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/Problem17_label46_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-22 04:37:30,187 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-22 04:37:30,189 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-22 04:37:30,201 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-22 04:37:30,201 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-22 04:37:30,202 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-22 04:37:30,203 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-22 04:37:30,205 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-22 04:37:30,206 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-22 04:37:30,207 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-22 04:37:30,208 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-22 04:37:30,208 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-22 04:37:30,209 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-22 04:37:30,212 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-22 04:37:30,214 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-22 04:37:30,214 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-22 04:37:30,215 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-22 04:37:30,223 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-22 04:37:30,224 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-22 04:37:30,228 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-22 04:37:30,229 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-22 04:37:30,230 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-22 04:37:30,237 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-22 04:37:30,237 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-22 04:37:30,237 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-22 04:37:30,238 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-22 04:37:30,239 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-22 04:37:30,240 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-22 04:37:30,245 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-22 04:37:30,246 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-22 04:37:30,246 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-22 04:37:30,247 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-22 04:37:30,251 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 04:37:30,266 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-22 04:37:30,266 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-22 04:37:30,267 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-22 04:37:30,267 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-22 04:37:30,268 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-22 04:37:30,268 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-22 04:37:30,268 INFO L133 SettingsManager]: * Use SBE=true [2018-07-22 04:37:30,268 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-22 04:37:30,269 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-22 04:37:30,269 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-22 04:37:30,269 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-22 04:37:30,269 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-22 04:37:30,269 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-22 04:37:30,269 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-22 04:37:30,270 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-22 04:37:30,270 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-22 04:37:30,270 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-22 04:37:30,270 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-22 04:37:30,270 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-22 04:37:30,271 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-22 04:37:30,271 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-22 04:37:30,271 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-22 04:37:30,271 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-22 04:37:30,271 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-22 04:37:30,272 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-22 04:37:30,272 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-22 04:37:30,272 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-22 04:37:30,272 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-22 04:37:30,272 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-22 04:37:30,324 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-22 04:37:30,339 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-22 04:37:30,345 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-22 04:37:30,347 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-22 04:37:30,347 INFO L276 PluginConnector]: CDTParser initialized [2018-07-22 04:37:30,348 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label46_false-unreach-call.c [2018-07-22 04:37:30,798 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/b5612d880/dac921a19ff64537bf4d1077276dadd5/FLAG1881d1328 [2018-07-22 04:37:31,280 INFO L276 CDTParser]: Found 1 translation units. [2018-07-22 04:37:31,281 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label46_false-unreach-call.c [2018-07-22 04:37:31,318 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/b5612d880/dac921a19ff64537bf4d1077276dadd5/FLAG1881d1328 [2018-07-22 04:37:31,444 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/b5612d880/dac921a19ff64537bf4d1077276dadd5 [2018-07-22 04:37:31,454 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-22 04:37:31,460 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-22 04:37:31,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-22 04:37:31,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-22 04:37:31,470 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-22 04:37:31,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 04:37:31" (1/1) ... [2018-07-22 04:37:31,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@539793c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 04:37:31, skipping insertion in model container [2018-07-22 04:37:31,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 04:37:31" (1/1) ... [2018-07-22 04:37:31,763 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-22 04:37:32,655 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 04:37:32,674 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-22 04:37:33,248 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 04:37:33,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 04:37:33 WrapperNode [2018-07-22 04:37:33,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-22 04:37:33,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-22 04:37:33,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-22 04:37:33,502 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-22 04:37:33,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 04:37:33" (1/1) ... [2018-07-22 04:37:33,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 04:37:33" (1/1) ... [2018-07-22 04:37:33,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-22 04:37:33,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-22 04:37:33,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-22 04:37:33,972 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-22 04:37:33,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 04:37:33" (1/1) ... [2018-07-22 04:37:33,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 04:37:33" (1/1) ... [2018-07-22 04:37:34,014 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 04:37:33" (1/1) ... [2018-07-22 04:37:34,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 04:37:33" (1/1) ... [2018-07-22 04:37:34,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 04:37:33" (1/1) ... [2018-07-22 04:37:34,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 04:37:33" (1/1) ... [2018-07-22 04:37:35,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 04:37:33" (1/1) ... [2018-07-22 04:37:35,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-22 04:37:35,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-22 04:37:35,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-22 04:37:35,056 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-22 04:37:35,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 04:37:33" (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 04:37:35,127 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-22 04:37:35,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-22 04:37:35,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-22 04:37:45,070 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-22 04:37:45,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 04:37:45 BoogieIcfgContainer [2018-07-22 04:37:45,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-22 04:37:45,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-22 04:37:45,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-22 04:37:45,074 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-22 04:37:45,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 04:37:31" (1/3) ... [2018-07-22 04:37:45,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44bdb018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 04:37:45, skipping insertion in model container [2018-07-22 04:37:45,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 04:37:33" (2/3) ... [2018-07-22 04:37:45,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44bdb018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 04:37:45, skipping insertion in model container [2018-07-22 04:37:45,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 04:37:45" (3/3) ... [2018-07-22 04:37:45,078 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label46_false-unreach-call.c [2018-07-22 04:37:45,085 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-22 04:37:45,095 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-22 04:37:45,158 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-22 04:37:45,159 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-22 04:37:45,159 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-22 04:37:45,159 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-22 04:37:45,159 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-22 04:37:45,160 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-22 04:37:45,160 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-22 04:37:45,160 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-22 04:37:45,160 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-22 04:37:45,197 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states. [2018-07-22 04:37:45,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-07-22 04:37:45,202 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 04:37:45,203 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 04:37:45,203 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 04:37:45,207 INFO L82 PathProgramCache]: Analyzing trace with hash -159296518, now seen corresponding path program 1 times [2018-07-22 04:37:45,208 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 04:37:45,209 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 04:37:45,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 04:37:45,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 04:37:45,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 04:37:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 04:37:45,578 WARN L169 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-07-22 04:37:45,581 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 04:37:45,584 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 04:37:45,584 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 04:37:45,586 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 04:37:45,601 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 04:37:45,601 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 04:37:45,604 INFO L87 Difference]: Start difference. First operand 591 states. Second operand 4 states. [2018-07-22 04:37:53,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 04:37:53,819 INFO L93 Difference]: Finished difference Result 2122 states and 3950 transitions. [2018-07-22 04:37:53,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 04:37:53,820 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-07-22 04:37:53,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 04:37:53,849 INFO L225 Difference]: With dead ends: 2122 [2018-07-22 04:37:53,849 INFO L226 Difference]: Without dead ends: 1524 [2018-07-22 04:37:53,861 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 04:37:53,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2018-07-22 04:37:54,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1497. [2018-07-22 04:37:54,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1497 states. [2018-07-22 04:37:54,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 2656 transitions. [2018-07-22 04:37:54,017 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 2656 transitions. Word has length 11 [2018-07-22 04:37:54,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 04:37:54,017 INFO L471 AbstractCegarLoop]: Abstraction has 1497 states and 2656 transitions. [2018-07-22 04:37:54,017 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 04:37:54,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 2656 transitions. [2018-07-22 04:37:54,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-07-22 04:37:54,021 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 04:37:54,021 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] [2018-07-22 04:37:54,021 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 04:37:54,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1530449928, now seen corresponding path program 1 times [2018-07-22 04:37:54,022 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 04:37:54,022 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 04:37:54,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 04:37:54,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 04:37:54,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 04:37:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 04:37:54,270 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 04:37:54,270 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 04:37:54,270 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 04:37:54,273 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 04:37:54,273 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 04:37:54,274 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 04:37:54,274 INFO L87 Difference]: Start difference. First operand 1497 states and 2656 transitions. Second operand 4 states. [2018-07-22 04:38:02,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 04:38:02,999 INFO L93 Difference]: Finished difference Result 5604 states and 10151 transitions. [2018-07-22 04:38:02,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 04:38:02,999 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 86 [2018-07-22 04:38:03,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 04:38:03,021 INFO L225 Difference]: With dead ends: 5604 [2018-07-22 04:38:03,021 INFO L226 Difference]: Without dead ends: 4109 [2018-07-22 04:38:03,026 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 04:38:03,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4109 states. [2018-07-22 04:38:03,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4109 to 4098. [2018-07-22 04:38:03,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4098 states. [2018-07-22 04:38:03,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 6039 transitions. [2018-07-22 04:38:03,151 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 6039 transitions. Word has length 86 [2018-07-22 04:38:03,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 04:38:03,151 INFO L471 AbstractCegarLoop]: Abstraction has 4098 states and 6039 transitions. [2018-07-22 04:38:03,152 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 04:38:03,152 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 6039 transitions. [2018-07-22 04:38:03,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-07-22 04:38:03,166 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 04:38:03,166 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] [2018-07-22 04:38:03,166 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 04:38:03,166 INFO L82 PathProgramCache]: Analyzing trace with hash 296549568, now seen corresponding path program 1 times [2018-07-22 04:38:03,167 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 04:38:03,167 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 04:38:03,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 04:38:03,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 04:38:03,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 04:38:03,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 04:38:03,734 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 04:38:03,735 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 04:38:03,735 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 04:38:03,736 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 04:38:03,736 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 04:38:03,736 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 04:38:03,737 INFO L87 Difference]: Start difference. First operand 4098 states and 6039 transitions. Second operand 4 states. [2018-07-22 04:38:09,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 04:38:09,809 INFO L93 Difference]: Finished difference Result 15917 states and 23589 transitions. [2018-07-22 04:38:09,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 04:38:09,810 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 141 [2018-07-22 04:38:09,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 04:38:09,868 INFO L225 Difference]: With dead ends: 15917 [2018-07-22 04:38:09,868 INFO L226 Difference]: Without dead ends: 11821 [2018-07-22 04:38:09,876 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 04:38:09,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11821 states. [2018-07-22 04:38:10,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11821 to 11377. [2018-07-22 04:38:10,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11377 states. [2018-07-22 04:38:10,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11377 states to 11377 states and 15256 transitions. [2018-07-22 04:38:10,154 INFO L78 Accepts]: Start accepts. Automaton has 11377 states and 15256 transitions. Word has length 141 [2018-07-22 04:38:10,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 04:38:10,155 INFO L471 AbstractCegarLoop]: Abstraction has 11377 states and 15256 transitions. [2018-07-22 04:38:10,155 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 04:38:10,156 INFO L276 IsEmpty]: Start isEmpty. Operand 11377 states and 15256 transitions. [2018-07-22 04:38:10,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-07-22 04:38:10,162 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 04:38:10,162 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 04:38:10,162 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 04:38:10,163 INFO L82 PathProgramCache]: Analyzing trace with hash 722326283, now seen corresponding path program 1 times [2018-07-22 04:38:10,163 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 04:38:10,163 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 04:38:10,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 04:38:10,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 04:38:10,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 04:38:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 04:38:10,580 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-07-22 04:38:10,580 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 04:38:10,580 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 04:38:10,581 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 04:38:10,581 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 04:38:10,581 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 04:38:10,581 INFO L87 Difference]: Start difference. First operand 11377 states and 15256 transitions. Second operand 4 states. [2018-07-22 04:38:14,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 04:38:14,588 INFO L93 Difference]: Finished difference Result 40649 states and 55397 transitions. [2018-07-22 04:38:14,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 04:38:14,588 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 161 [2018-07-22 04:38:14,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 04:38:14,685 INFO L225 Difference]: With dead ends: 40649 [2018-07-22 04:38:14,686 INFO L226 Difference]: Without dead ends: 29274 [2018-07-22 04:38:14,705 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 04:38:14,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29274 states. [2018-07-22 04:38:15,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29274 to 29274. [2018-07-22 04:38:15,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29274 states. [2018-07-22 04:38:15,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29274 states to 29274 states and 35648 transitions. [2018-07-22 04:38:15,292 INFO L78 Accepts]: Start accepts. Automaton has 29274 states and 35648 transitions. Word has length 161 [2018-07-22 04:38:15,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 04:38:15,293 INFO L471 AbstractCegarLoop]: Abstraction has 29274 states and 35648 transitions. [2018-07-22 04:38:15,293 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 04:38:15,293 INFO L276 IsEmpty]: Start isEmpty. Operand 29274 states and 35648 transitions. [2018-07-22 04:38:15,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-07-22 04:38:15,302 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 04:38:15,302 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:38:15,302 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 04:38:15,302 INFO L82 PathProgramCache]: Analyzing trace with hash 866583566, now seen corresponding path program 1 times [2018-07-22 04:38:15,303 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 04:38:15,303 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 04:38:15,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 04:38:15,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 04:38:15,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 04:38:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 04:38:15,813 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 91 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 04:38:15,813 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 04:38:15,813 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 04:38:15,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 04:38:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 04:38:15,949 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 04:38:16,101 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-07-22 04:38:16,135 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 04:38:16,135 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-07-22 04:38:16,136 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 04:38:16,136 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 04:38:16,136 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-22 04:38:16,136 INFO L87 Difference]: Start difference. First operand 29274 states and 35648 transitions. Second operand 5 states. [2018-07-22 04:38:24,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 04:38:24,946 INFO L93 Difference]: Finished difference Result 73884 states and 90487 transitions. [2018-07-22 04:38:24,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-22 04:38:24,947 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 216 [2018-07-22 04:38:24,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 04:38:25,021 INFO L225 Difference]: With dead ends: 73884 [2018-07-22 04:38:25,021 INFO L226 Difference]: Without dead ends: 36839 [2018-07-22 04:38:25,051 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-22 04:38:25,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36839 states. [2018-07-22 04:38:25,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36839 to 28291. [2018-07-22 04:38:25,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28291 states. [2018-07-22 04:38:25,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28291 states to 28291 states and 32235 transitions. [2018-07-22 04:38:25,601 INFO L78 Accepts]: Start accepts. Automaton has 28291 states and 32235 transitions. Word has length 216 [2018-07-22 04:38:25,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 04:38:25,603 INFO L471 AbstractCegarLoop]: Abstraction has 28291 states and 32235 transitions. [2018-07-22 04:38:25,603 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 04:38:25,603 INFO L276 IsEmpty]: Start isEmpty. Operand 28291 states and 32235 transitions. [2018-07-22 04:38:25,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-07-22 04:38:25,606 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 04:38:25,607 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:38:25,607 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 04:38:25,607 INFO L82 PathProgramCache]: Analyzing trace with hash -772650284, now seen corresponding path program 1 times [2018-07-22 04:38:25,607 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 04:38:25,607 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 04:38:25,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 04:38:25,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 04:38:25,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 04:38:25,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 04:38:26,223 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-07-22 04:38:26,297 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 17 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 04:38:26,297 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 04:38:26,297 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) [2018-07-22 04:38:26,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 04:38:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 04:38:26,417 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 04:38:26,910 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 17 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 04:38:26,943 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-22 04:38:26,944 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-07-22 04:38:26,944 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-22 04:38:26,944 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-22 04:38:26,945 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-07-22 04:38:26,945 INFO L87 Difference]: Start difference. First operand 28291 states and 32235 transitions. Second operand 7 states. [2018-07-22 04:38:37,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 04:38:37,556 INFO L93 Difference]: Finished difference Result 76666 states and 87189 transitions. [2018-07-22 04:38:37,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-22 04:38:37,556 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 233 [2018-07-22 04:38:37,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 04:38:37,622 INFO L225 Difference]: With dead ends: 76666 [2018-07-22 04:38:37,623 INFO L226 Difference]: Without dead ends: 44521 [2018-07-22 04:38:37,641 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-07-22 04:38:37,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44521 states. [2018-07-22 04:38:38,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44521 to 40645. [2018-07-22 04:38:38,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40645 states. [2018-07-22 04:38:38,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40645 states to 40645 states and 45109 transitions. [2018-07-22 04:38:38,095 INFO L78 Accepts]: Start accepts. Automaton has 40645 states and 45109 transitions. Word has length 233 [2018-07-22 04:38:38,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 04:38:38,096 INFO L471 AbstractCegarLoop]: Abstraction has 40645 states and 45109 transitions. [2018-07-22 04:38:38,096 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-22 04:38:38,096 INFO L276 IsEmpty]: Start isEmpty. Operand 40645 states and 45109 transitions. [2018-07-22 04:38:38,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2018-07-22 04:38:38,104 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 04:38:38,105 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 04:38:38,105 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 04:38:38,105 INFO L82 PathProgramCache]: Analyzing trace with hash 2069393758, now seen corresponding path program 1 times [2018-07-22 04:38:38,105 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 04:38:38,105 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 04:38:38,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 04:38:38,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 04:38:38,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 04:38:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 04:38:38,834 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 204 proven. 83 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-22 04:38:38,834 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 04:38:38,834 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) [2018-07-22 04:38:38,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 04:38:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 04:38:38,984 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 04:38:39,269 WARN L169 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 17 [2018-07-22 04:38:40,130 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-07-22 04:38:40,163 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 04:38:40,164 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-07-22 04:38:40,164 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-22 04:38:40,165 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-22 04:38:40,165 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-22 04:38:40,165 INFO L87 Difference]: Start difference. First operand 40645 states and 45109 transitions. Second operand 6 states. [2018-07-22 04:38:48,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 04:38:48,527 INFO L93 Difference]: Finished difference Result 103094 states and 114878 transitions. [2018-07-22 04:38:48,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-22 04:38:48,527 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 355 [2018-07-22 04:38:48,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 04:38:48,587 INFO L225 Difference]: With dead ends: 103094 [2018-07-22 04:38:48,587 INFO L226 Difference]: Without dead ends: 62877 [2018-07-22 04:38:48,617 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-22 04:38:48,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62877 states. [2018-07-22 04:38:49,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62877 to 62425. [2018-07-22 04:38:49,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62425 states. [2018-07-22 04:38:49,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62425 states to 62425 states and 67877 transitions. [2018-07-22 04:38:49,682 INFO L78 Accepts]: Start accepts. Automaton has 62425 states and 67877 transitions. Word has length 355 [2018-07-22 04:38:49,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 04:38:49,683 INFO L471 AbstractCegarLoop]: Abstraction has 62425 states and 67877 transitions. [2018-07-22 04:38:49,683 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-22 04:38:49,683 INFO L276 IsEmpty]: Start isEmpty. Operand 62425 states and 67877 transitions. [2018-07-22 04:38:49,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2018-07-22 04:38:49,695 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 04:38:49,696 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 04:38:49,696 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 04:38:49,697 INFO L82 PathProgramCache]: Analyzing trace with hash -861572352, now seen corresponding path program 1 times [2018-07-22 04:38:49,697 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 04:38:49,697 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 04:38:49,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 04:38:49,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 04:38:49,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 04:38:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 04:38:50,306 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 26 proven. 315 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 04:38:50,306 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 04:38:50,306 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 04:38:50,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 04:38:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 04:38:50,424 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 04:38:50,611 WARN L169 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 17 [2018-07-22 04:38:51,380 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-07-22 04:38:51,413 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 04:38:51,414 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-07-22 04:38:51,415 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-22 04:38:51,415 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-22 04:38:51,415 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-07-22 04:38:51,415 INFO L87 Difference]: Start difference. First operand 62425 states and 67877 transitions. Second operand 7 states. [2018-07-22 04:39:17,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 04:39:17,104 INFO L93 Difference]: Finished difference Result 158555 states and 172145 transitions. [2018-07-22 04:39:17,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-22 04:39:17,105 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 400 [2018-07-22 04:39:17,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 04:39:17,224 INFO L225 Difference]: With dead ends: 158555 [2018-07-22 04:39:17,224 INFO L226 Difference]: Without dead ends: 92286 [2018-07-22 04:39:17,267 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 403 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-07-22 04:39:17,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92286 states. [2018-07-22 04:39:18,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92286 to 80726. [2018-07-22 04:39:18,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80726 states. [2018-07-22 04:39:18,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80726 states to 80726 states and 85731 transitions. [2018-07-22 04:39:18,745 INFO L78 Accepts]: Start accepts. Automaton has 80726 states and 85731 transitions. Word has length 400 [2018-07-22 04:39:18,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 04:39:18,745 INFO L471 AbstractCegarLoop]: Abstraction has 80726 states and 85731 transitions. [2018-07-22 04:39:18,745 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-22 04:39:18,745 INFO L276 IsEmpty]: Start isEmpty. Operand 80726 states and 85731 transitions. [2018-07-22 04:39:18,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2018-07-22 04:39:18,763 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 04:39:18,764 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 04:39:18,764 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 04:39:18,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1034157851, now seen corresponding path program 1 times [2018-07-22 04:39:18,764 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 04:39:18,764 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 04:39:18,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 04:39:18,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 04:39:18,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 04:39:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 04:39:19,450 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 453 proven. 83 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2018-07-22 04:39:19,451 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 04:39:19,451 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 04:39:19,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 04:39:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 04:39:19,589 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 04:39:22,477 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 388 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2018-07-22 04:39:22,497 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 04:39:22,510 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-07-22 04:39:22,511 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-22 04:39:22,511 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-22 04:39:22,512 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-07-22 04:39:22,512 INFO L87 Difference]: Start difference. First operand 80726 states and 85731 transitions. Second operand 7 states. [2018-07-22 04:39:32,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 04:39:32,044 INFO L93 Difference]: Finished difference Result 172128 states and 182911 transitions. [2018-07-22 04:39:32,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-22 04:39:32,044 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 521 [2018-07-22 04:39:32,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 04:39:32,125 INFO L225 Difference]: With dead ends: 172128 [2018-07-22 04:39:32,125 INFO L226 Difference]: Without dead ends: 92256 [2018-07-22 04:39:32,159 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-07-22 04:39:32,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92256 states. [2018-07-22 04:39:32,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92256 to 88402. [2018-07-22 04:39:32,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88402 states. [2018-07-22 04:39:33,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88402 states to 88402 states and 93346 transitions. [2018-07-22 04:39:33,415 INFO L78 Accepts]: Start accepts. Automaton has 88402 states and 93346 transitions. Word has length 521 [2018-07-22 04:39:33,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 04:39:33,415 INFO L471 AbstractCegarLoop]: Abstraction has 88402 states and 93346 transitions. [2018-07-22 04:39:33,415 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-22 04:39:33,415 INFO L276 IsEmpty]: Start isEmpty. Operand 88402 states and 93346 transitions. [2018-07-22 04:39:33,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 742 [2018-07-22 04:39:33,447 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 04:39:33,448 INFO L358 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 04:39:33,448 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 04:39:33,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1671008837, now seen corresponding path program 1 times [2018-07-22 04:39:33,448 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 04:39:33,449 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 04:39:33,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 04:39:33,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 04:39:33,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 04:39:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 04:39:34,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 787 proven. 156 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2018-07-22 04:39:34,513 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 04:39:34,513 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 04:39:34,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 04:39:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 04:39:34,692 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 04:39:35,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 787 proven. 156 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2018-07-22 04:39:35,292 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-22 04:39:35,293 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-07-22 04:39:35,293 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 04:39:35,294 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 04:39:35,294 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-22 04:39:35,294 INFO L87 Difference]: Start difference. First operand 88402 states and 93346 transitions. Second operand 4 states. [2018-07-22 04:39:38,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 04:39:38,692 INFO L93 Difference]: Finished difference Result 181505 states and 191836 transitions. [2018-07-22 04:39:38,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 04:39:38,693 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 741 [2018-07-22 04:39:38,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 04:39:38,784 INFO L225 Difference]: With dead ends: 181505 [2018-07-22 04:39:38,784 INFO L226 Difference]: Without dead ends: 93957 [2018-07-22 04:39:38,824 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 746 GetRequests, 742 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-22 04:39:38,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93957 states. [2018-07-22 04:39:39,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93957 to 71746. [2018-07-22 04:39:39,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71746 states. [2018-07-22 04:39:39,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71746 states to 71746 states and 75648 transitions. [2018-07-22 04:39:39,916 INFO L78 Accepts]: Start accepts. Automaton has 71746 states and 75648 transitions. Word has length 741 [2018-07-22 04:39:39,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 04:39:39,917 INFO L471 AbstractCegarLoop]: Abstraction has 71746 states and 75648 transitions. [2018-07-22 04:39:39,917 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 04:39:39,917 INFO L276 IsEmpty]: Start isEmpty. Operand 71746 states and 75648 transitions. [2018-07-22 04:39:39,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2018-07-22 04:39:39,940 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 04:39:39,941 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 04:39:39,941 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 04:39:39,941 INFO L82 PathProgramCache]: Analyzing trace with hash -676241326, now seen corresponding path program 1 times [2018-07-22 04:39:39,941 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 04:39:39,941 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 04:39:39,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 04:39:39,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 04:39:39,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 04:39:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 04:39:41,510 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 404 proven. 248 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-22 04:39:41,510 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 04:39:41,510 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 04:39:41,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 04:39:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 04:39:41,739 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 04:39:47,570 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 404 proven. 248 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-22 04:39:47,591 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-22 04:39:47,591 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 8 [2018-07-22 04:39:47,593 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-22 04:39:47,594 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-22 04:39:47,594 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-07-22 04:39:47,594 INFO L87 Difference]: Start difference. First operand 71746 states and 75648 transitions. Second operand 9 states. Received shutdown request... [2018-07-22 04:41:35,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-22 04:41:35,674 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-22 04:41:35,956 WARN L202 ceAbstractionStarter]: Timeout [2018-07-22 04:41:35,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 04:41:35 BoogieIcfgContainer [2018-07-22 04:41:35,956 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-22 04:41:35,999 INFO L168 Benchmark]: Toolchain (without parser) took 244544.17 ms. Allocated memory was 309.9 MB in the beginning and 2.4 GB in the end (delta: 2.0 GB). Free memory was 248.4 MB in the beginning and 952.7 MB in the end (delta: -704.3 MB). Peak memory consumption was 1.3 GB. Max. memory is 5.3 GB. [2018-07-22 04:41:36,000 INFO L168 Benchmark]: CDTParser took 0.93 ms. Allocated memory is still 309.9 MB. Free memory is still 275.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-22 04:41:36,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2038.13 ms. Allocated memory was 309.9 MB in the beginning and 339.7 MB in the end (delta: 29.9 MB). Free memory was 247.4 MB in the beginning and 173.9 MB in the end (delta: 73.5 MB). Peak memory consumption was 103.4 MB. Max. memory is 5.3 GB. [2018-07-22 04:41:36,001 INFO L168 Benchmark]: Boogie Procedure Inliner took 470.48 ms. Allocated memory was 339.7 MB in the beginning and 402.7 MB in the end (delta: 62.9 MB). Free memory was 173.9 MB in the beginning and 272.6 MB in the end (delta: -98.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 5.3 GB. [2018-07-22 04:41:36,002 INFO L168 Benchmark]: Boogie Preprocessor took 1083.15 ms. Allocated memory was 402.7 MB in the beginning and 615.0 MB in the end (delta: 212.3 MB). Free memory was 272.6 MB in the beginning and 511.0 MB in the end (delta: -238.5 MB). Peak memory consumption was 71.4 MB. Max. memory is 5.3 GB. [2018-07-22 04:41:36,002 INFO L168 Benchmark]: RCFGBuilder took 10015.01 ms. Allocated memory was 615.0 MB in the beginning and 726.1 MB in the end (delta: 111.1 MB). Free memory was 511.0 MB in the beginning and 497.7 MB in the end (delta: 13.3 MB). Peak memory consumption was 207.9 MB. Max. memory is 5.3 GB. [2018-07-22 04:41:36,003 INFO L168 Benchmark]: TraceAbstraction took 230884.80 ms. Allocated memory was 726.1 MB in the beginning and 2.4 GB in the end (delta: 1.6 GB). Free memory was 497.7 MB in the beginning and 952.7 MB in the end (delta: -455.0 MB). Peak memory consumption was 1.2 GB. Max. memory is 5.3 GB. [2018-07-22 04:41:36,037 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.93 ms. Allocated memory is still 309.9 MB. Free memory is still 275.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 2038.13 ms. Allocated memory was 309.9 MB in the beginning and 339.7 MB in the end (delta: 29.9 MB). Free memory was 247.4 MB in the beginning and 173.9 MB in the end (delta: 73.5 MB). Peak memory consumption was 103.4 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 470.48 ms. Allocated memory was 339.7 MB in the beginning and 402.7 MB in the end (delta: 62.9 MB). Free memory was 173.9 MB in the beginning and 272.6 MB in the end (delta: -98.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 1083.15 ms. Allocated memory was 402.7 MB in the beginning and 615.0 MB in the end (delta: 212.3 MB). Free memory was 272.6 MB in the beginning and 511.0 MB in the end (delta: -238.5 MB). Peak memory consumption was 71.4 MB. Max. memory is 5.3 GB. * RCFGBuilder took 10015.01 ms. Allocated memory was 615.0 MB in the beginning and 726.1 MB in the end (delta: 111.1 MB). Free memory was 511.0 MB in the beginning and 497.7 MB in the end (delta: 13.3 MB). Peak memory consumption was 207.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 230884.80 ms. Allocated memory was 726.1 MB in the beginning and 2.4 GB in the end (delta: 1.6 GB). Free memory was 497.7 MB in the beginning and 952.7 MB in the end (delta: -455.0 MB). Peak memory consumption was 1.2 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 38]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 38). Cancelled while BasicCegarLoop was constructing difference of abstraction (71746states) and interpolant automaton (currently 10 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (66120 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 591 locations, 1 error locations. TIMEOUT Result, 230.8s OverallTime, 11 OverallIterations, 7 TraceHistogramMax, 202.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3351 SDtfs, 21415 SDslu, 2135 SDs, 0 SdLazy, 43564 SolverSat, 8014 SolverUnsat, 48 SolverUnknown, 0 SolverNotchecked, 188.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3315 GetRequests, 3262 SyntacticMatches, 4 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=88402occurred in iteration=9, 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: 7.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 50983 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 16.5s InterpolantComputationTime, 6917 NumberOfCodeBlocks, 6917 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 6899 ConstructedInterpolants, 951 QuantifiedInterpolants, 40981740 SizeOfPredicates, 3 NumberOfNonLiveVariables, 4145 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 18 InterpolantComputations, 8 PerfectInterpolantSequences, 5815/7279 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/Problem17_label46_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-22_04-41-36-137.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem17_label46_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-22_04-41-36-137.csv Completed graceful shutdown