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/loops/lu.cmp_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 23:29:31,984 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 23:29:31,987 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 23:29:31,999 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 23:29:32,000 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 23:29:32,001 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 23:29:32,003 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 23:29:32,006 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 23:29:32,008 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 23:29:32,009 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 23:29:32,011 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 23:29:32,011 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 23:29:32,012 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 23:29:32,013 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 23:29:32,014 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 23:29:32,015 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 23:29:32,018 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 23:29:32,028 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 23:29:32,030 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 23:29:32,033 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 23:29:32,035 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 23:29:32,037 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 23:29:32,040 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 23:29:32,041 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 23:29:32,041 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 23:29:32,043 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 23:29:32,044 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 23:29:32,045 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 23:29:32,046 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 23:29:32,047 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 23:29:32,047 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 23:29:32,048 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-23 23:29:32,054 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 23:29:32,083 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 23:29:32,083 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 23:29:32,084 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 23:29:32,084 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-23 23:29:32,085 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-23 23:29:32,086 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-23 23:29:32,086 INFO L133 SettingsManager]: * Use SBE=true [2018-07-23 23:29:32,087 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 23:29:32,087 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 23:29:32,087 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 23:29:32,087 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 23:29:32,088 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 23:29:32,088 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 23:29:32,088 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 23:29:32,088 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 23:29:32,088 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 23:29:32,089 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 23:29:32,089 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 23:29:32,089 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 23:29:32,089 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 23:29:32,090 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 23:29:32,090 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 23:29:32,090 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 23:29:32,090 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-23 23:29:32,091 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 23:29:32,092 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 23:29:32,092 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 23:29:32,092 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 23:29:32,163 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 23:29:32,179 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 23:29:32,183 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 23:29:32,184 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 23:29:32,185 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 23:29:32,186 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/lu.cmp_true-unreach-call.i [2018-07-23 23:29:32,523 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d77aad75c/da96c8937cbf4188ade0dd2af64d1daf/FLAG5ea755c6f [2018-07-23 23:29:32,676 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 23:29:32,676 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/lu.cmp_true-unreach-call.i [2018-07-23 23:29:32,685 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d77aad75c/da96c8937cbf4188ade0dd2af64d1daf/FLAG5ea755c6f [2018-07-23 23:29:32,701 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d77aad75c/da96c8937cbf4188ade0dd2af64d1daf [2018-07-23 23:29:32,714 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 23:29:32,716 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 23:29:32,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 23:29:32,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 23:29:32,724 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 23:29:32,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 11:29:32" (1/1) ... [2018-07-23 23:29:32,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71a24c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:32, skipping insertion in model container [2018-07-23 23:29:32,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 11:29:32" (1/1) ... [2018-07-23 23:29:32,892 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 23:29:32,991 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 23:29:33,169 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 23:29:33,194 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 23:29:33,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:33 WrapperNode [2018-07-23 23:29:33,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 23:29:33,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 23:29:33,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 23:29:33,293 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 23:29:33,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:33" (1/1) ... [2018-07-23 23:29:33,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:33" (1/1) ... [2018-07-23 23:29:33,410 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 23:29:33,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 23:29:33,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 23:29:33,411 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 23:29:33,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:33" (1/1) ... [2018-07-23 23:29:33,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:33" (1/1) ... [2018-07-23 23:29:33,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:33" (1/1) ... [2018-07-23 23:29:33,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:33" (1/1) ... [2018-07-23 23:29:33,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:33" (1/1) ... [2018-07-23 23:29:33,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:33" (1/1) ... [2018-07-23 23:29:33,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:33" (1/1) ... [2018-07-23 23:29:33,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 23:29:33,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 23:29:33,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 23:29:33,590 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 23:29:33,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:33" (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 23:29:33,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 23:29:33,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 23:29:44,767 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 23:29:44,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 11:29:44 BoogieIcfgContainer [2018-07-23 23:29:44,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 23:29:44,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 23:29:44,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 23:29:44,773 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 23:29:44,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 11:29:32" (1/3) ... [2018-07-23 23:29:44,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba6fb10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 11:29:44, skipping insertion in model container [2018-07-23 23:29:44,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 11:29:33" (2/3) ... [2018-07-23 23:29:44,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba6fb10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 11:29:44, skipping insertion in model container [2018-07-23 23:29:44,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 11:29:44" (3/3) ... [2018-07-23 23:29:44,776 INFO L112 eAbstractionObserver]: Analyzing ICFG lu.cmp_true-unreach-call.i [2018-07-23 23:29:44,785 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 23:29:44,793 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 23:29:44,844 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 23:29:44,844 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 23:29:44,845 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 23:29:44,845 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 23:29:44,845 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 23:29:44,845 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 23:29:44,846 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 23:29:44,846 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 23:29:44,846 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 23:29:44,862 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2018-07-23 23:29:44,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-23 23:29:44,869 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:29:44,869 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:29:44,870 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:29:44,875 INFO L82 PathProgramCache]: Analyzing trace with hash 150442924, now seen corresponding path program 1 times [2018-07-23 23:29:44,877 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:29:44,878 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:29:44,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:44,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:44,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:45,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:46,498 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 23:29:46,501 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:29:46,501 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-23 23:29:46,506 INFO L450 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-07-23 23:29:46,521 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-07-23 23:29:46,522 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-23 23:29:46,525 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2018-07-23 23:29:46,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:29:46,553 INFO L93 Difference]: Finished difference Result 120 states and 174 transitions. [2018-07-23 23:29:46,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-23 23:29:46,555 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2018-07-23 23:29:46,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:29:46,568 INFO L225 Difference]: With dead ends: 120 [2018-07-23 23:29:46,568 INFO L226 Difference]: Without dead ends: 15 [2018-07-23 23:29:46,574 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 23:29:46,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-07-23 23:29:46,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-07-23 23:29:46,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-07-23 23:29:46,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2018-07-23 23:29:46,614 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 8 [2018-07-23 23:29:46,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:29:46,614 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2018-07-23 23:29:46,615 INFO L472 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-07-23 23:29:46,615 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-07-23 23:29:46,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-07-23 23:29:46,615 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:29:46,616 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:29:46,616 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:29:46,616 INFO L82 PathProgramCache]: Analyzing trace with hash 353537240, now seen corresponding path program 1 times [2018-07-23 23:29:46,616 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:29:46,616 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:29:46,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:46,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:46,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:48,487 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 23:29:48,487 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:29:48,487 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 23:29:48,489 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 23:29:48,489 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 23:29:48,489 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 23:29:48,490 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2018-07-23 23:29:48,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:29:48,784 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2018-07-23 23:29:48,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 23:29:48,786 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-07-23 23:29:48,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:29:48,786 INFO L225 Difference]: With dead ends: 46 [2018-07-23 23:29:48,787 INFO L226 Difference]: Without dead ends: 33 [2018-07-23 23:29:48,789 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-23 23:29:48,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-07-23 23:29:48,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 20. [2018-07-23 23:29:48,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-07-23 23:29:48,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-07-23 23:29:48,794 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 9 [2018-07-23 23:29:48,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:29:48,795 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-07-23 23:29:48,795 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 23:29:48,795 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-07-23 23:29:48,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-23 23:29:48,795 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:29:48,795 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:29:48,796 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:29:48,796 INFO L82 PathProgramCache]: Analyzing trace with hash -866044876, now seen corresponding path program 1 times [2018-07-23 23:29:48,796 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:29:48,796 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:29:48,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:48,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:48,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:50,012 WARN L169 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 3 [2018-07-23 23:29:50,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-23 23:29:50,035 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:29:50,036 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 23:29:50,036 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 23:29:50,036 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 23:29:50,036 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 23:29:50,037 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 4 states. [2018-07-23 23:29:50,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:29:50,211 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2018-07-23 23:29:50,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 23:29:50,212 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-07-23 23:29:50,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:29:50,213 INFO L225 Difference]: With dead ends: 31 [2018-07-23 23:29:50,213 INFO L226 Difference]: Without dead ends: 29 [2018-07-23 23:29:50,213 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-23 23:29:50,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-07-23 23:29:50,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2018-07-23 23:29:50,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-07-23 23:29:50,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2018-07-23 23:29:50,218 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 14 [2018-07-23 23:29:50,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:29:50,219 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2018-07-23 23:29:50,219 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 23:29:50,219 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2018-07-23 23:29:50,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-07-23 23:29:50,220 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:29:50,220 INFO L353 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:29:50,220 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:29:50,220 INFO L82 PathProgramCache]: Analyzing trace with hash 442130914, now seen corresponding path program 1 times [2018-07-23 23:29:50,221 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:29:50,221 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:29:50,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:50,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:50,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:51,389 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 23:29:51,390 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:29:51,390 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 23:29:51,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:51,478 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:29:51,620 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-23 23:29:51,642 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:29:51,642 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 11 [2018-07-23 23:29:51,643 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 23:29:51,643 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 23:29:51,643 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-07-23 23:29:51,644 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 11 states. [2018-07-23 23:29:52,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:29:52,497 INFO L93 Difference]: Finished difference Result 85 states and 101 transitions. [2018-07-23 23:29:52,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-23 23:29:52,498 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2018-07-23 23:29:52,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:29:52,501 INFO L225 Difference]: With dead ends: 85 [2018-07-23 23:29:52,501 INFO L226 Difference]: Without dead ends: 66 [2018-07-23 23:29:52,502 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2018-07-23 23:29:52,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-07-23 23:29:52,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 44. [2018-07-23 23:29:52,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-07-23 23:29:52,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2018-07-23 23:29:52,511 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 22 [2018-07-23 23:29:52,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:29:52,511 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2018-07-23 23:29:52,511 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 23:29:52,511 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2018-07-23 23:29:52,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-07-23 23:29:52,513 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:29:52,513 INFO L353 BasicCegarLoop]: trace histogram [6, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:29:52,513 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:29:52,513 INFO L82 PathProgramCache]: Analyzing trace with hash 129551940, now seen corresponding path program 1 times [2018-07-23 23:29:52,513 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:29:52,514 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:29:52,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:52,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:52,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:53,949 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 29 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-07-23 23:29:53,950 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:29:53,950 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 23:29:53,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:54,026 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:29:54,235 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-07-23 23:29:54,265 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:29:54,265 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 9 [2018-07-23 23:29:54,265 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-23 23:29:54,266 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-23 23:29:54,266 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-07-23 23:29:54,266 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand 9 states. [2018-07-23 23:29:55,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:29:55,026 INFO L93 Difference]: Finished difference Result 96 states and 113 transitions. [2018-07-23 23:29:55,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-23 23:29:55,026 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2018-07-23 23:29:55,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:29:55,028 INFO L225 Difference]: With dead ends: 96 [2018-07-23 23:29:55,028 INFO L226 Difference]: Without dead ends: 68 [2018-07-23 23:29:55,029 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2018-07-23 23:29:55,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-07-23 23:29:55,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 54. [2018-07-23 23:29:55,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-07-23 23:29:55,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2018-07-23 23:29:55,038 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 37 [2018-07-23 23:29:55,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:29:55,038 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2018-07-23 23:29:55,038 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-23 23:29:55,038 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2018-07-23 23:29:55,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-07-23 23:29:55,040 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:29:55,040 INFO L353 BasicCegarLoop]: trace histogram [8, 6, 6, 6, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:29:55,040 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:29:55,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1094049640, now seen corresponding path program 2 times [2018-07-23 23:29:55,041 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:29:55,041 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:29:55,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:55,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 23:29:55,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:56,124 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-07-23 23:29:56,124 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 23:29:56,124 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 23:29:56,125 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 23:29:56,125 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 23:29:56,125 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 23:29:56,126 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand 4 states. [2018-07-23 23:29:56,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:29:56,202 INFO L93 Difference]: Finished difference Result 118 states and 134 transitions. [2018-07-23 23:29:56,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 23:29:56,202 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2018-07-23 23:29:56,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:29:56,203 INFO L225 Difference]: With dead ends: 118 [2018-07-23 23:29:56,204 INFO L226 Difference]: Without dead ends: 71 [2018-07-23 23:29:56,204 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 23:29:56,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-07-23 23:29:56,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 63. [2018-07-23 23:29:56,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-07-23 23:29:56,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2018-07-23 23:29:56,214 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 47 [2018-07-23 23:29:56,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:29:56,214 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2018-07-23 23:29:56,214 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 23:29:56,215 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2018-07-23 23:29:56,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-07-23 23:29:56,216 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 23:29:56,216 INFO L353 BasicCegarLoop]: trace histogram [8, 6, 6, 6, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 23:29:56,217 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 23:29:56,217 INFO L82 PathProgramCache]: Analyzing trace with hash 284703014, now seen corresponding path program 3 times [2018-07-23 23:29:56,217 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-23 23:29:56,217 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-23 23:29:56,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:56,218 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 23:29:56,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 23:29:56,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 23:29:57,229 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-07-23 23:29:57,229 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 23:29:57,230 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 23:29:57,249 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-07-23 23:29:57,287 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2018-07-23 23:29:57,288 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 23:29:57,293 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 23:29:57,390 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2018-07-23 23:29:57,411 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-23 23:29:57,412 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2018-07-23 23:29:57,412 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-23 23:29:57,412 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-23 23:29:57,412 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-07-23 23:29:57,413 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand 9 states. [2018-07-23 23:29:57,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 23:29:57,571 INFO L93 Difference]: Finished difference Result 105 states and 117 transitions. [2018-07-23 23:29:57,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 23:29:57,571 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 47 [2018-07-23 23:29:57,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 23:29:57,572 INFO L225 Difference]: With dead ends: 105 [2018-07-23 23:29:57,572 INFO L226 Difference]: Without dead ends: 0 [2018-07-23 23:29:57,574 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2018-07-23 23:29:57,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-23 23:29:57,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-23 23:29:57,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-23 23:29:57,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-23 23:29:57,575 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2018-07-23 23:29:57,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 23:29:57,575 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-23 23:29:57,575 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-23 23:29:57,575 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-23 23:29:57,575 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-23 23:29:57,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-23 23:29:57,593 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:29:57,607 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:29:57,608 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:29:57,620 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:29:57,622 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:29:57,624 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:29:57,627 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-23 23:29:57,783 WARN L169 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2018-07-23 23:29:58,060 WARN L169 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 20 [2018-07-23 23:29:58,066 INFO L421 ceAbstractionStarter]: For program point L50'(lines 50 52) no Hoare annotation was computed. [2018-07-23 23:29:58,066 INFO L421 ceAbstractionStarter]: For program point L64(lines 64 70) no Hoare annotation was computed. [2018-07-23 23:29:58,066 INFO L421 ceAbstractionStarter]: For program point L67(lines 67 68) no Hoare annotation was computed. [2018-07-23 23:29:58,066 INFO L424 ceAbstractionStarter]: At program point L75'''(lines 75 76) the Hoare annotation is: true [2018-07-23 23:29:58,066 INFO L424 ceAbstractionStarter]: At program point L72'''(lines 72 78) the Hoare annotation is: true [2018-07-23 23:29:58,067 INFO L421 ceAbstractionStarter]: For program point L72''(lines 72 78) no Hoare annotation was computed. [2018-07-23 23:29:58,067 INFO L417 ceAbstractionStarter]: At program point L23'''(lines 23 34) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~n~0 5)) (.cse1 (<= 5 ULTIMATE.start_main_~n~0))) (or (and .cse0 (= ULTIMATE.start_main_~i~0 0) .cse1) (and (<= 1 ULTIMATE.start_main_~i~0) .cse0 .cse1 (= 1 ULTIMATE.start___U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assert_~cond)) (and (<= (+ ULTIMATE.start_main_~n~0 1) ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~i~0) .cse1 (not (= ULTIMATE.start___U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assert_~cond 0))))) [2018-07-23 23:29:58,067 INFO L421 ceAbstractionStarter]: For program point L47''''(lines 47 54) no Hoare annotation was computed. [2018-07-23 23:29:58,067 INFO L421 ceAbstractionStarter]: For program point L64''(lines 64 70) no Hoare annotation was computed. [2018-07-23 23:29:58,067 INFO L421 ceAbstractionStarter]: For program point L72(lines 72 78) no Hoare annotation was computed. [2018-07-23 23:29:58,067 INFO L421 ceAbstractionStarter]: For program point L75(lines 75 76) no Hoare annotation was computed. [2018-07-23 23:29:58,068 INFO L424 ceAbstractionStarter]: At program point L79(lines 39 80) the Hoare annotation is: true [2018-07-23 23:29:58,068 INFO L421 ceAbstractionStarter]: For program point L26''(lines 26 31) no Hoare annotation was computed. [2018-07-23 23:29:58,068 INFO L424 ceAbstractionStarter]: At program point L64'''(lines 64 70) the Hoare annotation is: true [2018-07-23 23:29:58,068 INFO L417 ceAbstractionStarter]: At program point L26'''(lines 26 31) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~n~0 5)) (.cse1 (= ULTIMATE.start_main_~i~0 0)) (.cse2 (<= 5 ULTIMATE.start_main_~n~0))) (or (and .cse0 (= ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0) .cse1 .cse2) (and (<= 1 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~i~0 5) (= 1 ULTIMATE.start___U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assert_~cond) .cse2) (and .cse0 .cse1 (<= (+ ULTIMATE.start_main_~i~0 1) ULTIMATE.start_main_~j~0) .cse2))) [2018-07-23 23:29:58,068 INFO L421 ceAbstractionStarter]: For program point L23''''(lines 23 34) no Hoare annotation was computed. [2018-07-23 23:29:58,068 INFO L421 ceAbstractionStarter]: For program point L58''(lines 58 59) no Hoare annotation was computed. [2018-07-23 23:29:58,069 INFO L424 ceAbstractionStarter]: At program point L58'''(lines 58 59) the Hoare annotation is: true [2018-07-23 23:29:58,069 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-07-23 23:29:58,069 INFO L424 ceAbstractionStarter]: At program point L44'''(lines 44 62) the Hoare annotation is: true [2018-07-23 23:29:58,069 INFO L421 ceAbstractionStarter]: For program point L72''''(lines 72 78) no Hoare annotation was computed. [2018-07-23 23:29:58,069 INFO L421 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-07-23 23:29:58,069 INFO L424 ceAbstractionStarter]: At program point L55'''(lines 55 61) the Hoare annotation is: true [2018-07-23 23:29:58,070 INFO L421 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-07-23 23:29:58,070 INFO L417 ceAbstractionStarter]: At program point L4''(lines 3 8) the Hoare annotation is: (let ((.cse0 (<= 5 ULTIMATE.start_main_~n~0))) (or (and (<= ULTIMATE.start_main_~n~0 5) (<= ULTIMATE.start_main_~i~0 5) (= 1 ULTIMATE.start___U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assert_~cond) (or (and (= ULTIMATE.start_main_~i~0 0) .cse0) (and (<= 1 ULTIMATE.start_main_~i~0) .cse0))) (and (<= ULTIMATE.start_main_~j~0 (+ ULTIMATE.start_main_~i~0 1)) (<= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~i~0) .cse0 (not (= ULTIMATE.start___U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assert_~cond 0))))) [2018-07-23 23:29:58,070 INFO L421 ceAbstractionStarter]: For program point L23''(lines 23 34) no Hoare annotation was computed. [2018-07-23 23:29:58,070 INFO L421 ceAbstractionStarter]: For program point L14(lines 14 15) no Hoare annotation was computed. [2018-07-23 23:29:58,070 INFO L424 ceAbstractionStarter]: At program point L16(lines 11 17) the Hoare annotation is: true [2018-07-23 23:29:58,070 INFO L421 ceAbstractionStarter]: For program point L44''''(lines 44 62) no Hoare annotation was computed. [2018-07-23 23:29:58,070 INFO L421 ceAbstractionStarter]: For program point L55''(lines 55 61) no Hoare annotation was computed. [2018-07-23 23:29:58,071 INFO L421 ceAbstractionStarter]: For program point L23(lines 23 34) no Hoare annotation was computed. [2018-07-23 23:29:58,071 INFO L421 ceAbstractionStarter]: For program point L51''(lines 51 52) no Hoare annotation was computed. [2018-07-23 23:29:58,071 INFO L421 ceAbstractionStarter]: For program point L26(lines 26 31) no Hoare annotation was computed. [2018-07-23 23:29:58,071 INFO L421 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-07-23 23:29:58,071 INFO L421 ceAbstractionStarter]: For program point L64''''(lines 64 70) no Hoare annotation was computed. [2018-07-23 23:29:58,071 INFO L421 ceAbstractionStarter]: For program point L47''(lines 47 54) no Hoare annotation was computed. [2018-07-23 23:29:58,071 INFO L424 ceAbstractionStarter]: At program point L37(lines 18 38) the Hoare annotation is: true [2018-07-23 23:29:58,072 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-07-23 23:29:58,072 INFO L424 ceAbstractionStarter]: At program point L47'''(lines 47 54) the Hoare annotation is: true [2018-07-23 23:29:58,072 INFO L421 ceAbstractionStarter]: For program point L75''(lines 75 76) no Hoare annotation was computed. [2018-07-23 23:29:58,072 INFO L421 ceAbstractionStarter]: For program point L14''(lines 14 15) no Hoare annotation was computed. [2018-07-23 23:29:58,072 INFO L421 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-07-23 23:29:58,072 INFO L421 ceAbstractionStarter]: For program point L44(lines 44 62) no Hoare annotation was computed. [2018-07-23 23:29:58,072 INFO L421 ceAbstractionStarter]: For program point L47(lines 47 54) no Hoare annotation was computed. [2018-07-23 23:29:58,072 INFO L421 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-07-23 23:29:58,073 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-07-23 23:29:58,073 INFO L421 ceAbstractionStarter]: For program point L67''''(lines 67 68) no Hoare annotation was computed. [2018-07-23 23:29:58,073 INFO L424 ceAbstractionStarter]: At program point L67'''(lines 67 68) the Hoare annotation is: true [2018-07-23 23:29:58,073 INFO L421 ceAbstractionStarter]: For program point L75''''(lines 75 76) no Hoare annotation was computed. [2018-07-23 23:29:58,073 INFO L421 ceAbstractionStarter]: For program point L58''''(lines 58 59) no Hoare annotation was computed. [2018-07-23 23:29:58,073 INFO L421 ceAbstractionStarter]: For program point L67''(lines 67 68) no Hoare annotation was computed. [2018-07-23 23:29:58,073 INFO L421 ceAbstractionStarter]: For program point L50(lines 50 52) no Hoare annotation was computed. [2018-07-23 23:29:58,074 INFO L421 ceAbstractionStarter]: For program point L26''''(lines 26 31) no Hoare annotation was computed. [2018-07-23 23:29:58,074 INFO L421 ceAbstractionStarter]: For program point L51(lines 51 52) no Hoare annotation was computed. [2018-07-23 23:29:58,074 INFO L421 ceAbstractionStarter]: For program point L44''(lines 44 62) no Hoare annotation was computed. [2018-07-23 23:29:58,074 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startErr0AssertViolationERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-07-23 23:29:58,074 INFO L424 ceAbstractionStarter]: At program point L51'''(lines 51 52) the Hoare annotation is: true [2018-07-23 23:29:58,074 INFO L421 ceAbstractionStarter]: For program point L55(lines 55 61) no Hoare annotation was computed. [2018-07-23 23:29:58,074 INFO L421 ceAbstractionStarter]: For program point L58(lines 58 59) no Hoare annotation was computed. [2018-07-23 23:29:58,075 INFO L421 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-07-23 23:29:58,075 INFO L421 ceAbstractionStarter]: For program point L29''(line 29) no Hoare annotation was computed. [2018-07-23 23:29:58,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 11:29:58 BoogieIcfgContainer [2018-07-23 23:29:58,092 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 23:29:58,093 INFO L168 Benchmark]: Toolchain (without parser) took 25377.99 ms. Allocated memory was 1.6 GB in the beginning and 3.0 GB in the end (delta: 1.4 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 277.9 MB. Max. memory is 7.1 GB. [2018-07-23 23:29:58,094 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 23:29:58,095 INFO L168 Benchmark]: CACSL2BoogieTranslator took 575.02 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-23 23:29:58,096 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.02 ms. Allocated memory is still 1.6 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 23:29:58,096 INFO L168 Benchmark]: Boogie Preprocessor took 178.48 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2018-07-23 23:29:58,097 INFO L168 Benchmark]: RCFGBuilder took 11178.18 ms. Allocated memory was 1.6 GB in the beginning and 2.8 GB in the end (delta: 1.3 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -505.8 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-07-23 23:29:58,098 INFO L168 Benchmark]: TraceAbstraction took 13322.93 ms. Allocated memory was 2.8 GB in the beginning and 3.0 GB in the end (delta: 188.2 MB). Free memory was 1.9 GB in the beginning and 2.6 GB in the end (delta: -736.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 23:29:58,108 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 575.02 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 118.02 ms. Allocated memory is still 1.6 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 Preprocessor took 178.48 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11178.18 ms. Allocated memory was 1.6 GB in the beginning and 2.8 GB in the end (delta: 1.3 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -505.8 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 13322.93 ms. Allocated memory was 2.8 GB in the beginning and 3.0 GB in the end (delta: 188.2 MB). Free memory was 1.9 GB in the beginning and 2.6 GB in the end (delta: -736.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 55]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: (((n <= 5 && i <= 5) && 1 == cond) && ((i == 0 && 5 <= n) || (1 <= i && 5 <= n))) || (((j <= i + 1 && n <= i) && 5 <= n) && !(cond == 0)) - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((n <= 5 && i == 0) && 5 <= n) || (((1 <= i && n <= 5) && 5 <= n) && 1 == cond)) || (((n + 1 <= i && j <= i) && 5 <= n) && !(cond == 0)) - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: ((((n <= 5 && i == j) && i == 0) && 5 <= n) || ((((1 <= i && n <= 5) && i <= 5) && 1 == cond) && 5 <= n)) || (((n <= 5 && i == 0) && i + 1 <= j) && 5 <= n) - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 61 locations, 1 error locations. SAFE Result, 13.2s OverallTime, 7 OverallIterations, 8 TraceHistogramMax, 2.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 150 SDtfs, 298 SDslu, 197 SDs, 0 SdLazy, 332 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 163 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=6, 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, 7 MinimizatonAttempts, 59 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 15 PreInvPairs, 54 NumberOfFragments, 139 HoareAnnotationTreeSize, 15 FomulaSimplifications, 1063 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 111 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 290 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 280 ConstructedInterpolants, 0 QuantifiedInterpolants, 26149 SizeOfPredicates, 8 NumberOfNonLiveVariables, 159 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 292/441 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/lu.cmp_true-unreach-call.i_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_23-29-58-144.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/lu.cmp_true-unreach-call.i_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_23-29-58-144.csv Received shutdown request...