java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/nested5_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b6335f6 [2018-10-23 09:45:51,673 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 09:45:51,675 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 09:45:51,686 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 09:45:51,687 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 09:45:51,688 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 09:45:51,689 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 09:45:51,691 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 09:45:51,693 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 09:45:51,693 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 09:45:51,694 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 09:45:51,695 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 09:45:51,696 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 09:45:51,697 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 09:45:51,698 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 09:45:51,699 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 09:45:51,700 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 09:45:51,702 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 09:45:51,704 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 09:45:51,705 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 09:45:51,706 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 09:45:51,707 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 09:45:51,710 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 09:45:51,719 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-23 09:45:51,734 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 09:45:51,734 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 09:45:51,735 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 09:45:51,735 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 09:45:51,736 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 09:45:51,736 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 09:45:51,736 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 09:45:51,737 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 09:45:51,737 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 09:45:51,737 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 09:45:51,737 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 09:45:51,737 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 09:45:51,738 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 09:45:51,738 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 09:45:51,738 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 09:45:51,738 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 09:45:51,738 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 09:45:51,739 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 09:45:51,739 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 09:45:51,739 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 09:45:51,739 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 09:45:51,739 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 09:45:51,740 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 09:45:51,740 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 09:45:51,740 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 09:45:51,740 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 09:45:51,740 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 09:45:51,740 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 09:45:51,797 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 09:45:51,814 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 09:45:51,818 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 09:45:51,819 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 09:45:51,820 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 09:45:51,821 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops-crafted-1/nested5_true-unreach-call.c [2018-10-23 09:45:51,882 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/385dd1448/0815741d16064e9ea4684aca32e3a81c/FLAG3bdcb214b [2018-10-23 09:45:52,288 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 09:45:52,289 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/nested5_true-unreach-call.c [2018-10-23 09:45:52,297 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/385dd1448/0815741d16064e9ea4684aca32e3a81c/FLAG3bdcb214b [2018-10-23 09:45:52,313 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/385dd1448/0815741d16064e9ea4684aca32e3a81c [2018-10-23 09:45:52,322 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 09:45:52,324 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 09:45:52,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 09:45:52,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 09:45:52,329 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 09:45:52,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:45:52" (1/1) ... [2018-10-23 09:45:52,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4601b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:52, skipping insertion in model container [2018-10-23 09:45:52,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:45:52" (1/1) ... [2018-10-23 09:45:52,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 09:45:52,366 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 09:45:52,549 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 09:45:52,554 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 09:45:52,576 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 09:45:52,597 INFO L193 MainTranslator]: Completed translation [2018-10-23 09:45:52,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:52 WrapperNode [2018-10-23 09:45:52,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 09:45:52,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 09:45:52,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 09:45:52,599 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 09:45:52,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:52" (1/1) ... [2018-10-23 09:45:52,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:52" (1/1) ... [2018-10-23 09:45:52,645 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 09:45:52,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 09:45:52,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 09:45:52,646 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 09:45:52,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:52" (1/1) ... [2018-10-23 09:45:52,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:52" (1/1) ... [2018-10-23 09:45:52,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:52" (1/1) ... [2018-10-23 09:45:52,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:52" (1/1) ... [2018-10-23 09:45:52,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:52" (1/1) ... [2018-10-23 09:45:52,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:52" (1/1) ... [2018-10-23 09:45:52,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:52" (1/1) ... [2018-10-23 09:45:52,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 09:45:52,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 09:45:52,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 09:45:52,685 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 09:45:52,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-23 09:45:52,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 09:45:52,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 09:45:53,361 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 09:45:53,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:45:53 BoogieIcfgContainer [2018-10-23 09:45:53,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 09:45:53,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 09:45:53,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 09:45:53,366 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 09:45:53,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:45:52" (1/3) ... [2018-10-23 09:45:53,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@642409c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:45:53, skipping insertion in model container [2018-10-23 09:45:53,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:45:52" (2/3) ... [2018-10-23 09:45:53,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@642409c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:45:53, skipping insertion in model container [2018-10-23 09:45:53,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:45:53" (3/3) ... [2018-10-23 09:45:53,370 INFO L112 eAbstractionObserver]: Analyzing ICFG nested5_true-unreach-call.c [2018-10-23 09:45:53,380 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 09:45:53,389 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 09:45:53,408 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 09:45:53,446 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 09:45:53,447 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 09:45:53,447 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 09:45:53,448 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 09:45:53,448 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 09:45:53,448 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 09:45:53,448 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 09:45:53,448 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 09:45:53,448 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 09:45:53,463 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-10-23 09:45:53,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-23 09:45:53,470 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:45:53,471 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:45:53,473 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:45:53,480 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:45:53,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1506433925, now seen corresponding path program 1 times [2018-10-23 09:45:53,482 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:45:53,483 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:45:53,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:45:53,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:45:53,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:45:53,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:45:53,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 09:45:53,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 09:45:53,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-23 09:45:53,627 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-23 09:45:53,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-23 09:45:53,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-23 09:45:53,643 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2018-10-23 09:45:53,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:45:53,661 INFO L93 Difference]: Finished difference Result 48 states and 68 transitions. [2018-10-23 09:45:53,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-23 09:45:53,663 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-10-23 09:45:53,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:45:53,674 INFO L225 Difference]: With dead ends: 48 [2018-10-23 09:45:53,675 INFO L226 Difference]: Without dead ends: 22 [2018-10-23 09:45:53,679 INFO L605 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 [2018-10-23 09:45:53,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-10-23 09:45:53,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-10-23 09:45:53,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-10-23 09:45:53,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2018-10-23 09:45:53,720 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 14 [2018-10-23 09:45:53,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:45:53,721 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2018-10-23 09:45:53,721 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-23 09:45:53,721 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2018-10-23 09:45:53,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-23 09:45:53,722 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:45:53,722 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:45:53,723 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:45:53,723 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:45:53,723 INFO L82 PathProgramCache]: Analyzing trace with hash 536635677, now seen corresponding path program 1 times [2018-10-23 09:45:53,723 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:45:53,723 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:45:53,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:45:53,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:45:53,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:45:53,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:45:53,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 09:45:53,944 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 09:45:53,944 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 09:45:53,946 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 09:45:53,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 09:45:53,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 09:45:53,947 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 3 states. [2018-10-23 09:45:54,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:45:54,078 INFO L93 Difference]: Finished difference Result 56 states and 68 transitions. [2018-10-23 09:45:54,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 09:45:54,079 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-10-23 09:45:54,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:45:54,081 INFO L225 Difference]: With dead ends: 56 [2018-10-23 09:45:54,081 INFO L226 Difference]: Without dead ends: 36 [2018-10-23 09:45:54,082 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 09:45:54,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-10-23 09:45:54,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 24. [2018-10-23 09:45:54,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-10-23 09:45:54,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2018-10-23 09:45:54,089 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 15 [2018-10-23 09:45:54,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:45:54,090 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2018-10-23 09:45:54,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 09:45:54,090 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2018-10-23 09:45:54,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-23 09:45:54,091 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:45:54,092 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:45:54,093 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:45:54,094 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:45:54,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1602562593, now seen corresponding path program 1 times [2018-10-23 09:45:54,094 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:45:54,094 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:45:54,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:45:54,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:45:54,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:45:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:45:54,240 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 09:45:54,240 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 09:45:54,240 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-10-23 09:45:54,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 09:45:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:45:54,299 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 09:45:54,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 09:45:54,380 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 09:45:54,380 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-10-23 09:45:54,381 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 09:45:54,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 09:45:54,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-23 09:45:54,382 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 4 states. [2018-10-23 09:45:54,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:45:54,507 INFO L93 Difference]: Finished difference Result 61 states and 73 transitions. [2018-10-23 09:45:54,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 09:45:54,508 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-10-23 09:45:54,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:45:54,509 INFO L225 Difference]: With dead ends: 61 [2018-10-23 09:45:54,509 INFO L226 Difference]: Without dead ends: 39 [2018-10-23 09:45:54,510 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-23 09:45:54,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-23 09:45:54,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 27. [2018-10-23 09:45:54,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-10-23 09:45:54,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2018-10-23 09:45:54,516 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 18 [2018-10-23 09:45:54,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:45:54,516 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2018-10-23 09:45:54,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 09:45:54,516 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2018-10-23 09:45:54,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-23 09:45:54,517 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:45:54,518 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:45:54,518 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:45:54,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:45:54,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1733486115, now seen corresponding path program 2 times [2018-10-23 09:45:54,519 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:45:54,519 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:45:54,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:45:54,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:45:54,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:45:54,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:45:54,726 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 09:45:54,727 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 09:45:54,727 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-23 09:45:54,741 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-23 09:45:54,776 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-23 09:45:54,777 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-23 09:45:54,779 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 09:45:54,847 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 09:45:54,882 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 09:45:54,882 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-10-23 09:45:54,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 09:45:54,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 09:45:54,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-23 09:45:54,884 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 5 states. [2018-10-23 09:45:55,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:45:55,052 INFO L93 Difference]: Finished difference Result 67 states and 79 transitions. [2018-10-23 09:45:55,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 09:45:55,056 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-10-23 09:45:55,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:45:55,057 INFO L225 Difference]: With dead ends: 67 [2018-10-23 09:45:55,057 INFO L226 Difference]: Without dead ends: 42 [2018-10-23 09:45:55,058 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-23 09:45:55,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-10-23 09:45:55,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 30. [2018-10-23 09:45:55,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-10-23 09:45:55,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2018-10-23 09:45:55,066 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 21 [2018-10-23 09:45:55,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:45:55,066 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2018-10-23 09:45:55,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 09:45:55,067 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2018-10-23 09:45:55,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-23 09:45:55,069 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:45:55,069 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:45:55,070 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:45:55,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:45:55,070 INFO L82 PathProgramCache]: Analyzing trace with hash 2049142047, now seen corresponding path program 3 times [2018-10-23 09:45:55,070 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:45:55,071 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:45:55,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:45:55,073 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-23 09:45:55,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:45:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:45:55,234 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 09:45:55,234 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 09:45:55,234 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-23 09:45:55,250 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-23 09:45:55,274 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-10-23 09:45:55,275 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-23 09:45:55,277 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 09:45:57,598 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_5 Int)) (let ((.cse0 (mod v_prenex_5 4)) (.cse1 (mod v_prenex_5 4294967296))) (and (<= .cse0 2147483647) (<= 0 .cse1) (= .cse0 c_ULTIMATE.start___VERIFIER_assert_~cond) (<= 10 .cse1) (< (mod (+ v_prenex_5 4294967295) 4294967296) 10)))) (exists ((v_prenex_4 Int)) (let ((.cse4 (mod v_prenex_4 4))) (let ((.cse2 (mod (+ .cse4 4294967292) 4294967296)) (.cse3 (mod v_prenex_4 4294967296))) (and (<= .cse2 2147483647) (<= 10 .cse3) (= .cse2 c_ULTIMATE.start___VERIFIER_assert_~cond) (not (= 0 .cse4)) (< (mod (+ v_prenex_4 4294967295) 4294967296) 10) (< .cse3 0))))) (exists ((ULTIMATE.start_main_~v~0 Int)) (let ((.cse6 (mod ULTIMATE.start_main_~v~0 4)) (.cse5 (mod ULTIMATE.start_main_~v~0 4294967296))) (and (<= 0 .cse5) (= .cse6 (+ c_ULTIMATE.start___VERIFIER_assert_~cond 4294967296)) (< (mod (+ ULTIMATE.start_main_~v~0 4294967295) 4294967296) 10) (< 2147483647 .cse6) (<= 10 .cse5)))) (exists ((v_prenex_2 Int)) (let ((.cse7 (mod v_prenex_2 4))) (and (<= 10 (mod v_prenex_2 4294967296)) (= 0 .cse7) (= .cse7 c_ULTIMATE.start___VERIFIER_assert_~cond) (< (mod (+ v_prenex_2 4294967295) 4294967296) 10) (<= .cse7 2147483647)))) (exists ((v_prenex_1 Int)) (let ((.cse10 (mod v_prenex_1 4))) (let ((.cse8 (mod v_prenex_1 4294967296)) (.cse9 (mod (+ .cse10 4294967292) 4294967296))) (and (<= 10 .cse8) (< (mod (+ v_prenex_1 4294967295) 4294967296) 10) (= .cse9 (+ c_ULTIMATE.start___VERIFIER_assert_~cond 4294967296)) (< .cse8 0) (not (= 0 .cse10)) (< 2147483647 .cse9))))) (exists ((v_prenex_3 Int)) (let ((.cse11 (mod v_prenex_3 4))) (and (< (mod (+ v_prenex_3 4294967295) 4294967296) 10) (= .cse11 (+ c_ULTIMATE.start___VERIFIER_assert_~cond 4294967296)) (< 2147483647 .cse11) (<= 10 (mod v_prenex_3 4294967296)) (= 0 .cse11))))) is different from true [2018-10-23 09:46:02,162 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-23 09:46:02,184 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 09:46:02,184 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-23 09:46:02,185 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-23 09:46:02,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-23 09:46:02,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=50, Unknown=1, NotChecked=14, Total=90 [2018-10-23 09:46:02,188 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 10 states. [2018-10-23 09:46:26,877 WARN L179 SmtUtils]: Spent 17.88 s on a formula simplification. DAG size of input: 91 DAG size of output: 26 [2018-10-23 09:46:28,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:46:28,917 INFO L93 Difference]: Finished difference Result 73 states and 87 transitions. [2018-10-23 09:46:28,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-23 09:46:28,918 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2018-10-23 09:46:28,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:46:28,918 INFO L225 Difference]: With dead ends: 73 [2018-10-23 09:46:28,919 INFO L226 Difference]: Without dead ends: 0 [2018-10-23 09:46:28,920 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 27.1s TimeCoverageRelationStatistics Valid=36, Invalid=77, Unknown=1, NotChecked=18, Total=132 [2018-10-23 09:46:28,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-23 09:46:28,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-23 09:46:28,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-23 09:46:28,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-23 09:46:28,922 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2018-10-23 09:46:28,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:46:28,922 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-23 09:46:28,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-23 09:46:28,922 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-23 09:46:28,923 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-23 09:46:28,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-23 09:46:29,105 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 12 [2018-10-23 09:46:29,158 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-23 09:46:29,158 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 22) no Hoare annotation was computed. [2018-10-23 09:46:29,159 INFO L425 ceAbstractionStarter]: For program point L19-3(lines 19 22) no Hoare annotation was computed. [2018-10-23 09:46:29,159 INFO L428 ceAbstractionStarter]: At program point L19-4(lines 19 22) the Hoare annotation is: true [2018-10-23 09:46:29,159 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-23 09:46:29,159 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-23 09:46:29,159 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-23 09:46:29,160 INFO L425 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-10-23 09:46:29,160 INFO L425 ceAbstractionStarter]: For program point L20-3(line 20) no Hoare annotation was computed. [2018-10-23 09:46:29,160 INFO L421 ceAbstractionStarter]: At program point L20-4(line 20) the Hoare annotation is: (or (and (<= 0 ULTIMATE.start_main_~v~0) (<= ULTIMATE.start_main_~v~0 0)) (< (mod (+ ULTIMATE.start_main_~v~0 4294967295) 4294967296) 10)) [2018-10-23 09:46:29,160 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 22) no Hoare annotation was computed. [2018-10-23 09:46:29,160 INFO L425 ceAbstractionStarter]: For program point L20-5(line 20) no Hoare annotation was computed. [2018-10-23 09:46:29,160 INFO L425 ceAbstractionStarter]: For program point L16-3(lines 16 22) no Hoare annotation was computed. [2018-10-23 09:46:29,161 INFO L428 ceAbstractionStarter]: At program point L16-4(lines 16 22) the Hoare annotation is: true [2018-10-23 09:46:29,161 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-23 09:46:29,161 INFO L428 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2018-10-23 09:46:29,161 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-23 09:46:29,161 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 22) no Hoare annotation was computed. [2018-10-23 09:46:29,161 INFO L425 ceAbstractionStarter]: For program point L17-3(lines 17 22) no Hoare annotation was computed. [2018-10-23 09:46:29,162 INFO L428 ceAbstractionStarter]: At program point L17-4(lines 17 22) the Hoare annotation is: true [2018-10-23 09:46:29,163 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-23 09:46:29,163 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2018-10-23 09:46:29,164 INFO L425 ceAbstractionStarter]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2018-10-23 09:46:29,164 INFO L428 ceAbstractionStarter]: At program point L18-4(lines 18 22) the Hoare annotation is: true [2018-10-23 09:46:29,164 INFO L425 ceAbstractionStarter]: For program point L10(lines 10 23) no Hoare annotation was computed. [2018-10-23 09:46:29,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:46:29 BoogieIcfgContainer [2018-10-23 09:46:29,186 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 09:46:29,192 INFO L168 Benchmark]: Toolchain (without parser) took 36868.73 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -639.2 MB). Peak memory consumption was 102.6 MB. Max. memory is 7.1 GB. [2018-10-23 09:46:29,194 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-10-23 09:46:29,196 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.91 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. [2018-10-23 09:46:29,197 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.19 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. [2018-10-23 09:46:29,199 INFO L168 Benchmark]: Boogie Preprocessor took 38.95 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. [2018-10-23 09:46:29,200 INFO L168 Benchmark]: RCFGBuilder took 677.11 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -777.7 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-10-23 09:46:29,202 INFO L168 Benchmark]: TraceAbstraction took 35823.49 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: 127.9 MB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. [2018-10-23 09:46:29,210 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 272.91 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 46.19 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 38.95 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 677.11 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -777.7 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 35823.49 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: 127.9 MB). Peak memory consumption was 127.9 MB. 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: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (0 <= v && v <= 0) || (v + 4294967295) % 4294967296 < 10 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. SAFE Result, 35.7s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 27.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 126 SDtfs, 80 SDslu, 203 SDs, 0 SdLazy, 103 SolverSat, 12 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 63 SyntacticMatches, 7 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 27.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 36 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 21 NumberOfFragments, 20 HoareAnnotationTreeSize, 6 FomulaSimplifications, 13 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 21 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 155 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 147 ConstructedInterpolants, 1 QuantifiedInterpolants, 12855 SizeOfPredicates, 5 NumberOfNonLiveVariables, 130 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 15/48 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...