java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-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_label54_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 19:33:28,471 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 19:33:28,476 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 19:33:28,496 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 19:33:28,496 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 19:33:28,497 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 19:33:28,499 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 19:33:28,502 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 19:33:28,505 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 19:33:28,508 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 19:33:28,510 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 19:33:28,510 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 19:33:28,511 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 19:33:28,514 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 19:33:28,517 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 19:33:28,518 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 19:33:28,520 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 19:33:28,527 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 19:33:28,529 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 19:33:28,534 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 19:33:28,540 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 19:33:28,541 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 19:33:28,546 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 19:33:28,546 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 19:33:28,547 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 19:33:28,548 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 19:33:28,549 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 19:33:28,553 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 19:33:28,554 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 19:33:28,557 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 19:33:28,557 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 19:33:28,558 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-06 19:33:28,562 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 19:33:28,590 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 19:33:28,591 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 19:33:28,592 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 19:33:28,592 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 19:33:28,593 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 19:33:28,593 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 19:33:28,594 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 19:33:28,595 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 19:33:28,595 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 19:33:28,595 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 19:33:28,596 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 19:33:28,596 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 19:33:28,596 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 19:33:28,596 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 19:33:28,597 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 19:33:28,597 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 19:33:28,597 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 19:33:28,597 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 19:33:28,598 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 19:33:28,598 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 19:33:28,598 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 19:33:28,599 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 19:33:28,599 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 19:33:28,599 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 19:33:28,599 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 19:33:28,599 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 19:33:28,601 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 19:33:28,601 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 19:33:28,662 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 19:33:28,675 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 19:33:28,679 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 19:33:28,681 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 19:33:28,681 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 19:33:28,682 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label54_false-unreach-call.c [2018-11-06 19:33:28,744 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7260460c/832c672992114e86b423c621c4a45054/FLAG4c220efbf [2018-11-06 19:33:29,509 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 19:33:29,510 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label54_false-unreach-call.c [2018-11-06 19:33:29,532 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7260460c/832c672992114e86b423c621c4a45054/FLAG4c220efbf [2018-11-06 19:33:29,549 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7260460c/832c672992114e86b423c621c4a45054 [2018-11-06 19:33:29,562 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 19:33:29,564 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 19:33:29,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 19:33:29,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 19:33:29,571 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 19:33:29,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:33:29" (1/1) ... [2018-11-06 19:33:29,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@687246ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:33:29, skipping insertion in model container [2018-11-06 19:33:29,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:33:29" (1/1) ... [2018-11-06 19:33:29,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 19:33:29,724 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 19:33:30,839 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:33:30,848 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 19:33:31,238 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:33:31,262 INFO L193 MainTranslator]: Completed translation [2018-11-06 19:33:31,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:33:31 WrapperNode [2018-11-06 19:33:31,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 19:33:31,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 19:33:31,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 19:33:31,265 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 19:33:31,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:33:31" (1/1) ... [2018-11-06 19:33:31,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:33:31" (1/1) ... [2018-11-06 19:33:31,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 19:33:31,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 19:33:31,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 19:33:31,770 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 19:33:31,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:33:31" (1/1) ... [2018-11-06 19:33:31,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:33:31" (1/1) ... [2018-11-06 19:33:31,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:33:31" (1/1) ... [2018-11-06 19:33:31,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:33:31" (1/1) ... [2018-11-06 19:33:31,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:33:31" (1/1) ... [2018-11-06 19:33:31,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:33:31" (1/1) ... [2018-11-06 19:33:31,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:33:31" (1/1) ... [2018-11-06 19:33:31,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 19:33:31,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 19:33:31,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 19:33:32,000 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 19:33:32,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:33:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 19:33:32,069 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 19:33:32,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 19:33:32,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 19:33:42,174 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 19:33:42,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:33:42 BoogieIcfgContainer [2018-11-06 19:33:42,175 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 19:33:42,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 19:33:42,177 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 19:33:42,180 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 19:33:42,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:33:29" (1/3) ... [2018-11-06 19:33:42,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73febaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:33:42, skipping insertion in model container [2018-11-06 19:33:42,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:33:31" (2/3) ... [2018-11-06 19:33:42,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73febaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:33:42, skipping insertion in model container [2018-11-06 19:33:42,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:33:42" (3/3) ... [2018-11-06 19:33:42,186 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label54_false-unreach-call.c [2018-11-06 19:33:42,197 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 19:33:42,211 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 19:33:42,230 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 19:33:42,275 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 19:33:42,276 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 19:33:42,276 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 19:33:42,276 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 19:33:42,277 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 19:33:42,277 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 19:33:42,277 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 19:33:42,277 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 19:33:42,277 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 19:33:42,311 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states. [2018-11-06 19:33:42,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-06 19:33:42,318 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:33:42,319 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:33:42,322 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:33:42,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:33:42,328 INFO L82 PathProgramCache]: Analyzing trace with hash 340357962, now seen corresponding path program 1 times [2018-11-06 19:33:42,331 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:33:42,331 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:33:42,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:33:42,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:33:42,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:33:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:33:42,751 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-11-06 19:33:42,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:33:42,758 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:33:42,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:33:42,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:33:42,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:33:42,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:33:42,784 INFO L87 Difference]: Start difference. First operand 591 states. Second operand 4 states. [2018-11-06 19:33:50,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:33:50,868 INFO L93 Difference]: Finished difference Result 2097 states and 3909 transitions. [2018-11-06 19:33:50,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:33:50,871 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-11-06 19:33:50,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:33:50,904 INFO L225 Difference]: With dead ends: 2097 [2018-11-06 19:33:50,904 INFO L226 Difference]: Without dead ends: 1499 [2018-11-06 19:33:50,912 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:33:50,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2018-11-06 19:33:51,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1485. [2018-11-06 19:33:51,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1485 states. [2018-11-06 19:33:51,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 2304 transitions. [2018-11-06 19:33:51,052 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 2304 transitions. Word has length 14 [2018-11-06 19:33:51,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:33:51,053 INFO L480 AbstractCegarLoop]: Abstraction has 1485 states and 2304 transitions. [2018-11-06 19:33:51,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:33:51,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 2304 transitions. [2018-11-06 19:33:51,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-11-06 19:33:51,056 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:33:51,057 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-06 19:33:51,057 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:33:51,057 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:33:51,058 INFO L82 PathProgramCache]: Analyzing trace with hash -843989150, now seen corresponding path program 1 times [2018-11-06 19:33:51,058 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:33:51,058 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:33:51,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:33:51,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:33:51,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:33:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:33:51,316 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:33:51,316 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:33:51,316 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:33:51,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:33:51,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:33:51,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:33:51,321 INFO L87 Difference]: Start difference. First operand 1485 states and 2304 transitions. Second operand 4 states. [2018-11-06 19:33:57,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:33:57,411 INFO L93 Difference]: Finished difference Result 4257 states and 6664 transitions. [2018-11-06 19:33:57,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:33:57,412 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 82 [2018-11-06 19:33:57,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:33:57,427 INFO L225 Difference]: With dead ends: 4257 [2018-11-06 19:33:57,427 INFO L226 Difference]: Without dead ends: 2774 [2018-11-06 19:33:57,432 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:33:57,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2774 states. [2018-11-06 19:33:57,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2774 to 2774. [2018-11-06 19:33:57,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2774 states. [2018-11-06 19:33:57,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3714 transitions. [2018-11-06 19:33:57,490 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3714 transitions. Word has length 82 [2018-11-06 19:33:57,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:33:57,491 INFO L480 AbstractCegarLoop]: Abstraction has 2774 states and 3714 transitions. [2018-11-06 19:33:57,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:33:57,491 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3714 transitions. [2018-11-06 19:33:57,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-11-06 19:33:57,494 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:33:57,494 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-06 19:33:57,494 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:33:57,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:33:57,495 INFO L82 PathProgramCache]: Analyzing trace with hash 910712919, now seen corresponding path program 1 times [2018-11-06 19:33:57,495 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:33:57,495 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:33:57,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:33:57,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:33:57,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:33:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:33:57,694 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:33:57,695 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:33:57,695 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:33:57,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:33:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:33:57,803 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:33:58,277 WARN L179 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 23 [2018-11-06 19:33:58,346 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:33:58,380 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:33:58,380 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-11-06 19:33:58,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-06 19:33:58,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-06 19:33:58,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-06 19:33:58,382 INFO L87 Difference]: Start difference. First operand 2774 states and 3714 transitions. Second operand 7 states. [2018-11-06 19:35:52,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:35:52,317 INFO L93 Difference]: Finished difference Result 26167 states and 35114 transitions. [2018-11-06 19:35:52,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-06 19:35:52,318 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2018-11-06 19:35:52,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:35:52,385 INFO L225 Difference]: With dead ends: 26167 [2018-11-06 19:35:52,385 INFO L226 Difference]: Without dead ends: 14284 [2018-11-06 19:35:52,399 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-11-06 19:35:52,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14284 states. [2018-11-06 19:35:52,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14284 to 14243. [2018-11-06 19:35:52,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14243 states. [2018-11-06 19:35:52,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14243 states to 14243 states and 16260 transitions. [2018-11-06 19:35:52,667 INFO L78 Accepts]: Start accepts. Automaton has 14243 states and 16260 transitions. Word has length 85 [2018-11-06 19:35:52,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:35:52,667 INFO L480 AbstractCegarLoop]: Abstraction has 14243 states and 16260 transitions. [2018-11-06 19:35:52,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-06 19:35:52,668 INFO L276 IsEmpty]: Start isEmpty. Operand 14243 states and 16260 transitions. [2018-11-06 19:35:52,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2018-11-06 19:35:52,687 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:35:52,688 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 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, 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] [2018-11-06 19:35:52,688 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:35:52,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:35:52,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1286753897, now seen corresponding path program 1 times [2018-11-06 19:35:52,689 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:35:52,689 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:35:52,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:35:52,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:35:52,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:35:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:35:53,225 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-11-06 19:35:53,226 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:35:53,226 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:35:53,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:35:53,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:35:53,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:35:53,228 INFO L87 Difference]: Start difference. First operand 14243 states and 16260 transitions. Second operand 3 states. [2018-11-06 19:35:56,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:35:56,280 INFO L93 Difference]: Finished difference Result 34874 states and 40220 transitions. [2018-11-06 19:35:56,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:35:56,281 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 270 [2018-11-06 19:35:56,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:35:56,338 INFO L225 Difference]: With dead ends: 34874 [2018-11-06 19:35:56,339 INFO L226 Difference]: Without dead ends: 21060 [2018-11-06 19:35:56,356 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:35:56,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21060 states. [2018-11-06 19:35:56,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21060 to 21060. [2018-11-06 19:35:56,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21060 states. [2018-11-06 19:35:56,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21060 states to 21060 states and 23501 transitions. [2018-11-06 19:35:56,721 INFO L78 Accepts]: Start accepts. Automaton has 21060 states and 23501 transitions. Word has length 270 [2018-11-06 19:35:56,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:35:56,722 INFO L480 AbstractCegarLoop]: Abstraction has 21060 states and 23501 transitions. [2018-11-06 19:35:56,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:35:56,723 INFO L276 IsEmpty]: Start isEmpty. Operand 21060 states and 23501 transitions. [2018-11-06 19:35:56,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2018-11-06 19:35:56,726 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:35:56,727 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 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, 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] [2018-11-06 19:35:56,727 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:35:56,727 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:35:56,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1400273402, now seen corresponding path program 1 times [2018-11-06 19:35:56,728 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:35:56,728 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:35:56,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:35:56,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:35:56,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:35:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:35:56,986 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2018-11-06 19:35:56,986 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:35:56,987 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:35:56,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:35:56,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:35:56,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:35:56,988 INFO L87 Difference]: Start difference. First operand 21060 states and 23501 transitions. Second operand 3 states. [2018-11-06 19:36:02,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:36:02,796 INFO L93 Difference]: Finished difference Result 47663 states and 53703 transitions. [2018-11-06 19:36:02,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:36:02,796 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 277 [2018-11-06 19:36:02,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:36:02,849 INFO L225 Difference]: With dead ends: 47663 [2018-11-06 19:36:02,850 INFO L226 Difference]: Without dead ends: 26173 [2018-11-06 19:36:02,872 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:36:02,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26173 states. [2018-11-06 19:36:03,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26173 to 26171. [2018-11-06 19:36:03,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26171 states. [2018-11-06 19:36:03,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26171 states to 26171 states and 28899 transitions. [2018-11-06 19:36:03,204 INFO L78 Accepts]: Start accepts. Automaton has 26171 states and 28899 transitions. Word has length 277 [2018-11-06 19:36:03,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:36:03,204 INFO L480 AbstractCegarLoop]: Abstraction has 26171 states and 28899 transitions. [2018-11-06 19:36:03,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:36:03,205 INFO L276 IsEmpty]: Start isEmpty. Operand 26171 states and 28899 transitions. [2018-11-06 19:36:03,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2018-11-06 19:36:03,209 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:36:03,210 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:36:03,210 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:36:03,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:36:03,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1614989397, now seen corresponding path program 1 times [2018-11-06 19:36:03,210 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:36:03,211 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:36:03,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:36:03,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:36:03,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:36:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:36:03,645 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 176 proven. 10 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2018-11-06 19:36:03,646 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:36:03,646 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:36:03,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:36:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:36:03,759 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:36:03,952 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-11-06 19:36:03,982 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:36:03,983 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-11-06 19:36:03,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 19:36:03,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 19:36:03,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:36:03,986 INFO L87 Difference]: Start difference. First operand 26171 states and 28899 transitions. Second operand 5 states. [2018-11-06 19:36:08,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:36:08,561 INFO L93 Difference]: Finished difference Result 53188 states and 58796 transitions. [2018-11-06 19:36:08,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:36:08,562 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 280 [2018-11-06 19:36:08,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:36:08,592 INFO L225 Difference]: With dead ends: 53188 [2018-11-06 19:36:08,592 INFO L226 Difference]: Without dead ends: 27445 [2018-11-06 19:36:08,611 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:36:08,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27445 states. [2018-11-06 19:36:08,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27445 to 26166. [2018-11-06 19:36:08,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26166 states. [2018-11-06 19:36:08,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26166 states to 26166 states and 28825 transitions. [2018-11-06 19:36:08,869 INFO L78 Accepts]: Start accepts. Automaton has 26166 states and 28825 transitions. Word has length 280 [2018-11-06 19:36:08,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:36:08,869 INFO L480 AbstractCegarLoop]: Abstraction has 26166 states and 28825 transitions. [2018-11-06 19:36:08,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 19:36:08,870 INFO L276 IsEmpty]: Start isEmpty. Operand 26166 states and 28825 transitions. [2018-11-06 19:36:08,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2018-11-06 19:36:08,877 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:36:08,878 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2018-11-06 19:36:08,878 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:36:08,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:36:08,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1454233991, now seen corresponding path program 1 times [2018-11-06 19:36:08,878 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:36:08,883 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:36:08,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:36:08,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:36:08,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:36:08,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:36:09,636 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 250 proven. 12 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2018-11-06 19:36:09,638 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:36:09,638 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:36:09,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:36:09,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:36:09,767 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:36:10,077 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 315 proven. 83 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-11-06 19:36:10,113 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 19:36:10,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2018-11-06 19:36:10,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-06 19:36:10,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-06 19:36:10,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-06 19:36:10,118 INFO L87 Difference]: Start difference. First operand 26166 states and 28825 transitions. Second operand 8 states. [2018-11-06 19:36:25,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:36:25,633 INFO L93 Difference]: Finished difference Result 80095 states and 88920 transitions. [2018-11-06 19:36:25,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-06 19:36:25,633 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 351 [2018-11-06 19:36:25,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:36:25,691 INFO L225 Difference]: With dead ends: 80095 [2018-11-06 19:36:25,691 INFO L226 Difference]: Without dead ends: 53931 [2018-11-06 19:36:25,716 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2018-11-06 19:36:25,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53931 states. [2018-11-06 19:36:26,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53931 to 41936. [2018-11-06 19:36:26,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41936 states. [2018-11-06 19:36:26,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41936 states to 41936 states and 46044 transitions. [2018-11-06 19:36:26,499 INFO L78 Accepts]: Start accepts. Automaton has 41936 states and 46044 transitions. Word has length 351 [2018-11-06 19:36:26,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:36:26,500 INFO L480 AbstractCegarLoop]: Abstraction has 41936 states and 46044 transitions. [2018-11-06 19:36:26,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-06 19:36:26,500 INFO L276 IsEmpty]: Start isEmpty. Operand 41936 states and 46044 transitions. [2018-11-06 19:36:26,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2018-11-06 19:36:26,537 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:36:26,538 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2018-11-06 19:36:26,538 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:36:26,538 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:36:26,539 INFO L82 PathProgramCache]: Analyzing trace with hash -2099814410, now seen corresponding path program 1 times [2018-11-06 19:36:26,539 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:36:26,539 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:36:26,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:36:26,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:36:26,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:36:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:36:27,900 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 52 proven. 508 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:36:27,900 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:36:27,900 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 19:36:27,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:36:28,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:36:28,078 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:36:41,696 WARN L179 SmtUtils]: Spent 12.41 s on a formula simplification. DAG size of input: 423 DAG size of output: 59 [2018-11-06 19:36:47,329 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2018-11-06 19:36:47,348 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:36:47,349 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2018-11-06 19:36:47,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-06 19:36:47,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-06 19:36:47,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-06 19:36:47,351 INFO L87 Difference]: Start difference. First operand 41936 states and 46044 transitions. Second operand 9 states. [2018-11-06 19:36:51,247 WARN L179 SmtUtils]: Spent 2.72 s on a formula simplification that was a NOOP. DAG size: 62 Received shutdown request... [2018-11-06 19:37:41,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-06 19:37:41,949 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-06 19:37:41,956 WARN L205 ceAbstractionStarter]: Timeout [2018-11-06 19:37:41,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 07:37:41 BoogieIcfgContainer [2018-11-06 19:37:41,957 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 19:37:41,958 INFO L168 Benchmark]: Toolchain (without parser) took 252395.31 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -388.2 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-11-06 19:37:41,959 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-11-06 19:37:41,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1696.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-11-06 19:37:41,961 INFO L168 Benchmark]: Boogie Procedure Inliner took 505.58 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 771.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -897.1 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2018-11-06 19:37:41,962 INFO L168 Benchmark]: Boogie Preprocessor took 229.64 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. [2018-11-06 19:37:41,963 INFO L168 Benchmark]: RCFGBuilder took 10176.20 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 483.6 MB). Peak memory consumption was 483.6 MB. Max. memory is 7.1 GB. [2018-11-06 19:37:41,964 INFO L168 Benchmark]: TraceAbstraction took 239780.62 ms. Allocated memory was 2.3 GB in the beginning and 3.5 GB in the end (delta: 1.2 GB). Free memory was 1.7 GB in the beginning and 1.8 GB in the end (delta: -139.4 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-11-06 19:37:41,971 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1696.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 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 505.58 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 771.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -897.1 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 229.64 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10176.20 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 483.6 MB). Peak memory consumption was 483.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 239780.62 ms. Allocated memory was 2.3 GB in the beginning and 3.5 GB in the end (delta: 1.2 GB). Free memory was 1.7 GB in the beginning and 1.8 GB in the end (delta: -139.4 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 47]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 47). Cancelled while BasicCegarLoop was constructing difference of abstraction (41936states) and FLOYD_HOARE automaton (currently 12 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (15149 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 591 locations, 1 error locations. TIMEOUT Result, 239.6s OverallTime, 8 OverallIterations, 5 TraceHistogramMax, 212.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2965 SDtfs, 18767 SDslu, 1764 SDs, 0 SdLazy, 32563 SolverSat, 6613 SolverUnsat, 85 SolverUnknown, 0 SolverNotchecked, 197.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1404 GetRequests, 1358 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 19.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41936occurred in iteration=7, 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: 2.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 13331 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 23.1s InterpolantComputationTime, 3333 NumberOfCodeBlocks, 3333 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 3321 ConstructedInterpolants, 360 QuantifiedInterpolants, 39153806 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1797 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 12 InterpolantComputations, 7 PerfectInterpolantSequences, 2599/3223 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown