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/Problem19_label53_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:47:15,551 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:47:15,555 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:47:15,572 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:47:15,572 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:47:15,573 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:47:15,576 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:47:15,578 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:47:15,586 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:47:15,587 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:47:15,591 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:47:15,592 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:47:15,596 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:47:15,597 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:47:15,598 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:47:15,599 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:47:15,600 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:47:15,603 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:47:15,607 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:47:15,611 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:47:15,612 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:47:15,613 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:47:15,616 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 14:47:15,616 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 14:47:15,616 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 14:47:15,619 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 14:47:15,620 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 14:47:15,621 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 14:47:15,622 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 14:47:15,623 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 14:47:15,623 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 14:47:15,624 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 14:47:15,624 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 14:47:15,624 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 14:47:15,625 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 14:47:15,626 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 14:47:15,626 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 14:47:15,647 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:47:15,647 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:47:15,648 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:47:15,648 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:47:15,649 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:47:15,649 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:47:15,649 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:47:15,650 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:47:15,650 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:47:15,650 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:47:15,650 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:47:15,650 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:47:15,651 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:47:15,651 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:47:15,651 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:47:15,651 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:47:15,651 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:47:15,652 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:47:15,652 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:47:15,652 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:47:15,652 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:47:15,652 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:47:15,653 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:47:15,653 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:47:15,653 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:47:15,653 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:47:15,653 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:47:15,653 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:47:15,696 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:47:15,709 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:47:15,713 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:47:15,714 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:47:15,715 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:47:15,716 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label53_false-unreach-call.c [2018-10-24 14:47:15,776 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f44a41eb0/bc29c9ddd5eb4ef1a1c951dc5cbb321e/FLAG15a794cfc [2018-10-24 14:47:16,629 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:47:16,630 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label53_false-unreach-call.c [2018-10-24 14:47:16,679 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f44a41eb0/bc29c9ddd5eb4ef1a1c951dc5cbb321e/FLAG15a794cfc [2018-10-24 14:47:16,700 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f44a41eb0/bc29c9ddd5eb4ef1a1c951dc5cbb321e [2018-10-24 14:47:16,713 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:47:16,716 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:47:16,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:47:16,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:47:16,724 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:47:16,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:47:16" (1/1) ... [2018-10-24 14:47:16,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46764b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:16, skipping insertion in model container [2018-10-24 14:47:16,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:47:16" (1/1) ... [2018-10-24 14:47:16,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:47:16,996 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:47:18,879 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:47:18,886 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:47:19,928 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:47:19,986 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:47:19,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:19 WrapperNode [2018-10-24 14:47:19,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:47:19,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:47:19,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:47:19,989 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:47:19,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:19" (1/1) ... [2018-10-24 14:47:20,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:19" (1/1) ... [2018-10-24 14:47:21,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:47:21,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:47:21,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:47:21,131 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:47:21,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:19" (1/1) ... [2018-10-24 14:47:21,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:19" (1/1) ... [2018-10-24 14:47:21,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:19" (1/1) ... [2018-10-24 14:47:21,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:19" (1/1) ... [2018-10-24 14:47:21,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:19" (1/1) ... [2018-10-24 14:47:21,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:19" (1/1) ... [2018-10-24 14:47:21,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:19" (1/1) ... [2018-10-24 14:47:22,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:47:22,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:47:22,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:47:22,154 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:47:22,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:19" (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 14:47:22,224 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:47:22,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:47:22,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:47:39,008 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:47:39,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:47:39 BoogieIcfgContainer [2018-10-24 14:47:39,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:47:39,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:47:39,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:47:39,014 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:47:39,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:47:16" (1/3) ... [2018-10-24 14:47:39,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3b2c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:47:39, skipping insertion in model container [2018-10-24 14:47:39,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:19" (2/3) ... [2018-10-24 14:47:39,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3b2c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:47:39, skipping insertion in model container [2018-10-24 14:47:39,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:47:39" (3/3) ... [2018-10-24 14:47:39,019 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label53_false-unreach-call.c [2018-10-24 14:47:39,029 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:47:39,041 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:47:39,058 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:47:39,117 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:47:39,118 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:47:39,118 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:47:39,118 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:47:39,118 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:47:39,119 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:47:39,119 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:47:39,119 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:47:39,119 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:47:39,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-24 14:47:39,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-24 14:47:39,192 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:47:39,194 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:47:39,196 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:47:39,204 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:47:39,205 INFO L82 PathProgramCache]: Analyzing trace with hash -643220670, now seen corresponding path program 1 times [2018-10-24 14:47:39,207 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:47:39,207 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:47:39,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:39,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:47:39,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:47:39,539 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 14:47:39,542 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:47:39,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:47:39,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:47:39,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:47:39,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:47:39,566 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-24 14:48:01,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:48:01,987 INFO L93 Difference]: Finished difference Result 6406 states and 12224 transitions. [2018-10-24 14:48:01,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:48:01,990 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-10-24 14:48:01,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:48:02,053 INFO L225 Difference]: With dead ends: 6406 [2018-10-24 14:48:02,054 INFO L226 Difference]: Without dead ends: 4650 [2018-10-24 14:48:02,065 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:48:02,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4650 states. [2018-10-24 14:48:02,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4650 to 4611. [2018-10-24 14:48:02,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4611 states. [2018-10-24 14:48:02,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4611 states to 4611 states and 7301 transitions. [2018-10-24 14:48:02,289 INFO L78 Accepts]: Start accepts. Automaton has 4611 states and 7301 transitions. Word has length 12 [2018-10-24 14:48:02,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:48:02,290 INFO L481 AbstractCegarLoop]: Abstraction has 4611 states and 7301 transitions. [2018-10-24 14:48:02,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:48:02,290 INFO L276 IsEmpty]: Start isEmpty. Operand 4611 states and 7301 transitions. [2018-10-24 14:48:02,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-10-24 14:48:02,293 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:48:02,294 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:48:02,294 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:48:02,294 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:48:02,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1197814694, now seen corresponding path program 1 times [2018-10-24 14:48:02,295 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:48:02,295 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:48:02,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:02,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:48:02,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:48:02,726 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-24 14:48:03,366 WARN L179 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2018-10-24 14:48:03,624 WARN L179 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-10-24 14:48:03,797 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:48:03,798 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:48:03,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 14:48:03,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:48:03,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:48:03,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:48:03,800 INFO L87 Difference]: Start difference. First operand 4611 states and 7301 transitions. Second operand 6 states. [2018-10-24 14:48:37,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:48:37,566 INFO L93 Difference]: Finished difference Result 20180 states and 30824 transitions. [2018-10-24 14:48:37,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 14:48:37,567 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2018-10-24 14:48:37,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:48:37,638 INFO L225 Difference]: With dead ends: 20180 [2018-10-24 14:48:37,638 INFO L226 Difference]: Without dead ends: 15571 [2018-10-24 14:48:37,647 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:48:37,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15571 states. [2018-10-24 14:48:37,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15571 to 14198. [2018-10-24 14:48:37,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14198 states. [2018-10-24 14:48:37,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14198 states to 14198 states and 18990 transitions. [2018-10-24 14:48:37,929 INFO L78 Accepts]: Start accepts. Automaton has 14198 states and 18990 transitions. Word has length 80 [2018-10-24 14:48:37,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:48:37,930 INFO L481 AbstractCegarLoop]: Abstraction has 14198 states and 18990 transitions. [2018-10-24 14:48:37,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:48:37,931 INFO L276 IsEmpty]: Start isEmpty. Operand 14198 states and 18990 transitions. [2018-10-24 14:48:37,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2018-10-24 14:48:37,950 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:48:37,951 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:48:37,952 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:48:37,956 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:48:37,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1236507099, now seen corresponding path program 1 times [2018-10-24 14:48:37,956 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:48:37,957 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:48:37,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:37,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:48:37,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:38,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:48:38,987 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-10-24 14:48:38,987 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:48:38,987 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 14:48:38,991 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 14:48:38,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 14:48:38,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:48:38,992 INFO L87 Difference]: Start difference. First operand 14198 states and 18990 transitions. Second operand 7 states. [2018-10-24 14:49:20,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:49:20,770 INFO L93 Difference]: Finished difference Result 42065 states and 56298 transitions. [2018-10-24 14:49:20,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 14:49:20,771 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 288 [2018-10-24 14:49:20,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:49:20,847 INFO L225 Difference]: With dead ends: 42065 [2018-10-24 14:49:20,847 INFO L226 Difference]: Without dead ends: 27869 [2018-10-24 14:49:20,862 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-24 14:49:20,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27869 states. [2018-10-24 14:49:21,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27869 to 25134. [2018-10-24 14:49:21,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25134 states. [2018-10-24 14:49:21,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25134 states to 25134 states and 30401 transitions. [2018-10-24 14:49:21,327 INFO L78 Accepts]: Start accepts. Automaton has 25134 states and 30401 transitions. Word has length 288 [2018-10-24 14:49:21,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:49:21,328 INFO L481 AbstractCegarLoop]: Abstraction has 25134 states and 30401 transitions. [2018-10-24 14:49:21,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 14:49:21,328 INFO L276 IsEmpty]: Start isEmpty. Operand 25134 states and 30401 transitions. [2018-10-24 14:49:21,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2018-10-24 14:49:21,332 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:49:21,332 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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 14:49:21,333 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:49:21,333 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:49:21,333 INFO L82 PathProgramCache]: Analyzing trace with hash 384929983, now seen corresponding path program 1 times [2018-10-24 14:49:21,333 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:49:21,334 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:49:21,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:21,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:49:21,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:49:21,864 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 19 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:49:21,864 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:49:21,865 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 14:49:21,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:49:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:49:22,052 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:49:22,263 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:49:22,298 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:49:22,299 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-24 14:49:22,301 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:49:22,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:49:22,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:49:22,301 INFO L87 Difference]: Start difference. First operand 25134 states and 30401 transitions. Second operand 5 states. [2018-10-24 14:49:59,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:49:59,454 INFO L93 Difference]: Finished difference Result 114900 states and 149450 transitions. [2018-10-24 14:49:59,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 14:49:59,461 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 316 [2018-10-24 14:49:59,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:49:59,628 INFO L225 Difference]: With dead ends: 114900 [2018-10-24 14:49:59,628 INFO L226 Difference]: Without dead ends: 80202 [2018-10-24 14:49:59,671 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:49:59,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80202 states. [2018-10-24 14:50:00,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80202 to 80104. [2018-10-24 14:50:00,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80104 states. [2018-10-24 14:50:00,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80104 states to 80104 states and 93292 transitions. [2018-10-24 14:50:00,827 INFO L78 Accepts]: Start accepts. Automaton has 80104 states and 93292 transitions. Word has length 316 [2018-10-24 14:50:00,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:50:00,828 INFO L481 AbstractCegarLoop]: Abstraction has 80104 states and 93292 transitions. [2018-10-24 14:50:00,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:50:00,829 INFO L276 IsEmpty]: Start isEmpty. Operand 80104 states and 93292 transitions. [2018-10-24 14:50:00,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2018-10-24 14:50:00,835 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:50:00,836 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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 14:50:00,836 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:50:00,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:50:00,836 INFO L82 PathProgramCache]: Analyzing trace with hash -68376009, now seen corresponding path program 1 times [2018-10-24 14:50:00,837 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:50:00,837 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:50:00,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:50:00,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:50:00,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:50:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:50:01,429 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-24 14:50:01,430 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:50:01,430 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 [2018-10-24 14:50:01,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:50:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:50:01,540 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:50:01,968 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:50:01,989 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:50:01,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 14:50:01,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:50:01,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:50:01,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:50:01,991 INFO L87 Difference]: Start difference. First operand 80104 states and 93292 transitions. Second operand 4 states. [2018-10-24 14:50:26,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:50:26,626 INFO L93 Difference]: Finished difference Result 286225 states and 337230 transitions. [2018-10-24 14:50:26,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:50:26,626 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 326 [2018-10-24 14:50:26,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:50:26,966 INFO L225 Difference]: With dead ends: 286225 [2018-10-24 14:50:26,966 INFO L226 Difference]: Without dead ends: 207489 [2018-10-24 14:50:27,021 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:50:27,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207489 states. [2018-10-24 14:50:28,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207489 to 133370. [2018-10-24 14:50:28,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133370 states. [2018-10-24 14:50:28,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133370 states to 133370 states and 154665 transitions. [2018-10-24 14:50:28,839 INFO L78 Accepts]: Start accepts. Automaton has 133370 states and 154665 transitions. Word has length 326 [2018-10-24 14:50:28,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:50:28,840 INFO L481 AbstractCegarLoop]: Abstraction has 133370 states and 154665 transitions. [2018-10-24 14:50:28,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:50:28,840 INFO L276 IsEmpty]: Start isEmpty. Operand 133370 states and 154665 transitions. [2018-10-24 14:50:28,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2018-10-24 14:50:28,859 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:50:28,860 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:50:28,860 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:50:28,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:50:28,860 INFO L82 PathProgramCache]: Analyzing trace with hash 483961052, now seen corresponding path program 1 times [2018-10-24 14:50:28,861 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:50:28,861 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:50:28,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:50:28,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:50:28,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:50:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:50:29,913 WARN L179 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-10-24 14:50:30,585 WARN L179 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 22 [2018-10-24 14:50:31,714 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 421 proven. 4 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2018-10-24 14:50:31,714 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:50:31,714 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 [2018-10-24 14:50:31,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:50:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:50:31,894 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:50:32,178 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 425 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2018-10-24 14:50:32,199 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:50:32,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-24 14:50:32,200 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:50:32,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:50:32,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:50:32,201 INFO L87 Difference]: Start difference. First operand 133370 states and 154665 transitions. Second operand 5 states. [2018-10-24 14:50:53,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:50:53,888 INFO L93 Difference]: Finished difference Result 287231 states and 331289 transitions. [2018-10-24 14:50:53,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 14:50:53,889 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 629 [2018-10-24 14:50:53,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:50:54,091 INFO L225 Difference]: With dead ends: 287231 [2018-10-24 14:50:54,092 INFO L226 Difference]: Without dead ends: 148394 [2018-10-24 14:50:54,182 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 629 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:50:54,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148394 states. [2018-10-24 14:50:55,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148394 to 134722. [2018-10-24 14:50:55,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134722 states. [2018-10-24 14:50:55,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134722 states to 134722 states and 147923 transitions. [2018-10-24 14:50:55,661 INFO L78 Accepts]: Start accepts. Automaton has 134722 states and 147923 transitions. Word has length 629 [2018-10-24 14:50:55,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:50:55,662 INFO L481 AbstractCegarLoop]: Abstraction has 134722 states and 147923 transitions. [2018-10-24 14:50:55,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:50:55,662 INFO L276 IsEmpty]: Start isEmpty. Operand 134722 states and 147923 transitions. [2018-10-24 14:50:55,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2018-10-24 14:50:55,692 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:50:55,693 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:50:55,693 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:50:55,693 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:50:55,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1788119869, now seen corresponding path program 1 times [2018-10-24 14:50:55,694 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:50:55,694 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:50:55,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:50:55,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:50:55,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:50:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:50:57,287 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2018-10-24 14:50:57,287 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:50:57,288 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:50:57,288 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:50:57,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:50:57,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:50:57,289 INFO L87 Difference]: Start difference. First operand 134722 states and 147923 transitions. Second operand 4 states. [2018-10-24 14:51:14,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:51:14,166 INFO L93 Difference]: Finished difference Result 360983 states and 397610 transitions. [2018-10-24 14:51:14,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:51:14,166 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 881 [2018-10-24 14:51:14,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:51:14,409 INFO L225 Difference]: With dead ends: 360983 [2018-10-24 14:51:14,409 INFO L226 Difference]: Without dead ends: 211207 [2018-10-24 14:51:14,495 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 Received shutdown request... [2018-10-24 14:51:14,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211207 states. [2018-10-24 14:51:14,649 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:51:14,653 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:51:14,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:51:14 BoogieIcfgContainer [2018-10-24 14:51:14,653 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:51:14,654 INFO L168 Benchmark]: Toolchain (without parser) took 237940.07 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -700.6 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-24 14:51:14,655 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-10-24 14:51:14,656 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3270.20 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. [2018-10-24 14:51:14,656 INFO L168 Benchmark]: Boogie Procedure Inliner took 1141.66 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 875.6 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.2 MB. Max. memory is 7.1 GB. [2018-10-24 14:51:14,658 INFO L168 Benchmark]: Boogie Preprocessor took 1023.26 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 112.7 MB). Peak memory consumption was 112.7 MB. Max. memory is 7.1 GB. [2018-10-24 14:51:14,659 INFO L168 Benchmark]: RCFGBuilder took 16855.71 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 288.9 MB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -382.6 MB). Peak memory consumption was 846.0 MB. Max. memory is 7.1 GB. [2018-10-24 14:51:14,660 INFO L168 Benchmark]: TraceAbstraction took 215642.60 ms. Allocated memory was 2.7 GB in the beginning and 4.0 GB in the end (delta: 1.3 GB). Free memory was 2.4 GB in the beginning and 2.1 GB in the end (delta: 336.6 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-10-24 14:51:14,665 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3270.20 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1141.66 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 875.6 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1023.26 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 112.7 MB). Peak memory consumption was 112.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 16855.71 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 288.9 MB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -382.6 MB). Peak memory consumption was 846.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215642.60 ms. Allocated memory was 2.7 GB in the beginning and 4.0 GB in the end (delta: 1.3 GB). Free memory was 2.4 GB in the beginning and 2.1 GB in the end (delta: 336.6 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 49). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 215.5s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 199.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9334 SDtfs, 42834 SDslu, 3952 SDs, 0 SdLazy, 92259 SolverSat, 19447 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 168.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1317 GetRequests, 1278 SyntacticMatches, 10 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134722occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 5.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 92036 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 3803 NumberOfCodeBlocks, 3803 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 3793 ConstructedInterpolants, 0 QuantifiedInterpolants, 6901666 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1565 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 2087/2160 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown