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_label52_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 02:55:47,344 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 02:55:47,347 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 02:55:47,359 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 02:55:47,359 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 02:55:47,360 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 02:55:47,362 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 02:55:47,364 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 02:55:47,365 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 02:55:47,366 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 02:55:47,367 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 02:55:47,368 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 02:55:47,369 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 02:55:47,370 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 02:55:47,371 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 02:55:47,372 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 02:55:47,373 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 02:55:47,375 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 02:55:47,377 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 02:55:47,379 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 02:55:47,380 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 02:55:47,381 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 02:55:47,384 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-24 02:55:47,391 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 02:55:47,391 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 02:55:47,392 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 02:55:47,393 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 02:55:47,393 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 02:55:47,410 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 02:55:47,410 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 02:55:47,411 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 02:55:47,411 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 02:55:47,412 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 02:55:47,412 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 02:55:47,412 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 02:55:47,413 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 02:55:47,413 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 02:55:47,413 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 02:55:47,413 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 02:55:47,413 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 02:55:47,414 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 02:55:47,414 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 02:55:47,414 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 02:55:47,415 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 02:55:47,415 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 02:55:47,415 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 02:55:47,415 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 02:55:47,415 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 02:55:47,416 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 02:55:47,416 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 02:55:47,416 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 02:55:47,416 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 02:55:47,416 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 02:55:47,417 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 02:55:47,417 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 02:55:47,417 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 02:55:47,487 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 02:55:47,502 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 02:55:47,507 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 02:55:47,509 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 02:55:47,510 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 02:55:47,510 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label52_true-unreach-call.c [2018-07-24 02:55:47,866 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94e347d11/dbe81e19a72f467081d40b127200c002/FLAGe6a18c351 [2018-07-24 02:55:48,334 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 02:55:48,335 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label52_true-unreach-call.c [2018-07-24 02:55:48,378 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94e347d11/dbe81e19a72f467081d40b127200c002/FLAGe6a18c351 [2018-07-24 02:55:48,401 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94e347d11/dbe81e19a72f467081d40b127200c002 [2018-07-24 02:55:48,413 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 02:55:48,415 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 02:55:48,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 02:55:48,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 02:55:48,427 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 02:55:48,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:55:48" (1/1) ... [2018-07-24 02:55:48,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a05c11f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:48, skipping insertion in model container [2018-07-24 02:55:48,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:55:48" (1/1) ... [2018-07-24 02:55:48,851 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 02:55:50,005 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 02:55:50,024 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 02:55:50,948 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 02:55:51,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:51 WrapperNode [2018-07-24 02:55:51,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 02:55:51,334 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 02:55:51,334 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 02:55:51,334 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 02:55:51,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:51" (1/1) ... [2018-07-24 02:55:51,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:51" (1/1) ... [2018-07-24 02:55:52,273 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 02:55:52,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 02:55:52,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 02:55:52,274 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 02:55:53,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:51" (1/1) ... [2018-07-24 02:55:53,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:51" (1/1) ... [2018-07-24 02:55:53,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:51" (1/1) ... [2018-07-24 02:55:53,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:51" (1/1) ... [2018-07-24 02:55:53,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:51" (1/1) ... [2018-07-24 02:55:53,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:51" (1/1) ... [2018-07-24 02:55:53,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:51" (1/1) ... [2018-07-24 02:55:54,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 02:55:54,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 02:55:54,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 02:55:54,071 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 02:55:54,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:51" (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 02:55:54,143 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 02:55:54,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 02:55:54,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 02:56:06,590 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 02:56:06,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:56:06 BoogieIcfgContainer [2018-07-24 02:56:06,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 02:56:06,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 02:56:06,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 02:56:06,596 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 02:56:06,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:55:48" (1/3) ... [2018-07-24 02:56:06,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ebb9119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:56:06, skipping insertion in model container [2018-07-24 02:56:06,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:55:51" (2/3) ... [2018-07-24 02:56:06,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ebb9119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:56:06, skipping insertion in model container [2018-07-24 02:56:06,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:56:06" (3/3) ... [2018-07-24 02:56:06,600 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label52_true-unreach-call.c [2018-07-24 02:56:06,609 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 02:56:06,618 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 02:56:06,679 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 02:56:06,680 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 02:56:06,680 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 02:56:06,680 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 02:56:06,680 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 02:56:06,681 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 02:56:06,681 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 02:56:06,681 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 02:56:06,681 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 02:56:06,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-07-24 02:56:06,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-07-24 02:56:06,735 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:56:06,736 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, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:56:06,737 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:56:06,741 INFO L82 PathProgramCache]: Analyzing trace with hash -2101344302, now seen corresponding path program 1 times [2018-07-24 02:56:06,742 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:56:06,743 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:56:06,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:56:06,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:56:06,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:56:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:56:07,363 WARN L169 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-07-24 02:56:07,790 WARN L169 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 28 [2018-07-24 02:56:07,959 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 4 [2018-07-24 02:56:08,078 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 02:56:08,081 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:56:08,081 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:56:08,087 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 02:56:08,104 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 02:56:08,105 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-24 02:56:08,108 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 5 states. [2018-07-24 02:56:08,394 WARN L169 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-07-24 02:56:26,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:56:26,074 INFO L93 Difference]: Finished difference Result 4624 states and 8784 transitions. [2018-07-24 02:56:26,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 02:56:26,076 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2018-07-24 02:56:26,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:56:26,119 INFO L225 Difference]: With dead ends: 4624 [2018-07-24 02:56:26,120 INFO L226 Difference]: Without dead ends: 3515 [2018-07-24 02:56:26,130 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-24 02:56:26,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3515 states. [2018-07-24 02:56:26,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3515 to 3514. [2018-07-24 02:56:26,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3514 states. [2018-07-24 02:56:26,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3514 states to 3514 states and 5233 transitions. [2018-07-24 02:56:26,304 INFO L78 Accepts]: Start accepts. Automaton has 3514 states and 5233 transitions. Word has length 65 [2018-07-24 02:56:26,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:56:26,305 INFO L471 AbstractCegarLoop]: Abstraction has 3514 states and 5233 transitions. [2018-07-24 02:56:26,305 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 02:56:26,306 INFO L276 IsEmpty]: Start isEmpty. Operand 3514 states and 5233 transitions. [2018-07-24 02:56:26,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-07-24 02:56:26,314 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:56:26,316 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, 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] [2018-07-24 02:56:26,317 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:56:26,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1291398214, now seen corresponding path program 1 times [2018-07-24 02:56:26,317 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:56:26,318 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:56:26,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:56:26,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:56:26,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:56:26,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:56:26,661 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:56:26,662 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:56:26,662 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:56:26,664 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 02:56:26,665 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 02:56:26,665 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 02:56:26,665 INFO L87 Difference]: Start difference. First operand 3514 states and 5233 transitions. Second operand 5 states. [2018-07-24 02:56:48,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:56:48,421 INFO L93 Difference]: Finished difference Result 12006 states and 19597 transitions. [2018-07-24 02:56:48,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 02:56:48,421 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 191 [2018-07-24 02:56:48,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:56:48,468 INFO L225 Difference]: With dead ends: 12006 [2018-07-24 02:56:48,468 INFO L226 Difference]: Without dead ends: 9282 [2018-07-24 02:56:48,474 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 02:56:48,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9282 states. [2018-07-24 02:56:48,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9282 to 9110. [2018-07-24 02:56:48,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9110 states. [2018-07-24 02:56:48,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9110 states to 9110 states and 13148 transitions. [2018-07-24 02:56:48,677 INFO L78 Accepts]: Start accepts. Automaton has 9110 states and 13148 transitions. Word has length 191 [2018-07-24 02:56:48,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:56:48,678 INFO L471 AbstractCegarLoop]: Abstraction has 9110 states and 13148 transitions. [2018-07-24 02:56:48,678 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 02:56:48,678 INFO L276 IsEmpty]: Start isEmpty. Operand 9110 states and 13148 transitions. [2018-07-24 02:56:48,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-07-24 02:56:48,683 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:56:48,683 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, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 02:56:48,684 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:56:48,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1610852183, now seen corresponding path program 1 times [2018-07-24 02:56:48,684 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:56:48,684 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:56:48,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:56:48,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:56:48,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:56:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:56:49,088 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 125 proven. 4 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-07-24 02:56:49,088 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:56:49,089 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 02:56:49,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:56:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:56:49,241 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:56:49,316 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:56:49,347 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 02:56:49,348 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-07-24 02:56:49,349 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:56:49,349 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:56:49,352 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:56:49,352 INFO L87 Difference]: Start difference. First operand 9110 states and 13148 transitions. Second operand 4 states. [2018-07-24 02:57:00,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:57:00,703 INFO L93 Difference]: Finished difference Result 31692 states and 46901 transitions. [2018-07-24 02:57:00,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:57:00,709 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 234 [2018-07-24 02:57:00,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:57:00,828 INFO L225 Difference]: With dead ends: 31692 [2018-07-24 02:57:00,828 INFO L226 Difference]: Without dead ends: 23372 [2018-07-24 02:57:00,847 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 234 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 02:57:00,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23372 states. [2018-07-24 02:57:01,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23372 to 13841. [2018-07-24 02:57:01,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13841 states. [2018-07-24 02:57:01,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13841 states to 13841 states and 18825 transitions. [2018-07-24 02:57:01,267 INFO L78 Accepts]: Start accepts. Automaton has 13841 states and 18825 transitions. Word has length 234 [2018-07-24 02:57:01,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:57:01,268 INFO L471 AbstractCegarLoop]: Abstraction has 13841 states and 18825 transitions. [2018-07-24 02:57:01,268 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:57:01,269 INFO L276 IsEmpty]: Start isEmpty. Operand 13841 states and 18825 transitions. [2018-07-24 02:57:01,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2018-07-24 02:57:01,276 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:57:01,277 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:57:01,277 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:57:01,277 INFO L82 PathProgramCache]: Analyzing trace with hash -426676326, now seen corresponding path program 1 times [2018-07-24 02:57:01,277 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:57:01,278 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:57:01,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:57:01,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:57:01,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:57:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:57:01,733 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 125 proven. 4 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-07-24 02:57:01,734 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:57:01,734 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 02:57:01,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:57:02,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:57:02,063 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:57:02,122 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:57:02,151 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 02:57:02,151 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-07-24 02:57:02,152 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:57:02,153 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:57:02,153 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:57:02,154 INFO L87 Difference]: Start difference. First operand 13841 states and 18825 transitions. Second operand 4 states. [2018-07-24 02:57:12,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:57:12,744 INFO L93 Difference]: Finished difference Result 45070 states and 62115 transitions. [2018-07-24 02:57:12,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:57:12,745 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 248 [2018-07-24 02:57:12,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:57:12,813 INFO L225 Difference]: With dead ends: 45070 [2018-07-24 02:57:12,813 INFO L226 Difference]: Without dead ends: 32019 [2018-07-24 02:57:12,837 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 248 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 02:57:12,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32019 states. [2018-07-24 02:57:13,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32019 to 23303. [2018-07-24 02:57:13,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23303 states. [2018-07-24 02:57:13,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23303 states to 23303 states and 30637 transitions. [2018-07-24 02:57:13,279 INFO L78 Accepts]: Start accepts. Automaton has 23303 states and 30637 transitions. Word has length 248 [2018-07-24 02:57:13,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:57:13,280 INFO L471 AbstractCegarLoop]: Abstraction has 23303 states and 30637 transitions. [2018-07-24 02:57:13,280 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:57:13,280 INFO L276 IsEmpty]: Start isEmpty. Operand 23303 states and 30637 transitions. [2018-07-24 02:57:13,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2018-07-24 02:57:13,286 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:57:13,286 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:57:13,286 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:57:13,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1527070375, now seen corresponding path program 1 times [2018-07-24 02:57:13,287 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:57:13,287 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:57:13,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:57:13,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:57:13,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:57:13,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:57:13,762 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 129 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:57:13,763 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:57:13,763 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 02:57:13,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:57:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:57:13,885 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:57:14,034 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 02:57:14,063 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 02:57:14,064 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-07-24 02:57:14,065 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 02:57:14,065 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 02:57:14,065 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 02:57:14,066 INFO L87 Difference]: Start difference. First operand 23303 states and 30637 transitions. Second operand 6 states. [2018-07-24 02:57:44,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:57:44,233 INFO L93 Difference]: Finished difference Result 102829 states and 141469 transitions. [2018-07-24 02:57:44,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-24 02:57:44,234 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 266 [2018-07-24 02:57:44,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:57:44,413 INFO L225 Difference]: With dead ends: 102829 [2018-07-24 02:57:44,413 INFO L226 Difference]: Without dead ends: 80315 [2018-07-24 02:57:44,448 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-07-24 02:57:44,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80315 states. [2018-07-24 02:57:45,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80315 to 76979. [2018-07-24 02:57:45,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76979 states. [2018-07-24 02:57:45,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76979 states to 76979 states and 95410 transitions. [2018-07-24 02:57:45,491 INFO L78 Accepts]: Start accepts. Automaton has 76979 states and 95410 transitions. Word has length 266 [2018-07-24 02:57:45,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:57:45,491 INFO L471 AbstractCegarLoop]: Abstraction has 76979 states and 95410 transitions. [2018-07-24 02:57:45,492 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 02:57:45,492 INFO L276 IsEmpty]: Start isEmpty. Operand 76979 states and 95410 transitions. [2018-07-24 02:57:45,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2018-07-24 02:57:45,500 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:57:45,500 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, 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, 1, 1, 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 02:57:45,500 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:57:45,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1052757919, now seen corresponding path program 1 times [2018-07-24 02:57:45,501 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:57:45,501 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:57:45,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:57:45,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:57:45,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:57:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:57:45,840 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2018-07-24 02:57:45,841 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:57:45,841 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 02:57:45,841 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 02:57:45,842 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 02:57:45,842 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 02:57:45,842 INFO L87 Difference]: Start difference. First operand 76979 states and 95410 transitions. Second operand 3 states. [2018-07-24 02:57:54,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:57:54,069 INFO L93 Difference]: Finished difference Result 206731 states and 256771 transitions. [2018-07-24 02:57:54,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 02:57:54,070 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 297 [2018-07-24 02:57:54,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:57:54,264 INFO L225 Difference]: With dead ends: 206731 [2018-07-24 02:57:54,264 INFO L226 Difference]: Without dead ends: 130542 [2018-07-24 02:57:54,340 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 02:57:54,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130542 states. [2018-07-24 02:57:56,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130542 to 129750. [2018-07-24 02:57:56,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129750 states. [2018-07-24 02:57:56,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129750 states to 129750 states and 151251 transitions. [2018-07-24 02:57:56,382 INFO L78 Accepts]: Start accepts. Automaton has 129750 states and 151251 transitions. Word has length 297 [2018-07-24 02:57:56,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:57:56,383 INFO L471 AbstractCegarLoop]: Abstraction has 129750 states and 151251 transitions. [2018-07-24 02:57:56,383 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 02:57:56,383 INFO L276 IsEmpty]: Start isEmpty. Operand 129750 states and 151251 transitions. [2018-07-24 02:57:56,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2018-07-24 02:57:56,397 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:57:56,398 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, 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, 2, 2, 2, 2, 2, 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] [2018-07-24 02:57:56,398 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:57:56,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1540165597, now seen corresponding path program 1 times [2018-07-24 02:57:56,398 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:57:56,399 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:57:56,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:57:56,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:57:56,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:57:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:57:56,793 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 410 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-07-24 02:57:56,793 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:57:56,793 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 02:57:56,794 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:57:56,794 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:57:56,794 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:57:56,795 INFO L87 Difference]: Start difference. First operand 129750 states and 151251 transitions. Second operand 4 states. [2018-07-24 02:58:08,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:58:08,291 INFO L93 Difference]: Finished difference Result 269741 states and 313996 transitions. [2018-07-24 02:58:08,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:58:08,292 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 394 [2018-07-24 02:58:08,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:58:08,447 INFO L225 Difference]: With dead ends: 269741 [2018-07-24 02:58:08,447 INFO L226 Difference]: Without dead ends: 123390 [2018-07-24 02:58:08,527 INFO L573 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 [2018-07-24 02:58:08,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123390 states. [2018-07-24 02:58:10,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123390 to 113925. [2018-07-24 02:58:10,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113925 states. [2018-07-24 02:58:10,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113925 states to 113925 states and 131084 transitions. [2018-07-24 02:58:10,565 INFO L78 Accepts]: Start accepts. Automaton has 113925 states and 131084 transitions. Word has length 394 [2018-07-24 02:58:10,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:58:10,566 INFO L471 AbstractCegarLoop]: Abstraction has 113925 states and 131084 transitions. [2018-07-24 02:58:10,566 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:58:10,566 INFO L276 IsEmpty]: Start isEmpty. Operand 113925 states and 131084 transitions. [2018-07-24 02:58:10,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2018-07-24 02:58:10,577 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:58:10,578 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, 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, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:58:10,578 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:58:10,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1431309, now seen corresponding path program 1 times [2018-07-24 02:58:10,578 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:58:10,578 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:58:10,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:58:10,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:58:10,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:58:10,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:58:11,003 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 647 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2018-07-24 02:58:11,003 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:58:11,004 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:58:11,004 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:58:11,004 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:58:11,004 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:58:11,005 INFO L87 Difference]: Start difference. First operand 113925 states and 131084 transitions. Second operand 4 states. [2018-07-24 02:58:22,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:58:22,474 INFO L93 Difference]: Finished difference Result 288562 states and 332194 transitions. [2018-07-24 02:58:22,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:58:22,475 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 446 [2018-07-24 02:58:22,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:58:22,707 INFO L225 Difference]: With dead ends: 288562 [2018-07-24 02:58:22,707 INFO L226 Difference]: Without dead ends: 173051 [2018-07-24 02:58:22,786 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 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 02:58:22,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173051 states. [2018-07-24 02:58:24,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173051 to 165124. [2018-07-24 02:58:24,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165124 states. [2018-07-24 02:58:24,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165124 states to 165124 states and 182373 transitions. [2018-07-24 02:58:24,396 INFO L78 Accepts]: Start accepts. Automaton has 165124 states and 182373 transitions. Word has length 446 [2018-07-24 02:58:24,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:58:24,396 INFO L471 AbstractCegarLoop]: Abstraction has 165124 states and 182373 transitions. [2018-07-24 02:58:24,396 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:58:24,396 INFO L276 IsEmpty]: Start isEmpty. Operand 165124 states and 182373 transitions. [2018-07-24 02:58:24,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2018-07-24 02:58:24,404 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:58:24,405 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, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-07-24 02:58:24,405 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:58:24,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1798443144, now seen corresponding path program 1 times [2018-07-24 02:58:24,405 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:58:24,405 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:58:24,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:58:24,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:58:24,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:58:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:58:24,743 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 481 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-07-24 02:58:24,744 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:58:24,744 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:58:24,744 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:58:24,745 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:58:24,745 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:58:24,745 INFO L87 Difference]: Start difference. First operand 165124 states and 182373 transitions. Second operand 4 states. [2018-07-24 02:58:36,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:58:36,865 INFO L93 Difference]: Finished difference Result 361784 states and 402546 transitions. [2018-07-24 02:58:36,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:58:36,866 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 463 [2018-07-24 02:58:36,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:58:37,105 INFO L225 Difference]: With dead ends: 361784 [2018-07-24 02:58:37,105 INFO L226 Difference]: Without dead ends: 197450 [2018-07-24 02:58:37,213 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:58:37,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197450 states. [2018-07-24 02:58:43,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197450 to 187178. [2018-07-24 02:58:43,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187178 states. [2018-07-24 02:58:44,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187178 states to 187178 states and 204696 transitions. [2018-07-24 02:58:44,109 INFO L78 Accepts]: Start accepts. Automaton has 187178 states and 204696 transitions. Word has length 463 [2018-07-24 02:58:44,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:58:44,110 INFO L471 AbstractCegarLoop]: Abstraction has 187178 states and 204696 transitions. [2018-07-24 02:58:44,110 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:58:44,110 INFO L276 IsEmpty]: Start isEmpty. Operand 187178 states and 204696 transitions. [2018-07-24 02:58:44,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2018-07-24 02:58:44,117 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:58:44,118 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, 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, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 02:58:44,118 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:58:44,118 INFO L82 PathProgramCache]: Analyzing trace with hash 2126713027, now seen corresponding path program 1 times [2018-07-24 02:58:44,118 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:58:44,118 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:58:44,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:58:44,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:58:44,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:58:44,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:58:44,486 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 524 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-07-24 02:58:44,487 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:58:44,487 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:58:44,487 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:58:44,488 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:58:44,488 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:58:44,488 INFO L87 Difference]: Start difference. First operand 187178 states and 204696 transitions. Second operand 4 states. [2018-07-24 02:58:53,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:58:53,759 INFO L93 Difference]: Finished difference Result 373538 states and 408913 transitions. [2018-07-24 02:58:53,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:58:53,759 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 476 [2018-07-24 02:58:53,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:58:53,990 INFO L225 Difference]: With dead ends: 373538 [2018-07-24 02:58:53,990 INFO L226 Difference]: Without dead ends: 187150 [2018-07-24 02:58:54,088 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:58:54,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187150 states. [2018-07-24 02:58:56,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187150 to 173742. [2018-07-24 02:58:56,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173742 states. [2018-07-24 02:58:56,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173742 states to 173742 states and 184245 transitions. [2018-07-24 02:58:56,611 INFO L78 Accepts]: Start accepts. Automaton has 173742 states and 184245 transitions. Word has length 476 [2018-07-24 02:58:56,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:58:56,612 INFO L471 AbstractCegarLoop]: Abstraction has 173742 states and 184245 transitions. [2018-07-24 02:58:56,612 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:58:56,612 INFO L276 IsEmpty]: Start isEmpty. Operand 173742 states and 184245 transitions. [2018-07-24 02:58:56,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2018-07-24 02:58:56,626 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:58:56,627 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, 6, 6, 6, 6, 6, 6, 6, 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 02:58:56,627 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:58:56,628 INFO L82 PathProgramCache]: Analyzing trace with hash -358337608, now seen corresponding path program 1 times [2018-07-24 02:58:56,628 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:58:56,628 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:58:56,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:58:56,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:58:56,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:58:56,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:58:57,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2018-07-24 02:58:57,242 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:58:57,242 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 02:58:57,243 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 02:58:57,243 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 02:58:57,244 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 02:58:57,244 INFO L87 Difference]: Start difference. First operand 173742 states and 184245 transitions. Second operand 3 states. [2018-07-24 02:59:03,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:59:03,080 INFO L93 Difference]: Finished difference Result 344315 states and 365116 transitions. [2018-07-24 02:59:03,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 02:59:03,081 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 555 [2018-07-24 02:59:03,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:59:03,281 INFO L225 Difference]: With dead ends: 344315 [2018-07-24 02:59:03,281 INFO L226 Difference]: Without dead ends: 171361 [2018-07-24 02:59:03,338 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 02:59:03,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171361 states. [2018-07-24 02:59:04,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171361 to 171361. [2018-07-24 02:59:04,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171361 states. [2018-07-24 02:59:04,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171361 states to 171361 states and 181640 transitions. [2018-07-24 02:59:04,805 INFO L78 Accepts]: Start accepts. Automaton has 171361 states and 181640 transitions. Word has length 555 [2018-07-24 02:59:04,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:59:04,805 INFO L471 AbstractCegarLoop]: Abstraction has 171361 states and 181640 transitions. [2018-07-24 02:59:04,805 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 02:59:04,806 INFO L276 IsEmpty]: Start isEmpty. Operand 171361 states and 181640 transitions. [2018-07-24 02:59:04,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2018-07-24 02:59:04,816 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:59:04,816 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:59:04,816 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:59:04,817 INFO L82 PathProgramCache]: Analyzing trace with hash -360480820, now seen corresponding path program 1 times [2018-07-24 02:59:04,817 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:59:04,817 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:59:04,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:59:04,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:59:04,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:59:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:59:06,138 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 567 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-07-24 02:59:06,138 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 02:59:06,138 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 02:59:06,139 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 02:59:06,139 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 02:59:06,139 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 02:59:06,139 INFO L87 Difference]: Start difference. First operand 171361 states and 181640 transitions. Second operand 4 states. [2018-07-24 02:59:17,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 02:59:17,409 INFO L93 Difference]: Finished difference Result 394011 states and 417725 transitions. [2018-07-24 02:59:17,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 02:59:17,409 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 568 [2018-07-24 02:59:17,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 02:59:17,673 INFO L225 Difference]: With dead ends: 394011 [2018-07-24 02:59:17,673 INFO L226 Difference]: Without dead ends: 223440 [2018-07-24 02:59:17,777 INFO L573 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 [2018-07-24 02:59:17,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223440 states. [2018-07-24 02:59:20,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223440 to 216287. [2018-07-24 02:59:20,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216287 states. [2018-07-24 02:59:20,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216287 states to 216287 states and 228979 transitions. [2018-07-24 02:59:20,432 INFO L78 Accepts]: Start accepts. Automaton has 216287 states and 228979 transitions. Word has length 568 [2018-07-24 02:59:20,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 02:59:20,433 INFO L471 AbstractCegarLoop]: Abstraction has 216287 states and 228979 transitions. [2018-07-24 02:59:20,433 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 02:59:20,433 INFO L276 IsEmpty]: Start isEmpty. Operand 216287 states and 228979 transitions. [2018-07-24 02:59:20,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2018-07-24 02:59:20,445 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 02:59:20,445 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, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:59:20,445 INFO L414 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 02:59:20,445 INFO L82 PathProgramCache]: Analyzing trace with hash -662053142, now seen corresponding path program 1 times [2018-07-24 02:59:20,446 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 02:59:20,446 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 02:59:20,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:59:20,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:59:20,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 02:59:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:59:22,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 382 proven. 463 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2018-07-24 02:59:22,017 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 02:59:22,017 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 02:59:22,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 02:59:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 02:59:22,243 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 02:59:23,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 682 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2018-07-24 02:59:23,254 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 02:59:23,254 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-07-24 02:59:23,258 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 02:59:23,259 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 02:59:23,259 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-07-24 02:59:23,259 INFO L87 Difference]: Start difference. First operand 216287 states and 228979 transitions. Second operand 8 states. Received shutdown request... [2018-07-24 02:59:36,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-24 02:59:36,916 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 02:59:36,922 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 02:59:36,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 02:59:36 BoogieIcfgContainer [2018-07-24 02:59:36,923 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 02:59:36,924 INFO L168 Benchmark]: Toolchain (without parser) took 228510.18 ms. Allocated memory was 1.5 GB in the beginning and 4.5 GB in the end (delta: 3.0 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -268.5 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-07-24 02:59:36,925 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 02:59:36,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2913.95 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: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. [2018-07-24 02:59:36,926 INFO L168 Benchmark]: Boogie Procedure Inliner took 939.50 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 301.5 MB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -573.5 MB). Peak memory consumption was 202.1 MB. Max. memory is 7.1 GB. [2018-07-24 02:59:36,927 INFO L168 Benchmark]: Boogie Preprocessor took 1796.40 ms. Allocated memory was 1.8 GB in the beginning and 2.4 GB in the end (delta: 622.9 MB). Free memory was 1.6 GB in the beginning and 2.2 GB in the end (delta: -585.7 MB). Peak memory consumption was 125.2 MB. Max. memory is 7.1 GB. [2018-07-24 02:59:36,928 INFO L168 Benchmark]: RCFGBuilder took 12520.52 ms. Allocated memory was 2.4 GB in the beginning and 3.0 GB in the end (delta: 511.2 MB). Free memory was 2.2 GB in the beginning and 2.7 GB in the end (delta: -500.8 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-07-24 02:59:36,929 INFO L168 Benchmark]: TraceAbstraction took 210330.91 ms. Allocated memory was 3.0 GB in the beginning and 4.5 GB in the end (delta: 1.5 GB). Free memory was 2.7 GB in the beginning and 1.7 GB in the end (delta: 1.0 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-07-24 02:59:36,934 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2913.95 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: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 939.50 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 301.5 MB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -573.5 MB). Peak memory consumption was 202.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1796.40 ms. Allocated memory was 1.8 GB in the beginning and 2.4 GB in the end (delta: 622.9 MB). Free memory was 1.6 GB in the beginning and 2.2 GB in the end (delta: -585.7 MB). Peak memory consumption was 125.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12520.52 ms. Allocated memory was 2.4 GB in the beginning and 3.0 GB in the end (delta: 511.2 MB). Free memory was 2.2 GB in the beginning and 2.7 GB in the end (delta: -500.8 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 210330.91 ms. Allocated memory was 3.0 GB in the beginning and 4.5 GB in the end (delta: 1.5 GB). Free memory was 2.7 GB in the beginning and 1.7 GB in the end (delta: 1.0 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 204]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 204). Cancelled while BasicCegarLoop was constructing difference of abstraction (216287states) and interpolant automaton (currently 15 states, 8 states before enhancement), while ReachableStatesComputation was computing reachable states (75498 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 210.2s OverallTime, 13 OverallIterations, 6 TraceHistogramMax, 177.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8720 SDtfs, 38195 SDslu, 3299 SDs, 0 SdLazy, 69770 SolverSat, 18821 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 142.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1414 GetRequests, 1362 SyntacticMatches, 7 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216287occurred in iteration=12, 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: 21.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 70773 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 6151 NumberOfCodeBlocks, 6151 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 6134 ConstructedInterpolants, 90 QuantifiedInterpolants, 6893245 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1827 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 7895/8458 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_label52_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_02-59-36-951.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label52_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_02-59-36-951.csv Completed graceful shutdown