java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label43_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 21:46:14,493 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 21:46:14,495 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 21:46:14,512 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 21:46:14,512 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 21:46:14,514 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 21:46:14,515 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 21:46:14,517 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 21:46:14,519 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 21:46:14,523 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 21:46:14,524 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 21:46:14,524 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 21:46:14,526 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 21:46:14,527 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 21:46:14,529 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 21:46:14,530 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 21:46:14,538 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 21:46:14,540 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 21:46:14,545 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 21:46:14,549 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 21:46:14,550 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 21:46:14,551 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 21:46:14,555 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-06 21:46:14,569 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 [2018-11-06 21:46:14,584 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 21:46:14,584 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 21:46:14,585 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 21:46:14,585 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 21:46:14,586 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 21:46:14,586 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 21:46:14,586 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 21:46:14,587 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 21:46:14,587 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 21:46:14,587 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 21:46:14,587 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 21:46:14,587 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 21:46:14,588 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 21:46:14,588 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 21:46:14,588 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 21:46:14,588 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 21:46:14,588 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 21:46:14,589 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 21:46:14,589 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 21:46:14,589 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 21:46:14,589 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 21:46:14,589 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 21:46:14,589 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 21:46:14,590 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 21:46:14,590 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 21:46:14,590 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 21:46:14,590 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 21:46:14,590 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 21:46:14,653 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 21:46:14,668 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 21:46:14,672 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 21:46:14,674 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 21:46:14,675 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 21:46:14,675 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label43_true-unreach-call.c [2018-11-06 21:46:14,737 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d046bf8d2/8672d97c4a7a4789934171f48abcbac3/FLAGc147843ac [2018-11-06 21:46:15,464 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 21:46:15,465 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label43_true-unreach-call.c [2018-11-06 21:46:15,493 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d046bf8d2/8672d97c4a7a4789934171f48abcbac3/FLAGc147843ac [2018-11-06 21:46:15,516 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d046bf8d2/8672d97c4a7a4789934171f48abcbac3 [2018-11-06 21:46:15,528 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 21:46:15,530 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 21:46:15,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 21:46:15,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 21:46:15,537 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 21:46:15,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:46:15" (1/1) ... [2018-11-06 21:46:15,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e2595a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:15, skipping insertion in model container [2018-11-06 21:46:15,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:46:15" (1/1) ... [2018-11-06 21:46:15,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 21:46:15,682 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 21:46:16,835 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 21:46:16,841 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 21:46:17,231 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 21:46:17,257 INFO L193 MainTranslator]: Completed translation [2018-11-06 21:46:17,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:17 WrapperNode [2018-11-06 21:46:17,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 21:46:17,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 21:46:17,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 21:46:17,260 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 21:46:17,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:17" (1/1) ... [2018-11-06 21:46:17,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:17" (1/1) ... [2018-11-06 21:46:17,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 21:46:17,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 21:46:17,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 21:46:17,789 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 21:46:17,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:17" (1/1) ... [2018-11-06 21:46:17,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:17" (1/1) ... [2018-11-06 21:46:17,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:17" (1/1) ... [2018-11-06 21:46:17,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:17" (1/1) ... [2018-11-06 21:46:17,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:17" (1/1) ... [2018-11-06 21:46:18,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:17" (1/1) ... [2018-11-06 21:46:18,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:17" (1/1) ... [2018-11-06 21:46:18,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 21:46:18,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 21:46:18,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 21:46:18,152 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 21:46:18,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:17" (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 [2018-11-06 21:46:18,214 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 21:46:18,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 21:46:18,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 21:46:25,945 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 21:46:25,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:46:25 BoogieIcfgContainer [2018-11-06 21:46:25,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 21:46:25,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 21:46:25,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 21:46:25,951 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 21:46:25,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:46:15" (1/3) ... [2018-11-06 21:46:25,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163fd4d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:46:25, skipping insertion in model container [2018-11-06 21:46:25,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:46:17" (2/3) ... [2018-11-06 21:46:25,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163fd4d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:46:25, skipping insertion in model container [2018-11-06 21:46:25,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:46:25" (3/3) ... [2018-11-06 21:46:25,955 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label43_true-unreach-call.c [2018-11-06 21:46:25,966 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 21:46:25,975 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 21:46:25,993 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 21:46:26,035 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 21:46:26,036 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 21:46:26,036 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 21:46:26,036 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 21:46:26,036 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 21:46:26,037 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 21:46:26,037 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 21:46:26,037 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 21:46:26,037 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 21:46:26,068 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states. [2018-11-06 21:46:26,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-06 21:46:26,078 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:46:26,080 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:46:26,082 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:46:26,088 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:46:26,089 INFO L82 PathProgramCache]: Analyzing trace with hash 265969354, now seen corresponding path program 1 times [2018-11-06 21:46:26,091 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:46:26,092 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:46:26,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:46:26,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:46:26,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:46:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:46:26,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:46:26,584 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:46:26,584 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 21:46:26,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:46:26,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:46:26,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:46:26,611 INFO L87 Difference]: Start difference. First operand 591 states. Second operand 4 states. [2018-11-06 21:46:34,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:46:34,784 INFO L93 Difference]: Finished difference Result 2078 states and 3883 transitions. [2018-11-06 21:46:34,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:46:34,787 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2018-11-06 21:46:34,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:46:34,821 INFO L225 Difference]: With dead ends: 2078 [2018-11-06 21:46:34,821 INFO L226 Difference]: Without dead ends: 1480 [2018-11-06 21:46:34,829 INFO L604 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 [2018-11-06 21:46:34,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2018-11-06 21:46:34,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1019. [2018-11-06 21:46:34,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1019 states. [2018-11-06 21:46:34,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1572 transitions. [2018-11-06 21:46:34,948 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1572 transitions. Word has length 63 [2018-11-06 21:46:34,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:46:34,950 INFO L480 AbstractCegarLoop]: Abstraction has 1019 states and 1572 transitions. [2018-11-06 21:46:34,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:46:34,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1572 transitions. [2018-11-06 21:46:34,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-11-06 21:46:34,960 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:46:34,960 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 21:46:34,961 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:46:34,963 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:46:34,963 INFO L82 PathProgramCache]: Analyzing trace with hash 620356926, now seen corresponding path program 1 times [2018-11-06 21:46:34,963 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:46:34,963 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:46:34,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:46:34,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:46:34,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:46:35,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:46:35,354 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:46:35,354 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:46:35,355 INFO L225 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 [2018-11-06 21:46:35,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:46:35,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:46:35,470 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:46:35,757 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:46:35,794 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 21:46:35,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-11-06 21:46:35,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 21:46:35,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 21:46:35,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-06 21:46:35,796 INFO L87 Difference]: Start difference. First operand 1019 states and 1572 transitions. Second operand 6 states. [2018-11-06 21:46:51,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:46:51,300 INFO L93 Difference]: Finished difference Result 4293 states and 6868 transitions. [2018-11-06 21:46:51,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-06 21:46:51,301 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 134 [2018-11-06 21:46:51,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:46:51,321 INFO L225 Difference]: With dead ends: 4293 [2018-11-06 21:46:51,321 INFO L226 Difference]: Without dead ends: 3276 [2018-11-06 21:46:51,325 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-06 21:46:51,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3276 states. [2018-11-06 21:46:51,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3276 to 3264. [2018-11-06 21:46:51,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3264 states. [2018-11-06 21:46:51,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3264 states to 3264 states and 4791 transitions. [2018-11-06 21:46:51,395 INFO L78 Accepts]: Start accepts. Automaton has 3264 states and 4791 transitions. Word has length 134 [2018-11-06 21:46:51,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:46:51,396 INFO L480 AbstractCegarLoop]: Abstraction has 3264 states and 4791 transitions. [2018-11-06 21:46:51,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 21:46:51,396 INFO L276 IsEmpty]: Start isEmpty. Operand 3264 states and 4791 transitions. [2018-11-06 21:46:51,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-11-06 21:46:51,402 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:46:51,403 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 21:46:51,403 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:46:51,403 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:46:51,403 INFO L82 PathProgramCache]: Analyzing trace with hash 2014842391, now seen corresponding path program 1 times [2018-11-06 21:46:51,404 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:46:51,404 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:46:51,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:46:51,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:46:51,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:46:51,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:46:51,940 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 21:46:51,940 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:46:51,941 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 21:46:51,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 21:46:51,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 21:46:51,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 21:46:51,942 INFO L87 Difference]: Start difference. First operand 3264 states and 4791 transitions. Second operand 5 states. [2018-11-06 21:47:01,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:47:01,410 INFO L93 Difference]: Finished difference Result 14759 states and 21773 transitions. [2018-11-06 21:47:01,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 21:47:01,411 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 169 [2018-11-06 21:47:01,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:47:01,462 INFO L225 Difference]: With dead ends: 14759 [2018-11-06 21:47:01,463 INFO L226 Difference]: Without dead ends: 11497 [2018-11-06 21:47:01,471 INFO L604 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 [2018-11-06 21:47:01,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11497 states. [2018-11-06 21:47:01,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11497 to 6249. [2018-11-06 21:47:01,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6249 states. [2018-11-06 21:47:01,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6249 states to 6249 states and 8433 transitions. [2018-11-06 21:47:01,621 INFO L78 Accepts]: Start accepts. Automaton has 6249 states and 8433 transitions. Word has length 169 [2018-11-06 21:47:01,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:47:01,621 INFO L480 AbstractCegarLoop]: Abstraction has 6249 states and 8433 transitions. [2018-11-06 21:47:01,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 21:47:01,622 INFO L276 IsEmpty]: Start isEmpty. Operand 6249 states and 8433 transitions. [2018-11-06 21:47:01,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2018-11-06 21:47:01,628 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:47:01,628 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:47:01,628 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:47:01,629 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:47:01,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1332512410, now seen corresponding path program 1 times [2018-11-06 21:47:01,629 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:47:01,629 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:47:01,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:47:01,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:47:01,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:47:01,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:47:02,067 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-11-06 21:47:02,067 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:47:02,067 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 21:47:02,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 21:47:02,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 21:47:02,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 21:47:02,068 INFO L87 Difference]: Start difference. First operand 6249 states and 8433 transitions. Second operand 3 states. [2018-11-06 21:47:05,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:47:05,365 INFO L93 Difference]: Finished difference Result 17164 states and 23439 transitions. [2018-11-06 21:47:05,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 21:47:05,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2018-11-06 21:47:05,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:47:05,398 INFO L225 Difference]: With dead ends: 17164 [2018-11-06 21:47:05,399 INFO L226 Difference]: Without dead ends: 9147 [2018-11-06 21:47:05,409 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 21:47:05,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9147 states. [2018-11-06 21:47:05,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9147 to 8717. [2018-11-06 21:47:05,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8717 states. [2018-11-06 21:47:05,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8717 states to 8717 states and 10134 transitions. [2018-11-06 21:47:05,536 INFO L78 Accepts]: Start accepts. Automaton has 8717 states and 10134 transitions. Word has length 238 [2018-11-06 21:47:05,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:47:05,537 INFO L480 AbstractCegarLoop]: Abstraction has 8717 states and 10134 transitions. [2018-11-06 21:47:05,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 21:47:05,537 INFO L276 IsEmpty]: Start isEmpty. Operand 8717 states and 10134 transitions. [2018-11-06 21:47:05,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2018-11-06 21:47:05,542 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:47:05,542 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:47:05,542 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:47:05,543 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:47:05,543 INFO L82 PathProgramCache]: Analyzing trace with hash 502042689, now seen corresponding path program 1 times [2018-11-06 21:47:05,543 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:47:05,543 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:47:05,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:47:05,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:47:05,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:47:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:47:05,938 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 143 proven. 5 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-11-06 21:47:05,938 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:47:05,938 INFO L225 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 [2018-11-06 21:47:05,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:47:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:47:06,065 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:47:06,241 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-11-06 21:47:06,274 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 21:47:06,274 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-11-06 21:47:06,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 21:47:06,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 21:47:06,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 21:47:06,277 INFO L87 Difference]: Start difference. First operand 8717 states and 10134 transitions. Second operand 5 states. [2018-11-06 21:47:10,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:47:10,598 INFO L93 Difference]: Finished difference Result 21691 states and 25724 transitions. [2018-11-06 21:47:10,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:47:10,599 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 251 [2018-11-06 21:47:10,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:47:10,627 INFO L225 Difference]: With dead ends: 21691 [2018-11-06 21:47:10,627 INFO L226 Difference]: Without dead ends: 12976 [2018-11-06 21:47:10,634 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 21:47:10,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12976 states. [2018-11-06 21:47:10,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12976 to 12975. [2018-11-06 21:47:10,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12975 states. [2018-11-06 21:47:10,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12975 states to 12975 states and 14813 transitions. [2018-11-06 21:47:10,790 INFO L78 Accepts]: Start accepts. Automaton has 12975 states and 14813 transitions. Word has length 251 [2018-11-06 21:47:10,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:47:10,791 INFO L480 AbstractCegarLoop]: Abstraction has 12975 states and 14813 transitions. [2018-11-06 21:47:10,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 21:47:10,791 INFO L276 IsEmpty]: Start isEmpty. Operand 12975 states and 14813 transitions. [2018-11-06 21:47:10,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2018-11-06 21:47:10,802 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:47:10,802 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 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] [2018-11-06 21:47:10,802 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:47:10,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:47:10,803 INFO L82 PathProgramCache]: Analyzing trace with hash -208627884, now seen corresponding path program 1 times [2018-11-06 21:47:10,803 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:47:10,803 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:47:10,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:47:10,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:47:10,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:47:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:47:11,321 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 405 proven. 83 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2018-11-06 21:47:11,321 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:47:11,321 INFO L225 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 [2018-11-06 21:47:11,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:47:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:47:11,435 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:47:11,577 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 405 proven. 83 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2018-11-06 21:47:11,597 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 21:47:11,597 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-11-06 21:47:11,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-06 21:47:11,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-06 21:47:11,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-06 21:47:11,598 INFO L87 Difference]: Start difference. First operand 12975 states and 14813 transitions. Second operand 7 states. [2018-11-06 21:47:21,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:47:21,693 INFO L93 Difference]: Finished difference Result 48571 states and 54849 transitions. [2018-11-06 21:47:21,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 21:47:21,694 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 389 [2018-11-06 21:47:21,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:47:21,741 INFO L225 Difference]: With dead ends: 48571 [2018-11-06 21:47:21,742 INFO L226 Difference]: Without dead ends: 26153 [2018-11-06 21:47:21,763 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-11-06 21:47:21,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26153 states. [2018-11-06 21:47:22,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26153 to 24005. [2018-11-06 21:47:22,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24005 states. [2018-11-06 21:47:22,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24005 states to 24005 states and 26227 transitions. [2018-11-06 21:47:22,043 INFO L78 Accepts]: Start accepts. Automaton has 24005 states and 26227 transitions. Word has length 389 [2018-11-06 21:47:22,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:47:22,044 INFO L480 AbstractCegarLoop]: Abstraction has 24005 states and 26227 transitions. [2018-11-06 21:47:22,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-06 21:47:22,044 INFO L276 IsEmpty]: Start isEmpty. Operand 24005 states and 26227 transitions. [2018-11-06 21:47:22,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2018-11-06 21:47:22,056 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:47:22,056 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:47:22,057 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:47:22,057 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:47:22,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1689803181, now seen corresponding path program 1 times [2018-11-06 21:47:22,057 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:47:22,058 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:47:22,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:47:22,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:47:22,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:47:22,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:47:22,792 WARN L179 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 8 [2018-11-06 21:47:23,094 WARN L179 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 12 [2018-11-06 21:47:23,883 WARN L179 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 30 [2018-11-06 21:47:24,069 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 310 proven. 83 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-11-06 21:47:24,069 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:47:24,070 INFO L225 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 [2018-11-06 21:47:24,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:47:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:47:24,185 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:47:24,897 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 310 proven. 83 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-11-06 21:47:24,931 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 21:47:24,931 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2018-11-06 21:47:24,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-06 21:47:24,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-06 21:47:24,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-11-06 21:47:24,935 INFO L87 Difference]: Start difference. First operand 24005 states and 26227 transitions. Second operand 9 states. [2018-11-06 21:47:33,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:47:33,998 INFO L93 Difference]: Finished difference Result 49878 states and 54410 transitions. [2018-11-06 21:47:33,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 21:47:33,999 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 409 [2018-11-06 21:47:34,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:47:34,032 INFO L225 Difference]: With dead ends: 49878 [2018-11-06 21:47:34,032 INFO L226 Difference]: Without dead ends: 26301 [2018-11-06 21:47:34,057 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 407 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-11-06 21:47:34,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26301 states. [2018-11-06 21:47:34,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26301 to 26135. [2018-11-06 21:47:34,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26135 states. [2018-11-06 21:47:34,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26135 states to 26135 states and 28426 transitions. [2018-11-06 21:47:34,360 INFO L78 Accepts]: Start accepts. Automaton has 26135 states and 28426 transitions. Word has length 409 [2018-11-06 21:47:34,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:47:34,361 INFO L480 AbstractCegarLoop]: Abstraction has 26135 states and 28426 transitions. [2018-11-06 21:47:34,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-06 21:47:34,361 INFO L276 IsEmpty]: Start isEmpty. Operand 26135 states and 28426 transitions. [2018-11-06 21:47:34,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2018-11-06 21:47:34,381 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:47:34,381 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:47:34,381 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:47:34,382 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:47:34,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1252882665, now seen corresponding path program 1 times [2018-11-06 21:47:34,382 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:47:34,382 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:47:34,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:47:34,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:47:34,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:47:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:47:34,953 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 5 [2018-11-06 21:47:35,463 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 513 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2018-11-06 21:47:35,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:47:35,463 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 21:47:35,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 21:47:35,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 21:47:35,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:47:35,465 INFO L87 Difference]: Start difference. First operand 26135 states and 28426 transitions. Second operand 4 states. [2018-11-06 21:47:39,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:47:39,457 INFO L93 Difference]: Finished difference Result 71065 states and 77478 transitions. [2018-11-06 21:47:39,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 21:47:39,457 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 490 [2018-11-06 21:47:39,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:47:39,508 INFO L225 Difference]: With dead ends: 71065 [2018-11-06 21:47:39,509 INFO L226 Difference]: Without dead ends: 45784 [2018-11-06 21:47:39,531 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 21:47:39,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45784 states. [2018-11-06 21:47:39,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45784 to 27400. [2018-11-06 21:47:39,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27400 states. [2018-11-06 21:47:39,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27400 states to 27400 states and 29744 transitions. [2018-11-06 21:47:39,898 INFO L78 Accepts]: Start accepts. Automaton has 27400 states and 29744 transitions. Word has length 490 [2018-11-06 21:47:39,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:47:39,899 INFO L480 AbstractCegarLoop]: Abstraction has 27400 states and 29744 transitions. [2018-11-06 21:47:39,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 21:47:39,899 INFO L276 IsEmpty]: Start isEmpty. Operand 27400 states and 29744 transitions. [2018-11-06 21:47:39,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2018-11-06 21:47:39,917 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:47:39,918 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-06 21:47:39,918 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:47:39,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:47:39,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1944185802, now seen corresponding path program 1 times [2018-11-06 21:47:39,919 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:47:39,919 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:47:39,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:47:39,920 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:47:39,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:47:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:47:40,833 WARN L179 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 8 [2018-11-06 21:47:41,185 WARN L179 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2018-11-06 21:47:42,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1198 backedges. 619 proven. 501 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-11-06 21:47:42,027 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:47:42,027 INFO L225 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 [2018-11-06 21:47:42,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:47:42,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:47:42,207 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:47:42,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1198 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 894 trivial. 0 not checked. [2018-11-06 21:47:42,934 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 21:47:42,935 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2018-11-06 21:47:42,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-06 21:47:42,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-06 21:47:42,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-06 21:47:42,936 INFO L87 Difference]: Start difference. First operand 27400 states and 29744 transitions. Second operand 10 states. [2018-11-06 21:48:22,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:48:22,828 INFO L93 Difference]: Finished difference Result 72533 states and 79157 transitions. [2018-11-06 21:48:22,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-06 21:48:22,832 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 596 [2018-11-06 21:48:22,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:48:22,877 INFO L225 Difference]: With dead ends: 72533 [2018-11-06 21:48:22,877 INFO L226 Difference]: Without dead ends: 44276 [2018-11-06 21:48:22,895 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 627 GetRequests, 603 SyntacticMatches, 8 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2018-11-06 21:48:22,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44276 states. [2018-11-06 21:48:23,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44276 to 36778. [2018-11-06 21:48:23,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36778 states. [2018-11-06 21:48:23,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36778 states to 36778 states and 39717 transitions. [2018-11-06 21:48:23,389 INFO L78 Accepts]: Start accepts. Automaton has 36778 states and 39717 transitions. Word has length 596 [2018-11-06 21:48:23,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:48:23,389 INFO L480 AbstractCegarLoop]: Abstraction has 36778 states and 39717 transitions. [2018-11-06 21:48:23,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-06 21:48:23,390 INFO L276 IsEmpty]: Start isEmpty. Operand 36778 states and 39717 transitions. [2018-11-06 21:48:23,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1006 [2018-11-06 21:48:23,437 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:48:23,438 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 21:48:23,438 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:48:23,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:48:23,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1450924878, now seen corresponding path program 1 times [2018-11-06 21:48:23,439 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:48:23,439 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:48:23,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:48:23,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:48:23,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:48:23,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:48:24,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 863 proven. 0 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2018-11-06 21:48:24,394 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:48:24,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 21:48:24,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 21:48:24,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 21:48:24,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 21:48:24,396 INFO L87 Difference]: Start difference. First operand 36778 states and 39717 transitions. Second operand 3 states. [2018-11-06 21:48:26,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:48:26,770 INFO L93 Difference]: Finished difference Result 76106 states and 82309 transitions. [2018-11-06 21:48:26,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 21:48:26,771 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1005 [2018-11-06 21:48:26,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:48:26,819 INFO L225 Difference]: With dead ends: 76106 [2018-11-06 21:48:26,819 INFO L226 Difference]: Without dead ends: 41461 [2018-11-06 21:48:26,843 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 21:48:26,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41461 states. [2018-11-06 21:48:27,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41461 to 41456. [2018-11-06 21:48:27,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41456 states. [2018-11-06 21:48:27,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41456 states to 41456 states and 44428 transitions. [2018-11-06 21:48:27,373 INFO L78 Accepts]: Start accepts. Automaton has 41456 states and 44428 transitions. Word has length 1005 [2018-11-06 21:48:27,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:48:27,374 INFO L480 AbstractCegarLoop]: Abstraction has 41456 states and 44428 transitions. [2018-11-06 21:48:27,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 21:48:27,374 INFO L276 IsEmpty]: Start isEmpty. Operand 41456 states and 44428 transitions. [2018-11-06 21:48:27,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1049 [2018-11-06 21:48:27,424 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:48:27,425 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 21:48:27,425 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:48:27,425 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:48:27,426 INFO L82 PathProgramCache]: Analyzing trace with hash -99291151, now seen corresponding path program 1 times [2018-11-06 21:48:27,426 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:48:27,426 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:48:27,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:48:27,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:48:27,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:48:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:48:28,617 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-11-06 21:48:29,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1466 backedges. 883 proven. 0 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2018-11-06 21:48:29,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:48:29,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-06 21:48:29,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 21:48:29,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 21:48:29,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 21:48:29,312 INFO L87 Difference]: Start difference. First operand 41456 states and 44428 transitions. Second operand 5 states. [2018-11-06 21:48:34,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:48:34,198 INFO L93 Difference]: Finished difference Result 91871 states and 98841 transitions. [2018-11-06 21:48:34,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 21:48:34,198 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1048 [2018-11-06 21:48:34,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:48:34,261 INFO L225 Difference]: With dead ends: 91871 [2018-11-06 21:48:34,261 INFO L226 Difference]: Without dead ends: 52548 [2018-11-06 21:48:34,288 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 21:48:34,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52548 states. [2018-11-06 21:48:34,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52548 to 40595. [2018-11-06 21:48:34,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40595 states. [2018-11-06 21:48:34,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40595 states to 40595 states and 43586 transitions. [2018-11-06 21:48:34,774 INFO L78 Accepts]: Start accepts. Automaton has 40595 states and 43586 transitions. Word has length 1048 [2018-11-06 21:48:34,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:48:34,776 INFO L480 AbstractCegarLoop]: Abstraction has 40595 states and 43586 transitions. [2018-11-06 21:48:34,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 21:48:34,776 INFO L276 IsEmpty]: Start isEmpty. Operand 40595 states and 43586 transitions. [2018-11-06 21:48:34,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1181 [2018-11-06 21:48:34,818 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:48:34,819 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 21:48:34,819 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:48:34,819 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:48:34,820 INFO L82 PathProgramCache]: Analyzing trace with hash -832207049, now seen corresponding path program 1 times [2018-11-06 21:48:34,820 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:48:34,820 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:48:34,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:48:34,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:48:34,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:48:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:48:36,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2716 backedges. 1443 proven. 0 refuted. 0 times theorem prover too weak. 1273 trivial. 0 not checked. [2018-11-06 21:48:36,166 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:48:36,166 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 21:48:36,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 21:48:36,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 21:48:36,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 21:48:36,168 INFO L87 Difference]: Start difference. First operand 40595 states and 43586 transitions. Second operand 3 states. [2018-11-06 21:48:37,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:48:37,498 INFO L93 Difference]: Finished difference Result 77344 states and 83073 transitions. [2018-11-06 21:48:37,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 21:48:37,499 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1180 [2018-11-06 21:48:37,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:48:37,533 INFO L225 Difference]: With dead ends: 77344 [2018-11-06 21:48:37,534 INFO L226 Difference]: Without dead ends: 38882 [2018-11-06 21:48:37,553 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 21:48:37,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38882 states. [2018-11-06 21:48:37,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38882 to 37174. [2018-11-06 21:48:37,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37174 states. [2018-11-06 21:48:37,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37174 states to 37174 states and 39904 transitions. [2018-11-06 21:48:37,845 INFO L78 Accepts]: Start accepts. Automaton has 37174 states and 39904 transitions. Word has length 1180 [2018-11-06 21:48:37,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:48:37,845 INFO L480 AbstractCegarLoop]: Abstraction has 37174 states and 39904 transitions. [2018-11-06 21:48:37,845 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 21:48:37,845 INFO L276 IsEmpty]: Start isEmpty. Operand 37174 states and 39904 transitions. [2018-11-06 21:48:37,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1217 [2018-11-06 21:48:37,882 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:48:37,883 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:48:37,884 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:48:37,884 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:48:37,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1435217473, now seen corresponding path program 1 times [2018-11-06 21:48:37,884 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:48:37,884 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:48:37,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:48:37,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:48:37,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:48:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:48:39,767 INFO L134 CoverageAnalysis]: Checked inductivity of 3187 backedges. 2465 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2018-11-06 21:48:39,767 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:48:39,768 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-06 21:48:39,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 21:48:39,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 21:48:39,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 21:48:39,769 INFO L87 Difference]: Start difference. First operand 37174 states and 39904 transitions. Second operand 5 states. [2018-11-06 21:48:44,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:48:44,989 INFO L93 Difference]: Finished difference Result 83295 states and 89576 transitions. [2018-11-06 21:48:44,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 21:48:44,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1216 [2018-11-06 21:48:44,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:48:45,033 INFO L225 Difference]: With dead ends: 83295 [2018-11-06 21:48:45,033 INFO L226 Difference]: Without dead ends: 46123 [2018-11-06 21:48:45,054 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 21:48:45,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46123 states. [2018-11-06 21:48:45,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46123 to 41859. [2018-11-06 21:48:45,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41859 states. [2018-11-06 21:48:45,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41859 states to 41859 states and 44758 transitions. [2018-11-06 21:48:45,455 INFO L78 Accepts]: Start accepts. Automaton has 41859 states and 44758 transitions. Word has length 1216 [2018-11-06 21:48:45,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:48:45,456 INFO L480 AbstractCegarLoop]: Abstraction has 41859 states and 44758 transitions. [2018-11-06 21:48:45,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 21:48:45,456 INFO L276 IsEmpty]: Start isEmpty. Operand 41859 states and 44758 transitions. [2018-11-06 21:48:45,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1219 [2018-11-06 21:48:45,501 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:48:45,502 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 21:48:45,503 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:48:45,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:48:45,503 INFO L82 PathProgramCache]: Analyzing trace with hash -2031362218, now seen corresponding path program 1 times [2018-11-06 21:48:45,503 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:48:45,503 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:48:45,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:48:45,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:48:45,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:48:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:48:47,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1651 backedges. 1341 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2018-11-06 21:48:47,515 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 21:48:47,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 21:48:47,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 21:48:47,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 21:48:47,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 21:48:47,517 INFO L87 Difference]: Start difference. First operand 41859 states and 44758 transitions. Second operand 3 states. [2018-11-06 21:48:49,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:48:49,783 INFO L93 Difference]: Finished difference Result 82862 states and 88599 transitions. [2018-11-06 21:48:49,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 21:48:49,784 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1218 [2018-11-06 21:48:49,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:48:49,823 INFO L225 Difference]: With dead ends: 82862 [2018-11-06 21:48:49,823 INFO L226 Difference]: Without dead ends: 41431 [2018-11-06 21:48:49,843 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 21:48:49,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41431 states. [2018-11-06 21:48:50,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41431 to 40574. [2018-11-06 21:48:50,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40574 states. [2018-11-06 21:48:50,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40574 states to 40574 states and 42919 transitions. [2018-11-06 21:48:50,236 INFO L78 Accepts]: Start accepts. Automaton has 40574 states and 42919 transitions. Word has length 1218 [2018-11-06 21:48:50,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:48:50,237 INFO L480 AbstractCegarLoop]: Abstraction has 40574 states and 42919 transitions. [2018-11-06 21:48:50,237 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 21:48:50,237 INFO L276 IsEmpty]: Start isEmpty. Operand 40574 states and 42919 transitions. [2018-11-06 21:48:50,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1222 [2018-11-06 21:48:50,270 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:48:50,271 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:48:50,271 INFO L423 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:48:50,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:48:50,271 INFO L82 PathProgramCache]: Analyzing trace with hash 227169782, now seen corresponding path program 1 times [2018-11-06 21:48:50,272 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:48:50,272 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:48:50,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:48:50,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:48:50,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:48:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:48:52,921 INFO L134 CoverageAnalysis]: Checked inductivity of 3222 backedges. 1643 proven. 404 refuted. 0 times theorem prover too weak. 1175 trivial. 0 not checked. [2018-11-06 21:48:52,922 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:48:52,922 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 21:48:52,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:48:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:48:53,238 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:48:53,655 WARN L179 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 17 [2018-11-06 21:48:54,695 INFO L134 CoverageAnalysis]: Checked inductivity of 3222 backedges. 1882 proven. 0 refuted. 0 times theorem prover too weak. 1340 trivial. 0 not checked. [2018-11-06 21:48:54,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 21:48:54,717 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-11-06 21:48:54,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-06 21:48:54,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-06 21:48:54,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-06 21:48:54,718 INFO L87 Difference]: Start difference. First operand 40574 states and 42919 transitions. Second operand 7 states. [2018-11-06 21:49:07,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:49:07,034 INFO L93 Difference]: Finished difference Result 96942 states and 102654 transitions. [2018-11-06 21:49:07,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-06 21:49:07,034 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1221 [2018-11-06 21:49:07,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:49:07,098 INFO L225 Difference]: With dead ends: 96942 [2018-11-06 21:49:07,098 INFO L226 Difference]: Without dead ends: 56369 [2018-11-06 21:49:07,124 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1233 GetRequests, 1223 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-11-06 21:49:07,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56369 states. [2018-11-06 21:49:07,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56369 to 50808. [2018-11-06 21:49:07,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50808 states. [2018-11-06 21:49:07,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50808 states to 50808 states and 53206 transitions. [2018-11-06 21:49:07,637 INFO L78 Accepts]: Start accepts. Automaton has 50808 states and 53206 transitions. Word has length 1221 [2018-11-06 21:49:07,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:49:07,637 INFO L480 AbstractCegarLoop]: Abstraction has 50808 states and 53206 transitions. [2018-11-06 21:49:07,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-06 21:49:07,638 INFO L276 IsEmpty]: Start isEmpty. Operand 50808 states and 53206 transitions. [2018-11-06 21:49:07,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1244 [2018-11-06 21:49:07,674 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:49:07,675 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:49:07,675 INFO L423 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:49:07,675 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:49:07,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1842489281, now seen corresponding path program 1 times [2018-11-06 21:49:07,675 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:49:07,676 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:49:07,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:49:07,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:49:07,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:49:07,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:49:08,784 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 5 [2018-11-06 21:49:10,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3300 backedges. 2447 proven. 116 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2018-11-06 21:49:10,163 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:49:10,164 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 21:49:10,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:49:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:49:10,484 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:49:10,722 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 16 [2018-11-06 21:49:12,325 INFO L134 CoverageAnalysis]: Checked inductivity of 3300 backedges. 1902 proven. 0 refuted. 0 times theorem prover too weak. 1398 trivial. 0 not checked. [2018-11-06 21:49:12,345 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 21:49:12,346 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2018-11-06 21:49:12,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-06 21:49:12,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-06 21:49:12,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-06 21:49:12,348 INFO L87 Difference]: Start difference. First operand 50808 states and 53206 transitions. Second operand 7 states. [2018-11-06 21:49:30,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:49:30,372 INFO L93 Difference]: Finished difference Result 116112 states and 122035 transitions. [2018-11-06 21:49:30,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-06 21:49:30,373 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1243 [2018-11-06 21:49:30,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:49:30,439 INFO L225 Difference]: With dead ends: 116112 [2018-11-06 21:49:30,439 INFO L226 Difference]: Without dead ends: 66157 [2018-11-06 21:49:30,468 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1265 GetRequests, 1251 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2018-11-06 21:49:30,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66157 states. [2018-11-06 21:49:31,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66157 to 56758. [2018-11-06 21:49:31,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56758 states. [2018-11-06 21:49:31,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56758 states to 56758 states and 59094 transitions. [2018-11-06 21:49:31,076 INFO L78 Accepts]: Start accepts. Automaton has 56758 states and 59094 transitions. Word has length 1243 [2018-11-06 21:49:31,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:49:31,077 INFO L480 AbstractCegarLoop]: Abstraction has 56758 states and 59094 transitions. [2018-11-06 21:49:31,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-06 21:49:31,077 INFO L276 IsEmpty]: Start isEmpty. Operand 56758 states and 59094 transitions. [2018-11-06 21:49:31,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1380 [2018-11-06 21:49:31,123 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 21:49:31,124 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 21:49:31,124 INFO L423 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 21:49:31,124 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 21:49:31,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1084048176, now seen corresponding path program 1 times [2018-11-06 21:49:31,125 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 21:49:31,125 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 21:49:31,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:49:31,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:49:31,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 21:49:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:49:35,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1965 backedges. 69 proven. 1813 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-11-06 21:49:35,296 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 21:49:35,296 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 21:49:35,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 21:49:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 21:49:35,646 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 21:49:36,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1965 backedges. 1151 proven. 0 refuted. 0 times theorem prover too weak. 814 trivial. 0 not checked. [2018-11-06 21:49:36,951 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 21:49:36,951 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2018-11-06 21:49:36,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-06 21:49:36,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-06 21:49:36,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2018-11-06 21:49:36,954 INFO L87 Difference]: Start difference. First operand 56758 states and 59094 transitions. Second operand 10 states. [2018-11-06 21:49:46,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 21:49:46,376 INFO L93 Difference]: Finished difference Result 150643 states and 157021 transitions. [2018-11-06 21:49:46,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-06 21:49:46,377 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1379 [2018-11-06 21:49:46,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 21:49:46,378 INFO L225 Difference]: With dead ends: 150643 [2018-11-06 21:49:46,378 INFO L226 Difference]: Without dead ends: 0 [2018-11-06 21:49:46,402 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1387 GetRequests, 1377 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2018-11-06 21:49:46,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-06 21:49:46,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-06 21:49:46,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-06 21:49:46,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-06 21:49:46,402 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1379 [2018-11-06 21:49:46,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 21:49:46,403 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-06 21:49:46,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-06 21:49:46,403 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-06 21:49:46,403 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-06 21:49:46,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-06 21:49:47,562 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:47,591 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:47,595 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:47,599 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:47,705 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:47,853 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:47,859 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:47,860 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:48,090 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:48,215 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:48,753 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:48,807 WARN L179 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 847 DAG size of output: 534 [2018-11-06 21:49:49,515 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:49,516 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:49,518 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:49,714 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:49,985 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:49,989 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:49,998 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:50,005 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:50,017 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:50,023 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:50,037 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:50,097 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:50,110 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:50,157 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:50,180 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:50,205 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:50,210 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:50,211 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:50,236 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:50,250 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:50,288 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:51,073 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:51,168 WARN L179 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 894 DAG size of output: 511 [2018-11-06 21:49:51,777 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:51,778 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:51,780 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:51,897 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:52,055 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:52,058 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:52,062 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:52,066 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:52,076 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:52,081 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:52,092 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:52,280 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:52,286 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:52,311 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:52,322 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:52,336 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:52,338 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:52,339 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:52,352 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:52,360 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:52,381 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:52,812 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 21:49:52,870 WARN L179 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 894 DAG size of output: 511 [2018-11-06 21:49:56,747 WARN L179 SmtUtils]: Spent 3.87 s on a formula simplification. DAG size of input: 522 DAG size of output: 126 [2018-11-06 21:49:59,604 WARN L179 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 494 DAG size of output: 126 Received shutdown request... [2018-11-06 21:50:02,286 WARN L187 SmtUtils]: Removed 21 from assertion stack [2018-11-06 21:50:02,286 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-11-06 21:50:02,288 INFO L168 Benchmark]: Toolchain (without parser) took 226758.91 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -460.2 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-11-06 21:50:02,289 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. [2018-11-06 21:50:02,290 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1726.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-11-06 21:50:02,291 INFO L168 Benchmark]: Boogie Procedure Inliner took 530.38 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 757.1 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -883.7 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. [2018-11-06 21:50:02,291 INFO L168 Benchmark]: Boogie Preprocessor took 362.21 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2018-11-06 21:50:02,292 INFO L168 Benchmark]: RCFGBuilder took 7795.26 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 487.9 MB). Peak memory consumption was 487.9 MB. Max. memory is 7.1 GB. [2018-11-06 21:50:02,293 INFO L168 Benchmark]: TraceAbstraction took 216339.24 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.6 GB in the beginning and 1.8 GB in the end (delta: -229.6 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-11-06 21:50:02,298 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 1726.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 530.38 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 757.1 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -883.7 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 362.21 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7795.26 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 487.9 MB). Peak memory consumption was 487.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 216339.24 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.6 GB in the beginning and 1.8 GB in the end (delta: -229.6 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 194]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 494. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown