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/Problem17_label34_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 01:00:03,347 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 01:00:03,349 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 01:00:03,361 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 01:00:03,361 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 01:00:03,363 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 01:00:03,364 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 01:00:03,365 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 01:00:03,367 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 01:00:03,368 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 01:00:03,369 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 01:00:03,369 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 01:00:03,370 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 01:00:03,371 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 01:00:03,372 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 01:00:03,373 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 01:00:03,374 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 01:00:03,376 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 01:00:03,378 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 01:00:03,379 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 01:00:03,380 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 01:00:03,382 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 01:00:03,384 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 01:00:03,384 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 01:00:03,385 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 01:00:03,386 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 01:00:03,387 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 01:00:03,387 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 01:00:03,388 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 01:00:03,391 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 01:00:03,392 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 01:00:03,393 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-24 01:00:03,396 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 01:00:03,427 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 01:00:03,427 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 01:00:03,428 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 01:00:03,428 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 01:00:03,429 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 01:00:03,429 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 01:00:03,430 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 01:00:03,430 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 01:00:03,430 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 01:00:03,430 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 01:00:03,430 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 01:00:03,431 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 01:00:03,431 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 01:00:03,431 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 01:00:03,431 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 01:00:03,431 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 01:00:03,432 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 01:00:03,432 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 01:00:03,432 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 01:00:03,432 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 01:00:03,432 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 01:00:03,433 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 01:00:03,433 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 01:00:03,433 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 01:00:03,433 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 01:00:03,433 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 01:00:03,434 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 01:00:03,434 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 01:00:03,483 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 01:00:03,497 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 01:00:03,500 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 01:00:03,501 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 01:00:03,502 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 01:00:03,502 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label34_false-unreach-call.c [2018-07-24 01:00:03,859 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8da132169/59efa7b6bc994c0ba66acf75e01e7690/FLAG38fe08dc2 [2018-07-24 01:00:04,265 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 01:00:04,266 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label34_false-unreach-call.c [2018-07-24 01:00:04,295 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8da132169/59efa7b6bc994c0ba66acf75e01e7690/FLAG38fe08dc2 [2018-07-24 01:00:04,312 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8da132169/59efa7b6bc994c0ba66acf75e01e7690 [2018-07-24 01:00:04,323 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 01:00:04,325 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 01:00:04,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 01:00:04,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 01:00:04,335 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 01:00:04,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 01:00:04" (1/1) ... [2018-07-24 01:00:04,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f918427 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:04, skipping insertion in model container [2018-07-24 01:00:04,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 01:00:04" (1/1) ... [2018-07-24 01:00:04,615 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 01:00:05,365 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 01:00:05,385 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 01:00:05,863 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 01:00:06,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:06 WrapperNode [2018-07-24 01:00:06,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 01:00:06,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 01:00:06,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 01:00:06,071 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 01:00:06,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:06" (1/1) ... [2018-07-24 01:00:06,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:06" (1/1) ... [2018-07-24 01:00:06,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 01:00:06,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 01:00:06,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 01:00:06,406 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 01:00:07,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:06" (1/1) ... [2018-07-24 01:00:07,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:06" (1/1) ... [2018-07-24 01:00:07,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:06" (1/1) ... [2018-07-24 01:00:07,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:06" (1/1) ... [2018-07-24 01:00:07,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:06" (1/1) ... [2018-07-24 01:00:07,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:06" (1/1) ... [2018-07-24 01:00:07,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:06" (1/1) ... [2018-07-24 01:00:07,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 01:00:07,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 01:00:07,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 01:00:07,446 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 01:00:07,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:06" (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 01:00:07,517 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 01:00:07,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 01:00:07,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 01:00:17,097 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 01:00:17,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 01:00:17 BoogieIcfgContainer [2018-07-24 01:00:17,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 01:00:17,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 01:00:17,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 01:00:17,104 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 01:00:17,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 01:00:04" (1/3) ... [2018-07-24 01:00:17,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19176d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 01:00:17, skipping insertion in model container [2018-07-24 01:00:17,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:06" (2/3) ... [2018-07-24 01:00:17,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19176d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 01:00:17, skipping insertion in model container [2018-07-24 01:00:17,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 01:00:17" (3/3) ... [2018-07-24 01:00:17,108 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label34_false-unreach-call.c [2018-07-24 01:00:17,118 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 01:00:17,128 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 01:00:17,188 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 01:00:17,189 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 01:00:17,189 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 01:00:17,189 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 01:00:17,189 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 01:00:17,190 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 01:00:17,190 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 01:00:17,190 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 01:00:17,190 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 01:00:17,227 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states. [2018-07-24 01:00:17,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-07-24 01:00:17,239 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:00:17,241 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] [2018-07-24 01:00:17,241 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:00:17,247 INFO L82 PathProgramCache]: Analyzing trace with hash 183950178, now seen corresponding path program 1 times [2018-07-24 01:00:17,249 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:00:17,250 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:00:17,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:00:17,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:00:17,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:00:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:00:17,590 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 01:00:17,592 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:00:17,593 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:00:17,597 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:00:17,608 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:00:17,609 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:00:17,611 INFO L87 Difference]: Start difference. First operand 591 states. Second operand 4 states. [2018-07-24 01:00:28,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:00:28,294 INFO L93 Difference]: Finished difference Result 2122 states and 3950 transitions. [2018-07-24 01:00:28,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:00:28,296 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-07-24 01:00:28,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:00:28,325 INFO L225 Difference]: With dead ends: 2122 [2018-07-24 01:00:28,326 INFO L226 Difference]: Without dead ends: 1524 [2018-07-24 01:00:28,333 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 01:00:28,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2018-07-24 01:00:28,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1497. [2018-07-24 01:00:28,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1497 states. [2018-07-24 01:00:28,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 2656 transitions. [2018-07-24 01:00:28,482 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 2656 transitions. Word has length 20 [2018-07-24 01:00:28,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:00:28,482 INFO L471 AbstractCegarLoop]: Abstraction has 1497 states and 2656 transitions. [2018-07-24 01:00:28,482 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:00:28,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 2656 transitions. [2018-07-24 01:00:28,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-07-24 01:00:28,487 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:00:28,488 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 01:00:28,488 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:00:28,490 INFO L82 PathProgramCache]: Analyzing trace with hash -727426299, now seen corresponding path program 1 times [2018-07-24 01:00:28,490 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:00:28,490 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:00:28,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:00:28,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:00:28,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:00:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:00:28,824 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:00:28,824 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:00:28,824 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:00:28,826 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:00:28,826 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:00:28,827 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:00:28,827 INFO L87 Difference]: Start difference. First operand 1497 states and 2656 transitions. Second operand 4 states. [2018-07-24 01:00:40,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:00:40,350 INFO L93 Difference]: Finished difference Result 5559 states and 10085 transitions. [2018-07-24 01:00:40,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:00:40,351 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 95 [2018-07-24 01:00:40,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:00:40,373 INFO L225 Difference]: With dead ends: 5559 [2018-07-24 01:00:40,374 INFO L226 Difference]: Without dead ends: 4064 [2018-07-24 01:00:40,379 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 01:00:40,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4064 states. [2018-07-24 01:00:40,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4064 to 4064. [2018-07-24 01:00:40,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4064 states. [2018-07-24 01:00:40,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4064 states to 4064 states and 5972 transitions. [2018-07-24 01:00:40,479 INFO L78 Accepts]: Start accepts. Automaton has 4064 states and 5972 transitions. Word has length 95 [2018-07-24 01:00:40,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:00:40,480 INFO L471 AbstractCegarLoop]: Abstraction has 4064 states and 5972 transitions. [2018-07-24 01:00:40,480 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:00:40,480 INFO L276 IsEmpty]: Start isEmpty. Operand 4064 states and 5972 transitions. [2018-07-24 01:00:40,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-07-24 01:00:40,493 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:00:40,495 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:00:40,495 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:00:40,496 INFO L82 PathProgramCache]: Analyzing trace with hash 2005692917, now seen corresponding path program 1 times [2018-07-24 01:00:40,496 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:00:40,496 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:00:40,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:00:40,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:00:40,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:00:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:00:40,915 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 91 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:00:40,915 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:00:40,916 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 01:00:40,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:00:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:00:41,018 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:00:41,190 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-07-24 01:00:41,227 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 01:00:41,227 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2018-07-24 01:00:41,228 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 01:00:41,228 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 01:00:41,228 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-24 01:00:41,229 INFO L87 Difference]: Start difference. First operand 4064 states and 5972 transitions. Second operand 7 states. [2018-07-24 01:00:52,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:00:52,593 INFO L93 Difference]: Finished difference Result 8145 states and 11961 transitions. [2018-07-24 01:00:52,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 01:00:52,594 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 179 [2018-07-24 01:00:52,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:00:52,614 INFO L225 Difference]: With dead ends: 8145 [2018-07-24 01:00:52,614 INFO L226 Difference]: Without dead ends: 4083 [2018-07-24 01:00:52,620 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-07-24 01:00:52,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4083 states. [2018-07-24 01:00:52,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4083 to 4059. [2018-07-24 01:00:52,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4059 states. [2018-07-24 01:00:52,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4059 states to 4059 states and 5230 transitions. [2018-07-24 01:00:52,688 INFO L78 Accepts]: Start accepts. Automaton has 4059 states and 5230 transitions. Word has length 179 [2018-07-24 01:00:52,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:00:52,689 INFO L471 AbstractCegarLoop]: Abstraction has 4059 states and 5230 transitions. [2018-07-24 01:00:52,689 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 01:00:52,689 INFO L276 IsEmpty]: Start isEmpty. Operand 4059 states and 5230 transitions. [2018-07-24 01:00:52,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-07-24 01:00:52,694 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:00:52,694 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:00:52,695 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:00:52,695 INFO L82 PathProgramCache]: Analyzing trace with hash 763600966, now seen corresponding path program 1 times [2018-07-24 01:00:52,695 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:00:52,695 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:00:52,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:00:52,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:00:52,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:00:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:00:53,139 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 35 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:00:53,140 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:00:53,140 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 01:00:53,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:00:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:00:53,246 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:00:53,504 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 35 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:00:53,527 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 01:00:53,527 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-07-24 01:00:53,528 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 01:00:53,528 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 01:00:53,529 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-07-24 01:00:53,529 INFO L87 Difference]: Start difference. First operand 4059 states and 5230 transitions. Second operand 7 states. [2018-07-24 01:01:13,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:01:13,241 INFO L93 Difference]: Finished difference Result 17589 states and 22382 transitions. [2018-07-24 01:01:13,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 01:01:13,243 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 242 [2018-07-24 01:01:13,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:01:13,280 INFO L225 Difference]: With dead ends: 17589 [2018-07-24 01:01:13,281 INFO L226 Difference]: Without dead ends: 10486 [2018-07-24 01:01:13,291 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-07-24 01:01:13,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10486 states. [2018-07-24 01:01:13,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10486 to 8315. [2018-07-24 01:01:13,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8315 states. [2018-07-24 01:01:13,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8315 states to 8315 states and 9556 transitions. [2018-07-24 01:01:13,558 INFO L78 Accepts]: Start accepts. Automaton has 8315 states and 9556 transitions. Word has length 242 [2018-07-24 01:01:13,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:01:13,559 INFO L471 AbstractCegarLoop]: Abstraction has 8315 states and 9556 transitions. [2018-07-24 01:01:13,559 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 01:01:13,559 INFO L276 IsEmpty]: Start isEmpty. Operand 8315 states and 9556 transitions. [2018-07-24 01:01:13,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2018-07-24 01:01:13,567 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:01:13,567 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 01:01:13,568 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:01:13,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1348567370, now seen corresponding path program 1 times [2018-07-24 01:01:13,568 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:01:13,568 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:01:13,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:01:13,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:01:13,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:01:13,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:01:13,958 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-07-24 01:01:14,015 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2018-07-24 01:01:14,015 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:01:14,016 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 01:01:14,016 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:01:14,016 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:01:14,016 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:01:14,017 INFO L87 Difference]: Start difference. First operand 8315 states and 9556 transitions. Second operand 4 states. [2018-07-24 01:01:19,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:01:19,934 INFO L93 Difference]: Finished difference Result 25612 states and 30018 transitions. [2018-07-24 01:01:19,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:01:19,935 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 335 [2018-07-24 01:01:19,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:01:19,979 INFO L225 Difference]: With dead ends: 25612 [2018-07-24 01:01:19,979 INFO L226 Difference]: Without dead ends: 15111 [2018-07-24 01:01:19,991 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 01:01:20,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15111 states. [2018-07-24 01:01:20,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15111 to 11687. [2018-07-24 01:01:20,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11687 states. [2018-07-24 01:01:20,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11687 states to 11687 states and 13162 transitions. [2018-07-24 01:01:20,207 INFO L78 Accepts]: Start accepts. Automaton has 11687 states and 13162 transitions. Word has length 335 [2018-07-24 01:01:20,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:01:20,208 INFO L471 AbstractCegarLoop]: Abstraction has 11687 states and 13162 transitions. [2018-07-24 01:01:20,208 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:01:20,208 INFO L276 IsEmpty]: Start isEmpty. Operand 11687 states and 13162 transitions. [2018-07-24 01:01:20,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2018-07-24 01:01:20,219 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:01:20,219 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 01:01:20,219 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:01:20,220 INFO L82 PathProgramCache]: Analyzing trace with hash -537873477, now seen corresponding path program 1 times [2018-07-24 01:01:20,220 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:01:20,220 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:01:20,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:01:20,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:01:20,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:01:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:01:20,668 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2018-07-24 01:01:20,668 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:01:20,669 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 01:01:20,669 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:01:20,670 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:01:20,670 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:01:20,670 INFO L87 Difference]: Start difference. First operand 11687 states and 13162 transitions. Second operand 4 states. [2018-07-24 01:01:27,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:01:27,587 INFO L93 Difference]: Finished difference Result 38305 states and 43161 transitions. [2018-07-24 01:01:27,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:01:27,588 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 364 [2018-07-24 01:01:27,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:01:27,634 INFO L225 Difference]: With dead ends: 38305 [2018-07-24 01:01:27,635 INFO L226 Difference]: Without dead ends: 26620 [2018-07-24 01:01:27,650 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 01:01:27,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26620 states. [2018-07-24 01:01:27,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26620 to 26611. [2018-07-24 01:01:27,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26611 states. [2018-07-24 01:01:27,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26611 states to 26611 states and 29350 transitions. [2018-07-24 01:01:27,985 INFO L78 Accepts]: Start accepts. Automaton has 26611 states and 29350 transitions. Word has length 364 [2018-07-24 01:01:27,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:01:27,986 INFO L471 AbstractCegarLoop]: Abstraction has 26611 states and 29350 transitions. [2018-07-24 01:01:27,986 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:01:27,986 INFO L276 IsEmpty]: Start isEmpty. Operand 26611 states and 29350 transitions. [2018-07-24 01:01:27,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2018-07-24 01:01:27,996 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:01:27,997 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 01:01:27,997 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:01:27,997 INFO L82 PathProgramCache]: Analyzing trace with hash 984387653, now seen corresponding path program 1 times [2018-07-24 01:01:27,997 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:01:27,998 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:01:27,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:01:27,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:01:27,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:01:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:01:28,439 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2018-07-24 01:01:28,440 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:01:28,440 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 01:01:28,440 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:01:28,441 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:01:28,441 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:01:28,444 INFO L87 Difference]: Start difference. First operand 26611 states and 29350 transitions. Second operand 4 states. [2018-07-24 01:01:34,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:01:34,888 INFO L93 Difference]: Finished difference Result 65164 states and 72410 transitions. [2018-07-24 01:01:34,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:01:34,889 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 383 [2018-07-24 01:01:34,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:01:34,948 INFO L225 Difference]: With dead ends: 65164 [2018-07-24 01:01:34,948 INFO L226 Difference]: Without dead ends: 38983 [2018-07-24 01:01:34,972 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 01:01:34,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38983 states. [2018-07-24 01:01:35,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38983 to 33421. [2018-07-24 01:01:35,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33421 states. [2018-07-24 01:01:35,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33421 states to 33421 states and 36434 transitions. [2018-07-24 01:01:35,345 INFO L78 Accepts]: Start accepts. Automaton has 33421 states and 36434 transitions. Word has length 383 [2018-07-24 01:01:35,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:01:35,346 INFO L471 AbstractCegarLoop]: Abstraction has 33421 states and 36434 transitions. [2018-07-24 01:01:35,346 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:01:35,346 INFO L276 IsEmpty]: Start isEmpty. Operand 33421 states and 36434 transitions. [2018-07-24 01:01:35,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2018-07-24 01:01:35,366 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:01:35,366 INFO L353 BasicCegarLoop]: trace histogram [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, 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, 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] [2018-07-24 01:01:35,367 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:01:35,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1196298390, now seen corresponding path program 1 times [2018-07-24 01:01:35,367 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:01:35,367 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:01:35,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:01:35,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:01:35,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:01:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:01:35,706 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2018-07-24 01:01:35,707 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:01:35,707 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:01:35,707 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:01:35,708 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:01:35,708 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:01:35,708 INFO L87 Difference]: Start difference. First operand 33421 states and 36434 transitions. Second operand 3 states. [2018-07-24 01:01:39,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:01:39,446 INFO L93 Difference]: Finished difference Result 73652 states and 80654 transitions. [2018-07-24 01:01:39,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:01:39,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 435 [2018-07-24 01:01:39,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:01:39,496 INFO L225 Difference]: With dead ends: 73652 [2018-07-24 01:01:39,496 INFO L226 Difference]: Without dead ends: 37223 [2018-07-24 01:01:39,520 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:01:39,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37223 states. [2018-07-24 01:01:40,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37223 to 34666. [2018-07-24 01:01:40,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34666 states. [2018-07-24 01:01:40,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34666 states to 34666 states and 38046 transitions. [2018-07-24 01:01:40,316 INFO L78 Accepts]: Start accepts. Automaton has 34666 states and 38046 transitions. Word has length 435 [2018-07-24 01:01:40,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:01:40,317 INFO L471 AbstractCegarLoop]: Abstraction has 34666 states and 38046 transitions. [2018-07-24 01:01:40,317 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:01:40,317 INFO L276 IsEmpty]: Start isEmpty. Operand 34666 states and 38046 transitions. [2018-07-24 01:01:40,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2018-07-24 01:01:40,332 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:01:40,332 INFO L353 BasicCegarLoop]: trace histogram [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, 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, 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] [2018-07-24 01:01:40,333 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:01:40,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1005073612, now seen corresponding path program 1 times [2018-07-24 01:01:40,334 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:01:40,334 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:01:40,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:01:40,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:01:40,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:01:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:01:40,930 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2018-07-24 01:01:40,931 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:01:40,931 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 01:01:40,932 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:01:40,932 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:01:40,932 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:01:40,932 INFO L87 Difference]: Start difference. First operand 34666 states and 38046 transitions. Second operand 4 states. [2018-07-24 01:01:49,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:01:49,878 INFO L93 Difference]: Finished difference Result 89793 states and 98825 transitions. [2018-07-24 01:01:49,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:01:49,879 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 454 [2018-07-24 01:01:49,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:01:49,932 INFO L225 Difference]: With dead ends: 89793 [2018-07-24 01:01:49,933 INFO L226 Difference]: Without dead ends: 51694 [2018-07-24 01:01:49,963 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 01:01:50,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51694 states. [2018-07-24 01:01:50,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51694 to 46994. [2018-07-24 01:01:50,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46994 states. [2018-07-24 01:01:50,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46994 states to 46994 states and 50899 transitions. [2018-07-24 01:01:50,529 INFO L78 Accepts]: Start accepts. Automaton has 46994 states and 50899 transitions. Word has length 454 [2018-07-24 01:01:50,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:01:50,530 INFO L471 AbstractCegarLoop]: Abstraction has 46994 states and 50899 transitions. [2018-07-24 01:01:50,530 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:01:50,530 INFO L276 IsEmpty]: Start isEmpty. Operand 46994 states and 50899 transitions. [2018-07-24 01:01:50,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2018-07-24 01:01:50,544 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:01:50,545 INFO L353 BasicCegarLoop]: trace histogram [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, 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, 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] [2018-07-24 01:01:50,545 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:01:50,545 INFO L82 PathProgramCache]: Analyzing trace with hash 845836321, now seen corresponding path program 1 times [2018-07-24 01:01:50,545 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:01:50,545 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:01:50,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:01:50,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:01:50,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:01:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:01:51,328 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 333 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2018-07-24 01:01:51,328 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:01:51,328 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 01:01:51,329 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:01:51,329 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:01:51,329 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:01:51,330 INFO L87 Difference]: Start difference. First operand 46994 states and 50899 transitions. Second operand 4 states. [2018-07-24 01:01:55,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:01:55,355 INFO L93 Difference]: Finished difference Result 102514 states and 111059 transitions. [2018-07-24 01:01:55,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:01:55,355 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 465 [2018-07-24 01:01:55,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:01:55,410 INFO L225 Difference]: With dead ends: 102514 [2018-07-24 01:01:55,410 INFO L226 Difference]: Without dead ends: 55947 [2018-07-24 01:01:55,440 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:01:55,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55947 states. [2018-07-24 01:01:56,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55947 to 47409. [2018-07-24 01:01:56,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47409 states. [2018-07-24 01:01:56,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47409 states to 47409 states and 50827 transitions. [2018-07-24 01:01:56,093 INFO L78 Accepts]: Start accepts. Automaton has 47409 states and 50827 transitions. Word has length 465 [2018-07-24 01:01:56,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:01:56,094 INFO L471 AbstractCegarLoop]: Abstraction has 47409 states and 50827 transitions. [2018-07-24 01:01:56,094 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:01:56,094 INFO L276 IsEmpty]: Start isEmpty. Operand 47409 states and 50827 transitions. [2018-07-24 01:01:56,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2018-07-24 01:01:56,109 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:01:56,110 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 01:01:56,110 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:01:56,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1625146148, now seen corresponding path program 1 times [2018-07-24 01:01:56,112 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:01:56,112 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:01:56,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:01:56,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:01:56,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:01:56,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:01:56,823 WARN L169 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2018-07-24 01:01:57,681 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 55 proven. 267 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-07-24 01:01:57,682 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:01:57,682 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 01:01:57,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:01:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:01:57,870 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:01:58,162 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 224 proven. 83 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-07-24 01:01:58,183 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 01:01:58,184 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3] total 10 [2018-07-24 01:01:58,185 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-24 01:01:58,185 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-24 01:01:58,185 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-07-24 01:01:58,186 INFO L87 Difference]: Start difference. First operand 47409 states and 50827 transitions. Second operand 11 states. [2018-07-24 01:02:10,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:02:10,236 INFO L93 Difference]: Finished difference Result 97793 states and 104745 transitions. [2018-07-24 01:02:10,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-24 01:02:10,237 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 479 [2018-07-24 01:02:10,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:02:10,285 INFO L225 Difference]: With dead ends: 97793 [2018-07-24 01:02:10,286 INFO L226 Difference]: Without dead ends: 50812 [2018-07-24 01:02:10,311 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 478 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2018-07-24 01:02:10,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50812 states. [2018-07-24 01:02:10,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50812 to 49965. [2018-07-24 01:02:10,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49965 states. [2018-07-24 01:02:10,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49965 states to 49965 states and 53455 transitions. [2018-07-24 01:02:10,884 INFO L78 Accepts]: Start accepts. Automaton has 49965 states and 53455 transitions. Word has length 479 [2018-07-24 01:02:10,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:02:10,884 INFO L471 AbstractCegarLoop]: Abstraction has 49965 states and 53455 transitions. [2018-07-24 01:02:10,884 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-24 01:02:10,884 INFO L276 IsEmpty]: Start isEmpty. Operand 49965 states and 53455 transitions. [2018-07-24 01:02:10,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2018-07-24 01:02:10,898 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:02:10,898 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 01:02:10,899 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:02:10,899 INFO L82 PathProgramCache]: Analyzing trace with hash 389447701, now seen corresponding path program 1 times [2018-07-24 01:02:10,899 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:02:10,899 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:02:10,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:02:10,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:02:10,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:02:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:02:11,367 WARN L169 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-07-24 01:02:11,754 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 267 proven. 83 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-07-24 01:02:11,755 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:02:11,755 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 01:02:11,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:02:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:02:11,942 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:02:13,403 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 267 proven. 83 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-07-24 01:02:13,424 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 01:02:13,425 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 7 [2018-07-24 01:02:13,426 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 01:02:13,426 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 01:02:13,426 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 01:02:13,426 INFO L87 Difference]: Start difference. First operand 49965 states and 53455 transitions. Second operand 8 states. [2018-07-24 01:02:21,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:02:21,702 INFO L93 Difference]: Finished difference Result 101638 states and 108731 transitions. [2018-07-24 01:02:21,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 01:02:21,702 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 522 [2018-07-24 01:02:21,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:02:21,761 INFO L225 Difference]: With dead ends: 101638 [2018-07-24 01:02:21,762 INFO L226 Difference]: Without dead ends: 52101 [2018-07-24 01:02:21,792 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 01:02:21,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52101 states. [2018-07-24 01:02:22,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52101 to 51671. [2018-07-24 01:02:22,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51671 states. [2018-07-24 01:02:22,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51671 states to 51671 states and 55203 transitions. [2018-07-24 01:02:22,298 INFO L78 Accepts]: Start accepts. Automaton has 51671 states and 55203 transitions. Word has length 522 [2018-07-24 01:02:22,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:02:22,298 INFO L471 AbstractCegarLoop]: Abstraction has 51671 states and 55203 transitions. [2018-07-24 01:02:22,298 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-24 01:02:22,298 INFO L276 IsEmpty]: Start isEmpty. Operand 51671 states and 55203 transitions. [2018-07-24 01:02:22,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2018-07-24 01:02:22,316 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:02:22,317 INFO L353 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 01:02:22,317 INFO L414 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:02:22,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1946805059, now seen corresponding path program 1 times [2018-07-24 01:02:22,318 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:02:22,318 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:02:22,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:02:22,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:02:22,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:02:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:02:23,525 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 368 proven. 248 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-07-24 01:02:23,526 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:02:23,526 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 01:02:23,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:02:23,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:02:23,751 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:02:24,052 WARN L169 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 16 [2018-07-24 01:02:24,528 WARN L169 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2018-07-24 01:02:26,643 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 368 proven. 248 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-07-24 01:02:26,665 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 01:02:26,666 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 8 [2018-07-24 01:02:26,667 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 01:02:26,667 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 01:02:26,667 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-07-24 01:02:26,667 INFO L87 Difference]: Start difference. First operand 51671 states and 55203 transitions. Second operand 9 states. [2018-07-24 01:02:36,120 WARN L169 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 25 [2018-07-24 01:03:05,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:03:05,646 INFO L93 Difference]: Finished difference Result 130692 states and 139880 transitions. [2018-07-24 01:03:05,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-24 01:03:05,647 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 605 [2018-07-24 01:03:05,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:03:05,729 INFO L225 Difference]: With dead ends: 130692 [2018-07-24 01:03:05,730 INFO L226 Difference]: Without dead ends: 79023 [2018-07-24 01:03:05,763 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 602 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-07-24 01:03:05,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79023 states. [2018-07-24 01:03:06,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79023 to 61046. [2018-07-24 01:03:06,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61046 states. [2018-07-24 01:03:06,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61046 states to 61046 states and 64577 transitions. [2018-07-24 01:03:06,777 INFO L78 Accepts]: Start accepts. Automaton has 61046 states and 64577 transitions. Word has length 605 [2018-07-24 01:03:06,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:03:06,777 INFO L471 AbstractCegarLoop]: Abstraction has 61046 states and 64577 transitions. [2018-07-24 01:03:06,777 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 01:03:06,777 INFO L276 IsEmpty]: Start isEmpty. Operand 61046 states and 64577 transitions. [2018-07-24 01:03:06,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2018-07-24 01:03:06,789 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:03:06,790 INFO L353 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 01:03:06,790 INFO L414 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:03:06,790 INFO L82 PathProgramCache]: Analyzing trace with hash 441790744, now seen corresponding path program 1 times [2018-07-24 01:03:06,790 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:03:06,790 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:03:06,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:03:06,791 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:03:06,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:03:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:03:07,451 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-07-24 01:03:07,692 WARN L169 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-07-24 01:03:09,935 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 589 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:03:09,936 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:03:09,936 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 01:03:09,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:03:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:03:10,177 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:03:11,175 WARN L169 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 22 [2018-07-24 01:03:11,962 WARN L169 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2018-07-24 01:03:13,472 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 485 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:03:13,493 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 01:03:13,493 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8] total 17 [2018-07-24 01:03:13,495 INFO L450 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-07-24 01:03:13,495 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-07-24 01:03:13,495 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2018-07-24 01:03:13,495 INFO L87 Difference]: Start difference. First operand 61046 states and 64577 transitions. Second operand 17 states. [2018-07-24 01:03:36,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:03:36,929 INFO L93 Difference]: Finished difference Result 134131 states and 142139 transitions. [2018-07-24 01:03:36,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-07-24 01:03:36,930 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 627 [2018-07-24 01:03:36,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:03:37,004 INFO L225 Difference]: With dead ends: 134131 [2018-07-24 01:03:37,004 INFO L226 Difference]: Without dead ends: 74365 [2018-07-24 01:03:37,026 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 649 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=578, Invalid=1228, Unknown=0, NotChecked=0, Total=1806 [2018-07-24 01:03:37,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74365 states. [2018-07-24 01:03:37,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74365 to 66991. [2018-07-24 01:03:37,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66991 states. [2018-07-24 01:03:37,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66991 states to 66991 states and 70506 transitions. [2018-07-24 01:03:37,656 INFO L78 Accepts]: Start accepts. Automaton has 66991 states and 70506 transitions. Word has length 627 [2018-07-24 01:03:37,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:03:37,657 INFO L471 AbstractCegarLoop]: Abstraction has 66991 states and 70506 transitions. [2018-07-24 01:03:37,657 INFO L472 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-07-24 01:03:37,657 INFO L276 IsEmpty]: Start isEmpty. Operand 66991 states and 70506 transitions. [2018-07-24 01:03:37,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2018-07-24 01:03:37,674 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:03:37,674 INFO L353 BasicCegarLoop]: trace histogram [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, 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, 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, 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] [2018-07-24 01:03:37,674 INFO L414 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:03:37,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1824734978, now seen corresponding path program 1 times [2018-07-24 01:03:37,675 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:03:37,675 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:03:37,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:03:37,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:03:37,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:03:37,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:03:38,686 WARN L169 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 11 [2018-07-24 01:03:38,857 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 10 [2018-07-24 01:03:39,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 823 proven. 518 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-07-24 01:03:39,438 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:03:39,438 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 01:03:39,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:03:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:03:39,699 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:03:41,503 WARN L169 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2018-07-24 01:03:46,000 WARN L169 SmtUtils]: Spent 4.29 s on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-07-24 01:03:54,928 WARN L169 SmtUtils]: Spent 8.07 s on a formula simplification. DAG size of input: 190 DAG size of output: 32 [2018-07-24 01:03:56,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 1157 proven. 69 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2018-07-24 01:03:56,351 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 01:03:56,351 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9] total 14 [2018-07-24 01:03:56,352 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-24 01:03:56,353 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-24 01:03:56,353 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=141, Unknown=1, NotChecked=0, Total=182 [2018-07-24 01:03:56,353 INFO L87 Difference]: Start difference. First operand 66991 states and 70506 transitions. Second operand 14 states. Received shutdown request... [2018-07-24 01:04:02,213 WARN L177 SmtUtils]: Removed 1 from assertion stack [2018-07-24 01:04:02,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 01:04:02,214 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 01:04:02,220 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 01:04:02,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 01:04:02 BoogieIcfgContainer [2018-07-24 01:04:02,220 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 01:04:02,221 INFO L168 Benchmark]: Toolchain (without parser) took 237897.33 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -123.8 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-07-24 01:04:02,222 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 01:04:02,223 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1743.83 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. [2018-07-24 01:04:02,224 INFO L168 Benchmark]: Boogie Procedure Inliner took 334.52 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-07-24 01:04:02,225 INFO L168 Benchmark]: Boogie Preprocessor took 1039.76 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 969.9 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 145.3 MB. Max. memory is 7.1 GB. [2018-07-24 01:04:02,225 INFO L168 Benchmark]: RCFGBuilder took 9653.61 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 504.2 MB). Peak memory consumption was 504.2 MB. Max. memory is 7.1 GB. [2018-07-24 01:04:02,226 INFO L168 Benchmark]: TraceAbstraction took 225120.64 ms. Allocated memory was 2.5 GB in the beginning and 3.9 GB in the end (delta: 1.4 GB). Free memory was 1.9 GB in the beginning and 1.5 GB in the end (delta: 320.6 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-07-24 01:04:02,231 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 1743.83 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 334.52 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1039.76 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 969.9 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 145.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9653.61 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 504.2 MB). Peak memory consumption was 504.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 225120.64 ms. Allocated memory was 2.5 GB in the beginning and 3.9 GB in the end (delta: 1.4 GB). Free memory was 1.9 GB in the beginning and 1.5 GB in the end (delta: 320.6 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 65). Cancelled while BasicCegarLoop was constructing difference of abstraction (66991states) and interpolant automaton (currently 8 states, 14 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 38. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 591 locations, 1 error locations. TIMEOUT Result, 225.0s OverallTime, 15 OverallIterations, 7 TraceHistogramMax, 178.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6102 SDtfs, 32209 SDslu, 3606 SDs, 0 SdLazy, 69690 SolverSat, 9160 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 153.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3509 GetRequests, 3362 SyntacticMatches, 27 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 24.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66991occurred in iteration=14, 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: 6.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 53640 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 32.7s InterpolantComputationTime, 9259 NumberOfCodeBlocks, 9259 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 9237 ConstructedInterpolants, 693 QuantifiedInterpolants, 41693198 SizeOfPredicates, 15 NumberOfNonLiveVariables, 4234 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 22 InterpolantComputations, 9 PerfectInterpolantSequences, 8050/10067 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/Problem17_label34_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_01-04-02-245.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label34_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_01-04-02-245.csv Completed graceful shutdown