java -Xss4m -Xmx6000000000 -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 ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label49_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-22 06:39:48,361 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-22 06:39:48,363 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-22 06:39:48,376 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-22 06:39:48,377 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-22 06:39:48,378 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-22 06:39:48,379 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-22 06:39:48,383 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-22 06:39:48,385 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-22 06:39:48,387 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-22 06:39:48,387 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-22 06:39:48,387 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-22 06:39:48,388 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-22 06:39:48,391 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-22 06:39:48,392 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-22 06:39:48,393 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-22 06:39:48,394 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-22 06:39:48,404 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-22 06:39:48,405 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-22 06:39:48,407 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-22 06:39:48,408 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-22 06:39:48,409 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-22 06:39:48,413 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-22 06:39:48,430 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-22 06:39:48,453 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-22 06:39:48,453 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-22 06:39:48,454 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-22 06:39:48,454 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-22 06:39:48,454 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-22 06:39:48,455 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-22 06:39:48,455 INFO L133 SettingsManager]: * Use SBE=true [2018-07-22 06:39:48,455 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-22 06:39:48,455 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-22 06:39:48,455 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-22 06:39:48,456 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-22 06:39:48,456 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-22 06:39:48,457 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-22 06:39:48,457 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-22 06:39:48,457 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-22 06:39:48,457 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-22 06:39:48,457 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-22 06:39:48,458 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-22 06:39:48,458 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-22 06:39:48,458 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-22 06:39:48,458 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-22 06:39:48,458 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-22 06:39:48,459 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-22 06:39:48,459 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-22 06:39:48,459 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-22 06:39:48,459 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-22 06:39:48,459 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-22 06:39:48,459 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-22 06:39:48,460 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-22 06:39:48,508 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-22 06:39:48,525 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-22 06:39:48,532 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-22 06:39:48,534 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-22 06:39:48,534 INFO L276 PluginConnector]: CDTParser initialized [2018-07-22 06:39:48,535 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label49_true-unreach-call.c [2018-07-22 06:39:48,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/9712dd222/ede4adee6ab246be9a4937789c0ec292/FLAGc9bd86eb4 [2018-07-22 06:39:49,342 INFO L276 CDTParser]: Found 1 translation units. [2018-07-22 06:39:49,342 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label49_true-unreach-call.c [2018-07-22 06:39:49,388 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/9712dd222/ede4adee6ab246be9a4937789c0ec292/FLAGc9bd86eb4 [2018-07-22 06:39:49,405 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/9712dd222/ede4adee6ab246be9a4937789c0ec292 [2018-07-22 06:39:49,416 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-22 06:39:49,424 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-22 06:39:49,426 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-22 06:39:49,426 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-22 06:39:49,435 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-22 06:39:49,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:39:49" (1/1) ... [2018-07-22 06:39:49,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@464c5600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:39:49, skipping insertion in model container [2018-07-22 06:39:49,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:39:49" (1/1) ... [2018-07-22 06:39:49,723 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-22 06:39:50,267 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 06:39:50,287 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-22 06:39:50,625 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 06:39:50,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:39:50 WrapperNode [2018-07-22 06:39:50,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-22 06:39:50,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-22 06:39:50,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-22 06:39:50,692 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-22 06:39:50,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:39:50" (1/1) ... [2018-07-22 06:39:50,742 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:39:50" (1/1) ... [2018-07-22 06:39:50,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-22 06:39:50,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-22 06:39:50,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-22 06:39:50,850 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-22 06:39:50,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:39:50" (1/1) ... [2018-07-22 06:39:50,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:39:50" (1/1) ... [2018-07-22 06:39:50,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:39:50" (1/1) ... [2018-07-22 06:39:50,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:39:50" (1/1) ... [2018-07-22 06:39:50,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:39:50" (1/1) ... [2018-07-22 06:39:50,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:39:50" (1/1) ... [2018-07-22 06:39:50,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:39:50" (1/1) ... [2018-07-22 06:39:50,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-22 06:39:50,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-22 06:39:50,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-22 06:39:50,978 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-22 06:39:50,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:39:50" (1/1) ... No working directory specified, using /storage/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 [2018-07-22 06:39:51,380 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-22 06:39:51,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-22 06:39:51,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-22 06:39:57,308 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-22 06:39:57,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:39:57 BoogieIcfgContainer [2018-07-22 06:39:57,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-22 06:39:57,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-22 06:39:57,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-22 06:39:57,313 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-22 06:39:57,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 06:39:49" (1/3) ... [2018-07-22 06:39:57,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d069a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:39:57, skipping insertion in model container [2018-07-22 06:39:57,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:39:50" (2/3) ... [2018-07-22 06:39:57,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d069a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:39:57, skipping insertion in model container [2018-07-22 06:39:57,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:39:57" (3/3) ... [2018-07-22 06:39:57,317 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label49_true-unreach-call.c [2018-07-22 06:39:57,324 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-22 06:39:57,333 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-22 06:39:57,384 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-22 06:39:57,385 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-22 06:39:57,385 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-22 06:39:57,385 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-22 06:39:57,385 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-22 06:39:57,385 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-22 06:39:57,385 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-22 06:39:57,385 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-22 06:39:57,385 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-22 06:39:57,421 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states. [2018-07-22 06:39:57,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-07-22 06:39:57,442 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 06:39:57,443 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 06:39:57,443 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 06:39:57,449 INFO L82 PathProgramCache]: Analyzing trace with hash -2100663006, now seen corresponding path program 1 times [2018-07-22 06:39:57,450 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 06:39:57,451 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 06:39:57,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:39:57,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 06:39:57,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:39:57,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 06:39:58,457 WARN L169 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-07-22 06:39:58,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 06:39:58,528 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 06:39:58,529 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 06:39:58,533 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 06:39:58,548 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 06:39:58,548 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 06:39:58,551 INFO L87 Difference]: Start difference. First operand 303 states. Second operand 4 states. [2018-07-22 06:40:01,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 06:40:01,909 INFO L93 Difference]: Finished difference Result 1089 states and 1954 transitions. [2018-07-22 06:40:01,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 06:40:01,911 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 169 [2018-07-22 06:40:01,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 06:40:01,957 INFO L225 Difference]: With dead ends: 1089 [2018-07-22 06:40:01,957 INFO L226 Difference]: Without dead ends: 779 [2018-07-22 06:40:01,977 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 06:40:02,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2018-07-22 06:40:02,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 515. [2018-07-22 06:40:02,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 515 states. [2018-07-22 06:40:02,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 887 transitions. [2018-07-22 06:40:02,067 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 887 transitions. Word has length 169 [2018-07-22 06:40:02,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 06:40:02,069 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 887 transitions. [2018-07-22 06:40:02,069 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 06:40:02,069 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 887 transitions. [2018-07-22 06:40:02,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-07-22 06:40:02,075 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 06:40:02,075 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-22 06:40:02,075 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 06:40:02,076 INFO L82 PathProgramCache]: Analyzing trace with hash -247207855, now seen corresponding path program 1 times [2018-07-22 06:40:02,076 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 06:40:02,076 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 06:40:02,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:02,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 06:40:02,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:02,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 06:40:02,249 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 06:40:02,250 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 06:40:02,250 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-22 06:40:02,252 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 06:40:02,252 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 06:40:02,252 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 06:40:02,253 INFO L87 Difference]: Start difference. First operand 515 states and 887 transitions. Second operand 3 states. [2018-07-22 06:40:02,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 06:40:02,695 INFO L93 Difference]: Finished difference Result 1528 states and 2640 transitions. [2018-07-22 06:40:02,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 06:40:02,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2018-07-22 06:40:02,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 06:40:02,703 INFO L225 Difference]: With dead ends: 1528 [2018-07-22 06:40:02,703 INFO L226 Difference]: Without dead ends: 1015 [2018-07-22 06:40:02,706 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 06:40:02,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2018-07-22 06:40:02,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 1013. [2018-07-22 06:40:02,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1013 states. [2018-07-22 06:40:02,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1747 transitions. [2018-07-22 06:40:02,761 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1747 transitions. Word has length 175 [2018-07-22 06:40:02,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 06:40:02,761 INFO L471 AbstractCegarLoop]: Abstraction has 1013 states and 1747 transitions. [2018-07-22 06:40:02,761 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-22 06:40:02,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1747 transitions. [2018-07-22 06:40:02,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-07-22 06:40:02,769 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 06:40:02,769 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-22 06:40:02,770 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 06:40:02,770 INFO L82 PathProgramCache]: Analyzing trace with hash 2025777110, now seen corresponding path program 1 times [2018-07-22 06:40:02,770 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 06:40:02,770 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 06:40:02,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:02,771 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 06:40:02,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 06:40:02,886 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 06:40:02,887 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 06:40:02,887 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-22 06:40:02,887 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 06:40:02,888 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 06:40:02,888 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 06:40:02,888 INFO L87 Difference]: Start difference. First operand 1013 states and 1747 transitions. Second operand 3 states. [2018-07-22 06:40:07,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 06:40:07,850 INFO L93 Difference]: Finished difference Result 2922 states and 5108 transitions. [2018-07-22 06:40:07,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 06:40:07,851 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2018-07-22 06:40:07,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 06:40:07,862 INFO L225 Difference]: With dead ends: 2922 [2018-07-22 06:40:07,862 INFO L226 Difference]: Without dead ends: 1911 [2018-07-22 06:40:07,865 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 06:40:07,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1911 states. [2018-07-22 06:40:07,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1911 to 1908. [2018-07-22 06:40:07,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1908 states. [2018-07-22 06:40:07,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1908 states to 1908 states and 3067 transitions. [2018-07-22 06:40:07,934 INFO L78 Accepts]: Start accepts. Automaton has 1908 states and 3067 transitions. Word has length 176 [2018-07-22 06:40:07,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 06:40:07,934 INFO L471 AbstractCegarLoop]: Abstraction has 1908 states and 3067 transitions. [2018-07-22 06:40:07,934 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-22 06:40:07,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1908 states and 3067 transitions. [2018-07-22 06:40:07,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-07-22 06:40:07,941 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 06:40:07,941 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 06:40:07,941 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 06:40:07,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1073215229, now seen corresponding path program 1 times [2018-07-22 06:40:07,942 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 06:40:07,942 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 06:40:07,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:07,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 06:40:07,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:07,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 06:40:08,059 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 06:40:08,059 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 06:40:08,059 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-22 06:40:08,061 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 06:40:08,061 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 06:40:08,061 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 06:40:08,062 INFO L87 Difference]: Start difference. First operand 1908 states and 3067 transitions. Second operand 3 states. [2018-07-22 06:40:09,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 06:40:09,205 INFO L93 Difference]: Finished difference Result 5475 states and 8947 transitions. [2018-07-22 06:40:09,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 06:40:09,253 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2018-07-22 06:40:09,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 06:40:09,270 INFO L225 Difference]: With dead ends: 5475 [2018-07-22 06:40:09,270 INFO L226 Difference]: Without dead ends: 3569 [2018-07-22 06:40:09,274 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 06:40:09,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3569 states. [2018-07-22 06:40:09,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3569 to 3540. [2018-07-22 06:40:09,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3540 states. [2018-07-22 06:40:09,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3540 states to 3540 states and 5597 transitions. [2018-07-22 06:40:09,385 INFO L78 Accepts]: Start accepts. Automaton has 3540 states and 5597 transitions. Word has length 178 [2018-07-22 06:40:09,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 06:40:09,385 INFO L471 AbstractCegarLoop]: Abstraction has 3540 states and 5597 transitions. [2018-07-22 06:40:09,385 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-22 06:40:09,385 INFO L276 IsEmpty]: Start isEmpty. Operand 3540 states and 5597 transitions. [2018-07-22 06:40:09,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-07-22 06:40:09,393 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 06:40:09,393 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 06:40:09,393 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 06:40:09,393 INFO L82 PathProgramCache]: Analyzing trace with hash 217486526, now seen corresponding path program 1 times [2018-07-22 06:40:09,394 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 06:40:09,395 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 06:40:09,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:09,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 06:40:09,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 06:40:09,729 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 06:40:09,729 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 06:40:09,730 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 06:40:09,730 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 06:40:09,730 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 06:40:09,730 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 06:40:09,731 INFO L87 Difference]: Start difference. First operand 3540 states and 5597 transitions. Second operand 4 states. [2018-07-22 06:40:14,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 06:40:14,521 INFO L93 Difference]: Finished difference Result 13721 states and 21899 transitions. [2018-07-22 06:40:14,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 06:40:14,521 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 193 [2018-07-22 06:40:14,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 06:40:14,566 INFO L225 Difference]: With dead ends: 13721 [2018-07-22 06:40:14,567 INFO L226 Difference]: Without dead ends: 10183 [2018-07-22 06:40:14,574 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 06:40:14,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10183 states. [2018-07-22 06:40:14,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10183 to 6812. [2018-07-22 06:40:14,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6812 states. [2018-07-22 06:40:14,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6812 states to 6812 states and 10191 transitions. [2018-07-22 06:40:14,867 INFO L78 Accepts]: Start accepts. Automaton has 6812 states and 10191 transitions. Word has length 193 [2018-07-22 06:40:14,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 06:40:14,868 INFO L471 AbstractCegarLoop]: Abstraction has 6812 states and 10191 transitions. [2018-07-22 06:40:14,868 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 06:40:14,868 INFO L276 IsEmpty]: Start isEmpty. Operand 6812 states and 10191 transitions. [2018-07-22 06:40:14,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-07-22 06:40:14,882 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 06:40:14,883 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 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] [2018-07-22 06:40:14,883 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 06:40:14,883 INFO L82 PathProgramCache]: Analyzing trace with hash 333592513, now seen corresponding path program 1 times [2018-07-22 06:40:14,883 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 06:40:14,884 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 06:40:14,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:14,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 06:40:14,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:14,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 06:40:15,057 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-07-22 06:40:15,057 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 06:40:15,058 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 06:40:15,058 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 06:40:15,058 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 06:40:15,058 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 06:40:15,059 INFO L87 Difference]: Start difference. First operand 6812 states and 10191 transitions. Second operand 3 states. [2018-07-22 06:40:16,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 06:40:16,484 INFO L93 Difference]: Finished difference Result 13562 states and 20320 transitions. [2018-07-22 06:40:16,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 06:40:16,484 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 206 [2018-07-22 06:40:16,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 06:40:16,505 INFO L225 Difference]: With dead ends: 13562 [2018-07-22 06:40:16,505 INFO L226 Difference]: Without dead ends: 6752 [2018-07-22 06:40:16,513 INFO L578 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 [2018-07-22 06:40:16,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6752 states. [2018-07-22 06:40:16,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6752 to 6748. [2018-07-22 06:40:16,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6748 states. [2018-07-22 06:40:16,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6748 states to 6748 states and 9412 transitions. [2018-07-22 06:40:16,651 INFO L78 Accepts]: Start accepts. Automaton has 6748 states and 9412 transitions. Word has length 206 [2018-07-22 06:40:16,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 06:40:16,652 INFO L471 AbstractCegarLoop]: Abstraction has 6748 states and 9412 transitions. [2018-07-22 06:40:16,652 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-22 06:40:16,652 INFO L276 IsEmpty]: Start isEmpty. Operand 6748 states and 9412 transitions. [2018-07-22 06:40:16,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-07-22 06:40:16,665 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 06:40:16,666 INFO L358 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 06:40:16,666 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 06:40:16,666 INFO L82 PathProgramCache]: Analyzing trace with hash 372169382, now seen corresponding path program 1 times [2018-07-22 06:40:16,666 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 06:40:16,667 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 06:40:16,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:16,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 06:40:16,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 06:40:17,222 WARN L169 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-07-22 06:40:17,361 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 06:40:17,362 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 06:40:17,362 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 06:40:17,362 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 06:40:17,363 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 06:40:17,363 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 06:40:17,364 INFO L87 Difference]: Start difference. First operand 6748 states and 9412 transitions. Second operand 5 states. [2018-07-22 06:40:19,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 06:40:19,765 INFO L93 Difference]: Finished difference Result 24011 states and 33702 transitions. [2018-07-22 06:40:19,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 06:40:19,798 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 209 [2018-07-22 06:40:19,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 06:40:19,841 INFO L225 Difference]: With dead ends: 24011 [2018-07-22 06:40:19,842 INFO L226 Difference]: Without dead ends: 17265 [2018-07-22 06:40:19,850 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 06:40:19,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17265 states. [2018-07-22 06:40:20,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17265 to 13867. [2018-07-22 06:40:20,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13867 states. [2018-07-22 06:40:20,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13867 states to 13867 states and 19080 transitions. [2018-07-22 06:40:20,128 INFO L78 Accepts]: Start accepts. Automaton has 13867 states and 19080 transitions. Word has length 209 [2018-07-22 06:40:20,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 06:40:20,129 INFO L471 AbstractCegarLoop]: Abstraction has 13867 states and 19080 transitions. [2018-07-22 06:40:20,132 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 06:40:20,133 INFO L276 IsEmpty]: Start isEmpty. Operand 13867 states and 19080 transitions. [2018-07-22 06:40:20,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-07-22 06:40:20,158 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 06:40:20,158 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 06:40:20,158 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 06:40:20,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1033404291, now seen corresponding path program 1 times [2018-07-22 06:40:20,160 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 06:40:20,160 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 06:40:20,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:20,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 06:40:20,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 06:40:20,312 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-07-22 06:40:20,313 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 06:40:20,313 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 06:40:20,313 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 06:40:20,314 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 06:40:20,314 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 06:40:20,314 INFO L87 Difference]: Start difference. First operand 13867 states and 19080 transitions. Second operand 3 states. [2018-07-22 06:40:21,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 06:40:21,731 INFO L93 Difference]: Finished difference Result 40794 states and 56191 transitions. [2018-07-22 06:40:21,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 06:40:21,732 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2018-07-22 06:40:21,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 06:40:21,786 INFO L225 Difference]: With dead ends: 40794 [2018-07-22 06:40:21,786 INFO L226 Difference]: Without dead ends: 26929 [2018-07-22 06:40:21,804 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 06:40:21,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26929 states. [2018-07-22 06:40:22,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26929 to 26923. [2018-07-22 06:40:22,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26923 states. [2018-07-22 06:40:22,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26923 states to 26923 states and 33815 transitions. [2018-07-22 06:40:22,180 INFO L78 Accepts]: Start accepts. Automaton has 26923 states and 33815 transitions. Word has length 217 [2018-07-22 06:40:22,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 06:40:22,180 INFO L471 AbstractCegarLoop]: Abstraction has 26923 states and 33815 transitions. [2018-07-22 06:40:22,180 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-22 06:40:22,180 INFO L276 IsEmpty]: Start isEmpty. Operand 26923 states and 33815 transitions. [2018-07-22 06:40:22,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2018-07-22 06:40:22,211 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 06:40:22,212 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 06:40:22,212 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 06:40:22,212 INFO L82 PathProgramCache]: Analyzing trace with hash 32860751, now seen corresponding path program 1 times [2018-07-22 06:40:22,212 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 06:40:22,212 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 06:40:22,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:22,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 06:40:22,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 06:40:22,377 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2018-07-22 06:40:22,377 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 06:40:22,378 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-22 06:40:22,378 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 06:40:22,378 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 06:40:22,378 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 06:40:22,378 INFO L87 Difference]: Start difference. First operand 26923 states and 33815 transitions. Second operand 3 states. [2018-07-22 06:40:23,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 06:40:23,046 INFO L93 Difference]: Finished difference Result 53756 states and 67508 transitions. [2018-07-22 06:40:23,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 06:40:23,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2018-07-22 06:40:23,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 06:40:23,101 INFO L225 Difference]: With dead ends: 53756 [2018-07-22 06:40:23,102 INFO L226 Difference]: Without dead ends: 26835 [2018-07-22 06:40:23,128 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 06:40:23,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26835 states. [2018-07-22 06:40:23,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26835 to 26835. [2018-07-22 06:40:23,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26835 states. [2018-07-22 06:40:23,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26835 states to 26835 states and 32940 transitions. [2018-07-22 06:40:23,510 INFO L78 Accepts]: Start accepts. Automaton has 26835 states and 32940 transitions. Word has length 231 [2018-07-22 06:40:23,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 06:40:23,513 INFO L471 AbstractCegarLoop]: Abstraction has 26835 states and 32940 transitions. [2018-07-22 06:40:23,513 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-22 06:40:23,513 INFO L276 IsEmpty]: Start isEmpty. Operand 26835 states and 32940 transitions. [2018-07-22 06:40:23,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2018-07-22 06:40:23,528 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 06:40:23,529 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-22 06:40:23,529 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 06:40:23,529 INFO L82 PathProgramCache]: Analyzing trace with hash 667546656, now seen corresponding path program 1 times [2018-07-22 06:40:23,529 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 06:40:23,529 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 06:40:23,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:23,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 06:40:23,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:23,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 06:40:23,862 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-07-22 06:40:23,862 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 06:40:23,862 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 06:40:23,863 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 06:40:23,863 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 06:40:23,863 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 06:40:23,863 INFO L87 Difference]: Start difference. First operand 26835 states and 32940 transitions. Second operand 4 states. [2018-07-22 06:40:25,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 06:40:25,807 INFO L93 Difference]: Finished difference Result 103403 states and 126626 transitions. [2018-07-22 06:40:25,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 06:40:25,807 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 238 [2018-07-22 06:40:25,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 06:40:25,871 INFO L225 Difference]: With dead ends: 103403 [2018-07-22 06:40:25,871 INFO L226 Difference]: Without dead ends: 76570 [2018-07-22 06:40:25,894 INFO L578 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 [2018-07-22 06:40:25,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76570 states. [2018-07-22 06:40:26,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76570 to 50295. [2018-07-22 06:40:26,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50295 states. [2018-07-22 06:40:26,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50295 states to 50295 states and 59636 transitions. [2018-07-22 06:40:26,735 INFO L78 Accepts]: Start accepts. Automaton has 50295 states and 59636 transitions. Word has length 238 [2018-07-22 06:40:26,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 06:40:26,735 INFO L471 AbstractCegarLoop]: Abstraction has 50295 states and 59636 transitions. [2018-07-22 06:40:26,735 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 06:40:26,735 INFO L276 IsEmpty]: Start isEmpty. Operand 50295 states and 59636 transitions. [2018-07-22 06:40:26,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2018-07-22 06:40:26,765 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 06:40:26,765 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 06:40:26,765 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 06:40:26,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1440473701, now seen corresponding path program 1 times [2018-07-22 06:40:26,766 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 06:40:26,766 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 06:40:26,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:26,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 06:40:26,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 06:40:27,232 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-07-22 06:40:27,233 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 06:40:27,233 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 06:40:27,233 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 06:40:27,234 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 06:40:27,234 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 06:40:27,234 INFO L87 Difference]: Start difference. First operand 50295 states and 59636 transitions. Second operand 4 states. [2018-07-22 06:40:29,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 06:40:29,406 INFO L93 Difference]: Finished difference Result 116709 states and 139923 transitions. [2018-07-22 06:40:29,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 06:40:29,407 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 374 [2018-07-22 06:40:29,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 06:40:29,462 INFO L225 Difference]: With dead ends: 116709 [2018-07-22 06:40:29,462 INFO L226 Difference]: Without dead ends: 66416 [2018-07-22 06:40:29,491 INFO L578 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 [2018-07-22 06:40:29,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66416 states. [2018-07-22 06:40:30,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66416 to 66410. [2018-07-22 06:40:30,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66410 states. [2018-07-22 06:40:30,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66410 states to 66410 states and 75498 transitions. [2018-07-22 06:40:30,467 INFO L78 Accepts]: Start accepts. Automaton has 66410 states and 75498 transitions. Word has length 374 [2018-07-22 06:40:30,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 06:40:30,467 INFO L471 AbstractCegarLoop]: Abstraction has 66410 states and 75498 transitions. [2018-07-22 06:40:30,468 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 06:40:30,468 INFO L276 IsEmpty]: Start isEmpty. Operand 66410 states and 75498 transitions. [2018-07-22 06:40:30,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2018-07-22 06:40:30,505 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 06:40:30,505 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-22 06:40:30,505 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 06:40:30,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1542513633, now seen corresponding path program 1 times [2018-07-22 06:40:30,507 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 06:40:30,507 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 06:40:30,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:30,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 06:40:30,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 06:40:31,391 WARN L169 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-07-22 06:40:33,626 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-07-22 06:40:33,626 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 06:40:33,627 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-07-22 06:40:33,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 06:40:33,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 06:40:33,958 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 06:40:34,175 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2018-07-22 06:40:34,196 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 06:40:34,196 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2018-07-22 06:40:34,197 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-22 06:40:34,197 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-22 06:40:34,197 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-07-22 06:40:34,198 INFO L87 Difference]: Start difference. First operand 66410 states and 75498 transitions. Second operand 10 states. [2018-07-22 06:40:46,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 06:40:46,027 INFO L93 Difference]: Finished difference Result 185255 states and 214655 transitions. [2018-07-22 06:40:46,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-22 06:40:46,027 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 469 [2018-07-22 06:40:46,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 06:40:46,223 INFO L225 Difference]: With dead ends: 185255 [2018-07-22 06:40:46,223 INFO L226 Difference]: Without dead ends: 118847 [2018-07-22 06:40:46,248 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 476 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=118, Invalid=188, Unknown=0, NotChecked=0, Total=306 [2018-07-22 06:40:46,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118847 states. [2018-07-22 06:40:47,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118847 to 84896. [2018-07-22 06:40:47,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84896 states. [2018-07-22 06:40:47,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84896 states to 84896 states and 94922 transitions. [2018-07-22 06:40:47,802 INFO L78 Accepts]: Start accepts. Automaton has 84896 states and 94922 transitions. Word has length 469 [2018-07-22 06:40:47,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 06:40:47,803 INFO L471 AbstractCegarLoop]: Abstraction has 84896 states and 94922 transitions. [2018-07-22 06:40:47,803 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-22 06:40:47,803 INFO L276 IsEmpty]: Start isEmpty. Operand 84896 states and 94922 transitions. [2018-07-22 06:40:47,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2018-07-22 06:40:47,878 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 06:40:47,878 INFO L358 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 06:40:47,878 INFO L414 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 06:40:47,879 INFO L82 PathProgramCache]: Analyzing trace with hash -149221255, now seen corresponding path program 1 times [2018-07-22 06:40:47,879 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 06:40:47,879 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 06:40:47,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:47,881 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 06:40:47,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:47,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 06:40:48,915 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 481 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2018-07-22 06:40:48,916 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 06:40:48,916 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 06:40:48,917 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 06:40:48,917 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 06:40:48,917 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 06:40:48,917 INFO L87 Difference]: Start difference. First operand 84896 states and 94922 transitions. Second operand 3 states. [2018-07-22 06:40:49,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 06:40:49,779 INFO L93 Difference]: Finished difference Result 224315 states and 250973 transitions. [2018-07-22 06:40:49,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 06:40:49,779 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 520 [2018-07-22 06:40:49,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 06:40:49,948 INFO L225 Difference]: With dead ends: 224315 [2018-07-22 06:40:49,948 INFO L226 Difference]: Without dead ends: 139421 [2018-07-22 06:40:50,007 INFO L578 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 [2018-07-22 06:40:50,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139421 states. [2018-07-22 06:40:51,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139421 to 139421. [2018-07-22 06:40:51,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139421 states. [2018-07-22 06:40:51,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139421 states to 139421 states and 155427 transitions. [2018-07-22 06:40:51,872 INFO L78 Accepts]: Start accepts. Automaton has 139421 states and 155427 transitions. Word has length 520 [2018-07-22 06:40:51,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 06:40:51,872 INFO L471 AbstractCegarLoop]: Abstraction has 139421 states and 155427 transitions. [2018-07-22 06:40:51,872 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-22 06:40:51,872 INFO L276 IsEmpty]: Start isEmpty. Operand 139421 states and 155427 transitions. [2018-07-22 06:40:51,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2018-07-22 06:40:51,942 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 06:40:51,943 INFO L358 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 06:40:51,943 INFO L414 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 06:40:51,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1531811313, now seen corresponding path program 1 times [2018-07-22 06:40:51,943 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 06:40:51,943 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 06:40:51,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:51,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 06:40:51,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:40:52,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 06:40:52,671 WARN L169 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 7 [2018-07-22 06:40:53,073 WARN L169 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 10 [2018-07-22 06:40:53,407 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 498 proven. 16 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2018-07-22 06:40:53,408 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 06:40:53,408 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-07-22 06:40:53,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 06:40:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 06:40:53,631 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 06:40:53,877 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 428 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2018-07-22 06:40:53,899 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 06:40:53,913 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2018-07-22 06:40:53,914 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-22 06:40:53,914 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-22 06:40:53,914 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-07-22 06:40:53,914 INFO L87 Difference]: Start difference. First operand 139421 states and 155427 transitions. Second operand 7 states. [2018-07-22 06:41:04,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 06:41:04,121 INFO L93 Difference]: Finished difference Result 1029287 states and 1141920 transitions. [2018-07-22 06:41:04,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-22 06:41:04,121 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 521 [2018-07-22 06:41:04,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 06:41:05,123 INFO L225 Difference]: With dead ends: 1029287 [2018-07-22 06:41:05,123 INFO L226 Difference]: Without dead ends: 889868 [2018-07-22 06:41:05,303 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 520 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2018-07-22 06:41:05,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889868 states. [2018-07-22 06:41:19,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889868 to 557973. [2018-07-22 06:41:19,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557973 states. [2018-07-22 06:41:20,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557973 states to 557973 states and 619085 transitions. [2018-07-22 06:41:20,252 INFO L78 Accepts]: Start accepts. Automaton has 557973 states and 619085 transitions. Word has length 521 [2018-07-22 06:41:20,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 06:41:20,252 INFO L471 AbstractCegarLoop]: Abstraction has 557973 states and 619085 transitions. [2018-07-22 06:41:20,253 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-22 06:41:20,253 INFO L276 IsEmpty]: Start isEmpty. Operand 557973 states and 619085 transitions. [2018-07-22 06:41:27,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2018-07-22 06:41:27,447 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 06:41:27,447 INFO L358 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 06:41:27,447 INFO L414 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 06:41:27,447 INFO L82 PathProgramCache]: Analyzing trace with hash 847419171, now seen corresponding path program 1 times [2018-07-22 06:41:27,448 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 06:41:27,448 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 06:41:27,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:41:27,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 06:41:27,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:41:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 06:41:28,147 WARN L169 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 7 [2018-07-22 06:41:28,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 523 proven. 0 refuted. 0 times theorem prover too weak. 1040 trivial. 0 not checked. [2018-07-22 06:41:28,491 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 06:41:28,514 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 06:41:28,515 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 06:41:28,515 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 06:41:28,515 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 06:41:28,515 INFO L87 Difference]: Start difference. First operand 557973 states and 619085 transitions. Second operand 4 states. [2018-07-22 06:41:35,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 06:41:35,574 INFO L93 Difference]: Finished difference Result 1200741 states and 1333676 transitions. [2018-07-22 06:41:35,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 06:41:35,574 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 706 [2018-07-22 06:41:35,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 06:41:36,307 INFO L225 Difference]: With dead ends: 1200741 [2018-07-22 06:41:36,307 INFO L226 Difference]: Without dead ends: 642770 [2018-07-22 06:41:36,503 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 06:41:36,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642770 states. [2018-07-22 06:41:51,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642770 to 580969. [2018-07-22 06:41:51,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580969 states. [2018-07-22 06:41:53,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580969 states to 580969 states and 635946 transitions. [2018-07-22 06:41:53,208 INFO L78 Accepts]: Start accepts. Automaton has 580969 states and 635946 transitions. Word has length 706 [2018-07-22 06:41:53,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 06:41:53,208 INFO L471 AbstractCegarLoop]: Abstraction has 580969 states and 635946 transitions. [2018-07-22 06:41:53,208 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 06:41:53,208 INFO L276 IsEmpty]: Start isEmpty. Operand 580969 states and 635946 transitions. [2018-07-22 06:41:53,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2018-07-22 06:41:53,657 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 06:41:53,658 INFO L358 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 06:41:53,658 INFO L414 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 06:41:53,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1924737390, now seen corresponding path program 1 times [2018-07-22 06:41:53,658 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 06:41:53,658 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 06:41:53,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:41:53,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 06:41:53,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 06:41:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 06:42:02,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1709 backedges. 605 proven. 4 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2018-07-22 06:42:02,348 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 06:42:02,349 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-07-22 06:42:02,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 06:42:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 06:42:02,719 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 06:42:03,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1709 backedges. 1230 proven. 0 refuted. 0 times theorem prover too weak. 479 trivial. 0 not checked. [2018-07-22 06:42:03,202 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 06:42:03,202 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-07-22 06:42:03,203 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-22 06:42:03,204 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-22 06:42:03,204 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-22 06:42:03,204 INFO L87 Difference]: Start difference. First operand 580969 states and 635946 transitions. Second operand 6 states. [2018-07-22 06:42:14,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 06:42:14,485 INFO L93 Difference]: Finished difference Result 1607361 states and 1754191 transitions. [2018-07-22 06:42:14,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-22 06:42:14,485 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 731 [2018-07-22 06:42:14,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 06:42:15,609 INFO L225 Difference]: With dead ends: 1607361 [2018-07-22 06:42:15,609 INFO L226 Difference]: Without dead ends: 1026394 [2018-07-22 06:42:15,815 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 744 GetRequests, 735 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2018-07-22 06:42:16,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026394 states. [2018-07-22 06:42:38,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026394 to 1002506. [2018-07-22 06:42:38,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1002506 states. Received shutdown request... [2018-07-22 06:42:54,506 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-22 06:42:54,510 WARN L202 ceAbstractionStarter]: Timeout [2018-07-22 06:42:54,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 06:42:54 BoogieIcfgContainer [2018-07-22 06:42:54,511 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-22 06:42:54,511 INFO L168 Benchmark]: Toolchain (without parser) took 185095.17 ms. Allocated memory was 309.3 MB in the beginning and 5.3 GB in the end (delta: 5.0 GB). Free memory was 248.3 MB in the beginning and 2.1 GB in the end (delta: -1.8 GB). Peak memory consumption was 4.5 GB. Max. memory is 5.3 GB. [2018-07-22 06:42:54,512 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-22 06:42:54,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1265.77 ms. Allocated memory was 309.3 MB in the beginning and 333.4 MB in the end (delta: 24.1 MB). Free memory was 248.3 MB in the beginning and 272.6 MB in the end (delta: -24.3 MB). Peak memory consumption was 72.1 MB. Max. memory is 5.3 GB. [2018-07-22 06:42:54,516 INFO L168 Benchmark]: Boogie Procedure Inliner took 157.21 ms. Allocated memory is still 333.4 MB. Free memory was 272.6 MB in the beginning and 257.8 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 5.3 GB. [2018-07-22 06:42:54,517 INFO L168 Benchmark]: Boogie Preprocessor took 127.39 ms. Allocated memory is still 333.4 MB. Free memory was 257.8 MB in the beginning and 247.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 5.3 GB. [2018-07-22 06:42:54,517 INFO L168 Benchmark]: RCFGBuilder took 6331.18 ms. Allocated memory was 333.4 MB in the beginning and 523.2 MB in the end (delta: 189.8 MB). Free memory was 247.2 MB in the beginning and 395.7 MB in the end (delta: -148.5 MB). Peak memory consumption was 161.7 MB. Max. memory is 5.3 GB. [2018-07-22 06:42:54,518 INFO L168 Benchmark]: TraceAbstraction took 177201.29 ms. Allocated memory was 523.2 MB in the beginning and 5.3 GB in the end (delta: 4.8 GB). Free memory was 395.7 MB in the beginning and 2.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 4.4 GB. Max. memory is 5.3 GB. [2018-07-22 06:42:54,522 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 1265.77 ms. Allocated memory was 309.3 MB in the beginning and 333.4 MB in the end (delta: 24.1 MB). Free memory was 248.3 MB in the beginning and 272.6 MB in the end (delta: -24.3 MB). Peak memory consumption was 72.1 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 157.21 ms. Allocated memory is still 333.4 MB. Free memory was 272.6 MB in the beginning and 257.8 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 127.39 ms. Allocated memory is still 333.4 MB. Free memory was 257.8 MB in the beginning and 247.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 5.3 GB. * RCFGBuilder took 6331.18 ms. Allocated memory was 333.4 MB in the beginning and 523.2 MB in the end (delta: 189.8 MB). Free memory was 247.2 MB in the beginning and 395.7 MB in the end (delta: -148.5 MB). Peak memory consumption was 161.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 177201.29 ms. Allocated memory was 523.2 MB in the beginning and 5.3 GB in the end (delta: 4.8 GB). Free memory was 395.7 MB in the beginning and 2.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 4.4 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1539]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1539). Cancelled while ReachableStatesComputation was computing reachable states (371777 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 303 locations, 1 error locations. TIMEOUT Result, 177.1s OverallTime, 16 OverallIterations, 10 TraceHistogramMax, 70.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5798 SDtfs, 15321 SDslu, 5621 SDs, 0 SdLazy, 26605 SolverSat, 3910 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 38.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1814 GetRequests, 1747 SyntacticMatches, 9 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=580969occurred in iteration=15, 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: 77.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 461005 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 7034 NumberOfCodeBlocks, 7034 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 7015 ConstructedInterpolants, 0 QuantifiedInterpolants, 9249024 SizeOfPredicates, 1 NumberOfNonLiveVariables, 2718 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 19 InterpolantComputations, 16 PerfectInterpolantSequences, 8724/9024 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/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem03_label49_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-22_06-42-54-535.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem03_label49_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-22_06-42-54-535.csv Completed graceful shutdown