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 --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/programs/real-life/GateControllerIncorrect1.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-9f4048f [2018-10-04 12:13:44,128 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 12:13:44,130 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 12:13:44,142 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 12:13:44,143 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 12:13:44,144 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 12:13:44,145 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 12:13:44,148 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 12:13:44,150 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 12:13:44,150 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 12:13:44,151 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-04 12:13:44,179 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-04 12:13:44,204 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 12:13:44,204 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 12:13:44,207 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 12:13:44,207 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 12:13:44,211 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 12:13:44,211 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 12:13:44,211 INFO L133 SettingsManager]: * Use SBE=true [2018-10-04 12:13:44,212 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 12:13:44,212 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 12:13:44,212 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 12:13:44,212 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 12:13:44,212 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 12:13:44,212 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 12:13:44,213 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 12:13:44,214 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 12:13:44,214 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 12:13:44,214 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 12:13:44,216 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 12:13:44,216 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 12:13:44,216 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-04 12:13:44,216 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 12:13:44,216 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-04 12:13:44,217 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-04 12:13:44,217 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 12:13:44,217 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 12:13:44,217 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 12:13:44,217 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-04 12:13:44,218 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 12:13:44,218 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 12:13:44,218 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 12:13:44,277 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 12:13:44,290 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 12:13:44,293 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 12:13:44,295 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 12:13:44,296 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 12:13:44,297 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/GateControllerIncorrect1.bpl [2018-10-04 12:13:44,297 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/GateControllerIncorrect1.bpl' [2018-10-04 12:13:44,347 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 12:13:44,348 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 12:13:44,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 12:13:44,350 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 12:13:44,350 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 12:13:44,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:13:44" (1/1) ... [2018-10-04 12:13:44,396 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:13:44" (1/1) ... [2018-10-04 12:13:44,401 WARN L165 Inliner]: Program contained no entry procedure! [2018-10-04 12:13:44,402 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-10-04 12:13:44,402 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-10-04 12:13:44,404 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 12:13:44,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 12:13:44,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 12:13:44,406 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 12:13:44,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:13:44" (1/1) ... [2018-10-04 12:13:44,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:13:44" (1/1) ... [2018-10-04 12:13:44,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:13:44" (1/1) ... [2018-10-04 12:13:44,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:13:44" (1/1) ... [2018-10-04 12:13:44,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:13:44" (1/1) ... [2018-10-04 12:13:44,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:13:44" (1/1) ... [2018-10-04 12:13:44,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:13:44" (1/1) ... [2018-10-04 12:13:44,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 12:13:44,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 12:13:44,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 12:13:44,431 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 12:13:44,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:13:44" (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 [2018-10-04 12:13:44,505 INFO L124 BoogieDeclarations]: Specification and implementation of procedure GateController given in one single declaration [2018-10-04 12:13:44,506 INFO L130 BoogieDeclarations]: Found specification of procedure GateController [2018-10-04 12:13:44,506 INFO L138 BoogieDeclarations]: Found implementation of procedure GateController [2018-10-04 12:13:44,807 INFO L338 CfgBuilder]: Using library mode [2018-10-04 12:13:44,807 INFO L202 PluginConnector]: Adding new model GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 12:13:44 BoogieIcfgContainer [2018-10-04 12:13:44,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 12:13:44,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-04 12:13:44,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-04 12:13:44,813 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-04 12:13:44,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:13:44" (1/2) ... [2018-10-04 12:13:44,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5144e100 and model type GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 12:13:44, skipping insertion in model container [2018-10-04 12:13:44,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 12:13:44" (2/2) ... [2018-10-04 12:13:44,817 INFO L112 eAbstractionObserver]: Analyzing ICFG GateControllerIncorrect1.bpl [2018-10-04 12:13:44,828 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-04 12:13:44,836 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-04 12:13:44,891 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-04 12:13:44,892 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-10-04 12:13:44,893 INFO L382 AbstractCegarLoop]: Hoare is true [2018-10-04 12:13:44,893 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-04 12:13:44,893 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-04 12:13:44,893 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-04 12:13:44,893 INFO L386 AbstractCegarLoop]: Difference is false [2018-10-04 12:13:44,894 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-04 12:13:44,894 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-04 12:13:44,913 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2018-10-04 12:13:44,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-10-04 12:13:44,927 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:13:44,928 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-10-04 12:13:44,930 INFO L423 AbstractCegarLoop]: === Iteration 1 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:13:44,938 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:13:44,938 INFO L82 PathProgramCache]: Analyzing trace with hash 30432, now seen corresponding path program 1 times [2018-10-04 12:13:44,941 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:13:44,942 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:13:44,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:44,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:13:44,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:13:45,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:13:45,101 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-04 12:13:45,101 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-04 12:13:45,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-04 12:13:45,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-04 12:13:45,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-04 12:13:45,123 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2018-10-04 12:13:45,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:13:45,183 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2018-10-04 12:13:45,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-04 12:13:45,185 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-10-04 12:13:45,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:13:45,197 INFO L225 Difference]: With dead ends: 19 [2018-10-04 12:13:45,197 INFO L226 Difference]: Without dead ends: 13 [2018-10-04 12:13:45,201 INFO L605 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 [2018-10-04 12:13:45,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-10-04 12:13:45,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 9. [2018-10-04 12:13:45,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-10-04 12:13:45,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2018-10-04 12:13:45,239 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 3 [2018-10-04 12:13:45,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:13:45,239 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-10-04 12:13:45,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-04 12:13:45,239 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-10-04 12:13:45,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-04 12:13:45,240 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:13:45,240 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-04 12:13:45,240 INFO L423 AbstractCegarLoop]: === Iteration 2 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:13:45,240 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:13:45,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1953617644, now seen corresponding path program 1 times [2018-10-04 12:13:45,241 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:13:45,241 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:13:45,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:45,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:13:45,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:13:45,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:13:45,437 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:13:45,437 INFO L227 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 [2018-10-04 12:13:45,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:13:45,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:13:45,475 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:13:45,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:13:45,880 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 12:13:45,880 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-10-04 12:13:45,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-04 12:13:45,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-04 12:13:45,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-10-04 12:13:45,882 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. Second operand 8 states. [2018-10-04 12:13:46,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:13:46,007 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2018-10-04 12:13:46,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-04 12:13:46,008 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2018-10-04 12:13:46,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:13:46,009 INFO L225 Difference]: With dead ends: 21 [2018-10-04 12:13:46,009 INFO L226 Difference]: Without dead ends: 19 [2018-10-04 12:13:46,010 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-10-04 12:13:46,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-10-04 12:13:46,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 14. [2018-10-04 12:13:46,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-10-04 12:13:46,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2018-10-04 12:13:46,015 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 18 transitions. Word has length 8 [2018-10-04 12:13:46,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:13:46,016 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 18 transitions. [2018-10-04 12:13:46,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-04 12:13:46,016 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2018-10-04 12:13:46,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-04 12:13:46,017 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:13:46,017 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-04 12:13:46,017 INFO L423 AbstractCegarLoop]: === Iteration 3 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:13:46,018 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:13:46,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1953558062, now seen corresponding path program 1 times [2018-10-04 12:13:46,018 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:13:46,018 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:13:46,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:46,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:13:46,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:13:46,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:13:46,069 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-04 12:13:46,069 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-04 12:13:46,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-04 12:13:46,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-04 12:13:46,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-04 12:13:46,070 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. Second operand 3 states. [2018-10-04 12:13:46,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:13:46,106 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2018-10-04 12:13:46,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-04 12:13:46,107 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-10-04 12:13:46,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:13:46,108 INFO L225 Difference]: With dead ends: 21 [2018-10-04 12:13:46,108 INFO L226 Difference]: Without dead ends: 14 [2018-10-04 12:13:46,109 INFO L605 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 [2018-10-04 12:13:46,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-10-04 12:13:46,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-10-04 12:13:46,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-10-04 12:13:46,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2018-10-04 12:13:46,114 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 8 [2018-10-04 12:13:46,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:13:46,114 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2018-10-04 12:13:46,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-04 12:13:46,115 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-10-04 12:13:46,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-04 12:13:46,115 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:13:46,115 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1] [2018-10-04 12:13:46,116 INFO L423 AbstractCegarLoop]: === Iteration 4 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:13:46,116 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:13:46,117 INFO L82 PathProgramCache]: Analyzing trace with hash 72785504, now seen corresponding path program 2 times [2018-10-04 12:13:46,117 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:13:46,117 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:13:46,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:46,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:13:46,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:46,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:13:46,494 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:13:46,495 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:13:46,495 INFO L227 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 [2018-10-04 12:13:46,507 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-04 12:13:46,540 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-04 12:13:46,540 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:13:46,543 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:13:46,755 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:13:46,776 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 12:13:46,776 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2018-10-04 12:13:46,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-04 12:13:46,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-04 12:13:46,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-10-04 12:13:46,778 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 12 states. [2018-10-04 12:13:46,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:13:46,959 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2018-10-04 12:13:46,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-04 12:13:46,959 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 13 [2018-10-04 12:13:46,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:13:46,960 INFO L225 Difference]: With dead ends: 25 [2018-10-04 12:13:46,960 INFO L226 Difference]: Without dead ends: 23 [2018-10-04 12:13:46,961 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-10-04 12:13:46,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-10-04 12:13:46,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2018-10-04 12:13:46,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-10-04 12:13:46,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2018-10-04 12:13:46,966 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 13 [2018-10-04 12:13:46,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:13:46,967 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2018-10-04 12:13:46,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-04 12:13:46,967 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2018-10-04 12:13:46,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-04 12:13:46,968 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:13:46,968 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1] [2018-10-04 12:13:46,969 INFO L423 AbstractCegarLoop]: === Iteration 5 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:13:46,969 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:13:46,969 INFO L82 PathProgramCache]: Analyzing trace with hash 491282284, now seen corresponding path program 3 times [2018-10-04 12:13:46,969 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:13:46,969 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:13:46,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:46,971 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 12:13:46,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:13:47,144 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:13:47,145 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:13:47,145 INFO L227 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 [2018-10-04 12:13:47,157 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-04 12:13:47,191 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-10-04 12:13:47,191 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:13:47,193 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:13:47,797 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:13:47,826 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 12:13:47,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2018-10-04 12:13:47,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-04 12:13:47,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-04 12:13:47,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2018-10-04 12:13:47,827 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 16 states. [2018-10-04 12:13:47,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:13:47,930 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2018-10-04 12:13:47,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-04 12:13:47,933 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 18 [2018-10-04 12:13:47,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:13:47,934 INFO L225 Difference]: With dead ends: 30 [2018-10-04 12:13:47,934 INFO L226 Difference]: Without dead ends: 28 [2018-10-04 12:13:47,935 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2018-10-04 12:13:47,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-10-04 12:13:47,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2018-10-04 12:13:47,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-10-04 12:13:47,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2018-10-04 12:13:47,941 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 18 [2018-10-04 12:13:47,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:13:47,941 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2018-10-04 12:13:47,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-04 12:13:47,942 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2018-10-04 12:13:47,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-04 12:13:47,942 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:13:47,943 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1] [2018-10-04 12:13:47,943 INFO L423 AbstractCegarLoop]: === Iteration 6 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:13:47,943 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:13:47,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1589732832, now seen corresponding path program 4 times [2018-10-04 12:13:47,943 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:13:47,944 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:13:47,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:47,945 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 12:13:47,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:47,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:13:48,144 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:13:48,144 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:13:48,145 INFO L227 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 [2018-10-04 12:13:48,155 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-10-04 12:13:48,172 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-10-04 12:13:48,172 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:13:48,174 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:13:48,484 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:13:48,507 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 12:13:48,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2018-10-04 12:13:48,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-04 12:13:48,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-04 12:13:48,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2018-10-04 12:13:48,508 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 20 states. [2018-10-04 12:13:48,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:13:48,819 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2018-10-04 12:13:48,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-04 12:13:48,819 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 23 [2018-10-04 12:13:48,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:13:48,821 INFO L225 Difference]: With dead ends: 35 [2018-10-04 12:13:48,821 INFO L226 Difference]: Without dead ends: 33 [2018-10-04 12:13:48,821 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2018-10-04 12:13:48,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-10-04 12:13:48,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2018-10-04 12:13:48,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-10-04 12:13:48,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2018-10-04 12:13:48,827 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 23 [2018-10-04 12:13:48,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:13:48,828 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2018-10-04 12:13:48,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-04 12:13:48,828 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2018-10-04 12:13:48,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-04 12:13:48,829 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:13:48,829 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 1, 1, 1] [2018-10-04 12:13:48,829 INFO L423 AbstractCegarLoop]: === Iteration 7 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:13:48,830 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:13:48,830 INFO L82 PathProgramCache]: Analyzing trace with hash 602818540, now seen corresponding path program 5 times [2018-10-04 12:13:48,830 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:13:48,830 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:13:48,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:48,832 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 12:13:48,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:13:49,160 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:13:49,160 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:13:49,160 INFO L227 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 [2018-10-04 12:13:49,177 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-10-04 12:13:49,193 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-10-04 12:13:49,194 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:13:49,200 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:13:49,938 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:13:49,959 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 12:13:49,959 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2018-10-04 12:13:49,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-10-04 12:13:49,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-10-04 12:13:49,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2018-10-04 12:13:49,960 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand 24 states. [2018-10-04 12:13:50,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:13:50,109 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2018-10-04 12:13:50,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-04 12:13:50,110 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 28 [2018-10-04 12:13:50,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:13:50,111 INFO L225 Difference]: With dead ends: 40 [2018-10-04 12:13:50,111 INFO L226 Difference]: Without dead ends: 38 [2018-10-04 12:13:50,111 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2018-10-04 12:13:50,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-10-04 12:13:50,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2018-10-04 12:13:50,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-04 12:13:50,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2018-10-04 12:13:50,118 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 28 [2018-10-04 12:13:50,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:13:50,118 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2018-10-04 12:13:50,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-10-04 12:13:50,119 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2018-10-04 12:13:50,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-04 12:13:50,120 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:13:50,120 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 1, 1, 1] [2018-10-04 12:13:50,120 INFO L423 AbstractCegarLoop]: === Iteration 8 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:13:50,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:13:50,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1979239776, now seen corresponding path program 6 times [2018-10-04 12:13:50,121 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:13:50,121 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:13:50,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:50,122 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 12:13:50,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:13:50,337 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:13:50,338 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:13:50,338 INFO L227 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 [2018-10-04 12:13:50,346 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-10-04 12:13:50,388 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2018-10-04 12:13:50,388 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:13:50,391 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:13:50,929 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:13:50,960 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 12:13:50,960 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2018-10-04 12:13:50,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-10-04 12:13:50,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-10-04 12:13:50,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=528, Unknown=0, NotChecked=0, Total=756 [2018-10-04 12:13:50,962 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand 28 states. [2018-10-04 12:13:51,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:13:51,159 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2018-10-04 12:13:51,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-04 12:13:51,161 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 33 [2018-10-04 12:13:51,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:13:51,162 INFO L225 Difference]: With dead ends: 45 [2018-10-04 12:13:51,162 INFO L226 Difference]: Without dead ends: 43 [2018-10-04 12:13:51,163 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=228, Invalid=528, Unknown=0, NotChecked=0, Total=756 [2018-10-04 12:13:51,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-10-04 12:13:51,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2018-10-04 12:13:51,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-04 12:13:51,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2018-10-04 12:13:51,169 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 33 [2018-10-04 12:13:51,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:13:51,170 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2018-10-04 12:13:51,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-10-04 12:13:51,170 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2018-10-04 12:13:51,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-04 12:13:51,171 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:13:51,172 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1] [2018-10-04 12:13:51,172 INFO L423 AbstractCegarLoop]: === Iteration 9 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:13:51,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:13:51,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1800695700, now seen corresponding path program 7 times [2018-10-04 12:13:51,173 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:13:51,173 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:13:51,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:51,174 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 12:13:51,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:13:51,553 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:13:51,553 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:13:51,553 INFO L227 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 [2018-10-04 12:13:51,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:13:51,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:13:51,577 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:13:52,084 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:13:52,106 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 12:13:52,107 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2018-10-04 12:13:52,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-10-04 12:13:52,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-10-04 12:13:52,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=699, Unknown=0, NotChecked=0, Total=992 [2018-10-04 12:13:52,109 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand 32 states. [2018-10-04 12:13:52,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:13:52,267 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2018-10-04 12:13:52,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-04 12:13:52,268 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 38 [2018-10-04 12:13:52,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:13:52,269 INFO L225 Difference]: With dead ends: 50 [2018-10-04 12:13:52,269 INFO L226 Difference]: Without dead ends: 48 [2018-10-04 12:13:52,271 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=293, Invalid=699, Unknown=0, NotChecked=0, Total=992 [2018-10-04 12:13:52,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-10-04 12:13:52,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2018-10-04 12:13:52,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-10-04 12:13:52,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2018-10-04 12:13:52,277 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 38 [2018-10-04 12:13:52,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:13:52,277 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2018-10-04 12:13:52,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-10-04 12:13:52,278 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2018-10-04 12:13:52,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-10-04 12:13:52,279 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:13:52,279 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1] [2018-10-04 12:13:52,279 INFO L423 AbstractCegarLoop]: === Iteration 10 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:13:52,279 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:13:52,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1430989600, now seen corresponding path program 8 times [2018-10-04 12:13:52,280 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:13:52,280 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:13:52,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:52,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:13:52,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:13:52,558 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:13:52,559 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:13:52,559 INFO L227 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 [2018-10-04 12:13:52,569 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-04 12:13:52,598 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-04 12:13:52,598 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:13:52,601 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:13:53,100 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:13:53,121 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 12:13:53,121 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 35 [2018-10-04 12:13:53,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-10-04 12:13:53,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-10-04 12:13:53,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=366, Invalid=894, Unknown=0, NotChecked=0, Total=1260 [2018-10-04 12:13:53,123 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand 36 states. [2018-10-04 12:13:53,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:13:53,357 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2018-10-04 12:13:53,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-04 12:13:53,358 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 43 [2018-10-04 12:13:53,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:13:53,359 INFO L225 Difference]: With dead ends: 55 [2018-10-04 12:13:53,359 INFO L226 Difference]: Without dead ends: 53 [2018-10-04 12:13:53,360 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=366, Invalid=894, Unknown=0, NotChecked=0, Total=1260 [2018-10-04 12:13:53,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-10-04 12:13:53,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2018-10-04 12:13:53,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-10-04 12:13:53,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2018-10-04 12:13:53,367 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 43 [2018-10-04 12:13:53,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:13:53,368 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2018-10-04 12:13:53,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-10-04 12:13:53,368 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2018-10-04 12:13:53,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-04 12:13:53,369 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:13:53,369 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 1, 1, 1] [2018-10-04 12:13:53,370 INFO L423 AbstractCegarLoop]: === Iteration 11 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:13:53,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:13:53,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1043842836, now seen corresponding path program 9 times [2018-10-04 12:13:53,370 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:13:53,370 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:13:53,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:53,371 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 12:13:53,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:13:53,625 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:13:53,626 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:13:53,626 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-04 12:13:53,635 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-04 12:13:53,660 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2018-10-04 12:13:53,661 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:13:53,665 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:13:54,262 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:13:54,283 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 12:13:54,283 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 39 [2018-10-04 12:13:54,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-10-04 12:13:54,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-10-04 12:13:54,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=447, Invalid=1113, Unknown=0, NotChecked=0, Total=1560 [2018-10-04 12:13:54,285 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand 40 states. [2018-10-04 12:13:54,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:13:54,605 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2018-10-04 12:13:54,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-04 12:13:54,605 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 48 [2018-10-04 12:13:54,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:13:54,606 INFO L225 Difference]: With dead ends: 60 [2018-10-04 12:13:54,606 INFO L226 Difference]: Without dead ends: 58 [2018-10-04 12:13:54,607 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 764 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=447, Invalid=1113, Unknown=0, NotChecked=0, Total=1560 [2018-10-04 12:13:54,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-10-04 12:13:54,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2018-10-04 12:13:54,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-10-04 12:13:54,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2018-10-04 12:13:54,613 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 48 [2018-10-04 12:13:54,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:13:54,614 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2018-10-04 12:13:54,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-10-04 12:13:54,614 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2018-10-04 12:13:54,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-10-04 12:13:54,615 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:13:54,615 INFO L375 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1] [2018-10-04 12:13:54,615 INFO L423 AbstractCegarLoop]: === Iteration 12 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:13:54,616 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:13:54,616 INFO L82 PathProgramCache]: Analyzing trace with hash -676496288, now seen corresponding path program 10 times [2018-10-04 12:13:54,616 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:13:54,616 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:13:54,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:54,617 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 12:13:54,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:13:55,079 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:13:55,079 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:13:55,079 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-04 12:13:55,093 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-10-04 12:13:55,127 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-10-04 12:13:55,128 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:13:55,131 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:13:55,909 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:13:55,929 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 12:13:55,930 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 43 [2018-10-04 12:13:55,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-10-04 12:13:55,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-10-04 12:13:55,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=536, Invalid=1356, Unknown=0, NotChecked=0, Total=1892 [2018-10-04 12:13:55,933 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand 44 states. [2018-10-04 12:13:56,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:13:56,284 INFO L93 Difference]: Finished difference Result 65 states and 77 transitions. [2018-10-04 12:13:56,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-04 12:13:56,284 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 53 [2018-10-04 12:13:56,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:13:56,285 INFO L225 Difference]: With dead ends: 65 [2018-10-04 12:13:56,285 INFO L226 Difference]: Without dead ends: 63 [2018-10-04 12:13:56,286 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 944 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=536, Invalid=1356, Unknown=0, NotChecked=0, Total=1892 [2018-10-04 12:13:56,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-10-04 12:13:56,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2018-10-04 12:13:56,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-10-04 12:13:56,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2018-10-04 12:13:56,292 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 53 [2018-10-04 12:13:56,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:13:56,293 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2018-10-04 12:13:56,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-10-04 12:13:56,293 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2018-10-04 12:13:56,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-10-04 12:13:56,294 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:13:56,294 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 1, 1, 1] [2018-10-04 12:13:56,294 INFO L423 AbstractCegarLoop]: === Iteration 13 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:13:56,294 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:13:56,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1014218388, now seen corresponding path program 11 times [2018-10-04 12:13:56,295 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:13:56,295 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:13:56,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:56,296 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 12:13:56,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:13:56,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-04 12:13:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-04 12:13:56,338 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-04 12:13:56,397 INFO L202 PluginConnector]: Adding new model GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 12:13:56 BoogieIcfgContainer [2018-10-04 12:13:56,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-04 12:13:56,398 INFO L168 Benchmark]: Toolchain (without parser) took 12051.09 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 40.9 MB). Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 426.4 MB). Peak memory consumption was 467.3 MB. Max. memory is 7.1 GB. [2018-10-04 12:13:56,407 INFO L168 Benchmark]: Boogie PL CUP Parser 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. [2018-10-04 12:13:56,407 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.52 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. [2018-10-04 12:13:56,408 INFO L168 Benchmark]: Boogie Preprocessor took 24.87 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. [2018-10-04 12:13:56,408 INFO L168 Benchmark]: RCFGBuilder took 376.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-04 12:13:56,412 INFO L168 Benchmark]: TraceAbstraction took 11588.49 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 40.9 MB). Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 405.3 MB). Peak memory consumption was 446.2 MB. Max. memory is 7.1 GB. [2018-10-04 12:13:56,416 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser 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. * Boogie Procedure Inliner took 55.52 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. * Boogie Preprocessor took 24.87 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. * RCFGBuilder took 376.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11588.49 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 40.9 MB). Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 405.3 MB). Peak memory consumption was 446.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 35]: assertion can be violated assertion can be violated We found a FailurePath: [L15] one := 1; [L16] maxGatePosition := 100 * one; [L17] thousand := 1000 * one; [L20] gate := 0; [L21] time := 0; [L22] alarm := false; VAL [alarm=false, gate=0, maxGatePosition=100, one=1, thousand=1000, time=0] [L24] COND TRUE time < thousand VAL [alarm=false, gate=0, maxGatePosition=100, one=1, thousand=1000, time=0] [L25] COND TRUE gate < maxGatePosition [L26] gate := gate + 1; VAL [alarm=false, gate=1, maxGatePosition=100, one=1, thousand=1000, time=0] [L28] havoc time_increment; VAL [alarm=false, gate=1, maxGatePosition=100, one=1, thousand=1000, time=0] [L29] COND FALSE !(time_increment > 99) VAL [alarm=false, gate=1, maxGatePosition=100, one=1, thousand=1000, time=0, time_increment=99] [L32] time := time + time_increment; VAL [alarm=false, gate=1, maxGatePosition=100, one=1, thousand=1000, time=99, time_increment=99] [L24] COND TRUE time < thousand VAL [alarm=false, gate=1, maxGatePosition=100, one=1, thousand=1000, time=99, time_increment=99] [L25] COND TRUE gate < maxGatePosition [L26] gate := gate + 1; VAL [alarm=false, gate=2, maxGatePosition=100, one=1, thousand=1000, time=99, time_increment=99] [L28] havoc time_increment; VAL [alarm=false, gate=2, maxGatePosition=100, one=1, thousand=1000, time=99] [L29] COND FALSE !(time_increment > 99) VAL [alarm=false, gate=2, maxGatePosition=100, one=1, thousand=1000, time=99, time_increment=99] [L32] time := time + time_increment; VAL [alarm=false, gate=2, maxGatePosition=100, one=1, thousand=1000, time=198, time_increment=99] [L24] COND TRUE time < thousand VAL [alarm=false, gate=2, maxGatePosition=100, one=1, thousand=1000, time=198, time_increment=99] [L25] COND TRUE gate < maxGatePosition [L26] gate := gate + 1; VAL [alarm=false, gate=3, maxGatePosition=100, one=1, thousand=1000, time=198, time_increment=99] [L28] havoc time_increment; VAL [alarm=false, gate=3, maxGatePosition=100, one=1, thousand=1000, time=198] [L29] COND FALSE !(time_increment > 99) VAL [alarm=false, gate=3, maxGatePosition=100, one=1, thousand=1000, time=198, time_increment=99] [L32] time := time + time_increment; VAL [alarm=false, gate=3, maxGatePosition=100, one=1, thousand=1000, time=297, time_increment=99] [L24] COND TRUE time < thousand VAL [alarm=false, gate=3, maxGatePosition=100, one=1, thousand=1000, time=297, time_increment=99] [L25] COND TRUE gate < maxGatePosition [L26] gate := gate + 1; VAL [alarm=false, gate=4, maxGatePosition=100, one=1, thousand=1000, time=297, time_increment=99] [L28] havoc time_increment; VAL [alarm=false, gate=4, maxGatePosition=100, one=1, thousand=1000, time=297] [L29] COND FALSE !(time_increment > 99) VAL [alarm=false, gate=4, maxGatePosition=100, one=1, thousand=1000, time=297, time_increment=99] [L32] time := time + time_increment; VAL [alarm=false, gate=4, maxGatePosition=100, one=1, thousand=1000, time=396, time_increment=99] [L24] COND TRUE time < thousand VAL [alarm=false, gate=4, maxGatePosition=100, one=1, thousand=1000, time=396, time_increment=99] [L25] COND TRUE gate < maxGatePosition [L26] gate := gate + 1; VAL [alarm=false, gate=5, maxGatePosition=100, one=1, thousand=1000, time=396, time_increment=99] [L28] havoc time_increment; VAL [alarm=false, gate=5, maxGatePosition=100, one=1, thousand=1000, time=396] [L29] COND FALSE !(time_increment > 99) VAL [alarm=false, gate=5, maxGatePosition=100, one=1, thousand=1000, time=396, time_increment=99] [L32] time := time + time_increment; VAL [alarm=false, gate=5, maxGatePosition=100, one=1, thousand=1000, time=495, time_increment=99] [L24] COND TRUE time < thousand VAL [alarm=false, gate=5, maxGatePosition=100, one=1, thousand=1000, time=495, time_increment=99] [L25] COND TRUE gate < maxGatePosition [L26] gate := gate + 1; VAL [alarm=false, gate=6, maxGatePosition=100, one=1, thousand=1000, time=495, time_increment=99] [L28] havoc time_increment; VAL [alarm=false, gate=6, maxGatePosition=100, one=1, thousand=1000, time=495] [L29] COND FALSE !(time_increment > 99) VAL [alarm=false, gate=6, maxGatePosition=100, one=1, thousand=1000, time=495, time_increment=99] [L32] time := time + time_increment; VAL [alarm=false, gate=6, maxGatePosition=100, one=1, thousand=1000, time=594, time_increment=99] [L24] COND TRUE time < thousand VAL [alarm=false, gate=6, maxGatePosition=100, one=1, thousand=1000, time=594, time_increment=99] [L25] COND TRUE gate < maxGatePosition [L26] gate := gate + 1; VAL [alarm=false, gate=7, maxGatePosition=100, one=1, thousand=1000, time=594, time_increment=99] [L28] havoc time_increment; VAL [alarm=false, gate=7, maxGatePosition=100, one=1, thousand=1000, time=594] [L29] COND FALSE !(time_increment > 99) VAL [alarm=false, gate=7, maxGatePosition=100, one=1, thousand=1000, time=594, time_increment=99] [L32] time := time + time_increment; VAL [alarm=false, gate=7, maxGatePosition=100, one=1, thousand=1000, time=693, time_increment=99] [L24] COND TRUE time < thousand VAL [alarm=false, gate=7, maxGatePosition=100, one=1, thousand=1000, time=693, time_increment=99] [L25] COND TRUE gate < maxGatePosition [L26] gate := gate + 1; VAL [alarm=false, gate=8, maxGatePosition=100, one=1, thousand=1000, time=693, time_increment=99] [L28] havoc time_increment; VAL [alarm=false, gate=8, maxGatePosition=100, one=1, thousand=1000, time=693] [L29] COND FALSE !(time_increment > 99) VAL [alarm=false, gate=8, maxGatePosition=100, one=1, thousand=1000, time=693, time_increment=99] [L32] time := time + time_increment; VAL [alarm=false, gate=8, maxGatePosition=100, one=1, thousand=1000, time=792, time_increment=99] [L24] COND TRUE time < thousand VAL [alarm=false, gate=8, maxGatePosition=100, one=1, thousand=1000, time=792, time_increment=99] [L25] COND TRUE gate < maxGatePosition [L26] gate := gate + 1; VAL [alarm=false, gate=9, maxGatePosition=100, one=1, thousand=1000, time=792, time_increment=99] [L28] havoc time_increment; VAL [alarm=false, gate=9, maxGatePosition=100, one=1, thousand=1000, time=792] [L29] COND FALSE !(time_increment > 99) VAL [alarm=false, gate=9, maxGatePosition=100, one=1, thousand=1000, time=792, time_increment=99] [L32] time := time + time_increment; VAL [alarm=false, gate=9, maxGatePosition=100, one=1, thousand=1000, time=891, time_increment=99] [L24] COND TRUE time < thousand VAL [alarm=false, gate=9, maxGatePosition=100, one=1, thousand=1000, time=891, time_increment=99] [L25] COND TRUE gate < maxGatePosition [L26] gate := gate + 1; VAL [alarm=false, gate=10, maxGatePosition=100, one=1, thousand=1000, time=891, time_increment=99] [L28] havoc time_increment; VAL [alarm=false, gate=10, maxGatePosition=100, one=1, thousand=1000, time=891] [L29] COND FALSE !(time_increment > 99) VAL [alarm=false, gate=10, maxGatePosition=100, one=1, thousand=1000, time=891, time_increment=99] [L32] time := time + time_increment; VAL [alarm=false, gate=10, maxGatePosition=100, one=1, thousand=1000, time=990, time_increment=99] [L24] COND TRUE time < thousand VAL [alarm=false, gate=10, maxGatePosition=100, one=1, thousand=1000, time=990, time_increment=99] [L25] COND TRUE gate < maxGatePosition [L26] gate := gate + 1; VAL [alarm=false, gate=11, maxGatePosition=100, one=1, thousand=1000, time=990, time_increment=99] [L28] havoc time_increment; VAL [alarm=false, gate=11, maxGatePosition=100, one=1, thousand=1000, time=990] [L29] COND FALSE !(time_increment > 99) VAL [alarm=false, gate=11, maxGatePosition=100, one=1, thousand=1000, time=990, time_increment=10] [L32] time := time + time_increment; VAL [alarm=false, gate=11, maxGatePosition=100, one=1, thousand=1000, time=1000, time_increment=10] [L24] COND FALSE !(time < thousand) VAL [alarm=false, gate=11, maxGatePosition=100, one=1, thousand=1000, time=1000, time_increment=10] [L35] assert alarm || gate == maxGatePosition; VAL [alarm=false, gate=11, maxGatePosition=100, one=1, thousand=1000, time=1000, time_increment=10] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. UNSAFE Result, 11.5s OverallTime, 13 OverallIterations, 11 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 125 SDtfs, 630 SDslu, 858 SDs, 0 SdLazy, 903 SolverSat, 105 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 429 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 242 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3620 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 45 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 679 NumberOfCodeBlocks, 679 NumberOfCodeBlocksAsserted, 50 NumberOfCheckSat, 599 ConstructedInterpolants, 285 QuantifiedInterpolants, 207721 SizeOfPredicates, 85 NumberOfNonLiveVariables, 600 ConjunctsInSsa, 150 ConjunctsInUnsatCore, 22 InterpolantComputations, 2 PerfectInterpolantSequences, 1/1761 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/GateControllerIncorrect1.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-10-04_12-13-56-429.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/GateControllerIncorrect1.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-04_12-13-56-429.csv Received shutdown request...