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/loop-lit/jm2006_true-unreach-call.c.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b6335f6 [2018-10-23 09:40:15,513 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 09:40:15,519 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 09:40:15,536 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 09:40:15,536 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 09:40:15,538 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 09:40:15,541 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 09:40:15,544 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 09:40:15,547 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 09:40:15,549 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 09:40:15,550 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 09:40:15,551 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 09:40:15,553 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 09:40:15,555 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 09:40:15,557 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 09:40:15,558 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 09:40:15,566 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 09:40:15,568 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 09:40:15,570 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 09:40:15,575 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 09:40:15,577 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 09:40:15,578 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 09:40:15,583 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 09:40:15,594 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 09:40:15,617 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 09:40:15,617 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 09:40:15,618 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 09:40:15,618 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 09:40:15,621 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 09:40:15,621 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 09:40:15,621 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 09:40:15,621 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 09:40:15,622 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 09:40:15,622 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 09:40:15,622 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 09:40:15,622 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 09:40:15,622 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 09:40:15,623 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 09:40:15,623 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 09:40:15,623 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 09:40:15,623 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 09:40:15,623 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 09:40:15,623 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 09:40:15,625 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 09:40:15,625 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 09:40:15,625 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 09:40:15,625 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 09:40:15,626 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 09:40:15,626 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 09:40:15,626 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 09:40:15,626 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 09:40:15,626 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 09:40:15,682 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 09:40:15,697 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 09:40:15,702 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 09:40:15,704 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 09:40:15,704 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 09:40:15,707 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_true-unreach-call.c.i.v+cfa-reducer.c [2018-10-23 09:40:15,786 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3e06f5ac6/ac98a838f43c4ddcab27146bed945080/FLAGdd8bc3c33 [2018-10-23 09:40:16,242 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 09:40:16,243 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_true-unreach-call.c.i.v+cfa-reducer.c [2018-10-23 09:40:16,249 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3e06f5ac6/ac98a838f43c4ddcab27146bed945080/FLAGdd8bc3c33 [2018-10-23 09:40:16,263 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3e06f5ac6/ac98a838f43c4ddcab27146bed945080 [2018-10-23 09:40:16,273 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 09:40:16,274 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 09:40:16,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 09:40:16,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 09:40:16,279 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 09:40:16,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:40:16" (1/1) ... [2018-10-23 09:40:16,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74b59c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16, skipping insertion in model container [2018-10-23 09:40:16,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:40:16" (1/1) ... [2018-10-23 09:40:16,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 09:40:16,319 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 09:40:16,519 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 09:40:16,526 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 09:40:16,549 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 09:40:16,570 INFO L193 MainTranslator]: Completed translation [2018-10-23 09:40:16,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16 WrapperNode [2018-10-23 09:40:16,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 09:40:16,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 09:40:16,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 09:40:16,573 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 09:40:16,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16" (1/1) ... [2018-10-23 09:40:16,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16" (1/1) ... [2018-10-23 09:40:16,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 09:40:16,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 09:40:16,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 09:40:16,614 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 09:40:16,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16" (1/1) ... [2018-10-23 09:40:16,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16" (1/1) ... [2018-10-23 09:40:16,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16" (1/1) ... [2018-10-23 09:40:16,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16" (1/1) ... [2018-10-23 09:40:16,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16" (1/1) ... [2018-10-23 09:40:16,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16" (1/1) ... [2018-10-23 09:40:16,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16" (1/1) ... [2018-10-23 09:40:16,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 09:40:16,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 09:40:16,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 09:40:16,632 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 09:40:16,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16" (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 09:40:16,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 09:40:16,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 09:40:17,009 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 09:40:17,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:40:17 BoogieIcfgContainer [2018-10-23 09:40:17,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 09:40:17,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 09:40:17,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 09:40:17,016 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 09:40:17,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:40:16" (1/3) ... [2018-10-23 09:40:17,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35cfde6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:40:17, skipping insertion in model container [2018-10-23 09:40:17,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:40:16" (2/3) ... [2018-10-23 09:40:17,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35cfde6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:40:17, skipping insertion in model container [2018-10-23 09:40:17,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:40:17" (3/3) ... [2018-10-23 09:40:17,026 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006_true-unreach-call.c.i.v+cfa-reducer.c [2018-10-23 09:40:17,047 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 09:40:17,066 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 09:40:17,101 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 09:40:17,147 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 09:40:17,148 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 09:40:17,148 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 09:40:17,149 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 09:40:17,149 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 09:40:17,149 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 09:40:17,149 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 09:40:17,149 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 09:40:17,150 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 09:40:17,167 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-10-23 09:40:17,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-23 09:40:17,175 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:40:17,176 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:40:17,178 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:40:17,186 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:40:17,186 INFO L82 PathProgramCache]: Analyzing trace with hash 179596396, now seen corresponding path program 1 times [2018-10-23 09:40:17,188 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:40:17,189 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:40:17,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:40:17,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:40:17,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:40:17,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:40:17,466 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 16 [2018-10-23 09:40:17,598 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 14 [2018-10-23 09:40:17,618 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 09:40:17,621 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 09:40:17,621 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 09:40:17,626 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 09:40:17,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 09:40:17,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-23 09:40:17,641 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 5 states. [2018-10-23 09:40:18,076 WARN L179 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-10-23 09:40:18,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:40:18,103 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2018-10-23 09:40:18,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 09:40:18,105 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2018-10-23 09:40:18,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:40:18,114 INFO L225 Difference]: With dead ends: 26 [2018-10-23 09:40:18,115 INFO L226 Difference]: Without dead ends: 10 [2018-10-23 09:40:18,118 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-23 09:40:18,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-10-23 09:40:18,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-10-23 09:40:18,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-10-23 09:40:18,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-10-23 09:40:18,151 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-10-23 09:40:18,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:40:18,152 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-10-23 09:40:18,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 09:40:18,152 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-10-23 09:40:18,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-23 09:40:18,153 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:40:18,153 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:40:18,153 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:40:18,154 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:40:18,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1270581676, now seen corresponding path program 1 times [2018-10-23 09:40:18,154 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:40:18,154 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:40:18,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:40:18,156 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:40:18,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:40:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:40:18,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 09:40:18,453 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 09:40:18,453 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) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 09:40:18,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:40:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:40:18,512 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 09:40:18,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 09:40:18,718 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 09:40:18,718 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-10-23 09:40:18,719 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-23 09:40:18,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-23 09:40:18,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-10-23 09:40:18,720 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 9 states. [2018-10-23 09:40:19,257 WARN L179 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-10-23 09:40:19,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:40:19,259 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2018-10-23 09:40:19,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-23 09:40:19,260 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 9 [2018-10-23 09:40:19,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:40:19,260 INFO L225 Difference]: With dead ends: 13 [2018-10-23 09:40:19,261 INFO L226 Difference]: Without dead ends: 0 [2018-10-23 09:40:19,262 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2018-10-23 09:40:19,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-23 09:40:19,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-23 09:40:19,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-23 09:40:19,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-23 09:40:19,263 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-10-23 09:40:19,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:40:19,264 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-23 09:40:19,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-23 09:40:19,264 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-23 09:40:19,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-23 09:40:19,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-23 09:40:19,341 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-23 09:40:19,341 INFO L428 ceAbstractionStarter]: At program point L60(lines 8 65) the Hoare annotation is: true [2018-10-23 09:40:19,342 INFO L425 ceAbstractionStarter]: For program point L48(line 48) no Hoare annotation was computed. [2018-10-23 09:40:19,342 INFO L425 ceAbstractionStarter]: For program point L46(lines 46 55) no Hoare annotation was computed. [2018-10-23 09:40:19,342 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2018-10-23 09:40:19,342 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-23 09:40:19,342 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-23 09:40:19,342 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-23 09:40:19,342 INFO L425 ceAbstractionStarter]: For program point L20(lines 20 63) no Hoare annotation was computed. [2018-10-23 09:40:19,343 INFO L425 ceAbstractionStarter]: For program point L14(lines 14 64) no Hoare annotation was computed. [2018-10-23 09:40:19,343 INFO L425 ceAbstractionStarter]: For program point L39(lines 39 61) no Hoare annotation was computed. [2018-10-23 09:40:19,343 INFO L421 ceAbstractionStarter]: At program point L35(lines 25 63) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__y~0)) (.cse0 (+ ULTIMATE.start_main_~main__x~0 ULTIMATE.start_main_~main__j~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2018-10-23 09:40:19,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:40:19 BoogieIcfgContainer [2018-10-23 09:40:19,359 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 09:40:19,360 INFO L168 Benchmark]: Toolchain (without parser) took 3086.36 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 760.7 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -710.6 MB). Peak memory consumption was 50.1 MB. Max. memory is 7.1 GB. [2018-10-23 09:40:19,361 INFO L168 Benchmark]: CDTParser took 0.39 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 09:40:19,362 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.85 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 09:40:19,363 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.86 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 09:40:19,364 INFO L168 Benchmark]: Boogie Preprocessor took 17.60 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 09:40:19,364 INFO L168 Benchmark]: RCFGBuilder took 378.26 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 760.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -813.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-10-23 09:40:19,366 INFO L168 Benchmark]: TraceAbstraction took 2348.19 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: 92.6 MB). Peak memory consumption was 92.6 MB. Max. memory is 7.1 GB. [2018-10-23 09:40:19,371 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 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 295.85 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 41.86 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 17.60 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 378.26 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 760.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -813.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2348.19 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: 92.6 MB). Peak memory consumption was 92.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: 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: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: main__x + main__j <= main__i + main__y && main__i + main__y <= main__x + main__j - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 18 SDtfs, 23 SDslu, 29 SDs, 0 SdLazy, 55 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 16 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 43 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 1187 SizeOfPredicates, 6 NumberOfNonLiveVariables, 36 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...