23:36:34,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 23:36:34,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 23:36:34,847 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 23:36:34,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:36:34" (1/1) ... [2018-07-23 23:36:34,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:36:34" (1/1) ... [2018-07-23 23:36:34,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:36:34" (1/1) ... [2018-07-23 23:36:34,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:36:34" (1/1) ... [2018-07-23 23:36:34,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:36:34" (1/1) ... [2018-07-23 23:36:34,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:36:34" (1/1) ... [2018-07-23 23:36:34,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:36:34" (1/1) ... [2018-07-23 23:36:34,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 23:36:34,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 23:36:34,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 23:36:34,868 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 23:36:34,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:36:34" (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 [2018-07-23 23:36:34,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 23:36:34,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 23:36:35,264 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 23:36:35,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 11:36:35 BoogieIcfgContainer [2018-07-23 23:36:35,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 23:36:35,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 23:36:35,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 23:36:35,270 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 23:36:35,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 11:36:34" (1/3) ... [2018-07-23 23:36:35,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea848c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 11:36:35, skipping insertion in model container [2018-07-23 23:36:35,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:36:34" (2/3) ... [2018-07-23 23:36:35,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea848c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 11:36:35, skipping insertion in model container [2018-07-23 23:36:35,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 11:36:35" (3/3) ... [2018-07-23 23:36:35,274 INFO L112 eAbstractionObserver]: Analyzing ICFG underapprox_true-unreach-call2_true-termination.i [2018-07-23 23:36:35,283 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 23:36:35,290 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 23:36:35,337 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 23:36:35,338 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 23:36:35,338 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 23:36:35,338 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 23:36:35,339 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 23:36:35,339 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 23:36:35,339 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 23:36:35,339 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 23:36:35,339 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 23:36:35,353 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-07-23 23:36:35,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 23:36:35,359 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:36:35,360 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-23 23:36:35,361 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:36:35,366 INFO L82 PathProgramCache]: Analyzing trace with hash 889783783, now seen corresponding path program 1 times [2018-07-23 23:36:35,368 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:36:35,368 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:36:35,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:36:35,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:36:35,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:36:35,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:36:35,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:36:35,474 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:36:35,474 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-23 23:36:35,478 INFO L450 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-07-23 23:36:35,493 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-07-23 23:36:35,494 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-23 23:36:35,496 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2018-07-23 23:36:35,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:36:35,512 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-07-23 23:36:35,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-23 23:36:35,513 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2018-07-23 23:36:35,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:36:35,531 INFO L225 Difference]: With dead ends: 20 [2018-07-23 23:36:35,532 INFO L226 Difference]: Without dead ends: 8 [2018-07-23 23:36:35,536 INFO L573 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 [2018-07-23 23:36:35,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-23 23:36:35,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-07-23 23:36:35,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-07-23 23:36:35,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-07-23 23:36:35,574 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2018-07-23 23:36:35,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:36:35,574 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-07-23 23:36:35,574 INFO L472 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-07-23 23:36:35,575 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-07-23 23:36:35,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-23 23:36:35,575 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:36:35,575 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:36:35,576 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:36:35,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1805923659, now seen corresponding path program 1 times [2018-07-23 23:36:35,577 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:36:35,577 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:36:35,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:36:35,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:36:35,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:36:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:36:35,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:36:35,692 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:36:35,693 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 23:36:35,695 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 23:36:35,696 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 23:36:35,696 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 23:36:35,696 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 3 states. [2018-07-23 23:36:35,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:36:35,779 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-07-23 23:36:35,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 23:36:35,780 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-07-23 23:36:35,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:36:35,781 INFO L225 Difference]: With dead ends: 14 [2018-07-23 23:36:35,781 INFO L226 Difference]: Without dead ends: 10 [2018-07-23 23:36:35,782 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 23:36:35,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-07-23 23:36:35,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-07-23 23:36:35,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-07-23 23:36:35,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-07-23 23:36:35,786 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2018-07-23 23:36:35,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:36:35,786 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-07-23 23:36:35,786 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 23:36:35,786 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-07-23 23:36:35,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-07-23 23:36:35,787 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:36:35,787 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:36:35,787 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:36:35,787 INFO L82 PathProgramCache]: Analyzing trace with hash 373599493, now seen corresponding path program 1 times [2018-07-23 23:36:35,788 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:36:35,788 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:36:35,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:36:35,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:36:35,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:36:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:36:35,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:36:35,953 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:36:35,953 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP 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 [2018-07-23 23:36:35,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:36:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:36:35,996 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:36:36,030 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:36:36,050 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:36:36,051 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-07-23 23:36:36,051 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 23:36:36,051 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 23:36:36,051 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 23:36:36,052 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 4 states. [2018-07-23 23:36:36,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:36:36,084 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-07-23 23:36:36,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 23:36:36,087 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-07-23 23:36:36,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:36:36,088 INFO L225 Difference]: With dead ends: 16 [2018-07-23 23:36:36,088 INFO L226 Difference]: Without dead ends: 12 [2018-07-23 23:36:36,088 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 23:36:36,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-07-23 23:36:36,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-07-23 23:36:36,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-07-23 23:36:36,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-07-23 23:36:36,092 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2018-07-23 23:36:36,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:36:36,092 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-07-23 23:36:36,092 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 23:36:36,093 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-07-23 23:36:36,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-07-23 23:36:36,093 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:36:36,093 INFO L353 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2018-07-23 23:36:36,094 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:36:36,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1700389313, now seen corresponding path program 2 times [2018-07-23 23:36:36,094 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:36:36,094 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:36:36,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:36:36,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:36:36,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:36:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:36:36,230 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:36:36,231 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:36:36,231 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:36:36,247 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-23 23:36:36,275 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-23 23:36:36,277 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:36:36,278 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:36:36,307 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:36:36,336 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:36:36,336 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-07-23 23:36:36,337 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 23:36:36,337 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 23:36:36,338 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 23:36:36,338 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 5 states. [2018-07-23 23:36:36,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:36:36,449 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-07-23 23:36:36,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 23:36:36,449 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-07-23 23:36:36,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:36:36,450 INFO L225 Difference]: With dead ends: 18 [2018-07-23 23:36:36,450 INFO L226 Difference]: Without dead ends: 14 [2018-07-23 23:36:36,451 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 23:36:36,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-07-23 23:36:36,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-07-23 23:36:36,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-07-23 23:36:36,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-07-23 23:36:36,454 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-07-23 23:36:36,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:36:36,454 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-07-23 23:36:36,454 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 23:36:36,455 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-07-23 23:36:36,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-07-23 23:36:36,455 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:36:36,455 INFO L353 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1] [2018-07-23 23:36:36,455 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:36:36,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1938806535, now seen corresponding path program 3 times [2018-07-23 23:36:36,456 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:36:36,456 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:36:36,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:36:36,457 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 23:36:36,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:36:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:36:36,751 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:36:36,751 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:36:36,752 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 23:36:36,759 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-07-23 23:36:36,767 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-07-23 23:36:36,767 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:36:36,769 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:36:36,891 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-07-23 23:36:36,912 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 23:36:36,912 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2018-07-23 23:36:36,913 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-23 23:36:36,913 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-23 23:36:36,914 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-07-23 23:36:36,914 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 9 states. [2018-07-23 23:36:37,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:36:37,074 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2018-07-23 23:36:37,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-23 23:36:37,075 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 13 [2018-07-23 23:36:37,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:36:37,075 INFO L225 Difference]: With dead ends: 18 [2018-07-23 23:36:37,075 INFO L226 Difference]: Without dead ends: 0 [2018-07-23 23:36:37,076 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-07-23 23:36:37,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-23 23:36:37,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-23 23:36:37,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-23 23:36:37,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-23 23:36:37,077 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-07-23 23:36:37,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:36:37,078 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-23 23:36:37,078 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-23 23:36:37,078 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-23 23:36:37,078 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-23 23:36:37,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-23 23:36:37,188 INFO L417 ceAbstractionStarter]: At program point L11''(lines 11 14) the Hoare annotation is: (or (< (mod (+ ULTIMATE.start_main_~x~0 4294967295) 4294967296) 6) (and (<= ULTIMATE.start_main_~x~0 0) (<= 0 ULTIMATE.start_main_~x~0))) [2018-07-23 23:36:37,188 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-07-23 23:36:37,189 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-07-23 23:36:37,189 INFO L421 ceAbstractionStarter]: For program point L11'''(lines 11 14) no Hoare annotation was computed. [2018-07-23 23:36:37,189 INFO L424 ceAbstractionStarter]: At program point L3''(lines 2 7) the Hoare annotation is: true [2018-07-23 23:36:37,189 INFO L421 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2018-07-23 23:36:37,190 INFO L421 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-07-23 23:36:37,190 INFO L421 ceAbstractionStarter]: For program point L8(lines 8 16) no Hoare annotation was computed. [2018-07-23 23:36:37,190 INFO L421 ceAbstractionStarter]: For program point L11(lines 11 14) no Hoare annotation was computed. [2018-07-23 23:36:37,190 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startErr0AssertViolationERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-07-23 23:36:37,190 INFO L421 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-07-23 23:36:37,190 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-07-23 23:36:37,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 11:36:37 BoogieIcfgContainer [2018-07-23 23:36:37,200 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 23:36:37,201 INFO L168 Benchmark]: Toolchain (without parser) took 2685.55 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 764.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -697.3 MB). Peak memory consumption was 67.1 MB. Max. memory is 7.1 GB. [2018-07-23 23:36:37,203 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 23:36:37,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.10 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 23:36:37,205 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.32 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 23:36:37,205 INFO L168 Benchmark]: Boogie Preprocessor took 20.75 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 23:36:37,206 INFO L168 Benchmark]: RCFGBuilder took 397.45 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 764.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -806.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-07-23 23:36:37,207 INFO L168 Benchmark]: TraceAbstraction took 1934.09 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 98.9 MB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. [2018-07-23 23:36:37,212 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 288.10 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 34.32 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 20.75 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 397.45 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 764.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -806.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1934.09 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 98.9 MB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 - InvariantResult [Line: 2]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (x + 4294967295) % 4294967296 < 6 || (x <= 0 && 0 <= x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. SAFE Result, 1.8s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 42 SDtfs, 3 SDslu, 48 SDs, 0 SdLazy, 69 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 8 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 16 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 21 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 79 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 2741 SizeOfPredicates, 3 NumberOfNonLiveVariables, 72 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 12/40 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/underapprox_true-unreach-call2_true-termination.i_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_23-36-37-226.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/underapprox_true-unreach-call2_true-termination.i_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_23-36-37-226.csv Received shutdown request...