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/Problem12_label30_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 00:32:22,004 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 00:32:22,006 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 00:32:22,018 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 00:32:22,019 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 00:32:22,020 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 00:32:22,021 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 00:32:22,024 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 00:32:22,026 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 00:32:22,027 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 00:32:22,028 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 00:32:22,028 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 00:32:22,029 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 00:32:22,030 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 00:32:22,033 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 00:32:22,034 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 00:32:22,035 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 00:32:22,040 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 00:32:22,042 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 00:32:22,045 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 00:32:22,046 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 00:32:22,048 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 00:32:22,051 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 00:32:22,054 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 00:32:22,054 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 00:32:22,055 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 00:32:22,056 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 00:32:22,056 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 00:32:22,057 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 00:32:22,060 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 00:32:22,060 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 00:32:22,061 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 00:32:22,062 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 00:32:22,062 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 00:32:22,063 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 00:32:22,064 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 00:32:22,065 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 00:32:22,094 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 00:32:22,095 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 00:32:22,095 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 00:32:22,096 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 00:32:22,097 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 00:32:22,097 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 00:32:22,097 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 00:32:22,097 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 00:32:22,098 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 00:32:22,098 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 00:32:22,098 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 00:32:22,099 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 00:32:22,099 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 00:32:22,100 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 00:32:22,100 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 00:32:22,100 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 00:32:22,100 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 00:32:22,100 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 00:32:22,101 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 00:32:22,101 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 00:32:22,101 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 00:32:22,101 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 00:32:22,102 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 00:32:22,103 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 00:32:22,103 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 00:32:22,103 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 00:32:22,103 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 00:32:22,103 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 00:32:22,152 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 00:32:22,169 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 00:32:22,175 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 00:32:22,177 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 00:32:22,177 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 00:32:22,178 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label30_false-unreach-call.c [2018-07-24 00:32:22,550 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4823d3a2/15ac9d9b0e5543e4a12b93a1c132dd4f/FLAG7b5e200cd [2018-07-24 00:32:22,983 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 00:32:22,984 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label30_false-unreach-call.c [2018-07-24 00:32:23,013 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4823d3a2/15ac9d9b0e5543e4a12b93a1c132dd4f/FLAG7b5e200cd [2018-07-24 00:32:23,028 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4823d3a2/15ac9d9b0e5543e4a12b93a1c132dd4f [2018-07-24 00:32:23,040 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 00:32:23,042 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 00:32:23,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 00:32:23,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 00:32:23,050 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 00:32:23,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:32:23" (1/1) ... [2018-07-24 00:32:23,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47dbc58b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:32:23, skipping insertion in model container [2018-07-24 00:32:23,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:32:23" (1/1) ... [2018-07-24 00:32:23,392 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 00:32:24,520 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 00:32:24,539 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 00:32:25,165 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 00:32:25,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:32:25 WrapperNode [2018-07-24 00:32:25,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 00:32:25,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 00:32:25,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 00:32:25,392 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 00:32:25,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:32:25" (1/1) ... [2018-07-24 00:32:25,499 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:32:25" (1/1) ... [2018-07-24 00:32:25,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 00:32:25,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 00:32:25,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 00:32:25,825 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 00:32:26,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:32:25" (1/1) ... [2018-07-24 00:32:26,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:32:25" (1/1) ... [2018-07-24 00:32:26,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:32:25" (1/1) ... [2018-07-24 00:32:26,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:32:25" (1/1) ... [2018-07-24 00:32:26,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:32:25" (1/1) ... [2018-07-24 00:32:26,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:32:25" (1/1) ... [2018-07-24 00:32:26,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:32:25" (1/1) ... [2018-07-24 00:32:26,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 00:32:26,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 00:32:26,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 00:32:26,931 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 00:32:26,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:32:25" (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 00:32:27,000 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 00:32:27,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 00:32:27,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 00:32:36,974 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 00:32:36,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:32:36 BoogieIcfgContainer [2018-07-24 00:32:36,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 00:32:36,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 00:32:36,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 00:32:36,980 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 00:32:36,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 12:32:23" (1/3) ... [2018-07-24 00:32:36,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55a3ac6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:32:36, skipping insertion in model container [2018-07-24 00:32:36,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:32:25" (2/3) ... [2018-07-24 00:32:36,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55a3ac6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:32:36, skipping insertion in model container [2018-07-24 00:32:36,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:32:36" (3/3) ... [2018-07-24 00:32:36,984 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label30_false-unreach-call.c [2018-07-24 00:32:36,994 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 00:32:37,003 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 00:32:37,063 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 00:32:37,064 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 00:32:37,064 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 00:32:37,065 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 00:32:37,065 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 00:32:37,065 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 00:32:37,065 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 00:32:37,065 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 00:32:37,065 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 00:32:37,098 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states. [2018-07-24 00:32:37,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-07-24 00:32:37,109 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:32:37,111 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:32:37,111 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:32:37,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1580163962, now seen corresponding path program 1 times [2018-07-24 00:32:37,119 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:32:37,120 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:32:37,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:32:37,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:32:37,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:32:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:32:37,543 WARN L169 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-07-24 00:32:37,550 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 00:32:37,553 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:32:37,553 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:32:37,558 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:32:37,573 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:32:37,574 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:32:37,577 INFO L87 Difference]: Start difference. First operand 819 states. Second operand 4 states. [2018-07-24 00:32:49,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:32:49,396 INFO L93 Difference]: Finished difference Result 3162 states and 6150 transitions. [2018-07-24 00:32:49,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:32:49,398 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2018-07-24 00:32:49,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:32:49,435 INFO L225 Difference]: With dead ends: 3162 [2018-07-24 00:32:49,435 INFO L226 Difference]: Without dead ends: 2336 [2018-07-24 00:32:49,444 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 00:32:49,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2018-07-24 00:32:49,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2336. [2018-07-24 00:32:49,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2336 states. [2018-07-24 00:32:49,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 3769 transitions. [2018-07-24 00:32:49,598 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 3769 transitions. Word has length 26 [2018-07-24 00:32:49,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:32:49,599 INFO L471 AbstractCegarLoop]: Abstraction has 2336 states and 3769 transitions. [2018-07-24 00:32:49,599 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:32:49,599 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 3769 transitions. [2018-07-24 00:32:49,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-07-24 00:32:49,603 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:32:49,604 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:32:49,604 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:32:49,604 INFO L82 PathProgramCache]: Analyzing trace with hash 997374713, now seen corresponding path program 1 times [2018-07-24 00:32:49,605 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:32:49,605 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:32:49,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:32:49,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:32:49,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:32:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:32:50,627 WARN L169 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 21 [2018-07-24 00:32:50,713 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:32:50,714 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:32:50,714 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 00:32:50,716 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 00:32:50,716 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 00:32:50,716 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-07-24 00:32:50,717 INFO L87 Difference]: Start difference. First operand 2336 states and 3769 transitions. Second operand 6 states. [2018-07-24 00:33:08,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:33:08,475 INFO L93 Difference]: Finished difference Result 9183 states and 14416 transitions. [2018-07-24 00:33:08,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 00:33:08,476 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 103 [2018-07-24 00:33:08,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:33:08,512 INFO L225 Difference]: With dead ends: 9183 [2018-07-24 00:33:08,513 INFO L226 Difference]: Without dead ends: 6849 [2018-07-24 00:33:08,518 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-07-24 00:33:08,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6849 states. [2018-07-24 00:33:08,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6849 to 6849. [2018-07-24 00:33:08,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6849 states. [2018-07-24 00:33:08,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6849 states to 6849 states and 9754 transitions. [2018-07-24 00:33:08,658 INFO L78 Accepts]: Start accepts. Automaton has 6849 states and 9754 transitions. Word has length 103 [2018-07-24 00:33:08,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:33:08,659 INFO L471 AbstractCegarLoop]: Abstraction has 6849 states and 9754 transitions. [2018-07-24 00:33:08,659 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 00:33:08,659 INFO L276 IsEmpty]: Start isEmpty. Operand 6849 states and 9754 transitions. [2018-07-24 00:33:08,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-07-24 00:33:08,672 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:33:08,673 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:33:08,673 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:33:08,673 INFO L82 PathProgramCache]: Analyzing trace with hash 261897264, now seen corresponding path program 1 times [2018-07-24 00:33:08,673 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:33:08,674 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:33:08,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:33:08,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:33:08,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:33:08,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:33:09,131 WARN L169 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-07-24 00:33:09,403 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:33:09,403 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:33:09,403 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 00:33:09,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:33:09,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:33:09,530 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:33:09,701 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-07-24 00:33:09,731 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 00:33:09,731 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2018-07-24 00:33:09,732 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 00:33:09,732 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 00:33:09,732 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-07-24 00:33:09,733 INFO L87 Difference]: Start difference. First operand 6849 states and 9754 transitions. Second operand 7 states. [2018-07-24 00:33:21,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:33:21,617 INFO L93 Difference]: Finished difference Result 22720 states and 32085 transitions. [2018-07-24 00:33:21,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 00:33:21,626 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2018-07-24 00:33:21,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:33:21,707 INFO L225 Difference]: With dead ends: 22720 [2018-07-24 00:33:21,708 INFO L226 Difference]: Without dead ends: 15873 [2018-07-24 00:33:21,718 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 172 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2018-07-24 00:33:21,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15873 states. [2018-07-24 00:33:21,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15873 to 14369. [2018-07-24 00:33:21,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14369 states. [2018-07-24 00:33:22,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14369 states to 14369 states and 19600 transitions. [2018-07-24 00:33:22,013 INFO L78 Accepts]: Start accepts. Automaton has 14369 states and 19600 transitions. Word has length 172 [2018-07-24 00:33:22,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:33:22,014 INFO L471 AbstractCegarLoop]: Abstraction has 14369 states and 19600 transitions. [2018-07-24 00:33:22,015 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 00:33:22,015 INFO L276 IsEmpty]: Start isEmpty. Operand 14369 states and 19600 transitions. [2018-07-24 00:33:22,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-07-24 00:33:22,021 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:33:22,022 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 00:33:22,022 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:33:22,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1624400487, now seen corresponding path program 1 times [2018-07-24 00:33:22,026 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:33:22,026 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:33:22,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:33:22,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:33:22,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:33:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:33:22,522 WARN L169 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2018-07-24 00:33:22,811 WARN L169 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 9 [2018-07-24 00:33:22,985 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 113 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:33:22,986 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:33:22,986 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 00:33:22,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:33:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:33:23,070 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:33:23,256 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:33:23,289 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 00:33:23,289 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2018-07-24 00:33:23,290 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 00:33:23,290 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 00:33:23,290 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-24 00:33:23,291 INFO L87 Difference]: Start difference. First operand 14369 states and 19600 transitions. Second operand 6 states. [2018-07-24 00:33:39,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:33:39,828 INFO L93 Difference]: Finished difference Result 44556 states and 59910 transitions. [2018-07-24 00:33:39,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 00:33:39,828 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 208 [2018-07-24 00:33:39,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:33:39,898 INFO L225 Difference]: With dead ends: 44556 [2018-07-24 00:33:39,898 INFO L226 Difference]: Without dead ends: 27929 [2018-07-24 00:33:39,919 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 209 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-07-24 00:33:39,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27929 states. [2018-07-24 00:33:40,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27929 to 20383. [2018-07-24 00:33:40,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20383 states. [2018-07-24 00:33:40,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20383 states to 20383 states and 24881 transitions. [2018-07-24 00:33:40,276 INFO L78 Accepts]: Start accepts. Automaton has 20383 states and 24881 transitions. Word has length 208 [2018-07-24 00:33:40,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:33:40,276 INFO L471 AbstractCegarLoop]: Abstraction has 20383 states and 24881 transitions. [2018-07-24 00:33:40,277 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 00:33:40,277 INFO L276 IsEmpty]: Start isEmpty. Operand 20383 states and 24881 transitions. [2018-07-24 00:33:40,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2018-07-24 00:33:40,283 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:33:40,283 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 00:33:40,283 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:33:40,283 INFO L82 PathProgramCache]: Analyzing trace with hash -2093915251, now seen corresponding path program 1 times [2018-07-24 00:33:40,284 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:33:40,284 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:33:40,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:33:40,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:33:40,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:33:40,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:33:40,708 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:33:40,708 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:33:40,709 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:33:40,709 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:33:40,709 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:33:40,710 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:33:40,710 INFO L87 Difference]: Start difference. First operand 20383 states and 24881 transitions. Second operand 4 states. [2018-07-24 00:33:50,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:33:50,369 INFO L93 Difference]: Finished difference Result 68588 states and 85741 transitions. [2018-07-24 00:33:50,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:33:50,373 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 245 [2018-07-24 00:33:50,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:33:50,439 INFO L225 Difference]: With dead ends: 68588 [2018-07-24 00:33:50,440 INFO L226 Difference]: Without dead ends: 48959 [2018-07-24 00:33:50,471 INFO L573 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 [2018-07-24 00:33:50,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48959 states. [2018-07-24 00:33:50,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48959 to 48959. [2018-07-24 00:33:51,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48959 states. [2018-07-24 00:33:51,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48959 states to 48959 states and 59987 transitions. [2018-07-24 00:33:51,066 INFO L78 Accepts]: Start accepts. Automaton has 48959 states and 59987 transitions. Word has length 245 [2018-07-24 00:33:51,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:33:51,067 INFO L471 AbstractCegarLoop]: Abstraction has 48959 states and 59987 transitions. [2018-07-24 00:33:51,067 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:33:51,067 INFO L276 IsEmpty]: Start isEmpty. Operand 48959 states and 59987 transitions. [2018-07-24 00:33:51,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2018-07-24 00:33:51,074 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:33:51,074 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 00:33:51,074 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:33:51,075 INFO L82 PathProgramCache]: Analyzing trace with hash -766704694, now seen corresponding path program 1 times [2018-07-24 00:33:51,075 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:33:51,075 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:33:51,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:33:51,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:33:51,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:33:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:33:51,454 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 47 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-07-24 00:33:51,455 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:33:51,455 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 00:33:51,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:33:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:33:51,576 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:33:51,725 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:33:51,764 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 00:33:51,765 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-07-24 00:33:51,766 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 00:33:51,767 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 00:33:51,767 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-24 00:33:51,767 INFO L87 Difference]: Start difference. First operand 48959 states and 59987 transitions. Second operand 5 states. [2018-07-24 00:34:05,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:34:05,508 INFO L93 Difference]: Finished difference Result 127244 states and 157090 transitions. [2018-07-24 00:34:05,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 00:34:05,516 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 278 [2018-07-24 00:34:05,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:34:05,612 INFO L225 Difference]: With dead ends: 127244 [2018-07-24 00:34:05,612 INFO L226 Difference]: Without dead ends: 79039 [2018-07-24 00:34:05,663 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-24 00:34:05,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79039 states. [2018-07-24 00:34:06,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79039 to 74520. [2018-07-24 00:34:06,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74520 states. [2018-07-24 00:34:06,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74520 states to 74520 states and 86569 transitions. [2018-07-24 00:34:06,965 INFO L78 Accepts]: Start accepts. Automaton has 74520 states and 86569 transitions. Word has length 278 [2018-07-24 00:34:06,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:34:06,966 INFO L471 AbstractCegarLoop]: Abstraction has 74520 states and 86569 transitions. [2018-07-24 00:34:06,966 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 00:34:06,966 INFO L276 IsEmpty]: Start isEmpty. Operand 74520 states and 86569 transitions. [2018-07-24 00:34:06,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2018-07-24 00:34:06,981 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:34:06,981 INFO L353 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:06,985 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:34:06,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1156079840, now seen corresponding path program 1 times [2018-07-24 00:34:06,986 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:34:06,986 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:34:06,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:34:06,988 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:34:06,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:34:07,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:34:07,356 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-07-24 00:34:07,356 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:34:07,356 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:34:07,357 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:34:07,357 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:34:07,357 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:34:07,358 INFO L87 Difference]: Start difference. First operand 74520 states and 86569 transitions. Second operand 4 states. [2018-07-24 00:34:15,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:34:15,324 INFO L93 Difference]: Finished difference Result 179118 states and 207724 transitions. [2018-07-24 00:34:15,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:34:15,336 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 360 [2018-07-24 00:34:15,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:34:15,472 INFO L225 Difference]: With dead ends: 179118 [2018-07-24 00:34:15,473 INFO L226 Difference]: Without dead ends: 102340 [2018-07-24 00:34:15,527 INFO L573 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 [2018-07-24 00:34:15,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102340 states. [2018-07-24 00:34:16,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102340 to 97827. [2018-07-24 00:34:16,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97827 states. [2018-07-24 00:34:17,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97827 states to 97827 states and 109506 transitions. [2018-07-24 00:34:17,066 INFO L78 Accepts]: Start accepts. Automaton has 97827 states and 109506 transitions. Word has length 360 [2018-07-24 00:34:17,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:34:17,067 INFO L471 AbstractCegarLoop]: Abstraction has 97827 states and 109506 transitions. [2018-07-24 00:34:17,067 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:34:17,067 INFO L276 IsEmpty]: Start isEmpty. Operand 97827 states and 109506 transitions. [2018-07-24 00:34:17,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2018-07-24 00:34:17,107 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:34:17,107 INFO L353 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:34:17,107 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:34:17,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1564365212, now seen corresponding path program 1 times [2018-07-24 00:34:17,108 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:34:17,108 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:34:17,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:34:17,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:34:17,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:34:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:34:17,694 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2018-07-24 00:34:17,694 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:34:17,695 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:34:17,695 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 00:34:17,695 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 00:34:17,695 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 00:34:17,696 INFO L87 Difference]: Start difference. First operand 97827 states and 109506 transitions. Second operand 5 states. [2018-07-24 00:34:33,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:34:33,410 INFO L93 Difference]: Finished difference Result 352856 states and 398555 transitions. [2018-07-24 00:34:33,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 00:34:33,410 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 464 [2018-07-24 00:34:33,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:34:33,685 INFO L225 Difference]: With dead ends: 352856 [2018-07-24 00:34:33,685 INFO L226 Difference]: Without dead ends: 255783 [2018-07-24 00:34:33,763 INFO L573 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 [2018-07-24 00:34:33,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255783 states. [2018-07-24 00:34:36,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255783 to 193358. [2018-07-24 00:34:36,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193358 states. [2018-07-24 00:34:36,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193358 states to 193358 states and 215422 transitions. [2018-07-24 00:34:36,770 INFO L78 Accepts]: Start accepts. Automaton has 193358 states and 215422 transitions. Word has length 464 [2018-07-24 00:34:36,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:34:36,770 INFO L471 AbstractCegarLoop]: Abstraction has 193358 states and 215422 transitions. [2018-07-24 00:34:36,770 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 00:34:36,770 INFO L276 IsEmpty]: Start isEmpty. Operand 193358 states and 215422 transitions. [2018-07-24 00:34:36,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 793 [2018-07-24 00:34:36,896 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:34:36,897 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:36,897 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:34:36,898 INFO L82 PathProgramCache]: Analyzing trace with hash -585865080, now seen corresponding path program 1 times [2018-07-24 00:34:36,898 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:34:36,898 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:34:36,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:34:36,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:34:36,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:34:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:34:39,319 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 49 proven. 6 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2018-07-24 00:34:39,320 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:34:39,320 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 00:34:39,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:34:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:34:39,583 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:34:40,366 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:34:40,403 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 00:34:40,404 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2018-07-24 00:34:40,406 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 00:34:40,406 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 00:34:40,407 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-07-24 00:34:40,407 INFO L87 Difference]: Start difference. First operand 193358 states and 215422 transitions. Second operand 8 states. [2018-07-24 00:34:40,608 WARN L169 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-07-24 00:34:54,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:34:54,689 INFO L93 Difference]: Finished difference Result 381441 states and 425383 transitions. [2018-07-24 00:34:54,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 00:34:54,690 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 792 [2018-07-24 00:34:54,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:34:54,892 INFO L225 Difference]: With dead ends: 381441 [2018-07-24 00:34:54,892 INFO L226 Difference]: Without dead ends: 181306 [2018-07-24 00:34:54,984 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 794 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-07-24 00:34:55,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181306 states. [2018-07-24 00:34:57,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181306 to 176040. [2018-07-24 00:34:57,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176040 states. [2018-07-24 00:34:57,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176040 states to 176040 states and 185775 transitions. [2018-07-24 00:34:57,597 INFO L78 Accepts]: Start accepts. Automaton has 176040 states and 185775 transitions. Word has length 792 [2018-07-24 00:34:57,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:34:57,598 INFO L471 AbstractCegarLoop]: Abstraction has 176040 states and 185775 transitions. [2018-07-24 00:34:57,598 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-24 00:34:57,598 INFO L276 IsEmpty]: Start isEmpty. Operand 176040 states and 185775 transitions. [2018-07-24 00:34:57,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 985 [2018-07-24 00:34:57,683 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:34:57,684 INFO L353 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:57,684 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:34:57,685 INFO L82 PathProgramCache]: Analyzing trace with hash 646625582, now seen corresponding path program 1 times [2018-07-24 00:34:57,685 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:34:57,685 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:34:57,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:34:57,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:34:57,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:34:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:34:59,765 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 428 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-07-24 00:34:59,765 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:34:59,765 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:34:59,766 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:34:59,767 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:34:59,767 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:34:59,767 INFO L87 Difference]: Start difference. First operand 176040 states and 185775 transitions. Second operand 4 states. [2018-07-24 00:35:07,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:35:07,978 INFO L93 Difference]: Finished difference Result 346052 states and 365467 transitions. [2018-07-24 00:35:07,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:35:07,978 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 984 [2018-07-24 00:35:07,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:35:08,159 INFO L225 Difference]: With dead ends: 346052 [2018-07-24 00:35:08,160 INFO L226 Difference]: Without dead ends: 142899 [2018-07-24 00:35:08,226 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:35:08,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142899 states. [2018-07-24 00:35:14,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142899 to 135379. [2018-07-24 00:35:14,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135379 states. [2018-07-24 00:35:14,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135379 states to 135379 states and 140968 transitions. [2018-07-24 00:35:14,668 INFO L78 Accepts]: Start accepts. Automaton has 135379 states and 140968 transitions. Word has length 984 [2018-07-24 00:35:14,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:35:14,669 INFO L471 AbstractCegarLoop]: Abstraction has 135379 states and 140968 transitions. [2018-07-24 00:35:14,669 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:35:14,669 INFO L276 IsEmpty]: Start isEmpty. Operand 135379 states and 140968 transitions. [2018-07-24 00:35:14,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1060 [2018-07-24 00:35:14,730 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:35:14,731 INFO L353 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:35:14,731 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:35:14,732 INFO L82 PathProgramCache]: Analyzing trace with hash -473073513, now seen corresponding path program 1 times [2018-07-24 00:35:14,732 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:35:14,732 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:35:14,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:35:14,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:35:14,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:35:14,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:35:15,321 WARN L169 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-07-24 00:35:16,333 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 517 proven. 263 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-07-24 00:35:16,334 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:35:16,334 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 00:35:16,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:35:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:35:16,675 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:35:17,631 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 521 proven. 259 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-07-24 00:35:17,652 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-24 00:35:17,653 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 7 [2018-07-24 00:35:17,654 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 00:35:17,655 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 00:35:17,655 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 00:35:17,655 INFO L87 Difference]: Start difference. First operand 135379 states and 140968 transitions. Second operand 8 states. [2018-07-24 00:35:32,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:35:32,167 INFO L93 Difference]: Finished difference Result 295570 states and 307736 transitions. [2018-07-24 00:35:32,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-24 00:35:32,168 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1059 [2018-07-24 00:35:32,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:35:32,342 INFO L225 Difference]: With dead ends: 295570 [2018-07-24 00:35:32,342 INFO L226 Difference]: Without dead ends: 160945 [2018-07-24 00:35:32,408 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1071 GetRequests, 1058 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2018-07-24 00:35:32,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160945 states. [2018-07-24 00:35:33,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160945 to 144401. [2018-07-24 00:35:33,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144401 states. [2018-07-24 00:35:34,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144401 states to 144401 states and 150066 transitions. [2018-07-24 00:35:34,073 INFO L78 Accepts]: Start accepts. Automaton has 144401 states and 150066 transitions. Word has length 1059 [2018-07-24 00:35:34,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:35:34,074 INFO L471 AbstractCegarLoop]: Abstraction has 144401 states and 150066 transitions. [2018-07-24 00:35:34,074 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-24 00:35:34,074 INFO L276 IsEmpty]: Start isEmpty. Operand 144401 states and 150066 transitions. [2018-07-24 00:35:34,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1152 [2018-07-24 00:35:34,134 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:35:34,135 INFO L353 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, 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, 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, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:35:34,135 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:35:34,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1041354878, now seen corresponding path program 1 times [2018-07-24 00:35:34,136 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:35:34,136 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:35:34,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:35:34,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:35:34,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:35:34,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:35:35,140 WARN L169 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 17 [2018-07-24 00:35:39,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1229 backedges. 619 proven. 0 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2018-07-24 00:35:39,069 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:35:39,069 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-07-24 00:35:39,070 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-24 00:35:39,071 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-24 00:35:39,071 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-07-24 00:35:39,071 INFO L87 Difference]: Start difference. First operand 144401 states and 150066 transitions. Second operand 12 states. [2018-07-24 00:36:06,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:36:06,437 INFO L93 Difference]: Finished difference Result 290408 states and 301676 transitions. [2018-07-24 00:36:06,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-07-24 00:36:06,437 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 1151 [2018-07-24 00:36:06,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:36:06,574 INFO L225 Difference]: With dead ends: 290408 [2018-07-24 00:36:06,574 INFO L226 Difference]: Without dead ends: 151273 [2018-07-24 00:36:06,624 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=302, Invalid=754, Unknown=0, NotChecked=0, Total=1056 [2018-07-24 00:36:06,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151273 states. [2018-07-24 00:36:07,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151273 to 145905. [2018-07-24 00:36:07,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145905 states. [2018-07-24 00:36:08,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145905 states to 145905 states and 151588 transitions. [2018-07-24 00:36:08,079 INFO L78 Accepts]: Start accepts. Automaton has 145905 states and 151588 transitions. Word has length 1151 [2018-07-24 00:36:08,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:36:08,079 INFO L471 AbstractCegarLoop]: Abstraction has 145905 states and 151588 transitions. [2018-07-24 00:36:08,080 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-24 00:36:08,080 INFO L276 IsEmpty]: Start isEmpty. Operand 145905 states and 151588 transitions. [2018-07-24 00:36:08,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1171 [2018-07-24 00:36:08,139 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:36:08,140 INFO L353 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:36:08,140 INFO L414 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:36:08,141 INFO L82 PathProgramCache]: Analyzing trace with hash 2034755953, now seen corresponding path program 1 times [2018-07-24 00:36:08,141 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:36:08,141 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:36:08,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:36:08,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:36:08,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:36:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-07-24 00:36:10,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1234 backedges. 1022 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2018-07-24 00:36:10,062 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:36:10,062 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:36:10,063 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 00:36:10,063 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 00:36:10,064 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:36:10,064 INFO L87 Difference]: Start difference. First operand 145905 states and 151588 transitions. Second operand 3 states. [2018-07-24 00:36:10,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-24 00:36:10,065 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 00:36:10,073 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 00:36:10,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 12:36:10 BoogieIcfgContainer [2018-07-24 00:36:10,073 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 00:36:10,074 INFO L168 Benchmark]: Toolchain (without parser) took 227033.40 ms. Allocated memory was 1.5 GB in the beginning and 4.9 GB in the end (delta: 3.4 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-07-24 00:36:10,075 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 00:36:10,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2348.75 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-07-24 00:36:10,076 INFO L168 Benchmark]: Boogie Procedure Inliner took 432.72 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-07-24 00:36:10,077 INFO L168 Benchmark]: Boogie Preprocessor took 1105.22 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 984.6 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 169.6 MB. Max. memory is 7.1 GB. [2018-07-24 00:36:10,078 INFO L168 Benchmark]: RCFGBuilder took 10044.68 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 147.8 MB). Free memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: -116.2 MB). Peak memory consumption was 778.7 MB. Max. memory is 7.1 GB. [2018-07-24 00:36:10,079 INFO L168 Benchmark]: TraceAbstraction took 213097.13 ms. Allocated memory was 2.7 GB in the beginning and 4.9 GB in the end (delta: 2.3 GB). Free memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: -211.8 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-07-24 00:36:10,084 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2348.75 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 432.72 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1105.22 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 984.6 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 169.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10044.68 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 147.8 MB). Free memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: -116.2 MB). Peak memory consumption was 778.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213097.13 ms. Allocated memory was 2.7 GB in the beginning and 4.9 GB in the end (delta: 2.3 GB). Free memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: -211.8 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 87). Cancelled while BasicCegarLoop was constructing difference of abstraction (145905states) and interpolant automaton (currently 2 states, 3 states before enhancement), while ReachableStatesComputation was computing reachable states (1 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 819 locations, 1 error locations. TIMEOUT Result, 213.0s OverallTime, 13 OverallIterations, 6 TraceHistogramMax, 171.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7031 SDtfs, 45910 SDslu, 1535 SDs, 0 SdLazy, 90337 SolverSat, 15186 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 137.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2635 GetRequests, 2534 SyntacticMatches, 16 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=193358occurred 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: 19.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 115205 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 10.1s InterpolantComputationTime, 9521 NumberOfCodeBlocks, 9521 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 9503 ConstructedInterpolants, 0 QuantifiedInterpolants, 33540845 SizeOfPredicates, 10 NumberOfNonLiveVariables, 3029 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 18 InterpolantComputations, 12 PerfectInterpolantSequences, 6248/6787 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/Problem12_label30_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_00-36-10-100.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label30_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_00-36-10-100.csv Completed graceful shutdown