java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label57_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 01:03:29,075 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 01:03:29,080 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 01:03:29,094 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 01:03:29,095 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 01:03:29,096 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 01:03:29,097 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 01:03:29,098 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 01:03:29,100 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 01:03:29,101 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 01:03:29,102 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 01:03:29,102 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 01:03:29,103 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 01:03:29,104 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 01:03:29,105 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 01:03:29,106 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 01:03:29,107 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 01:03:29,110 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 01:03:29,116 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 01:03:29,118 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 01:03:29,121 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 01:03:29,126 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 01:03:29,130 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 01:03:29,130 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 01:03:29,131 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 01:03:29,132 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 01:03:29,134 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 01:03:29,135 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 01:03:29,137 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 01:03:29,139 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 01:03:29,139 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 01:03:29,140 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 01:03:29,140 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 01:03:29,140 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 01:03:29,141 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 01:03:29,142 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 01:03:29,142 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-24 01:03:29,156 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 01:03:29,157 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 01:03:29,157 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 01:03:29,158 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 01:03:29,158 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 01:03:29,158 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 01:03:29,159 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 01:03:29,159 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 01:03:29,159 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 01:03:29,159 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 01:03:29,159 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 01:03:29,160 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 01:03:29,160 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 01:03:29,160 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 01:03:29,160 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 01:03:29,160 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 01:03:29,161 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 01:03:29,161 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 01:03:29,161 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 01:03:29,161 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 01:03:29,161 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 01:03:29,162 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 01:03:29,162 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 01:03:29,162 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 01:03:29,162 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 01:03:29,162 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 01:03:29,162 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 01:03:29,163 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 01:03:29,208 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 01:03:29,223 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 01:03:29,227 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 01:03:29,229 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 01:03:29,229 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 01:03:29,230 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label57_false-unreach-call.c [2018-07-24 01:03:29,575 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c34323ef9/f5b3565b14aa4a0a8ce2d8c18cb0efcb/FLAG9e09c7e01 [2018-07-24 01:03:29,999 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 01:03:30,000 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label57_false-unreach-call.c [2018-07-24 01:03:30,032 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c34323ef9/f5b3565b14aa4a0a8ce2d8c18cb0efcb/FLAG9e09c7e01 [2018-07-24 01:03:30,054 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c34323ef9/f5b3565b14aa4a0a8ce2d8c18cb0efcb [2018-07-24 01:03:30,066 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 01:03:30,070 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 01:03:30,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 01:03:30,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 01:03:30,080 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 01:03:30,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 01:03:30" (1/1) ... [2018-07-24 01:03:30,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d65a7e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:03:30, skipping insertion in model container [2018-07-24 01:03:30,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 01:03:30" (1/1) ... [2018-07-24 01:03:30,389 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 01:03:31,124 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 01:03:31,142 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 01:03:31,556 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 01:03:31,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:03:31 WrapperNode [2018-07-24 01:03:31,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 01:03:31,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 01:03:31,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 01:03:31,833 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 01:03:31,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:03:31" (1/1) ... [2018-07-24 01:03:31,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:03:31" (1/1) ... [2018-07-24 01:03:32,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 01:03:32,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 01:03:32,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 01:03:32,222 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 01:03:32,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:03:31" (1/1) ... [2018-07-24 01:03:32,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:03:31" (1/1) ... [2018-07-24 01:03:32,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:03:31" (1/1) ... [2018-07-24 01:03:32,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:03:31" (1/1) ... [2018-07-24 01:03:33,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:03:31" (1/1) ... [2018-07-24 01:03:33,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:03:31" (1/1) ... [2018-07-24 01:03:33,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:03:31" (1/1) ... [2018-07-24 01:03:33,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 01:03:33,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 01:03:33,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 01:03:33,152 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 01:03:33,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:03:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 01:03:33,213 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 01:03:33,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 01:03:33,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 01:03:43,860 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 01:03:43,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 01:03:43 BoogieIcfgContainer [2018-07-24 01:03:43,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 01:03:43,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 01:03:43,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 01:03:43,866 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 01:03:43,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 01:03:30" (1/3) ... [2018-07-24 01:03:43,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45724ace and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 01:03:43, skipping insertion in model container [2018-07-24 01:03:43,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:03:31" (2/3) ... [2018-07-24 01:03:43,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45724ace and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 01:03:43, skipping insertion in model container [2018-07-24 01:03:43,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 01:03:43" (3/3) ... [2018-07-24 01:03:43,872 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label57_false-unreach-call.c [2018-07-24 01:03:43,882 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 01:03:43,891 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 01:03:43,948 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 01:03:43,949 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 01:03:43,949 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 01:03:43,949 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 01:03:43,949 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 01:03:43,949 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 01:03:43,950 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 01:03:43,950 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 01:03:43,950 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 01:03:43,983 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states. [2018-07-24 01:03:43,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-07-24 01:03:43,990 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:03:43,991 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:03:43,992 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:03:43,997 INFO L82 PathProgramCache]: Analyzing trace with hash 670581594, now seen corresponding path program 1 times [2018-07-24 01:03:43,999 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:03:44,000 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:03:44,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:03:44,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:03:44,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:03:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:03:44,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:03:44,363 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:03:44,364 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:03:44,368 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:03:44,380 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:03:44,380 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:03:44,383 INFO L87 Difference]: Start difference. First operand 591 states. Second operand 4 states. [2018-07-24 01:03:56,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:03:56,334 INFO L93 Difference]: Finished difference Result 2126 states and 3956 transitions. [2018-07-24 01:03:56,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:03:56,336 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-07-24 01:03:56,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:03:56,370 INFO L225 Difference]: With dead ends: 2126 [2018-07-24 01:03:56,370 INFO L226 Difference]: Without dead ends: 1528 [2018-07-24 01:03:56,378 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:03:56,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2018-07-24 01:03:56,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1048. [2018-07-24 01:03:56,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1048 states. [2018-07-24 01:03:56,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1826 transitions. [2018-07-24 01:03:56,518 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1826 transitions. Word has length 18 [2018-07-24 01:03:56,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:03:56,518 INFO L471 AbstractCegarLoop]: Abstraction has 1048 states and 1826 transitions. [2018-07-24 01:03:56,519 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:03:56,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1826 transitions. [2018-07-24 01:03:56,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-07-24 01:03:56,523 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:03:56,524 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 01:03:56,524 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:03:56,526 INFO L82 PathProgramCache]: Analyzing trace with hash -659555608, now seen corresponding path program 1 times [2018-07-24 01:03:56,526 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:03:56,527 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:03:56,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:03:56,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:03:56,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:03:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:03:56,892 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:03:56,893 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:03:56,893 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:03:56,895 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:03:56,895 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:03:56,895 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:03:56,895 INFO L87 Difference]: Start difference. First operand 1048 states and 1826 transitions. Second operand 4 states. [2018-07-24 01:04:06,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:04:06,554 INFO L93 Difference]: Finished difference Result 3810 states and 6822 transitions. [2018-07-24 01:04:06,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:04:06,556 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 90 [2018-07-24 01:04:06,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:04:06,570 INFO L225 Difference]: With dead ends: 3810 [2018-07-24 01:04:06,571 INFO L226 Difference]: Without dead ends: 2764 [2018-07-24 01:04:06,576 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:04:06,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2018-07-24 01:04:06,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2764. [2018-07-24 01:04:06,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2764 states. [2018-07-24 01:04:06,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2764 states to 2764 states and 4043 transitions. [2018-07-24 01:04:06,642 INFO L78 Accepts]: Start accepts. Automaton has 2764 states and 4043 transitions. Word has length 90 [2018-07-24 01:04:06,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:04:06,643 INFO L471 AbstractCegarLoop]: Abstraction has 2764 states and 4043 transitions. [2018-07-24 01:04:06,643 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:04:06,643 INFO L276 IsEmpty]: Start isEmpty. Operand 2764 states and 4043 transitions. [2018-07-24 01:04:06,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-07-24 01:04:06,655 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:04:06,656 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:04:06,656 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:04:06,657 INFO L82 PathProgramCache]: Analyzing trace with hash 483122712, now seen corresponding path program 1 times [2018-07-24 01:04:06,658 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:04:06,658 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:04:06,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:04:06,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:04:06,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:04:06,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:04:07,264 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 31 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:04:07,265 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:04:07,265 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 01:04:07,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:04:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:04:07,402 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:04:08,207 WARN L169 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-07-24 01:04:08,420 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 11 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:04:08,456 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 01:04:08,456 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 7 [2018-07-24 01:04:08,457 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 01:04:08,457 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 01:04:08,458 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 01:04:08,458 INFO L87 Difference]: Start difference. First operand 2764 states and 4043 transitions. Second operand 8 states. [2018-07-24 01:04:08,741 WARN L169 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-07-24 01:04:37,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:04:37,703 INFO L93 Difference]: Finished difference Result 19642 states and 28635 transitions. [2018-07-24 01:04:37,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-24 01:04:37,704 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 174 [2018-07-24 01:04:37,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:04:37,764 INFO L225 Difference]: With dead ends: 19642 [2018-07-24 01:04:37,764 INFO L226 Difference]: Without dead ends: 12946 [2018-07-24 01:04:37,775 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 170 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-07-24 01:04:37,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12946 states. [2018-07-24 01:04:37,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12946 to 7826. [2018-07-24 01:04:37,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7826 states. [2018-07-24 01:04:37,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7826 states to 7826 states and 9561 transitions. [2018-07-24 01:04:37,963 INFO L78 Accepts]: Start accepts. Automaton has 7826 states and 9561 transitions. Word has length 174 [2018-07-24 01:04:37,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:04:37,964 INFO L471 AbstractCegarLoop]: Abstraction has 7826 states and 9561 transitions. [2018-07-24 01:04:37,965 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-24 01:04:37,965 INFO L276 IsEmpty]: Start isEmpty. Operand 7826 states and 9561 transitions. [2018-07-24 01:04:37,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-07-24 01:04:37,976 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:04:37,976 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:04:37,977 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:04:37,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1886732887, now seen corresponding path program 1 times [2018-07-24 01:04:37,978 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:04:37,978 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:04:37,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:04:37,980 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:04:37,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:04:38,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:04:38,242 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 238 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-07-24 01:04:38,243 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:04:38,243 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:04:38,245 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:04:38,245 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:04:38,245 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:04:38,245 INFO L87 Difference]: Start difference. First operand 7826 states and 9561 transitions. Second operand 3 states. [2018-07-24 01:04:41,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:04:41,614 INFO L93 Difference]: Finished difference Result 15216 states and 18677 transitions. [2018-07-24 01:04:41,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:04:41,624 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2018-07-24 01:04:41,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:04:41,653 INFO L225 Difference]: With dead ends: 15216 [2018-07-24 01:04:41,653 INFO L226 Difference]: Without dead ends: 7825 [2018-07-24 01:04:41,662 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:04:41,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7825 states. [2018-07-24 01:04:41,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7825 to 7399. [2018-07-24 01:04:41,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7399 states. [2018-07-24 01:04:41,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7399 states to 7399 states and 8474 transitions. [2018-07-24 01:04:41,788 INFO L78 Accepts]: Start accepts. Automaton has 7399 states and 8474 transitions. Word has length 247 [2018-07-24 01:04:41,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:04:41,789 INFO L471 AbstractCegarLoop]: Abstraction has 7399 states and 8474 transitions. [2018-07-24 01:04:41,789 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:04:41,789 INFO L276 IsEmpty]: Start isEmpty. Operand 7399 states and 8474 transitions. [2018-07-24 01:04:41,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2018-07-24 01:04:41,801 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:04:41,801 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:04:41,801 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:04:41,802 INFO L82 PathProgramCache]: Analyzing trace with hash -862684666, now seen corresponding path program 1 times [2018-07-24 01:04:41,802 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:04:41,802 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:04:41,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:04:41,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:04:41,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:04:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:04:42,162 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-07-24 01:04:42,163 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:04:42,163 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:04:42,164 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:04:42,164 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:04:42,164 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:04:42,164 INFO L87 Difference]: Start difference. First operand 7399 states and 8474 transitions. Second operand 3 states. [2018-07-24 01:04:47,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:04:47,194 INFO L93 Difference]: Finished difference Result 20767 states and 23614 transitions. [2018-07-24 01:04:47,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:04:47,195 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 436 [2018-07-24 01:04:47,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:04:47,230 INFO L225 Difference]: With dead ends: 20767 [2018-07-24 01:04:47,230 INFO L226 Difference]: Without dead ends: 11644 [2018-07-24 01:04:47,240 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:04:47,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11644 states. [2018-07-24 01:04:47,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11644 to 11641. [2018-07-24 01:04:47,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11641 states. [2018-07-24 01:04:47,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11641 states to 11641 states and 12863 transitions. [2018-07-24 01:04:47,401 INFO L78 Accepts]: Start accepts. Automaton has 11641 states and 12863 transitions. Word has length 436 [2018-07-24 01:04:47,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:04:47,402 INFO L471 AbstractCegarLoop]: Abstraction has 11641 states and 12863 transitions. [2018-07-24 01:04:47,402 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:04:47,402 INFO L276 IsEmpty]: Start isEmpty. Operand 11641 states and 12863 transitions. [2018-07-24 01:04:47,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2018-07-24 01:04:47,417 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:04:47,418 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2018-07-24 01:04:47,418 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:04:47,418 INFO L82 PathProgramCache]: Analyzing trace with hash 289460499, now seen corresponding path program 1 times [2018-07-24 01:04:47,418 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:04:47,419 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:04:47,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:04:47,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:04:47,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:04:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:04:48,388 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2018-07-24 01:04:48,388 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:04:48,388 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 01:04:48,389 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 01:04:48,390 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 01:04:48,390 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 01:04:48,390 INFO L87 Difference]: Start difference. First operand 11641 states and 12863 transitions. Second operand 5 states. [2018-07-24 01:04:56,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:04:56,182 INFO L93 Difference]: Finished difference Result 37801 states and 41940 transitions. [2018-07-24 01:04:56,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 01:04:56,182 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 490 [2018-07-24 01:04:56,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:04:56,229 INFO L225 Difference]: With dead ends: 37801 [2018-07-24 01:04:56,230 INFO L226 Difference]: Without dead ends: 25313 [2018-07-24 01:04:56,245 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 01:04:56,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25313 states. [2018-07-24 01:04:56,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25313 to 22753. [2018-07-24 01:04:56,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22753 states. [2018-07-24 01:04:56,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22753 states to 22753 states and 24860 transitions. [2018-07-24 01:04:56,569 INFO L78 Accepts]: Start accepts. Automaton has 22753 states and 24860 transitions. Word has length 490 [2018-07-24 01:04:56,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:04:56,570 INFO L471 AbstractCegarLoop]: Abstraction has 22753 states and 24860 transitions. [2018-07-24 01:04:56,570 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 01:04:56,570 INFO L276 IsEmpty]: Start isEmpty. Operand 22753 states and 24860 transitions. [2018-07-24 01:04:56,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2018-07-24 01:04:56,594 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:04:56,595 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2018-07-24 01:04:56,595 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:04:56,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1357810925, now seen corresponding path program 1 times [2018-07-24 01:04:56,595 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:04:56,595 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:04:56,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:04:56,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:04:56,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:04:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:04:58,064 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 68 proven. 508 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:04:58,064 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:04:58,064 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 01:04:58,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:04:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:04:58,258 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:05:21,417 WARN L169 SmtUtils]: Spent 20.57 s on a formula simplification. DAG size of input: 423 DAG size of output: 93 [2018-07-24 01:05:26,190 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 328 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2018-07-24 01:05:26,213 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 01:05:26,213 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2018-07-24 01:05:26,215 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 01:05:26,215 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 01:05:26,215 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=47, Unknown=1, NotChecked=0, Total=72 [2018-07-24 01:05:26,215 INFO L87 Difference]: Start difference. First operand 22753 states and 24860 transitions. Second operand 9 states. [2018-07-24 01:06:01,953 WARN L169 SmtUtils]: Spent 26.47 s on a formula simplification. DAG size of input: 96 DAG size of output: 62 Received shutdown request... [2018-07-24 01:07:52,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-24 01:07:52,256 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 01:07:52,261 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 01:07:52,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 01:07:52 BoogieIcfgContainer [2018-07-24 01:07:52,262 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 01:07:52,263 INFO L168 Benchmark]: Toolchain (without parser) took 262196.32 ms. Allocated memory was 1.5 GB in the beginning and 3.3 GB in the end (delta: 1.8 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 271.7 MB. Max. memory is 7.1 GB. [2018-07-24 01:07:52,264 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 01:07:52,264 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1760.58 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. [2018-07-24 01:07:52,265 INFO L168 Benchmark]: Boogie Procedure Inliner took 388.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-07-24 01:07:52,266 INFO L168 Benchmark]: Boogie Preprocessor took 930.11 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 971.5 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 145.3 MB. Max. memory is 7.1 GB. [2018-07-24 01:07:52,270 INFO L168 Benchmark]: RCFGBuilder took 10709.71 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 503.3 MB). Peak memory consumption was 503.3 MB. Max. memory is 7.1 GB. [2018-07-24 01:07:52,271 INFO L168 Benchmark]: TraceAbstraction took 248399.08 ms. Allocated memory was 2.5 GB in the beginning and 3.3 GB in the end (delta: 779.6 MB). Free memory was 1.9 GB in the beginning and 2.9 GB in the end (delta: -1.0 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 01:07:52,280 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1760.58 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 388.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 930.11 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 971.5 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 145.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10709.71 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 503.3 MB). Peak memory consumption was 503.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 248399.08 ms. Allocated memory was 2.5 GB in the beginning and 3.3 GB in the end (delta: 779.6 MB). Free memory was 1.9 GB in the beginning and 2.9 GB in the end (delta: -1.0 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 59). Cancelled while BasicCegarLoop was constructing difference of abstraction (22753states) and interpolant automaton (currently 12 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (10253 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 591 locations, 1 error locations. TIMEOUT Result, 248.3s OverallTime, 7 OverallIterations, 5 TraceHistogramMax, 213.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2545 SDtfs, 12947 SDslu, 1108 SDs, 0 SdLazy, 25134 SolverSat, 6382 SolverUnsat, 44 SolverUnknown, 0 SolverNotchecked, 173.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 704 GetRequests, 671 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 56.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22753occurred in iteration=6, 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: 0.9s AutomataMinimizationTime, 6 MinimizatonAttempts, 8589 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 31.7s InterpolantComputationTime, 2611 NumberOfCodeBlocks, 2611 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2602 ConstructedInterpolants, 290 QuantifiedInterpolants, 30024372 SizeOfPredicates, 5 NumberOfNonLiveVariables, 893 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 1821/2491 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label57_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_01-07-52-300.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label57_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_01-07-52-300.csv Completed graceful shutdown