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/Problem13_label37_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 20:19:39,404 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 20:19:39,411 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 20:19:39,430 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 20:19:39,431 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 20:19:39,433 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 20:19:39,436 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 20:19:39,438 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 20:19:39,440 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 20:19:39,443 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 20:19:39,445 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 20:19:39,445 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 20:19:39,447 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 20:19:39,454 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 20:19:39,455 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 20:19:39,459 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 20:19:39,460 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 20:19:39,462 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 20:19:39,468 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 20:19:39,470 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 20:19:39,471 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 20:19:39,475 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 20:19:39,480 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 20:19:39,480 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 20:19:39,480 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 20:19:39,484 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 20:19:39,485 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 20:19:39,487 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 20:19:39,488 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 20:19:39,489 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 20:19:39,489 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 20:19:39,490 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-23 20:19:39,493 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-23 20:19:39,517 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 20:19:39,517 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 20:19:39,518 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 20:19:39,518 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 20:19:39,519 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 20:19:39,519 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 20:19:39,519 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 20:19:39,519 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 20:19:39,520 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 20:19:39,520 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 20:19:39,520 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 20:19:39,520 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 20:19:39,520 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 20:19:39,521 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 20:19:39,521 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 20:19:39,521 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 20:19:39,521 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 20:19:39,521 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 20:19:39,522 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 20:19:39,522 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 20:19:39,522 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 20:19:39,522 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 20:19:39,522 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 20:19:39,523 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 20:19:39,523 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 20:19:39,523 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 20:19:39,523 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 20:19:39,523 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 20:19:39,574 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 20:19:39,590 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 20:19:39,594 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 20:19:39,595 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 20:19:39,596 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 20:19:39,597 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label37_true-unreach-call.c [2018-10-23 20:19:39,658 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/20f9b1477/f62867be929744ada06ee1b26c143f5c/FLAGfda65828f [2018-10-23 20:19:40,472 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 20:19:40,472 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label37_true-unreach-call.c [2018-10-23 20:19:40,505 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/20f9b1477/f62867be929744ada06ee1b26c143f5c/FLAGfda65828f [2018-10-23 20:19:40,520 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/20f9b1477/f62867be929744ada06ee1b26c143f5c [2018-10-23 20:19:40,532 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 20:19:40,534 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 20:19:40,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 20:19:40,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 20:19:40,539 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 20:19:40,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:19:40" (1/1) ... [2018-10-23 20:19:40,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@281c8e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:40, skipping insertion in model container [2018-10-23 20:19:40,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:19:40" (1/1) ... [2018-10-23 20:19:40,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 20:19:40,730 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 20:19:42,217 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 20:19:42,222 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 20:19:43,111 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 20:19:43,155 INFO L193 MainTranslator]: Completed translation [2018-10-23 20:19:43,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:43 WrapperNode [2018-10-23 20:19:43,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 20:19:43,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 20:19:43,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 20:19:43,158 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 20:19:43,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:43" (1/1) ... [2018-10-23 20:19:43,253 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:43" (1/1) ... [2018-10-23 20:19:43,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 20:19:43,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 20:19:43,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 20:19:43,994 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 20:19:44,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:43" (1/1) ... [2018-10-23 20:19:44,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:43" (1/1) ... [2018-10-23 20:19:44,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:43" (1/1) ... [2018-10-23 20:19:44,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:43" (1/1) ... [2018-10-23 20:19:44,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:43" (1/1) ... [2018-10-23 20:19:44,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:43" (1/1) ... [2018-10-23 20:19:44,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:43" (1/1) ... [2018-10-23 20:19:44,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 20:19:44,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 20:19:44,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 20:19:44,421 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 20:19:44,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 20:19:44,495 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 20:19:44,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 20:19:44,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 20:19:56,877 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 20:19:56,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:19:56 BoogieIcfgContainer [2018-10-23 20:19:56,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 20:19:56,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 20:19:56,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 20:19:56,883 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 20:19:56,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:19:40" (1/3) ... [2018-10-23 20:19:56,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727eed53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:19:56, skipping insertion in model container [2018-10-23 20:19:56,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:43" (2/3) ... [2018-10-23 20:19:56,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727eed53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:19:56, skipping insertion in model container [2018-10-23 20:19:56,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:19:56" (3/3) ... [2018-10-23 20:19:56,887 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label37_true-unreach-call.c [2018-10-23 20:19:56,896 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 20:19:56,908 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 20:19:56,924 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 20:19:56,971 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 20:19:56,972 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 20:19:56,972 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 20:19:56,973 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 20:19:56,973 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 20:19:56,973 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 20:19:56,973 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 20:19:56,973 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 20:19:56,973 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 20:19:57,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-10-23 20:19:57,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-10-23 20:19:57,028 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:19:57,030 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:19:57,032 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:19:57,038 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:19:57,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1306950314, now seen corresponding path program 1 times [2018-10-23 20:19:57,040 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:19:57,040 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:19:57,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:19:57,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:19:57,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:19:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:19:57,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:19:57,569 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:19:57,570 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 20:19:57,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:19:57,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:19:57,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:19:57,595 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-10-23 20:20:13,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:20:13,902 INFO L93 Difference]: Finished difference Result 3991 states and 7504 transitions. [2018-10-23 20:20:13,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:20:13,905 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 55 [2018-10-23 20:20:13,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:20:13,951 INFO L225 Difference]: With dead ends: 3991 [2018-10-23 20:20:13,952 INFO L226 Difference]: Without dead ends: 2885 [2018-10-23 20:20:13,961 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 [2018-10-23 20:20:13,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2018-10-23 20:20:14,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 1946. [2018-10-23 20:20:14,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1946 states. [2018-10-23 20:20:14,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1946 states to 1946 states and 3412 transitions. [2018-10-23 20:20:14,104 INFO L78 Accepts]: Start accepts. Automaton has 1946 states and 3412 transitions. Word has length 55 [2018-10-23 20:20:14,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:20:14,104 INFO L481 AbstractCegarLoop]: Abstraction has 1946 states and 3412 transitions. [2018-10-23 20:20:14,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:20:14,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1946 states and 3412 transitions. [2018-10-23 20:20:14,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-10-23 20:20:14,110 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:20:14,110 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, 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] [2018-10-23 20:20:14,111 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:20:14,111 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:20:14,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1157170007, now seen corresponding path program 1 times [2018-10-23 20:20:14,111 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:20:14,111 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:20:14,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:20:14,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:20:14,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:20:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:20:14,361 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:20:14,361 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:20:14,362 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 20:20:14,363 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:20:14,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:20:14,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:20:14,364 INFO L87 Difference]: Start difference. First operand 1946 states and 3412 transitions. Second operand 4 states. [2018-10-23 20:20:30,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:20:30,255 INFO L93 Difference]: Finished difference Result 7107 states and 12745 transitions. [2018-10-23 20:20:30,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:20:30,256 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 122 [2018-10-23 20:20:30,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:20:30,288 INFO L225 Difference]: With dead ends: 7107 [2018-10-23 20:20:30,288 INFO L226 Difference]: Without dead ends: 5163 [2018-10-23 20:20:30,293 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 [2018-10-23 20:20:30,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5163 states. [2018-10-23 20:20:30,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5163 to 5141. [2018-10-23 20:20:30,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5141 states. [2018-10-23 20:20:30,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 8063 transitions. [2018-10-23 20:20:30,392 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 8063 transitions. Word has length 122 [2018-10-23 20:20:30,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:20:30,393 INFO L481 AbstractCegarLoop]: Abstraction has 5141 states and 8063 transitions. [2018-10-23 20:20:30,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:20:30,393 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 8063 transitions. [2018-10-23 20:20:30,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-10-23 20:20:30,399 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:20:30,399 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, 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] [2018-10-23 20:20:30,400 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:20:30,400 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:20:30,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1060132003, now seen corresponding path program 1 times [2018-10-23 20:20:30,400 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:20:30,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:20:30,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:20:30,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:20:30,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:20:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:20:31,905 WARN L179 SmtUtils]: Spent 840.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 26 [2018-10-23 20:20:32,394 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:20:32,395 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:20:32,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-23 20:20:32,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-23 20:20:32,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-23 20:20:32,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-23 20:20:32,396 INFO L87 Difference]: Start difference. First operand 5141 states and 8063 transitions. Second operand 8 states. [2018-10-23 20:20:50,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:20:50,876 INFO L93 Difference]: Finished difference Result 12647 states and 18962 transitions. [2018-10-23 20:20:50,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 20:20:50,877 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 210 [2018-10-23 20:20:50,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:20:50,914 INFO L225 Difference]: With dead ends: 12647 [2018-10-23 20:20:50,915 INFO L226 Difference]: Without dead ends: 7508 [2018-10-23 20:20:50,922 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2018-10-23 20:20:50,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7508 states. [2018-10-23 20:20:51,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7508 to 6717. [2018-10-23 20:20:51,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6717 states. [2018-10-23 20:20:51,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6717 states to 6717 states and 9650 transitions. [2018-10-23 20:20:51,045 INFO L78 Accepts]: Start accepts. Automaton has 6717 states and 9650 transitions. Word has length 210 [2018-10-23 20:20:51,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:20:51,045 INFO L481 AbstractCegarLoop]: Abstraction has 6717 states and 9650 transitions. [2018-10-23 20:20:51,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-23 20:20:51,046 INFO L276 IsEmpty]: Start isEmpty. Operand 6717 states and 9650 transitions. [2018-10-23 20:20:51,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2018-10-23 20:20:51,050 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:20:51,050 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:20:51,050 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:20:51,051 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:20:51,051 INFO L82 PathProgramCache]: Analyzing trace with hash -54862913, now seen corresponding path program 1 times [2018-10-23 20:20:51,051 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:20:51,051 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:20:51,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:20:51,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:20:51,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:20:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:20:51,490 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 109 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:20:51,490 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:20:51,490 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 20:20:51,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:20:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:20:51,621 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:20:51,804 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:20:51,828 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 20:20:51,828 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-23 20:20:51,829 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 20:20:51,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 20:20:51,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 20:20:51,830 INFO L87 Difference]: Start difference. First operand 6717 states and 9650 transitions. Second operand 6 states. [2018-10-23 20:21:19,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:21:19,996 INFO L93 Difference]: Finished difference Result 31065 states and 47529 transitions. [2018-10-23 20:21:19,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-23 20:21:19,996 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 256 [2018-10-23 20:21:19,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:21:20,082 INFO L225 Difference]: With dead ends: 31065 [2018-10-23 20:21:20,082 INFO L226 Difference]: Without dead ends: 24350 [2018-10-23 20:21:20,099 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-10-23 20:21:20,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24350 states. [2018-10-23 20:21:20,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24350 to 24167. [2018-10-23 20:21:20,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24167 states. [2018-10-23 20:21:20,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24167 states to 24167 states and 34044 transitions. [2018-10-23 20:21:20,644 INFO L78 Accepts]: Start accepts. Automaton has 24167 states and 34044 transitions. Word has length 256 [2018-10-23 20:21:20,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:21:20,645 INFO L481 AbstractCegarLoop]: Abstraction has 24167 states and 34044 transitions. [2018-10-23 20:21:20,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 20:21:20,645 INFO L276 IsEmpty]: Start isEmpty. Operand 24167 states and 34044 transitions. [2018-10-23 20:21:20,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2018-10-23 20:21:20,660 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:21:20,661 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, 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, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 20:21:20,661 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:21:20,662 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:21:20,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1405747511, now seen corresponding path program 1 times [2018-10-23 20:21:20,662 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:21:20,662 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:21:20,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:21:20,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:21:20,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:21:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:21:21,138 WARN L179 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-23 20:21:21,479 WARN L179 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2018-10-23 20:21:21,820 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 289 proven. 4 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-10-23 20:21:21,820 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:21:21,821 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 [2018-10-23 20:21:21,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:21:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:21:21,925 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:21:22,044 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2018-10-23 20:21:22,066 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 20:21:22,067 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2018-10-23 20:21:22,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 20:21:22,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 20:21:22,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 20:21:22,069 INFO L87 Difference]: Start difference. First operand 24167 states and 34044 transitions. Second operand 6 states. [2018-10-23 20:21:40,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:21:40,828 INFO L93 Difference]: Finished difference Result 105057 states and 150578 transitions. [2018-10-23 20:21:40,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 20:21:40,828 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 325 [2018-10-23 20:21:40,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:21:40,976 INFO L225 Difference]: With dead ends: 105057 [2018-10-23 20:21:40,977 INFO L226 Difference]: Without dead ends: 80892 [2018-10-23 20:21:41,019 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 325 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2018-10-23 20:21:41,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80892 states. [2018-10-23 20:21:42,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80892 to 80099. [2018-10-23 20:21:42,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80099 states. [2018-10-23 20:21:42,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80099 states to 80099 states and 99565 transitions. [2018-10-23 20:21:42,143 INFO L78 Accepts]: Start accepts. Automaton has 80099 states and 99565 transitions. Word has length 325 [2018-10-23 20:21:42,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:21:42,143 INFO L481 AbstractCegarLoop]: Abstraction has 80099 states and 99565 transitions. [2018-10-23 20:21:42,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 20:21:42,144 INFO L276 IsEmpty]: Start isEmpty. Operand 80099 states and 99565 transitions. [2018-10-23 20:21:42,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2018-10-23 20:21:42,166 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:21:42,167 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:21:42,167 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:21:42,167 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:21:42,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1534327477, now seen corresponding path program 1 times [2018-10-23 20:21:42,168 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:21:42,168 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:21:42,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:21:42,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:21:42,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:21:42,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:21:42,686 WARN L179 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-23 20:21:42,796 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:21:42,796 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:21:42,797 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 20:21:42,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:21:42,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:21:42,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:21:42,798 INFO L87 Difference]: Start difference. First operand 80099 states and 99565 transitions. Second operand 4 states. [2018-10-23 20:21:51,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:21:51,740 INFO L93 Difference]: Finished difference Result 172015 states and 213050 transitions. [2018-10-23 20:21:51,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:21:51,742 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 348 [2018-10-23 20:21:51,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:21:51,875 INFO L225 Difference]: With dead ends: 172015 [2018-10-23 20:21:51,875 INFO L226 Difference]: Without dead ends: 88764 [2018-10-23 20:21:51,948 INFO L605 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 [2018-10-23 20:21:52,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88764 states. [2018-10-23 20:21:52,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88764 to 86393. [2018-10-23 20:21:52,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86393 states. [2018-10-23 20:21:53,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86393 states to 86393 states and 106000 transitions. [2018-10-23 20:21:53,086 INFO L78 Accepts]: Start accepts. Automaton has 86393 states and 106000 transitions. Word has length 348 [2018-10-23 20:21:53,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:21:53,087 INFO L481 AbstractCegarLoop]: Abstraction has 86393 states and 106000 transitions. [2018-10-23 20:21:53,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:21:53,087 INFO L276 IsEmpty]: Start isEmpty. Operand 86393 states and 106000 transitions. [2018-10-23 20:21:53,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2018-10-23 20:21:53,112 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:21:53,112 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, 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, 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] [2018-10-23 20:21:53,112 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:21:53,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:21:53,117 INFO L82 PathProgramCache]: Analyzing trace with hash -23288333, now seen corresponding path program 1 times [2018-10-23 20:21:53,117 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:21:53,117 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:21:53,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:21:53,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:21:53,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:21:53,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:21:53,712 WARN L179 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 7 [2018-10-23 20:21:53,980 WARN L179 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 7 [2018-10-23 20:21:54,368 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 354 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-10-23 20:21:54,369 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:21:54,369 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 20:21:54,370 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 20:21:54,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 20:21:54,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-23 20:21:54,371 INFO L87 Difference]: Start difference. First operand 86393 states and 106000 transitions. Second operand 6 states. [2018-10-23 20:22:09,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:22:09,038 INFO L93 Difference]: Finished difference Result 210823 states and 256744 transitions. [2018-10-23 20:22:09,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 20:22:09,041 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 380 [2018-10-23 20:22:09,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:22:09,242 INFO L225 Difference]: With dead ends: 210823 [2018-10-23 20:22:09,242 INFO L226 Difference]: Without dead ends: 125220 [2018-10-23 20:22:09,343 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-23 20:22:09,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125220 states. [2018-10-23 20:22:10,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125220 to 95819. [2018-10-23 20:22:10,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95819 states. [2018-10-23 20:22:10,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95819 states to 95819 states and 112720 transitions. [2018-10-23 20:22:10,870 INFO L78 Accepts]: Start accepts. Automaton has 95819 states and 112720 transitions. Word has length 380 [2018-10-23 20:22:10,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:22:10,871 INFO L481 AbstractCegarLoop]: Abstraction has 95819 states and 112720 transitions. [2018-10-23 20:22:10,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 20:22:10,871 INFO L276 IsEmpty]: Start isEmpty. Operand 95819 states and 112720 transitions. [2018-10-23 20:22:10,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2018-10-23 20:22:10,896 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:22:10,896 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, 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, 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] [2018-10-23 20:22:10,896 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:22:10,897 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:22:10,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1980567799, now seen corresponding path program 1 times [2018-10-23 20:22:10,897 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:22:10,897 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:22:10,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:22:10,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:22:10,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:22:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:22:11,536 WARN L179 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-23 20:22:11,856 WARN L179 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2018-10-23 20:22:13,120 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 362 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-10-23 20:22:13,121 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:22:13,121 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 [2018-10-23 20:22:13,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:22:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:22:13,235 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:22:13,464 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 343 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-10-23 20:22:13,485 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 20:22:13,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2018-10-23 20:22:13,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-23 20:22:13,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-23 20:22:13,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-23 20:22:13,487 INFO L87 Difference]: Start difference. First operand 95819 states and 112720 transitions. Second operand 8 states. [2018-10-23 20:22:45,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:22:45,013 INFO L93 Difference]: Finished difference Result 262571 states and 306550 transitions. [2018-10-23 20:22:45,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-23 20:22:45,013 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 409 [2018-10-23 20:22:45,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:22:45,180 INFO L225 Difference]: With dead ends: 262571 [2018-10-23 20:22:45,181 INFO L226 Difference]: Without dead ends: 153326 [2018-10-23 20:22:45,229 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 412 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2018-10-23 20:22:45,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153326 states. [2018-10-23 20:22:46,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153326 to 144636. [2018-10-23 20:22:46,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144636 states. [2018-10-23 20:22:46,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144636 states to 144636 states and 161982 transitions. [2018-10-23 20:22:46,559 INFO L78 Accepts]: Start accepts. Automaton has 144636 states and 161982 transitions. Word has length 409 [2018-10-23 20:22:46,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:22:46,560 INFO L481 AbstractCegarLoop]: Abstraction has 144636 states and 161982 transitions. [2018-10-23 20:22:46,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-23 20:22:46,560 INFO L276 IsEmpty]: Start isEmpty. Operand 144636 states and 161982 transitions. [2018-10-23 20:22:46,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2018-10-23 20:22:46,588 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:22:46,589 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 20:22:46,589 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:22:46,589 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:22:46,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1240522182, now seen corresponding path program 1 times [2018-10-23 20:22:46,589 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:22:46,589 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:22:46,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:22:46,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:22:46,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:22:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:22:47,035 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-10-23 20:22:47,035 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:22:47,035 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 20:22:47,036 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 20:22:47,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 20:22:47,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 20:22:47,036 INFO L87 Difference]: Start difference. First operand 144636 states and 161982 transitions. Second operand 3 states. [2018-10-23 20:22:53,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:22:53,819 INFO L93 Difference]: Finished difference Result 285308 states and 319296 transitions. [2018-10-23 20:22:53,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 20:22:53,819 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 544 [2018-10-23 20:22:53,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:22:53,975 INFO L225 Difference]: With dead ends: 285308 [2018-10-23 20:22:53,976 INFO L226 Difference]: Without dead ends: 139884 [2018-10-23 20:22:54,048 INFO L605 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 [2018-10-23 20:22:54,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139884 states. [2018-10-23 20:22:55,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139884 to 136726. [2018-10-23 20:22:55,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136726 states. [2018-10-23 20:22:55,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136726 states to 136726 states and 148382 transitions. [2018-10-23 20:22:55,233 INFO L78 Accepts]: Start accepts. Automaton has 136726 states and 148382 transitions. Word has length 544 [2018-10-23 20:22:55,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:22:55,234 INFO L481 AbstractCegarLoop]: Abstraction has 136726 states and 148382 transitions. [2018-10-23 20:22:55,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 20:22:55,235 INFO L276 IsEmpty]: Start isEmpty. Operand 136726 states and 148382 transitions. [2018-10-23 20:22:55,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2018-10-23 20:22:55,264 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:22:55,265 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:22:55,265 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:22:55,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:22:55,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1394404916, now seen corresponding path program 1 times [2018-10-23 20:22:55,266 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:22:55,266 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:22:55,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:22:55,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:22:55,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:22:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:22:55,755 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-10-23 20:22:57,013 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 515 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2018-10-23 20:22:57,014 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:22:57,014 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:22:57,014 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:22:57,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:22:57,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:22:57,015 INFO L87 Difference]: Start difference. First operand 136726 states and 148382 transitions. Second operand 4 states. [2018-10-23 20:23:09,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:23:09,295 INFO L93 Difference]: Finished difference Result 367274 states and 399777 transitions. [2018-10-23 20:23:09,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:23:09,298 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 631 [2018-10-23 20:23:09,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:23:09,555 INFO L225 Difference]: With dead ends: 367274 [2018-10-23 20:23:09,555 INFO L226 Difference]: Without dead ends: 213975 [2018-10-23 20:23:09,640 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:23:09,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213975 states. [2018-10-23 20:23:12,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213975 to 207666. [2018-10-23 20:23:12,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207666 states. [2018-10-23 20:23:12,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207666 states to 207666 states and 221936 transitions. [2018-10-23 20:23:12,550 INFO L78 Accepts]: Start accepts. Automaton has 207666 states and 221936 transitions. Word has length 631 [2018-10-23 20:23:12,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:23:12,551 INFO L481 AbstractCegarLoop]: Abstraction has 207666 states and 221936 transitions. [2018-10-23 20:23:12,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:23:12,552 INFO L276 IsEmpty]: Start isEmpty. Operand 207666 states and 221936 transitions. [2018-10-23 20:23:12,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 837 [2018-10-23 20:23:12,615 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:23:12,616 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:23:12,616 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:23:12,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:23:12,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1930424204, now seen corresponding path program 1 times [2018-10-23 20:23:12,617 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:23:12,617 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:23:12,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:23:12,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:23:12,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:23:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:23:14,385 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 471 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2018-10-23 20:23:14,385 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:23:14,386 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:23:14,386 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 20:23:14,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 20:23:14,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 20:23:14,387 INFO L87 Difference]: Start difference. First operand 207666 states and 221936 transitions. Second operand 5 states. [2018-10-23 20:23:29,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:23:29,168 INFO L93 Difference]: Finished difference Result 515460 states and 550273 transitions. [2018-10-23 20:23:29,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 20:23:29,168 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 836 [2018-10-23 20:23:29,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:23:29,543 INFO L225 Difference]: With dead ends: 515460 [2018-10-23 20:23:29,544 INFO L226 Difference]: Without dead ends: 308584 [2018-10-23 20:23:30,597 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 20:23:30,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308584 states. Received shutdown request... [2018-10-23 20:23:31,891 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 20:23:31,895 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 20:23:31,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:23:31 BoogieIcfgContainer [2018-10-23 20:23:31,895 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 20:23:31,896 INFO L168 Benchmark]: Toolchain (without parser) took 231363.14 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 810.6 MB in the end (delta: 606.4 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-10-23 20:23:31,897 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 20:23:31,898 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2621.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-23 20:23:31,898 INFO L168 Benchmark]: Boogie Procedure Inliner took 836.31 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 821.0 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2018-10-23 20:23:31,900 INFO L168 Benchmark]: Boogie Preprocessor took 426.32 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 63.5 MB). Peak memory consumption was 63.5 MB. Max. memory is 7.1 GB. [2018-10-23 20:23:31,900 INFO L168 Benchmark]: RCFGBuilder took 12457.90 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 256.4 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 617.3 MB. Max. memory is 7.1 GB. [2018-10-23 20:23:31,901 INFO L168 Benchmark]: TraceAbstraction took 215015.57 ms. Allocated memory was 2.6 GB in the beginning and 3.4 GB in the end (delta: 832.0 MB). Free memory was 2.1 GB in the beginning and 810.6 MB in the end (delta: 1.3 GB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-10-23 20:23:31,907 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 2621.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 836.31 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 821.0 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 426.32 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 63.5 MB). Peak memory consumption was 63.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12457.90 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 256.4 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 617.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215015.57 ms. Allocated memory was 2.6 GB in the beginning and 3.4 GB in the end (delta: 832.0 MB). Free memory was 2.1 GB in the beginning and 810.6 MB in the end (delta: 1.3 GB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 174). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 214.9s OverallTime, 11 OverallIterations, 5 TraceHistogramMax, 189.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10179 SDtfs, 40703 SDslu, 4579 SDs, 0 SdLazy, 81387 SolverSat, 19683 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 153.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1067 GetRequests, 1008 SyntacticMatches, 10 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=207666occurred in iteration=10, 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: 11.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 52657 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 5106 NumberOfCodeBlocks, 5106 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 5092 ConstructedInterpolants, 0 QuantifiedInterpolants, 8304818 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1333 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 14 InterpolantComputations, 11 PerfectInterpolantSequences, 4665/4769 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown