java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label13_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 02:48:54,056 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 02:48:54,058 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 02:48:54,070 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 02:48:54,070 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 02:48:54,073 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 02:48:54,074 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 02:48:54,076 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 02:48:54,078 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 02:48:54,079 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 02:48:54,080 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 02:48:54,080 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 02:48:54,081 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 02:48:54,082 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 02:48:54,083 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 02:48:54,084 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 02:48:54,085 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 02:48:54,087 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 02:48:54,089 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 02:48:54,090 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 02:48:54,091 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 02:48:54,092 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 02:48:54,095 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 02:48:54,095 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 02:48:54,095 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 02:48:54,096 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 02:48:54,097 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 02:48:54,098 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 02:48:54,099 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 02:48:54,100 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 02:48:54,100 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 02:48:54,101 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 02:48:54,101 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 02:48:54,101 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 02:48:54,103 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 02:48:54,103 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 02:48:54,104 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-24 02:48:54,123 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 02:48:54,123 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 02:48:54,124 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 02:48:54,125 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 02:48:54,125 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 02:48:54,126 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 02:48:54,126 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 02:48:54,126 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 02:48:54,126 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 02:48:54,130 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 02:48:54,130 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 02:48:54,130 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 02:48:54,130 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 02:48:54,130 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 02:48:54,131 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 02:48:54,131 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 02:48:54,131 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 02:48:54,131 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 02:48:54,132 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 02:48:54,133 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 02:48:54,133 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 02:48:54,133 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 02:48:54,133 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 02:48:54,133 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 02:48:54,134 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 02:48:54,134 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 02:48:54,134 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 02:48:54,134 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 02:48:54,202 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 02:48:54,221 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 02:48:54,228 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 02:48:54,229 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 02:48:54,230 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 02:48:54,231 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label13_true-unreach-call.c [2018-07-24 02:48:54,601 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebc686714/4709431620d641dea4d90872101f1353/FLAGf78acf6da [2018-07-24 02:48:55,125 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 02:48:55,126 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label13_true-unreach-call.c [2018-07-24 02:48:55,177 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebc686714/4709431620d641dea4d90872101f1353/FLAGf78acf6da [2018-07-24 02:48:55,202 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebc686714/4709431620d641dea4d90872101f1353 [2018-07-24 02:48:55,215 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 02:48:55,218 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 02:48:55,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 02:48:55,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 02:48:55,230 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 02:48:55,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:48:55" (1/1) ... [2018-07-24 02:48:55,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5928fdf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:55, skipping insertion in model container [2018-07-24 02:48:55,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:48:55" (1/1) ... [2018-07-24 02:48:55,658 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 02:48:56,765 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 02:48:56,781 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 02:48:57,549 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 02:48:57,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:57 WrapperNode [2018-07-24 02:48:57,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 02:48:57,883 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 02:48:57,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 02:48:57,883 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 02:48:57,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:57" (1/1) ... [2018-07-24 02:48:58,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:57" (1/1) ... [2018-07-24 02:48:58,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 02:48:58,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 02:48:58,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 02:48:58,799 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 02:49:00,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:57" (1/1) ... [2018-07-24 02:49:00,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:57" (1/1) ... [2018-07-24 02:49:00,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:57" (1/1) ... [2018-07-24 02:49:00,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:57" (1/1) ... [2018-07-24 02:49:00,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:57" (1/1) ... [2018-07-24 02:49:00,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:57" (1/1) ... [2018-07-24 02:49:00,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:57" (1/1) ... [2018-07-24 02:49:00,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 02:49:00,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 02:49:00,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 02:49:00,525 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 02:49:00,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 02:49:00,599 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 02:49:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 02:49:00,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 02:49:16,459 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 02:49:16,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:49:16 BoogieIcfgContainer [2018-07-24 02:49:16,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 02:49:16,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 02:49:16,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 02:49:16,465 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 02:49:16,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:48:55" (1/3) ... [2018-07-24 02:49:16,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0f5c06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:49:16, skipping insertion in model container [2018-07-24 02:49:16,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:48:57" (2/3) ... [2018-07-24 02:49:16,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0f5c06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:49:16, skipping insertion in model container [2018-07-24 02:49:16,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:49:16" (3/3) ... [2018-07-24 02:49:16,469 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label13_true-unreach-call.c [2018-07-24 02:49:16,481 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 02:49:16,491 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 02:49:16,555 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 02:49:16,556 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 02:49:16,556 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 02:49:16,558 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 02:49:16,558 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 02:49:16,558 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 02:49:16,558 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 02:49:16,558 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 02:49:16,559 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 02:49:16,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-07-24 02:49:16,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-07-24 02:49:16,614 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:49:16,616 INFO L353 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, 1, 1, 1] [2018-07-24 02:49:16,618 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:49:16,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1482679290, now seen corresponding path program 1 times [2018-07-24 02:49:16,624 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:49:16,624 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:49:16,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:49:16,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:49:16,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:49:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:49:17,152 WARN L169 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-07-24 02:49:17,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:49:17,170 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:49:17,170 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 02:49:17,176 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:49:17,192 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:49:17,193 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:49:17,196 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-07-24 02:49:31,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:49:31,612 INFO L93 Difference]: Finished difference Result 3896 states and 7286 transitions. [2018-07-24 02:49:31,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:49:31,614 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2018-07-24 02:49:31,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:49:31,657 INFO L225 Difference]: With dead ends: 3896 [2018-07-24 02:49:31,657 INFO L226 Difference]: Without dead ends: 2790 [2018-07-24 02:49:31,670 INFO L573 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 [2018-07-24 02:49:31,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2790 states. [2018-07-24 02:49:31,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2790 to 1945. [2018-07-24 02:49:31,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1945 states. [2018-07-24 02:49:31,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1945 states to 1945 states and 3412 transitions. [2018-07-24 02:49:31,828 INFO L78 Accepts]: Start accepts. Automaton has 1945 states and 3412 transitions. Word has length 58 [2018-07-24 02:49:31,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:49:31,829 INFO L471 AbstractCegarLoop]: Abstraction has 1945 states and 3412 transitions. [2018-07-24 02:49:31,829 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:49:31,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1945 states and 3412 transitions. [2018-07-24 02:49:31,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-07-24 02:49:31,840 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:49:31,840 INFO L353 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:49:31,841 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:49:31,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1393057410, now seen corresponding path program 1 times [2018-07-24 02:49:31,841 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:49:31,841 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:49:31,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:49:31,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:49:31,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:49:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:49:32,762 WARN L169 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 28 [2018-07-24 02:49:33,079 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:49:33,079 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:49:33,080 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:49:33,082 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 02:49:33,083 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 02:49:33,083 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-24 02:49:33,083 INFO L87 Difference]: Start difference. First operand 1945 states and 3412 transitions. Second operand 5 states. [2018-07-24 02:49:33,338 WARN L169 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-07-24 02:49:52,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:49:52,807 INFO L93 Difference]: Finished difference Result 7061 states and 12475 transitions. [2018-07-24 02:49:52,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 02:49:52,808 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2018-07-24 02:49:52,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:49:52,837 INFO L225 Difference]: With dead ends: 7061 [2018-07-24 02:49:52,837 INFO L226 Difference]: Without dead ends: 5118 [2018-07-24 02:49:52,843 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-24 02:49:52,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5118 states. [2018-07-24 02:49:52,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5118 to 5117. [2018-07-24 02:49:52,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5117 states. [2018-07-24 02:49:52,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 7612 transitions. [2018-07-24 02:49:52,956 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 7612 transitions. Word has length 124 [2018-07-24 02:49:52,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:49:52,956 INFO L471 AbstractCegarLoop]: Abstraction has 5117 states and 7612 transitions. [2018-07-24 02:49:52,956 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 02:49:52,957 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 7612 transitions. [2018-07-24 02:49:52,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-07-24 02:49:52,961 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:49:52,962 INFO L353 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, 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] [2018-07-24 02:49:52,962 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:49:52,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1220810363, now seen corresponding path program 1 times [2018-07-24 02:49:52,963 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:49:52,963 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:49:52,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:49:52,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:49:52,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:49:53,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:49:53,416 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 4 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:49:53,416 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:49:53,417 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 02:49:53,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:49:53,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:49:53,516 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:49:53,981 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 47 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:49:54,002 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 02:49:54,003 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-07-24 02:49:54,004 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 02:49:54,004 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 02:49:54,004 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 02:49:54,004 INFO L87 Difference]: Start difference. First operand 5117 states and 7612 transitions. Second operand 8 states. [2018-07-24 02:50:51,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:50:51,910 INFO L93 Difference]: Finished difference Result 37293 states and 59803 transitions. [2018-07-24 02:50:51,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-24 02:50:51,911 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 184 [2018-07-24 02:50:51,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:50:52,057 INFO L225 Difference]: With dead ends: 37293 [2018-07-24 02:50:52,057 INFO L226 Difference]: Without dead ends: 32966 [2018-07-24 02:50:52,070 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=150, Unknown=0, NotChecked=0, Total=240 [2018-07-24 02:50:52,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32966 states. [2018-07-24 02:50:52,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32966 to 28037. [2018-07-24 02:50:52,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28037 states. [2018-07-24 02:50:52,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28037 states to 28037 states and 35213 transitions. [2018-07-24 02:50:52,626 INFO L78 Accepts]: Start accepts. Automaton has 28037 states and 35213 transitions. Word has length 184 [2018-07-24 02:50:52,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:50:52,626 INFO L471 AbstractCegarLoop]: Abstraction has 28037 states and 35213 transitions. [2018-07-24 02:50:52,627 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-24 02:50:52,627 INFO L276 IsEmpty]: Start isEmpty. Operand 28037 states and 35213 transitions. [2018-07-24 02:50:52,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2018-07-24 02:50:52,635 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:50:52,635 INFO L353 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:50:52,635 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:50:52,636 INFO L82 PathProgramCache]: Analyzing trace with hash 705131765, now seen corresponding path program 1 times [2018-07-24 02:50:52,636 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:50:52,636 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:50:52,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:50:52,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:50:52,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:50:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:50:53,077 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 111 proven. 4 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-07-24 02:50:53,078 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:50:53,078 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 02:50:53,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:50:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:50:53,188 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:50:53,255 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:50:53,291 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 02:50:53,292 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-07-24 02:50:53,293 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:50:53,293 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:50:53,293 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:50:53,294 INFO L87 Difference]: Start difference. First operand 28037 states and 35213 transitions. Second operand 4 states. [2018-07-24 02:51:04,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:51:04,914 INFO L93 Difference]: Finished difference Result 87700 states and 112552 transitions. [2018-07-24 02:51:04,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:51:04,914 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 264 [2018-07-24 02:51:04,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:51:04,991 INFO L225 Difference]: With dead ends: 87700 [2018-07-24 02:51:04,991 INFO L226 Difference]: Without dead ends: 47038 [2018-07-24 02:51:05,041 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:51:05,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47038 states. [2018-07-24 02:51:05,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47038 to 29584. [2018-07-24 02:51:05,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29584 states. [2018-07-24 02:51:05,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29584 states to 29584 states and 36726 transitions. [2018-07-24 02:51:05,620 INFO L78 Accepts]: Start accepts. Automaton has 29584 states and 36726 transitions. Word has length 264 [2018-07-24 02:51:05,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:51:05,620 INFO L471 AbstractCegarLoop]: Abstraction has 29584 states and 36726 transitions. [2018-07-24 02:51:05,620 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:51:05,621 INFO L276 IsEmpty]: Start isEmpty. Operand 29584 states and 36726 transitions. [2018-07-24 02:51:05,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2018-07-24 02:51:05,631 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:51:05,632 INFO L353 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, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:51:05,632 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:51:05,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1911969729, now seen corresponding path program 1 times [2018-07-24 02:51:05,632 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:51:05,633 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:51:05,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:51:05,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:51:05,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:51:05,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:51:06,123 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 354 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-07-24 02:51:06,124 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:51:06,124 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:51:06,125 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:51:06,125 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:51:06,125 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:51:06,126 INFO L87 Difference]: Start difference. First operand 29584 states and 36726 transitions. Second operand 4 states. [2018-07-24 02:51:19,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:51:19,898 INFO L93 Difference]: Finished difference Result 89931 states and 115608 transitions. [2018-07-24 02:51:19,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:51:19,899 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 338 [2018-07-24 02:51:19,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:51:19,982 INFO L225 Difference]: With dead ends: 89931 [2018-07-24 02:51:19,982 INFO L226 Difference]: Without dead ends: 61137 [2018-07-24 02:51:20,019 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:51:20,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61137 states. [2018-07-24 02:51:21,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61137 to 61102. [2018-07-24 02:51:21,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61102 states. [2018-07-24 02:51:21,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61102 states to 61102 states and 74389 transitions. [2018-07-24 02:51:21,090 INFO L78 Accepts]: Start accepts. Automaton has 61102 states and 74389 transitions. Word has length 338 [2018-07-24 02:51:21,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:51:21,091 INFO L471 AbstractCegarLoop]: Abstraction has 61102 states and 74389 transitions. [2018-07-24 02:51:21,091 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:51:21,091 INFO L276 IsEmpty]: Start isEmpty. Operand 61102 states and 74389 transitions. [2018-07-24 02:51:21,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2018-07-24 02:51:21,107 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:51:21,107 INFO L353 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, 5, 5, 5, 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] [2018-07-24 02:51:21,108 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:51:21,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1195697525, now seen corresponding path program 1 times [2018-07-24 02:51:21,108 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:51:21,108 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:51:21,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:51:21,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:51:21,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:51:21,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:51:21,566 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2018-07-24 02:51:21,566 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:51:21,566 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 02:51:21,567 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 02:51:21,567 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 02:51:21,568 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 02:51:21,568 INFO L87 Difference]: Start difference. First operand 61102 states and 74389 transitions. Second operand 3 states. [2018-07-24 02:51:29,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:51:29,008 INFO L93 Difference]: Finished difference Result 163962 states and 201286 transitions. [2018-07-24 02:51:29,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 02:51:29,009 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 428 [2018-07-24 02:51:29,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:51:29,149 INFO L225 Difference]: With dead ends: 163962 [2018-07-24 02:51:29,149 INFO L226 Difference]: Without dead ends: 103650 [2018-07-24 02:51:29,200 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 02:51:29,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103650 states. [2018-07-24 02:51:30,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103650 to 103648. [2018-07-24 02:51:30,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103648 states. [2018-07-24 02:51:30,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103648 states to 103648 states and 120779 transitions. [2018-07-24 02:51:30,263 INFO L78 Accepts]: Start accepts. Automaton has 103648 states and 120779 transitions. Word has length 428 [2018-07-24 02:51:30,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:51:30,264 INFO L471 AbstractCegarLoop]: Abstraction has 103648 states and 120779 transitions. [2018-07-24 02:51:30,264 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 02:51:30,264 INFO L276 IsEmpty]: Start isEmpty. Operand 103648 states and 120779 transitions. [2018-07-24 02:51:30,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2018-07-24 02:51:30,286 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:51:30,286 INFO L353 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, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:51:30,287 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:51:30,287 INFO L82 PathProgramCache]: Analyzing trace with hash -550479291, now seen corresponding path program 1 times [2018-07-24 02:51:30,287 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:51:30,287 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:51:30,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:51:30,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:51:30,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:51:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:51:31,087 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 602 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2018-07-24 02:51:31,087 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:51:31,088 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:51:31,090 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 02:51:31,091 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 02:51:31,091 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 02:51:31,091 INFO L87 Difference]: Start difference. First operand 103648 states and 120779 transitions. Second operand 5 states. [2018-07-24 02:51:51,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:51:51,768 INFO L93 Difference]: Finished difference Result 314769 states and 367702 transitions. [2018-07-24 02:51:51,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 02:51:51,769 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 461 [2018-07-24 02:51:51,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:51:52,096 INFO L225 Difference]: With dead ends: 314769 [2018-07-24 02:51:52,096 INFO L226 Difference]: Without dead ends: 211911 [2018-07-24 02:51:52,198 INFO L573 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 [2018-07-24 02:51:52,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211911 states. [2018-07-24 02:51:54,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211911 to 190432. [2018-07-24 02:51:54,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190432 states. [2018-07-24 02:51:54,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190432 states to 190432 states and 217246 transitions. [2018-07-24 02:51:54,907 INFO L78 Accepts]: Start accepts. Automaton has 190432 states and 217246 transitions. Word has length 461 [2018-07-24 02:51:54,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:51:54,907 INFO L471 AbstractCegarLoop]: Abstraction has 190432 states and 217246 transitions. [2018-07-24 02:51:54,907 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 02:51:54,907 INFO L276 IsEmpty]: Start isEmpty. Operand 190432 states and 217246 transitions. [2018-07-24 02:51:54,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2018-07-24 02:51:54,928 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:51:54,929 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2018-07-24 02:51:54,929 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:51:54,929 INFO L82 PathProgramCache]: Analyzing trace with hash -609154574, now seen corresponding path program 1 times [2018-07-24 02:51:54,929 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:51:54,930 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:51:54,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:51:54,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:51:54,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:51:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:51:55,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 551 proven. 5 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2018-07-24 02:51:55,650 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:51:55,650 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 02:51:55,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:51:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:51:55,823 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:51:56,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 551 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2018-07-24 02:51:56,031 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 02:51:56,031 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-07-24 02:51:56,032 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 02:51:56,032 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 02:51:56,032 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 02:51:56,032 INFO L87 Difference]: Start difference. First operand 190432 states and 217246 transitions. Second operand 5 states. [2018-07-24 02:52:09,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:52:09,177 INFO L93 Difference]: Finished difference Result 383209 states and 438298 transitions. [2018-07-24 02:52:09,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:52:09,178 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 496 [2018-07-24 02:52:09,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:52:09,455 INFO L225 Difference]: With dead ends: 383209 [2018-07-24 02:52:09,455 INFO L226 Difference]: Without dead ends: 193567 [2018-07-24 02:52:09,557 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 497 SyntacticMatches, 5 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 02:52:09,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193567 states. [2018-07-24 02:52:11,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193567 to 188834. [2018-07-24 02:52:11,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188834 states. [2018-07-24 02:52:12,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188834 states to 188834 states and 207653 transitions. [2018-07-24 02:52:12,800 INFO L78 Accepts]: Start accepts. Automaton has 188834 states and 207653 transitions. Word has length 496 [2018-07-24 02:52:12,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:52:12,801 INFO L471 AbstractCegarLoop]: Abstraction has 188834 states and 207653 transitions. [2018-07-24 02:52:12,801 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 02:52:12,801 INFO L276 IsEmpty]: Start isEmpty. Operand 188834 states and 207653 transitions. [2018-07-24 02:52:12,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2018-07-24 02:52:12,817 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:52:12,817 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2018-07-24 02:52:12,817 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:52:12,818 INFO L82 PathProgramCache]: Analyzing trace with hash 325343511, now seen corresponding path program 1 times [2018-07-24 02:52:12,818 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:52:12,818 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:52:12,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:52:12,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:52:12,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:52:12,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:52:13,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 279 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2018-07-24 02:52:13,298 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:52:13,298 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 02:52:13,298 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 02:52:13,299 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 02:52:13,299 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 02:52:13,299 INFO L87 Difference]: Start difference. First operand 188834 states and 207653 transitions. Second operand 3 states. [2018-07-24 02:52:17,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:52:17,826 INFO L93 Difference]: Finished difference Result 375280 states and 412420 transitions. [2018-07-24 02:52:17,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 02:52:17,826 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 548 [2018-07-24 02:52:17,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:52:18,021 INFO L225 Difference]: With dead ends: 375280 [2018-07-24 02:52:18,021 INFO L226 Difference]: Without dead ends: 187235 [2018-07-24 02:52:18,116 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 02:52:18,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187235 states. [2018-07-24 02:52:24,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187235 to 187232. [2018-07-24 02:52:24,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187232 states. [2018-07-24 02:52:24,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187232 states to 187232 states and 205530 transitions. [2018-07-24 02:52:24,672 INFO L78 Accepts]: Start accepts. Automaton has 187232 states and 205530 transitions. Word has length 548 [2018-07-24 02:52:24,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:52:24,674 INFO L471 AbstractCegarLoop]: Abstraction has 187232 states and 205530 transitions. [2018-07-24 02:52:24,674 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 02:52:24,674 INFO L276 IsEmpty]: Start isEmpty. Operand 187232 states and 205530 transitions. [2018-07-24 02:52:24,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 980 [2018-07-24 02:52:24,763 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:52:24,764 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:52:24,764 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:52:24,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1316439920, now seen corresponding path program 1 times [2018-07-24 02:52:24,765 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:52:24,765 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:52:24,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:52:24,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:52:24,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:52:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:52:26,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 1001 proven. 7 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2018-07-24 02:52:26,087 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:52:26,087 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 02:52:26,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:52:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:52:26,425 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:52:27,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 1001 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2018-07-24 02:52:27,369 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 02:52:27,369 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-07-24 02:52:27,371 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 02:52:27,371 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 02:52:27,371 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 02:52:27,372 INFO L87 Difference]: Start difference. First operand 187232 states and 205530 transitions. Second operand 5 states. [2018-07-24 02:52:41,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:52:41,666 INFO L93 Difference]: Finished difference Result 448547 states and 493106 transitions. [2018-07-24 02:52:41,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 02:52:41,667 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 979 [2018-07-24 02:52:41,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:52:41,981 INFO L225 Difference]: With dead ends: 448547 [2018-07-24 02:52:41,982 INFO L226 Difference]: Without dead ends: 262105 [2018-07-24 02:52:42,085 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 984 GetRequests, 979 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 02:52:42,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262105 states. [2018-07-24 02:52:44,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262105 to 260500. [2018-07-24 02:52:44,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260500 states. [2018-07-24 02:52:45,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260500 states to 260500 states and 278694 transitions. [2018-07-24 02:52:45,002 INFO L78 Accepts]: Start accepts. Automaton has 260500 states and 278694 transitions. Word has length 979 [2018-07-24 02:52:45,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:52:45,003 INFO L471 AbstractCegarLoop]: Abstraction has 260500 states and 278694 transitions. [2018-07-24 02:52:45,003 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 02:52:45,003 INFO L276 IsEmpty]: Start isEmpty. Operand 260500 states and 278694 transitions. [2018-07-24 02:52:45,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1101 [2018-07-24 02:52:45,120 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:52:45,122 INFO L353 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:52:45,122 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:52:45,122 INFO L82 PathProgramCache]: Analyzing trace with hash 965018288, now seen corresponding path program 1 times [2018-07-24 02:52:45,122 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:52:45,123 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:52:45,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:52:45,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:52:45,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:52:45,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-07-24 02:52:47,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1589 backedges. 822 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2018-07-24 02:52:47,582 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:52:47,582 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 02:52:47,582 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 02:52:47,583 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 02:52:47,583 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-24 02:52:47,583 INFO L87 Difference]: Start difference. First operand 260500 states and 278694 transitions. Second operand 5 states. [2018-07-24 02:52:47,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-24 02:52:47,584 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 02:52:47,588 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 02:52:47,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 02:52:47 BoogieIcfgContainer [2018-07-24 02:52:47,589 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 02:52:47,590 INFO L168 Benchmark]: Toolchain (without parser) took 232373.23 ms. Allocated memory was 1.5 GB in the beginning and 4.4 GB in the end (delta: 2.9 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -447.4 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-07-24 02:52:47,591 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 02:52:47,591 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2661.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 327.7 MB). Peak memory consumption was 327.7 MB. Max. memory is 7.1 GB. [2018-07-24 02:52:47,592 INFO L168 Benchmark]: Boogie Procedure Inliner took 915.20 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 287.3 MB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -560.5 MB). Peak memory consumption was 217.0 MB. Max. memory is 7.1 GB. [2018-07-24 02:52:47,593 INFO L168 Benchmark]: Boogie Preprocessor took 1725.83 ms. Allocated memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: 660.6 MB). Free memory was 1.6 GB in the beginning and 2.2 GB in the end (delta: -610.8 MB). Peak memory consumption was 137.8 MB. Max. memory is 7.1 GB. [2018-07-24 02:52:47,594 INFO L168 Benchmark]: RCFGBuilder took 15936.18 ms. Allocated memory was 2.5 GB in the beginning and 3.0 GB in the end (delta: 479.2 MB). Free memory was 2.2 GB in the beginning and 2.7 GB in the end (delta: -470.3 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-07-24 02:52:47,595 INFO L168 Benchmark]: TraceAbstraction took 211127.25 ms. Allocated memory was 3.0 GB in the beginning and 4.4 GB in the end (delta: 1.5 GB). Free memory was 2.7 GB in the beginning and 1.8 GB in the end (delta: 866.6 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-07-24 02:52:47,601 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2661.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 327.7 MB). Peak memory consumption was 327.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 915.20 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 287.3 MB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -560.5 MB). Peak memory consumption was 217.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1725.83 ms. Allocated memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: 660.6 MB). Free memory was 1.6 GB in the beginning and 2.2 GB in the end (delta: -610.8 MB). Peak memory consumption was 137.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 15936.18 ms. Allocated memory was 2.5 GB in the beginning and 3.0 GB in the end (delta: 479.2 MB). Free memory was 2.2 GB in the beginning and 2.7 GB in the end (delta: -470.3 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 211127.25 ms. Allocated memory was 3.0 GB in the beginning and 4.4 GB in the end (delta: 1.5 GB). Free memory was 2.7 GB in the beginning and 1.8 GB in the end (delta: 866.6 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 183]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 183). Cancelled while BasicCegarLoop was constructing difference of abstraction (260500states) and interpolant automaton (currently 2 states, 5 states before enhancement), while ReachableStatesComputation was computing reachable states (1 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 211.0s OverallTime, 11 OverallIterations, 7 TraceHistogramMax, 179.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7586 SDtfs, 36245 SDslu, 3178 SDs, 0 SdLazy, 66440 SolverSat, 17261 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 149.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1979 GetRequests, 1930 SyntacticMatches, 11 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=260500occurred 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: 18.9s AutomataMinimizationTime, 10 MinimizatonAttempts, 51086 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 6903 NumberOfCodeBlocks, 6903 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 6888 ConstructedInterpolants, 0 QuantifiedInterpolants, 9291519 SizeOfPredicates, 8 NumberOfNonLiveVariables, 2454 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 15 InterpolantComputations, 10 PerfectInterpolantSequences, 9615/9690 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label13_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_02-52-47-619.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label13_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_02-52-47-619.csv Completed graceful shutdown