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/eca-rers2012/Problem17_label09_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:28:40,742 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:28:40,745 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:28:40,763 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:28:40,764 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:28:40,767 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:28:40,769 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:28:40,771 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:28:40,774 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:28:40,774 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:28:40,776 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:28:40,777 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:28:40,778 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:28:40,779 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:28:40,780 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:28:40,781 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:28:40,782 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:28:40,784 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:28:40,786 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:28:40,787 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:28:40,789 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:28:40,790 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:28:40,792 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 14:28:40,792 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 14:28:40,793 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 14:28:40,793 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 14:28:40,794 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 14:28:40,795 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 14:28:40,796 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 14:28:40,797 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 14:28:40,797 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 14:28:40,798 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 14:28:40,798 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 14:28:40,799 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 14:28:40,799 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 14:28:40,800 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 14:28:40,801 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 [2018-10-24 14:28:40,826 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:28:40,826 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:28:40,827 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:28:40,827 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:28:40,828 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:28:40,828 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:28:40,828 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:28:40,829 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:28:40,829 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:28:40,829 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:28:40,829 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:28:40,829 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:28:40,830 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:28:40,831 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:28:40,831 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:28:40,831 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:28:40,831 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:28:40,831 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:28:40,832 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:28:40,832 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:28:40,832 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:28:40,832 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:28:40,833 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:28:40,834 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:28:40,834 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:28:40,834 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:28:40,834 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:28:40,835 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:28:40,907 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:28:40,925 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:28:40,929 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:28:40,932 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:28:40,932 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:28:40,933 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label09_false-unreach-call.c [2018-10-24 14:28:40,991 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5efcbeff8/f34fb75e20c3447d9bd6af13ce4c506a/FLAGe635f29c5 [2018-10-24 14:28:41,689 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:28:41,690 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label09_false-unreach-call.c [2018-10-24 14:28:41,720 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5efcbeff8/f34fb75e20c3447d9bd6af13ce4c506a/FLAGe635f29c5 [2018-10-24 14:28:41,738 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5efcbeff8/f34fb75e20c3447d9bd6af13ce4c506a [2018-10-24 14:28:41,752 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:28:41,754 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:28:41,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:28:41,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:28:41,762 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:28:41,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:28:41" (1/1) ... [2018-10-24 14:28:41,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71b5ccc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:41, skipping insertion in model container [2018-10-24 14:28:41,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:28:41" (1/1) ... [2018-10-24 14:28:41,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:28:41,918 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:28:42,912 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:28:42,917 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:28:43,344 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:28:43,369 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:28:43,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:43 WrapperNode [2018-10-24 14:28:43,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:28:43,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:28:43,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:28:43,372 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:28:43,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:43" (1/1) ... [2018-10-24 14:28:43,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:43" (1/1) ... [2018-10-24 14:28:43,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:28:43,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:28:43,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:28:43,994 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:28:44,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:43" (1/1) ... [2018-10-24 14:28:44,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:43" (1/1) ... [2018-10-24 14:28:44,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:43" (1/1) ... [2018-10-24 14:28:44,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:43" (1/1) ... [2018-10-24 14:28:44,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:43" (1/1) ... [2018-10-24 14:28:44,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:43" (1/1) ... [2018-10-24 14:28:44,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:43" (1/1) ... [2018-10-24 14:28:44,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:28:44,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:28:44,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:28:44,337 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:28:44,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:43" (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 [2018-10-24 14:28:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:28:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:28:44,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:28:53,222 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:28:53,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:28:53 BoogieIcfgContainer [2018-10-24 14:28:53,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:28:53,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:28:53,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:28:53,228 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:28:53,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:28:41" (1/3) ... [2018-10-24 14:28:53,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bfd35e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:28:53, skipping insertion in model container [2018-10-24 14:28:53,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:28:43" (2/3) ... [2018-10-24 14:28:53,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bfd35e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:28:53, skipping insertion in model container [2018-10-24 14:28:53,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:28:53" (3/3) ... [2018-10-24 14:28:53,233 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label09_false-unreach-call.c [2018-10-24 14:28:53,243 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:28:53,252 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:28:53,271 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:28:53,317 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:28:53,318 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:28:53,318 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:28:53,318 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:28:53,318 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:28:53,319 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:28:53,319 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:28:53,319 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:28:53,319 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:28:53,351 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states. [2018-10-24 14:28:53,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-24 14:28:53,358 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:28:53,359 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:28:53,364 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:28:53,371 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:28:53,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1534999810, now seen corresponding path program 1 times [2018-10-24 14:28:53,374 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:28:53,374 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:28:53,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:28:53,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:28:53,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:28:53,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:28:53,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:28:53,657 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:28:53,657 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 14:28:53,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:28:53,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:28:53,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:28:53,677 INFO L87 Difference]: Start difference. First operand 591 states. Second operand 3 states. [2018-10-24 14:29:00,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:29:00,559 INFO L93 Difference]: Finished difference Result 1645 states and 3027 transitions. [2018-10-24 14:29:00,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:29:00,562 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-10-24 14:29:00,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:29:00,589 INFO L225 Difference]: With dead ends: 1645 [2018-10-24 14:29:00,590 INFO L226 Difference]: Without dead ends: 1050 [2018-10-24 14:29:00,596 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:29:00,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2018-10-24 14:29:00,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 1047. [2018-10-24 14:29:00,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1047 states. [2018-10-24 14:29:00,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1612 transitions. [2018-10-24 14:29:00,699 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1612 transitions. Word has length 13 [2018-10-24 14:29:00,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:29:00,701 INFO L481 AbstractCegarLoop]: Abstraction has 1047 states and 1612 transitions. [2018-10-24 14:29:00,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:29:00,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1612 transitions. [2018-10-24 14:29:00,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-10-24 14:29:00,704 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:29:00,706 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:29:00,706 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:29:00,706 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:29:00,707 INFO L82 PathProgramCache]: Analyzing trace with hash 597877078, now seen corresponding path program 1 times [2018-10-24 14:29:00,707 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:29:00,708 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:29:00,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:29:00,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:29:00,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:29:00,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:29:01,095 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:29:01,096 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:29:01,096 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 [2018-10-24 14:29:01,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:29:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:29:01,167 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:29:17,733 WARN L179 SmtUtils]: Spent 16.35 s on a formula simplification. DAG size of input: 135 DAG size of output: 73 [2018-10-24 14:29:17,907 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:29:17,946 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:29:17,947 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-24 14:29:17,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 14:29:17,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 14:29:17,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:29:17,950 INFO L87 Difference]: Start difference. First operand 1047 states and 1612 transitions. Second operand 7 states. [2018-10-24 14:29:18,166 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-24 14:29:27,533 WARN L179 SmtUtils]: Spent 8.08 s on a formula simplification that was a NOOP. DAG size: 78 [2018-10-24 14:29:45,584 WARN L179 SmtUtils]: Spent 8.06 s on a formula simplification that was a NOOP. DAG size: 78 Received shutdown request... [2018-10-24 14:33:15,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-24 14:33:15,748 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:33:15,754 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:33:15,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:33:15 BoogieIcfgContainer [2018-10-24 14:33:15,755 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:33:15,756 INFO L168 Benchmark]: Toolchain (without parser) took 274003.06 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.1 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -972.9 MB). Peak memory consumption was 101.9 MB. Max. memory is 7.1 GB. [2018-10-24 14:33:15,757 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-10-24 14:33:15,758 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1614.42 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-24 14:33:15,758 INFO L168 Benchmark]: Boogie Procedure Inliner took 622.06 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 778.6 MB). Free memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: -895.6 MB). Peak memory consumption was 56.2 MB. Max. memory is 7.1 GB. [2018-10-24 14:33:15,760 INFO L168 Benchmark]: Boogie Preprocessor took 342.71 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 7.1 GB. [2018-10-24 14:33:15,760 INFO L168 Benchmark]: RCFGBuilder took 8886.62 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 458.7 MB). Peak memory consumption was 458.7 MB. Max. memory is 7.1 GB. [2018-10-24 14:33:15,761 INFO L168 Benchmark]: TraceAbstraction took 262530.22 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 296.2 MB). Free memory was 1.6 GB in the beginning and 2.4 GB in the end (delta: -717.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 14:33:15,770 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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. * CACSL2BoogieTranslator took 1614.42 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 622.06 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 778.6 MB). Free memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: -895.6 MB). Peak memory consumption was 56.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 342.71 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8886.62 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 458.7 MB). Peak memory consumption was 458.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 262530.22 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 296.2 MB). Free memory was 1.6 GB in the beginning and 2.4 GB in the end (delta: -717.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 44]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 44). Cancelled while BasicCegarLoop was constructing difference of abstraction (1047states) and FLOYD_HOARE automaton (currently 11 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (5528 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 591 locations, 1 error locations. TIMEOUT Result, 262.4s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 244.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 974 SDtfs, 3651 SDslu, 727 SDs, 0 SdLazy, 8883 SolverSat, 1579 SolverUnsat, 96 SolverUnknown, 0 SolverNotchecked, 225.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 33.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1047occurred in iteration=1, 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, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 17.1s InterpolantComputationTime, 181 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 178 ConstructedInterpolants, 11 QuantifiedInterpolants, 232808 SizeOfPredicates, 1 NumberOfNonLiveVariables, 147 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 10/20 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown