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_label46_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 17:09:44,424 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 17:09:44,426 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 17:09:44,443 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 17:09:44,443 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 17:09:44,444 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 17:09:44,446 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 17:09:44,447 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 17:09:44,449 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 17:09:44,450 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 17:09:44,450 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 17:09:44,451 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 17:09:44,452 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 17:09:44,453 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 17:09:44,454 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 17:09:44,455 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 17:09:44,455 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 17:09:44,460 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 17:09:44,462 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 17:09:44,464 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 17:09:44,469 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 17:09:44,470 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 17:09:44,476 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 17:09:44,476 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 17:09:44,476 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 17:09:44,479 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 17:09:44,482 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 17:09:44,483 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 17:09:44,484 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 17:09:44,485 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 17:09:44,485 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 17:09:44,485 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 17:09:44,486 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 17:09:44,488 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 17:09:44,490 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 17:09:44,490 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 17:09:44,491 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 17:09:44,511 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 17:09:44,511 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 17:09:44,512 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 17:09:44,513 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 17:09:44,513 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 17:09:44,514 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 17:09:44,514 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 17:09:44,514 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 17:09:44,514 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 17:09:44,515 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 17:09:44,515 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 17:09:44,515 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 17:09:44,515 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 17:09:44,515 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 17:09:44,516 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 17:09:44,516 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 17:09:44,516 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 17:09:44,516 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 17:09:44,516 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 17:09:44,517 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 17:09:44,517 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 17:09:44,517 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 17:09:44,517 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 17:09:44,518 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 17:09:44,518 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 17:09:44,518 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 17:09:44,518 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 17:09:44,518 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 17:09:44,583 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 17:09:44,599 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 17:09:44,604 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 17:09:44,606 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 17:09:44,606 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 17:09:44,607 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label46_true-unreach-call.c [2018-10-24 17:09:44,675 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1ac81938a/250011b6dac04204bceec7b3ded43e2f/FLAGbd69fbd78 [2018-10-24 17:09:45,630 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 17:09:45,631 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label46_true-unreach-call.c [2018-10-24 17:09:45,678 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1ac81938a/250011b6dac04204bceec7b3ded43e2f/FLAGbd69fbd78 [2018-10-24 17:09:45,694 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1ac81938a/250011b6dac04204bceec7b3ded43e2f [2018-10-24 17:09:45,706 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 17:09:45,707 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 17:09:45,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 17:09:45,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 17:09:45,713 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 17:09:45,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:09:45" (1/1) ... [2018-10-24 17:09:45,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31151419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:45, skipping insertion in model container [2018-10-24 17:09:45,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:09:45" (1/1) ... [2018-10-24 17:09:45,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 17:09:45,987 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 17:09:47,938 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 17:09:47,947 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 17:09:49,207 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 17:09:49,264 INFO L193 MainTranslator]: Completed translation [2018-10-24 17:09:49,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:49 WrapperNode [2018-10-24 17:09:49,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 17:09:49,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 17:09:49,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 17:09:49,266 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 17:09:49,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:49" (1/1) ... [2018-10-24 17:09:49,380 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:49" (1/1) ... [2018-10-24 17:09:50,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 17:09:50,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 17:09:50,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 17:09:50,492 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 17:09:50,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:49" (1/1) ... [2018-10-24 17:09:50,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:49" (1/1) ... [2018-10-24 17:09:50,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:49" (1/1) ... [2018-10-24 17:09:50,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:49" (1/1) ... [2018-10-24 17:09:50,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:49" (1/1) ... [2018-10-24 17:09:50,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:49" (1/1) ... [2018-10-24 17:09:51,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:49" (1/1) ... [2018-10-24 17:09:51,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 17:09:51,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 17:09:51,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 17:09:51,302 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 17:09:51,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:49" (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 17:09:51,378 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 17:09:51,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 17:09:51,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 17:10:09,778 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 17:10:09,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:10:09 BoogieIcfgContainer [2018-10-24 17:10:09,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 17:10:09,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 17:10:09,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 17:10:09,783 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 17:10:09,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 05:09:45" (1/3) ... [2018-10-24 17:10:09,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1e65e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:10:09, skipping insertion in model container [2018-10-24 17:10:09,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:09:49" (2/3) ... [2018-10-24 17:10:09,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1e65e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:10:09, skipping insertion in model container [2018-10-24 17:10:09,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:10:09" (3/3) ... [2018-10-24 17:10:09,787 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label46_true-unreach-call.c [2018-10-24 17:10:09,797 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 17:10:09,813 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 17:10:09,831 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 17:10:09,891 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 17:10:09,892 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 17:10:09,892 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 17:10:09,892 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 17:10:09,892 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 17:10:09,892 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 17:10:09,892 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 17:10:09,892 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 17:10:09,892 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 17:10:09,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-24 17:10:09,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-24 17:10:09,955 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:10:09,957 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:10:09,960 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:10:09,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:10:09,967 INFO L82 PathProgramCache]: Analyzing trace with hash 575043410, now seen corresponding path program 1 times [2018-10-24 17:10:09,969 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:10:09,970 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:10:10,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:10:10,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:10:10,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:10:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:10:10,406 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 17:10:10,409 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:10:10,410 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 17:10:10,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:10:10,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:10:10,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:10:10,434 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-24 17:10:38,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:10:38,254 INFO L93 Difference]: Finished difference Result 6361 states and 12176 transitions. [2018-10-24 17:10:38,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:10:38,257 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2018-10-24 17:10:38,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:10:38,337 INFO L225 Difference]: With dead ends: 6361 [2018-10-24 17:10:38,338 INFO L226 Difference]: Without dead ends: 4605 [2018-10-24 17:10:38,352 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 17:10:38,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4605 states. [2018-10-24 17:10:38,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4605 to 3148. [2018-10-24 17:10:38,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3148 states. [2018-10-24 17:10:38,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 5068 transitions. [2018-10-24 17:10:38,568 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 5068 transitions. Word has length 33 [2018-10-24 17:10:38,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:10:38,568 INFO L481 AbstractCegarLoop]: Abstraction has 3148 states and 5068 transitions. [2018-10-24 17:10:38,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:10:38,569 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 5068 transitions. [2018-10-24 17:10:38,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-24 17:10:38,573 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:10:38,574 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 17:10:38,576 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:10:38,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:10:38,576 INFO L82 PathProgramCache]: Analyzing trace with hash -795561107, now seen corresponding path program 1 times [2018-10-24 17:10:38,576 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:10:38,576 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:10:38,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:10:38,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:10:38,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:10:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:10:39,024 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-24 17:10:39,242 WARN L179 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2018-10-24 17:10:39,996 WARN L179 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-10-24 17:10:40,148 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:10:40,148 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:10:40,148 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 17:10:40,150 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 17:10:40,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 17:10:40,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 17:10:40,151 INFO L87 Difference]: Start difference. First operand 3148 states and 5068 transitions. Second operand 6 states. [2018-10-24 17:11:12,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:11:12,715 INFO L93 Difference]: Finished difference Result 13170 states and 20020 transitions. [2018-10-24 17:11:12,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 17:11:12,716 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2018-10-24 17:11:12,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:11:12,766 INFO L225 Difference]: With dead ends: 13170 [2018-10-24 17:11:12,766 INFO L226 Difference]: Without dead ends: 10024 [2018-10-24 17:11:12,772 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-24 17:11:12,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10024 states. [2018-10-24 17:11:12,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10024 to 8652. [2018-10-24 17:11:12,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8652 states. [2018-10-24 17:11:12,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8652 states to 8652 states and 12036 transitions. [2018-10-24 17:11:12,940 INFO L78 Accepts]: Start accepts. Automaton has 8652 states and 12036 transitions. Word has length 101 [2018-10-24 17:11:12,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:11:12,941 INFO L481 AbstractCegarLoop]: Abstraction has 8652 states and 12036 transitions. [2018-10-24 17:11:12,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 17:11:12,941 INFO L276 IsEmpty]: Start isEmpty. Operand 8652 states and 12036 transitions. [2018-10-24 17:11:12,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-10-24 17:11:12,949 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:11:12,950 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:11:12,950 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:11:12,950 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:11:12,951 INFO L82 PathProgramCache]: Analyzing trace with hash -881435059, now seen corresponding path program 1 times [2018-10-24 17:11:12,951 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:11:12,951 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:11:12,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:11:12,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:11:12,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:11:13,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:11:13,537 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-24 17:11:14,088 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-10-24 17:11:14,089 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:11:14,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 17:11:14,090 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 17:11:14,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 17:11:14,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 17:11:14,090 INFO L87 Difference]: Start difference. First operand 8652 states and 12036 transitions. Second operand 7 states. [2018-10-24 17:11:50,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:11:50,550 INFO L93 Difference]: Finished difference Result 26878 states and 36468 transitions. [2018-10-24 17:11:50,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 17:11:50,555 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 309 [2018-10-24 17:11:50,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:11:50,623 INFO L225 Difference]: With dead ends: 26878 [2018-10-24 17:11:50,623 INFO L226 Difference]: Without dead ends: 18228 [2018-10-24 17:11:50,632 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-24 17:11:50,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18228 states. [2018-10-24 17:11:50,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18228 to 15493. [2018-10-24 17:11:50,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15493 states. [2018-10-24 17:11:50,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15493 states to 15493 states and 19189 transitions. [2018-10-24 17:11:50,889 INFO L78 Accepts]: Start accepts. Automaton has 15493 states and 19189 transitions. Word has length 309 [2018-10-24 17:11:50,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:11:50,890 INFO L481 AbstractCegarLoop]: Abstraction has 15493 states and 19189 transitions. [2018-10-24 17:11:50,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 17:11:50,891 INFO L276 IsEmpty]: Start isEmpty. Operand 15493 states and 19189 transitions. [2018-10-24 17:11:50,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2018-10-24 17:11:50,895 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:11:50,895 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:11:50,896 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:11:50,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:11:50,896 INFO L82 PathProgramCache]: Analyzing trace with hash -304753805, now seen corresponding path program 1 times [2018-10-24 17:11:50,896 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:11:50,897 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:11:50,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:11:50,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:11:50,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:11:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:11:51,441 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 61 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:11:51,441 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:11:51,441 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 17:11:51,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:11:51,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:11:51,576 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:11:51,718 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:11:51,750 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:11:51,750 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-24 17:11:51,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 17:11:51,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 17:11:51,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 17:11:51,753 INFO L87 Difference]: Start difference. First operand 15493 states and 19189 transitions. Second operand 5 states. [2018-10-24 17:12:30,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:12:30,610 INFO L93 Difference]: Finished difference Result 70982 states and 95208 transitions. [2018-10-24 17:12:30,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 17:12:30,611 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 337 [2018-10-24 17:12:30,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:12:30,707 INFO L225 Difference]: With dead ends: 70982 [2018-10-24 17:12:30,708 INFO L226 Difference]: Without dead ends: 51391 [2018-10-24 17:12:30,735 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 338 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 17:12:30,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51391 states. [2018-10-24 17:12:31,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51391 to 51309. [2018-10-24 17:12:31,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51309 states. [2018-10-24 17:12:31,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51309 states to 51309 states and 60472 transitions. [2018-10-24 17:12:31,424 INFO L78 Accepts]: Start accepts. Automaton has 51309 states and 60472 transitions. Word has length 337 [2018-10-24 17:12:31,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:12:31,425 INFO L481 AbstractCegarLoop]: Abstraction has 51309 states and 60472 transitions. [2018-10-24 17:12:31,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 17:12:31,425 INFO L276 IsEmpty]: Start isEmpty. Operand 51309 states and 60472 transitions. [2018-10-24 17:12:31,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2018-10-24 17:12:31,430 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:12:31,431 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:12:31,431 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:12:31,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:12:31,432 INFO L82 PathProgramCache]: Analyzing trace with hash -199585925, now seen corresponding path program 1 times [2018-10-24 17:12:31,432 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:12:31,432 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:12:31,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:12:31,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:12:31,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:12:31,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:12:31,877 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 61 proven. 4 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-24 17:12:31,877 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:12:31,877 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 17:12:31,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:12:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:12:31,985 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:12:32,079 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 17:12:32,101 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:12:32,102 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 17:12:32,103 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:12:32,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:12:32,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:12:32,103 INFO L87 Difference]: Start difference. First operand 51309 states and 60472 transitions. Second operand 4 states. [2018-10-24 17:12:52,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:12:52,760 INFO L93 Difference]: Finished difference Result 184884 states and 220618 transitions. [2018-10-24 17:12:52,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:12:52,761 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 347 [2018-10-24 17:12:52,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:12:52,942 INFO L225 Difference]: With dead ends: 184884 [2018-10-24 17:12:52,942 INFO L226 Difference]: Without dead ends: 134943 [2018-10-24 17:12:53,005 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:12:53,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134943 states. [2018-10-24 17:12:54,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134943 to 86821. [2018-10-24 17:12:54,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86821 states. [2018-10-24 17:12:54,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86821 states to 86821 states and 101826 transitions. [2018-10-24 17:12:54,678 INFO L78 Accepts]: Start accepts. Automaton has 86821 states and 101826 transitions. Word has length 347 [2018-10-24 17:12:54,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:12:54,679 INFO L481 AbstractCegarLoop]: Abstraction has 86821 states and 101826 transitions. [2018-10-24 17:12:54,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:12:54,679 INFO L276 IsEmpty]: Start isEmpty. Operand 86821 states and 101826 transitions. [2018-10-24 17:12:54,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2018-10-24 17:12:54,696 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:12:54,696 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 17:12:54,697 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:12:54,697 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:12:54,697 INFO L82 PathProgramCache]: Analyzing trace with hash 633175195, now seen corresponding path program 1 times [2018-10-24 17:12:54,697 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:12:54,698 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:12:54,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:12:54,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:12:54,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:12:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:12:55,613 WARN L179 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 15 [2018-10-24 17:12:56,294 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 459 proven. 4 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2018-10-24 17:12:56,294 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:12:56,294 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 17:12:56,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:12:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:12:56,470 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:12:56,798 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 463 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (4)] Abandoning pump threads because process wont die! [2018-10-24 17:12:57,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:12:57,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-24 17:12:57,301 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 17:12:57,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 17:12:57,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 17:12:57,303 INFO L87 Difference]: Start difference. First operand 86821 states and 101826 transitions. Second operand 5 states. [2018-10-24 17:13:19,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:13:19,067 INFO L93 Difference]: Finished difference Result 183205 states and 213687 transitions. [2018-10-24 17:13:19,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 17:13:19,068 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 650 [2018-10-24 17:13:19,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:13:19,166 INFO L225 Difference]: With dead ends: 183205 [2018-10-24 17:13:19,166 INFO L226 Difference]: Without dead ends: 93651 [2018-10-24 17:13:19,209 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 656 GetRequests, 650 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 17:13:19,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93651 states. [2018-10-24 17:13:20,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93651 to 90917. [2018-10-24 17:13:20,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90917 states. [2018-10-24 17:13:20,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90917 states to 90917 states and 100330 transitions. [2018-10-24 17:13:20,081 INFO L78 Accepts]: Start accepts. Automaton has 90917 states and 100330 transitions. Word has length 650 [2018-10-24 17:13:20,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:13:20,082 INFO L481 AbstractCegarLoop]: Abstraction has 90917 states and 100330 transitions. [2018-10-24 17:13:20,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 17:13:20,082 INFO L276 IsEmpty]: Start isEmpty. Operand 90917 states and 100330 transitions. [2018-10-24 17:13:20,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 735 [2018-10-24 17:13:20,102 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:13:20,103 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:13:20,104 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:13:20,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:13:20,104 INFO L82 PathProgramCache]: Analyzing trace with hash -862785651, now seen corresponding path program 1 times [2018-10-24 17:13:20,104 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:13:20,104 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:13:20,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:13:20,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:13:20,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:13:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:13:20,731 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-24 17:13:21,040 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2018-10-24 17:13:21,041 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:13:21,041 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 17:13:21,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 17:13:21,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 17:13:21,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 17:13:21,043 INFO L87 Difference]: Start difference. First operand 90917 states and 100330 transitions. Second operand 5 states. Received shutdown request... [2018-10-24 17:13:42,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 17:13:42,180 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 17:13:42,187 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 17:13:42,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 05:13:42 BoogieIcfgContainer [2018-10-24 17:13:42,187 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 17:13:42,188 INFO L168 Benchmark]: Toolchain (without parser) took 236481.81 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -269.3 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-24 17:13:42,190 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. [2018-10-24 17:13:42,190 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3556.68 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 17:13:42,191 INFO L168 Benchmark]: Boogie Procedure Inliner took 1225.61 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 861.9 MB). Free memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-24 17:13:42,192 INFO L168 Benchmark]: Boogie Preprocessor took 809.70 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 105.1 MB). Peak memory consumption was 105.1 MB. Max. memory is 7.1 GB. [2018-10-24 17:13:42,193 INFO L168 Benchmark]: RCFGBuilder took 18477.23 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 293.6 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -391.5 MB). Peak memory consumption was 854.9 MB. Max. memory is 7.1 GB. [2018-10-24 17:13:42,194 INFO L168 Benchmark]: TraceAbstraction took 212407.48 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.2 GB). Free memory was 2.4 GB in the beginning and 1.7 GB in the end (delta: 760.1 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-24 17:13:42,200 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 3556.68 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 1225.61 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 861.9 MB). Free memory was 1.0 GB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 809.70 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 105.1 MB). Peak memory consumption was 105.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18477.23 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 293.6 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -391.5 MB). Peak memory consumption was 854.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 212407.48 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.2 GB). Free memory was 2.4 GB in the beginning and 1.7 GB in the end (delta: 760.1 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 112). Cancelled while BasicCegarLoop was constructing difference of abstraction (90917states) and FLOYD_HOARE automaton (currently 5 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (225418 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 212.3s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 200.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8968 SDtfs, 46736 SDslu, 4038 SDs, 0 SdLazy, 92287 SolverSat, 18834 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 171.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1376 GetRequests, 1340 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90917occurred 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: 3.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 56502 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 3845 NumberOfCodeBlocks, 3845 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 3835 ConstructedInterpolants, 0 QuantifiedInterpolants, 6748275 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1628 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 2146/2219 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown