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/Problem13_label10_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-22 12:21:13,736 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-22 12:21:13,738 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-22 12:21:13,753 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-22 12:21:13,753 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-22 12:21:13,754 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-22 12:21:13,756 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-22 12:21:13,759 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-22 12:21:13,760 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-22 12:21:13,762 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-22 12:21:13,763 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-22 12:21:13,763 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-22 12:21:13,764 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-22 12:21:13,767 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-22 12:21:13,768 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-22 12:21:13,769 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-22 12:21:13,770 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-22 12:21:13,780 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-22 12:21:13,782 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-22 12:21:13,783 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-22 12:21:13,784 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-22 12:21:13,785 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-22 12:21:13,789 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-22 12:21:13,790 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-22 12:21:13,790 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-22 12:21:13,793 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-22 12:21:13,794 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-22 12:21:13,794 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-22 12:21:13,795 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-22 12:21:13,800 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-22 12:21:13,801 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-22 12:21:13,801 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-22 12:21:13,802 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-22 12:21:13,802 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-22 12:21:13,803 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-22 12:21:13,803 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-22 12:21:13,804 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 12:21:13,828 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-22 12:21:13,828 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-22 12:21:13,829 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-22 12:21:13,829 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-22 12:21:13,830 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-22 12:21:13,830 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-22 12:21:13,830 INFO L133 SettingsManager]: * Use SBE=true [2018-07-22 12:21:13,830 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-22 12:21:13,830 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-22 12:21:13,831 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-22 12:21:13,831 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-22 12:21:13,831 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-22 12:21:13,831 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-22 12:21:13,831 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-22 12:21:13,832 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-22 12:21:13,832 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-22 12:21:13,833 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-22 12:21:13,833 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-22 12:21:13,833 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-22 12:21:13,833 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-22 12:21:13,833 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-22 12:21:13,834 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-22 12:21:13,834 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-22 12:21:13,834 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-22 12:21:13,834 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-22 12:21:13,834 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-22 12:21:13,834 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-22 12:21:13,835 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-22 12:21:13,835 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-22 12:21:13,887 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-22 12:21:13,903 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-22 12:21:13,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-22 12:21:13,912 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-22 12:21:13,913 INFO L276 PluginConnector]: CDTParser initialized [2018-07-22 12:21:13,914 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label10_true-unreach-call.c [2018-07-22 12:21:14,291 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/a7070b4e5/ef9310d6f05c49978972de1528483d55/FLAGf15c9c371 [2018-07-22 12:21:14,845 INFO L276 CDTParser]: Found 1 translation units. [2018-07-22 12:21:14,845 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label10_true-unreach-call.c [2018-07-22 12:21:14,916 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/a7070b4e5/ef9310d6f05c49978972de1528483d55/FLAGf15c9c371 [2018-07-22 12:21:14,940 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/a7070b4e5/ef9310d6f05c49978972de1528483d55 [2018-07-22 12:21:14,952 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-22 12:21:14,960 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-22 12:21:14,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-22 12:21:14,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-22 12:21:14,971 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-22 12:21:14,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:21:14" (1/1) ... [2018-07-22 12:21:14,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c5fd596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:21:14, skipping insertion in model container [2018-07-22 12:21:14,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:21:14" (1/1) ... [2018-07-22 12:21:15,412 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-22 12:21:16,767 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 12:21:16,787 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-22 12:21:17,737 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-22 12:21:18,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:21:18 WrapperNode [2018-07-22 12:21:18,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-22 12:21:18,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-22 12:21:18,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-22 12:21:18,026 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-22 12:21:18,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:21:18" (1/1) ... [2018-07-22 12:21:18,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:21:18" (1/1) ... [2018-07-22 12:21:18,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-22 12:21:18,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-22 12:21:18,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-22 12:21:18,899 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-22 12:21:18,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:21:18" (1/1) ... [2018-07-22 12:21:18,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:21:18" (1/1) ... [2018-07-22 12:21:18,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:21:18" (1/1) ... [2018-07-22 12:21:18,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:21:18" (1/1) ... [2018-07-22 12:21:19,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:21:18" (1/1) ... [2018-07-22 12:21:20,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:21:18" (1/1) ... [2018-07-22 12:21:20,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:21:18" (1/1) ... [2018-07-22 12:21:20,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-22 12:21:20,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-22 12:21:20,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-22 12:21:20,755 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-22 12:21:20,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:21:18" (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 12:21:20,826 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-22 12:21:20,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-22 12:21:20,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-22 12:21:32,520 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-22 12:21:32,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:21:32 BoogieIcfgContainer [2018-07-22 12:21:32,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-22 12:21:32,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-22 12:21:32,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-22 12:21:32,526 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-22 12:21:32,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 12:21:14" (1/3) ... [2018-07-22 12:21:32,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd6c54b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:21:32, skipping insertion in model container [2018-07-22 12:21:32,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:21:18" (2/3) ... [2018-07-22 12:21:32,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bd6c54b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:21:32, skipping insertion in model container [2018-07-22 12:21:32,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:21:32" (3/3) ... [2018-07-22 12:21:32,530 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label10_true-unreach-call.c [2018-07-22 12:21:32,540 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-22 12:21:32,553 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-22 12:21:32,635 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-22 12:21:32,636 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-22 12:21:32,636 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-22 12:21:32,636 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-22 12:21:32,637 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-22 12:21:32,637 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-22 12:21:32,637 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-22 12:21:32,637 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-22 12:21:32,637 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-22 12:21:32,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-07-22 12:21:32,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-07-22 12:21:32,686 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:21:32,687 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 12:21:32,688 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:21:32,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1660793902, now seen corresponding path program 1 times [2018-07-22 12:21:32,695 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:21:32,696 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:21:32,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:21:32,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:21:32,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:21:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:21:33,187 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 12:21:33,190 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:21:33,190 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 12:21:33,194 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 12:21:33,209 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 12:21:33,209 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:21:33,212 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-07-22 12:21:44,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:21:44,949 INFO L93 Difference]: Finished difference Result 4033 states and 7562 transitions. [2018-07-22 12:21:44,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 12:21:44,990 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2018-07-22 12:21:44,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:21:45,123 INFO L225 Difference]: With dead ends: 4033 [2018-07-22 12:21:45,124 INFO L226 Difference]: Without dead ends: 2927 [2018-07-22 12:21:45,138 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 12:21:45,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2018-07-22 12:21:45,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 2797. [2018-07-22 12:21:45,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2797 states. [2018-07-22 12:21:45,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 4999 transitions. [2018-07-22 12:21:45,357 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 4999 transitions. Word has length 48 [2018-07-22 12:21:45,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:21:45,359 INFO L471 AbstractCegarLoop]: Abstraction has 2797 states and 4999 transitions. [2018-07-22 12:21:45,359 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 12:21:45,359 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 4999 transitions. [2018-07-22 12:21:45,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-07-22 12:21:45,365 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:21:45,365 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-22 12:21:45,366 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:21:45,366 INFO L82 PathProgramCache]: Analyzing trace with hash 591071892, now seen corresponding path program 1 times [2018-07-22 12:21:45,366 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:21:45,366 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:21:45,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:21:45,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:21:45,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:21:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:21:46,232 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 12:21:46,232 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:21:46,233 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 12:21:46,235 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 12:21:46,236 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 12:21:46,236 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-22 12:21:46,236 INFO L87 Difference]: Start difference. First operand 2797 states and 4999 transitions. Second operand 5 states. [2018-07-22 12:21:46,499 WARN L169 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-07-22 12:22:00,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:22:00,350 INFO L93 Difference]: Finished difference Result 10338 states and 18659 transitions. [2018-07-22 12:22:00,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 12:22:00,350 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 115 [2018-07-22 12:22:00,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:22:00,389 INFO L225 Difference]: With dead ends: 10338 [2018-07-22 12:22:00,389 INFO L226 Difference]: Without dead ends: 7543 [2018-07-22 12:22:00,394 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-22 12:22:00,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7543 states. [2018-07-22 12:22:00,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7543 to 7542. [2018-07-22 12:22:00,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7542 states. [2018-07-22 12:22:00,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7542 states to 7542 states and 11505 transitions. [2018-07-22 12:22:00,608 INFO L78 Accepts]: Start accepts. Automaton has 7542 states and 11505 transitions. Word has length 115 [2018-07-22 12:22:00,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:22:00,609 INFO L471 AbstractCegarLoop]: Abstraction has 7542 states and 11505 transitions. [2018-07-22 12:22:00,609 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 12:22:00,609 INFO L276 IsEmpty]: Start isEmpty. Operand 7542 states and 11505 transitions. [2018-07-22 12:22:00,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-07-22 12:22:00,629 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:22:00,630 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 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 12:22:00,630 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:22:00,630 INFO L82 PathProgramCache]: Analyzing trace with hash 270757968, now seen corresponding path program 1 times [2018-07-22 12:22:00,630 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:22:00,631 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:22:00,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:22:00,632 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:22:00,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:22:00,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:22:01,125 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 12:22:01,126 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:22:01,126 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 12:22:01,126 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 12:22:01,127 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 12:22:01,127 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:22:01,127 INFO L87 Difference]: Start difference. First operand 7542 states and 11505 transitions. Second operand 4 states. [2018-07-22 12:22:08,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:22:08,970 INFO L93 Difference]: Finished difference Result 23793 states and 38051 transitions. [2018-07-22 12:22:08,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 12:22:08,971 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 224 [2018-07-22 12:22:08,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:22:09,030 INFO L225 Difference]: With dead ends: 23793 [2018-07-22 12:22:09,030 INFO L226 Difference]: Without dead ends: 17041 [2018-07-22 12:22:09,043 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:22:09,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17041 states. [2018-07-22 12:22:09,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17041 to 17010. [2018-07-22 12:22:09,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17010 states. [2018-07-22 12:22:09,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17010 states to 17010 states and 24422 transitions. [2018-07-22 12:22:09,521 INFO L78 Accepts]: Start accepts. Automaton has 17010 states and 24422 transitions. Word has length 224 [2018-07-22 12:22:09,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:22:09,522 INFO L471 AbstractCegarLoop]: Abstraction has 17010 states and 24422 transitions. [2018-07-22 12:22:09,522 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 12:22:09,522 INFO L276 IsEmpty]: Start isEmpty. Operand 17010 states and 24422 transitions. [2018-07-22 12:22:09,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2018-07-22 12:22:09,527 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:22:09,528 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 12:22:09,528 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:22:09,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1176491286, now seen corresponding path program 1 times [2018-07-22 12:22:09,529 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:22:09,529 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:22:09,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:22:09,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:22:09,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:22:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:22:10,065 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-22 12:22:10,066 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:22:10,066 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 12:22:10,066 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 12:22:10,067 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 12:22:10,067 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 12:22:10,067 INFO L87 Difference]: Start difference. First operand 17010 states and 24422 transitions. Second operand 5 states. [2018-07-22 12:22:32,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:22:32,315 INFO L93 Difference]: Finished difference Result 51655 states and 76271 transitions. [2018-07-22 12:22:32,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 12:22:32,315 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 231 [2018-07-22 12:22:32,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:22:32,388 INFO L225 Difference]: With dead ends: 51655 [2018-07-22 12:22:32,388 INFO L226 Difference]: Without dead ends: 35435 [2018-07-22 12:22:32,404 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 12:22:32,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35435 states. [2018-07-22 12:22:32,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35435 to 35252. [2018-07-22 12:22:32,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35252 states. [2018-07-22 12:22:32,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35252 states to 35252 states and 49535 transitions. [2018-07-22 12:22:32,935 INFO L78 Accepts]: Start accepts. Automaton has 35252 states and 49535 transitions. Word has length 231 [2018-07-22 12:22:32,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:22:32,937 INFO L471 AbstractCegarLoop]: Abstraction has 35252 states and 49535 transitions. [2018-07-22 12:22:32,937 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 12:22:32,937 INFO L276 IsEmpty]: Start isEmpty. Operand 35252 states and 49535 transitions. [2018-07-22 12:22:32,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2018-07-22 12:22:32,946 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:22:32,947 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 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 12:22:32,947 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:22:32,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1671468001, now seen corresponding path program 1 times [2018-07-22 12:22:32,947 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:22:32,947 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:22:32,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:22:32,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:22:32,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:22:33,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:22:33,477 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 91 proven. 65 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-07-22 12:22:33,477 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 12:22:33,478 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 12:22:33,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:22:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:22:33,637 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 12:22:33,857 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2018-07-22 12:22:33,891 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 12:22:33,892 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-07-22 12:22:33,893 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 12:22:33,893 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 12:22:33,893 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 12:22:33,893 INFO L87 Difference]: Start difference. First operand 35252 states and 49535 transitions. Second operand 5 states. [2018-07-22 12:22:42,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:22:42,380 INFO L93 Difference]: Finished difference Result 108319 states and 151827 transitions. [2018-07-22 12:22:42,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 12:22:42,380 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 280 [2018-07-22 12:22:42,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:22:42,512 INFO L225 Difference]: With dead ends: 108319 [2018-07-22 12:22:42,512 INFO L226 Difference]: Without dead ends: 73857 [2018-07-22 12:22:42,547 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 279 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 12:22:42,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73857 states. [2018-07-22 12:22:43,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73857 to 72273. [2018-07-22 12:22:43,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72273 states. [2018-07-22 12:22:43,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72273 states to 72273 states and 91838 transitions. [2018-07-22 12:22:43,996 INFO L78 Accepts]: Start accepts. Automaton has 72273 states and 91838 transitions. Word has length 280 [2018-07-22 12:22:43,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:22:43,998 INFO L471 AbstractCegarLoop]: Abstraction has 72273 states and 91838 transitions. [2018-07-22 12:22:43,998 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-22 12:22:43,998 INFO L276 IsEmpty]: Start isEmpty. Operand 72273 states and 91838 transitions. [2018-07-22 12:22:44,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2018-07-22 12:22:44,021 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:22:44,022 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:22:44,022 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:22:44,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1208286326, now seen corresponding path program 1 times [2018-07-22 12:22:44,022 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:22:44,022 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:22:44,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:22:44,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:22:44,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:22:44,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:22:44,304 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-07-22 12:22:44,304 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:22:44,305 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-22 12:22:44,305 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-22 12:22:44,306 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-22 12:22:44,306 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 12:22:44,306 INFO L87 Difference]: Start difference. First operand 72273 states and 91838 transitions. Second operand 3 states. [2018-07-22 12:22:49,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:22:49,672 INFO L93 Difference]: Finished difference Result 145311 states and 184755 transitions. [2018-07-22 12:22:49,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-22 12:22:49,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 328 [2018-07-22 12:22:49,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:22:49,864 INFO L225 Difference]: With dead ends: 145311 [2018-07-22 12:22:49,864 INFO L226 Difference]: Without dead ends: 73828 [2018-07-22 12:22:49,907 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-22 12:22:49,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73828 states. [2018-07-22 12:22:50,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73828 to 72246. [2018-07-22 12:22:50,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72246 states. [2018-07-22 12:22:54,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72246 states to 72246 states and 85260 transitions. [2018-07-22 12:22:54,239 INFO L78 Accepts]: Start accepts. Automaton has 72246 states and 85260 transitions. Word has length 328 [2018-07-22 12:22:54,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:22:54,240 INFO L471 AbstractCegarLoop]: Abstraction has 72246 states and 85260 transitions. [2018-07-22 12:22:54,240 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-22 12:22:54,240 INFO L276 IsEmpty]: Start isEmpty. Operand 72246 states and 85260 transitions. [2018-07-22 12:22:54,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2018-07-22 12:22:54,258 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:22:54,258 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:22:54,258 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:22:54,259 INFO L82 PathProgramCache]: Analyzing trace with hash -190832192, now seen corresponding path program 1 times [2018-07-22 12:22:54,259 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:22:54,259 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:22:54,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:22:54,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:22:54,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:22:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:22:54,675 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2018-07-22 12:22:54,676 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:22:54,676 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 12:22:54,676 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 12:22:54,677 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 12:22:54,678 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:22:54,678 INFO L87 Difference]: Start difference. First operand 72246 states and 85260 transitions. Second operand 4 states. [2018-07-22 12:23:02,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:23:02,096 INFO L93 Difference]: Finished difference Result 184703 states and 219794 transitions. [2018-07-22 12:23:02,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 12:23:02,096 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 347 [2018-07-22 12:23:02,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:23:02,226 INFO L225 Difference]: With dead ends: 184703 [2018-07-22 12:23:02,227 INFO L226 Difference]: Without dead ends: 113247 [2018-07-22 12:23:02,277 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:23:02,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113247 states. [2018-07-22 12:23:03,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113247 to 110064. [2018-07-22 12:23:03,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110064 states. [2018-07-22 12:23:03,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110064 states to 110064 states and 126847 transitions. [2018-07-22 12:23:03,389 INFO L78 Accepts]: Start accepts. Automaton has 110064 states and 126847 transitions. Word has length 347 [2018-07-22 12:23:03,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:23:03,390 INFO L471 AbstractCegarLoop]: Abstraction has 110064 states and 126847 transitions. [2018-07-22 12:23:03,390 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 12:23:03,390 INFO L276 IsEmpty]: Start isEmpty. Operand 110064 states and 126847 transitions. [2018-07-22 12:23:03,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2018-07-22 12:23:03,413 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:23:03,413 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:23:03,413 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:23:03,413 INFO L82 PathProgramCache]: Analyzing trace with hash -306577764, now seen corresponding path program 1 times [2018-07-22 12:23:03,414 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:23:03,414 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:23:03,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:23:03,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:23:03,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:23:03,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:23:04,440 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 301 proven. 84 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-07-22 12:23:04,440 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 12:23:04,440 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 12:23:04,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:23:04,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:23:04,586 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 12:23:04,943 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 385 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-07-22 12:23:04,963 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 12:23:04,964 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-07-22 12:23:04,964 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-22 12:23:04,965 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-22 12:23:04,965 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-07-22 12:23:04,965 INFO L87 Difference]: Start difference. First operand 110064 states and 126847 transitions. Second operand 7 states. [2018-07-22 12:23:31,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:23:31,035 INFO L93 Difference]: Finished difference Result 455994 states and 523642 transitions. [2018-07-22 12:23:31,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-22 12:23:31,035 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 437 [2018-07-22 12:23:31,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:23:31,356 INFO L225 Difference]: With dead ends: 455994 [2018-07-22 12:23:31,356 INFO L226 Difference]: Without dead ends: 332500 [2018-07-22 12:23:31,420 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2018-07-22 12:23:31,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332500 states. [2018-07-22 12:23:34,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332500 to 318245. [2018-07-22 12:23:34,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318245 states. [2018-07-22 12:23:34,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318245 states to 318245 states and 347753 transitions. [2018-07-22 12:23:34,740 INFO L78 Accepts]: Start accepts. Automaton has 318245 states and 347753 transitions. Word has length 437 [2018-07-22 12:23:34,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:23:34,740 INFO L471 AbstractCegarLoop]: Abstraction has 318245 states and 347753 transitions. [2018-07-22 12:23:34,740 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-22 12:23:34,740 INFO L276 IsEmpty]: Start isEmpty. Operand 318245 states and 347753 transitions. [2018-07-22 12:23:34,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2018-07-22 12:23:34,762 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:23:34,763 INFO L358 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-22 12:23:34,763 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:23:34,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1546897837, now seen corresponding path program 1 times [2018-07-22 12:23:34,763 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:23:34,763 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:23:34,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:23:34,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:23:34,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:23:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:23:36,389 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 604 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2018-07-22 12:23:36,390 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:23:36,390 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-22 12:23:36,390 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 12:23:36,390 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 12:23:36,391 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:23:36,391 INFO L87 Difference]: Start difference. First operand 318245 states and 347753 transitions. Second operand 4 states. [2018-07-22 12:23:49,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:23:49,575 INFO L93 Difference]: Finished difference Result 634959 states and 693956 transitions. [2018-07-22 12:23:49,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 12:23:49,576 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 495 [2018-07-22 12:23:49,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:23:49,896 INFO L225 Difference]: With dead ends: 634959 [2018-07-22 12:23:49,896 INFO L226 Difference]: Without dead ends: 311180 [2018-07-22 12:23:49,989 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:23:50,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311180 states. [2018-07-22 12:23:54,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311180 to 310339. [2018-07-22 12:23:54,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310339 states. [2018-07-22 12:23:54,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310339 states to 310339 states and 330976 transitions. [2018-07-22 12:23:54,375 INFO L78 Accepts]: Start accepts. Automaton has 310339 states and 330976 transitions. Word has length 495 [2018-07-22 12:23:54,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:23:54,376 INFO L471 AbstractCegarLoop]: Abstraction has 310339 states and 330976 transitions. [2018-07-22 12:23:54,376 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 12:23:54,376 INFO L276 IsEmpty]: Start isEmpty. Operand 310339 states and 330976 transitions. [2018-07-22 12:23:54,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2018-07-22 12:23:54,407 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:23:54,407 INFO L358 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2018-07-22 12:23:54,407 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:23:54,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1212805590, now seen corresponding path program 1 times [2018-07-22 12:23:54,408 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:23:54,408 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:23:54,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:23:54,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:23:54,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:23:54,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:23:54,802 WARN L169 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-07-22 12:23:55,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 590 proven. 4 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2018-07-22 12:23:55,928 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 12:23:55,928 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-22 12:23:55,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:23:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:23:56,104 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 12:23:56,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 661 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2018-07-22 12:23:56,314 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 12:23:56,314 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-07-22 12:23:56,315 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-22 12:23:56,315 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-22 12:23:56,316 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:23:56,316 INFO L87 Difference]: Start difference. First operand 310339 states and 330976 transitions. Second operand 4 states. [2018-07-22 12:24:10,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:24:10,744 INFO L93 Difference]: Finished difference Result 764174 states and 814204 transitions. [2018-07-22 12:24:10,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-22 12:24:10,744 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 592 [2018-07-22 12:24:10,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:24:11,211 INFO L225 Difference]: With dead ends: 764174 [2018-07-22 12:24:11,211 INFO L226 Difference]: Without dead ends: 402492 [2018-07-22 12:24:11,337 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 592 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-22 12:24:11,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402492 states. [2018-07-22 12:24:15,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402492 to 296837. [2018-07-22 12:24:15,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296837 states. [2018-07-22 12:24:15,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296837 states to 296837 states and 313738 transitions. [2018-07-22 12:24:15,479 INFO L78 Accepts]: Start accepts. Automaton has 296837 states and 313738 transitions. Word has length 592 [2018-07-22 12:24:15,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:24:15,480 INFO L471 AbstractCegarLoop]: Abstraction has 296837 states and 313738 transitions. [2018-07-22 12:24:15,480 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-22 12:24:15,480 INFO L276 IsEmpty]: Start isEmpty. Operand 296837 states and 313738 transitions. [2018-07-22 12:24:15,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2018-07-22 12:24:15,495 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:24:15,495 INFO L358 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:24:15,496 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:24:15,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1019189043, now seen corresponding path program 1 times [2018-07-22 12:24:15,496 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:24:15,496 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:24:15,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:24:15,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:24:15,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:24:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:24:20,228 WARN L169 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-07-22 12:24:20,622 WARN L169 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 33 [2018-07-22 12:24:21,295 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 380 proven. 125 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-07-22 12:24:21,295 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-22 12:24:21,295 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 12:24:21,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:24:21,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:24:21,441 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-22 12:24:21,608 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2018-07-22 12:24:21,628 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-22 12:24:21,629 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2018-07-22 12:24:21,630 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-22 12:24:21,630 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-22 12:24:21,630 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-22 12:24:21,630 INFO L87 Difference]: Start difference. First operand 296837 states and 313738 transitions. Second operand 8 states. [2018-07-22 12:24:34,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-22 12:24:34,193 INFO L93 Difference]: Finished difference Result 627560 states and 662126 transitions. [2018-07-22 12:24:34,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-22 12:24:34,193 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 601 [2018-07-22 12:24:34,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-22 12:24:34,484 INFO L225 Difference]: With dead ends: 627560 [2018-07-22 12:24:34,484 INFO L226 Difference]: Without dead ends: 314937 [2018-07-22 12:24:34,548 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 601 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-07-22 12:24:34,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314937 states. [2018-07-22 12:24:37,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314937 to 280247. [2018-07-22 12:24:37,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280247 states. [2018-07-22 12:24:39,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280247 states to 280247 states and 291419 transitions. [2018-07-22 12:24:39,121 INFO L78 Accepts]: Start accepts. Automaton has 280247 states and 291419 transitions. Word has length 601 [2018-07-22 12:24:39,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-22 12:24:39,122 INFO L471 AbstractCegarLoop]: Abstraction has 280247 states and 291419 transitions. [2018-07-22 12:24:39,122 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-22 12:24:39,122 INFO L276 IsEmpty]: Start isEmpty. Operand 280247 states and 291419 transitions. [2018-07-22 12:24:39,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 758 [2018-07-22 12:24:39,145 INFO L350 BasicCegarLoop]: Found error trace [2018-07-22 12:24:39,146 INFO L358 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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 12:24:39,146 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-22 12:24:39,146 INFO L82 PathProgramCache]: Analyzing trace with hash 2077796983, now seen corresponding path program 1 times [2018-07-22 12:24:39,146 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-22 12:24:39,146 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-22 12:24:39,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:24:39,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-22 12:24:39,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-22 12:24:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-22 12:24:44,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1692 backedges. 1196 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2018-07-22 12:24:44,210 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-22 12:24:44,210 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-22 12:24:44,211 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-22 12:24:44,211 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-22 12:24:44,211 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-22 12:24:44,211 INFO L87 Difference]: Start difference. First operand 280247 states and 291419 transitions. Second operand 5 states. Received shutdown request... [2018-07-22 12:24:45,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-22 12:24:45,692 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-22 12:24:45,698 WARN L202 ceAbstractionStarter]: Timeout [2018-07-22 12:24:45,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 12:24:45 BoogieIcfgContainer [2018-07-22 12:24:45,698 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-22 12:24:45,699 INFO L168 Benchmark]: Toolchain (without parser) took 210745.98 ms. Allocated memory was 309.3 MB in the beginning and 3.3 GB in the end (delta: 3.0 GB). Free memory was 238.8 MB in the beginning and 2.0 GB in the end (delta: -1.7 GB). Peak memory consumption was 1.2 GB. Max. memory is 5.3 GB. [2018-07-22 12:24:45,699 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-22 12:24:45,699 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3060.85 ms. Allocated memory was 309.3 MB in the beginning and 376.4 MB in the end (delta: 67.1 MB). Free memory was 237.8 MB in the beginning and 186.8 MB in the end (delta: 51.0 MB). Peak memory consumption was 118.1 MB. Max. memory is 5.3 GB. [2018-07-22 12:24:45,700 INFO L168 Benchmark]: Boogie Procedure Inliner took 872.92 ms. Allocated memory was 376.4 MB in the beginning and 393.2 MB in the end (delta: 16.8 MB). Free memory was 186.8 MB in the beginning and 181.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 89.8 MB. Max. memory is 5.3 GB. [2018-07-22 12:24:45,701 INFO L168 Benchmark]: Boogie Preprocessor took 1855.68 ms. Allocated memory was 393.2 MB in the beginning and 728.8 MB in the end (delta: 335.5 MB). Free memory was 181.8 MB in the beginning and 545.9 MB in the end (delta: -364.1 MB). Peak memory consumption was 120.7 MB. Max. memory is 5.3 GB. [2018-07-22 12:24:45,701 INFO L168 Benchmark]: RCFGBuilder took 11766.23 ms. Allocated memory was 728.8 MB in the beginning and 955.3 MB in the end (delta: 226.5 MB). Free memory was 545.9 MB in the beginning and 521.8 MB in the end (delta: 24.0 MB). Peak memory consumption was 296.2 MB. Max. memory is 5.3 GB. [2018-07-22 12:24:45,702 INFO L168 Benchmark]: TraceAbstraction took 193175.84 ms. Allocated memory was 955.3 MB in the beginning and 3.3 GB in the end (delta: 2.3 GB). Free memory was 521.8 MB in the beginning and 2.0 GB in the end (delta: -1.4 GB). Peak memory consumption was 869.2 MB. Max. memory is 5.3 GB. [2018-07-22 12:24:45,706 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 3060.85 ms. Allocated memory was 309.3 MB in the beginning and 376.4 MB in the end (delta: 67.1 MB). Free memory was 237.8 MB in the beginning and 186.8 MB in the end (delta: 51.0 MB). Peak memory consumption was 118.1 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 872.92 ms. Allocated memory was 376.4 MB in the beginning and 393.2 MB in the end (delta: 16.8 MB). Free memory was 186.8 MB in the beginning and 181.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 89.8 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 1855.68 ms. Allocated memory was 393.2 MB in the beginning and 728.8 MB in the end (delta: 335.5 MB). Free memory was 181.8 MB in the beginning and 545.9 MB in the end (delta: -364.1 MB). Peak memory consumption was 120.7 MB. Max. memory is 5.3 GB. * RCFGBuilder took 11766.23 ms. Allocated memory was 728.8 MB in the beginning and 955.3 MB in the end (delta: 226.5 MB). Free memory was 545.9 MB in the beginning and 521.8 MB in the end (delta: 24.0 MB). Peak memory consumption was 296.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 193175.84 ms. Allocated memory was 955.3 MB in the beginning and 3.3 GB in the end (delta: 2.3 GB). Free memory was 521.8 MB in the beginning and 2.0 GB in the end (delta: -1.4 GB). Peak memory consumption was 869.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 153]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 153). Cancelled while BasicCegarLoop was constructing difference of abstraction (280247states) and interpolant automaton (currently 5 states, 5 states before enhancement), while ReachableStatesComputation was computing reachable states (2995 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 193.0s OverallTime, 12 OverallIterations, 7 TraceHistogramMax, 147.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8153 SDtfs, 42589 SDslu, 4160 SDs, 0 SdLazy, 72580 SolverSat, 18826 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 115.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1972 GetRequests, 1920 SyntacticMatches, 8 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=318245occurred in iteration=8, 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: 24.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 162135 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 5.2s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 6365 NumberOfCodeBlocks, 6365 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 6349 ConstructedInterpolants, 0 QuantifiedInterpolants, 9487017 SizeOfPredicates, 4 NumberOfNonLiveVariables, 2445 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 7849/8127 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/Problem13_label10_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-22_12-24-45-720.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem13_label10_true-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-22_12-24-45-720.csv Completed graceful shutdown