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 0.1.23-00a8621 [2018-09-30 10:14:28,829 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 10:14:28,831 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 10:14:28,844 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 10:14:28,845 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 10:14:28,846 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 10:14:28,847 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 10:14:28,849 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 10:14:28,851 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 10:14:28,852 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 10:14:28,853 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-30 10:14:28,881 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 [2018-09-30 10:14:28,898 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 10:14:28,898 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 10:14:28,899 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 10:14:28,899 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 10:14:28,900 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 10:14:28,900 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 10:14:28,900 INFO L133 SettingsManager]: * Use SBE=true [2018-09-30 10:14:28,901 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 10:14:28,901 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 10:14:28,901 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 10:14:28,901 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 10:14:28,902 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 10:14:28,902 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 10:14:28,902 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 10:14:28,902 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 10:14:28,902 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 10:14:28,903 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 10:14:28,903 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 10:14:28,903 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 10:14:28,903 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-30 10:14:28,904 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 10:14:28,904 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-30 10:14:28,904 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-30 10:14:28,904 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 10:14:28,905 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 10:14:28,905 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 10:14:28,905 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-30 10:14:28,905 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 10:14:28,905 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 10:14:28,906 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 10:14:28,957 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 10:14:28,977 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 10:14:28,983 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 10:14:28,985 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 10:14:28,985 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 10:14:28,986 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/GateControllerIncorrect1.bpl [2018-09-30 10:14:28,987 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/GateControllerIncorrect1.bpl' [2018-09-30 10:14:29,048 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 10:14:29,052 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 10:14:29,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 10:14:29,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 10:14:29,054 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 10:14:29,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:14:29" (1/1) ... [2018-09-30 10:14:29,094 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:14:29" (1/1) ... [2018-09-30 10:14:29,099 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-30 10:14:29,099 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-30 10:14:29,100 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-30 10:14:29,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 10:14:29,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 10:14:29,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 10:14:29,105 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 10:14:29,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:14:29" (1/1) ... [2018-09-30 10:14:29,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:14:29" (1/1) ... [2018-09-30 10:14:29,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:14:29" (1/1) ... [2018-09-30 10:14:29,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:14:29" (1/1) ... [2018-09-30 10:14:29,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:14:29" (1/1) ... [2018-09-30 10:14:29,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:14:29" (1/1) ... [2018-09-30 10:14:29,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:14:29" (1/1) ... [2018-09-30 10:14:29,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 10:14:29,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 10:14:29,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 10:14:29,137 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 10:14:29,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:14:29" (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 [2018-09-30 10:14:29,211 INFO L124 BoogieDeclarations]: Specification and implementation of procedure GateController given in one single declaration [2018-09-30 10:14:29,211 INFO L130 BoogieDeclarations]: Found specification of procedure GateController [2018-09-30 10:14:29,212 INFO L138 BoogieDeclarations]: Found implementation of procedure GateController [2018-09-30 10:14:29,478 INFO L345 CfgBuilder]: Using library mode [2018-09-30 10:14:29,479 INFO L202 PluginConnector]: Adding new model GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 10:14:29 BoogieIcfgContainer [2018-09-30 10:14:29,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 10:14:29,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-30 10:14:29,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-30 10:14:29,484 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-30 10:14:29,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:14:29" (1/2) ... [2018-09-30 10:14:29,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197674b1 and model type GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.09 10:14:29, skipping insertion in model container [2018-09-30 10:14:29,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 10:14:29" (2/2) ... [2018-09-30 10:14:29,488 INFO L112 eAbstractionObserver]: Analyzing ICFG GateControllerIncorrect1.bpl [2018-09-30 10:14:29,499 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-30 10:14:29,508 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-30 10:14:29,562 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-30 10:14:29,563 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-30 10:14:29,563 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-30 10:14:29,563 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-30 10:14:29,563 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-30 10:14:29,564 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-30 10:14:29,564 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-30 10:14:29,564 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-30 10:14:29,564 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-30 10:14:29,581 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2018-09-30 10:14:29,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-30 10:14:29,588 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:14:29,589 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-09-30 10:14:29,591 INFO L423 AbstractCegarLoop]: === Iteration 1 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:14:29,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:14:29,598 INFO L82 PathProgramCache]: Analyzing trace with hash 30432, now seen corresponding path program 1 times [2018-09-30 10:14:29,601 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:14:29,601 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:14:29,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:29,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:14:29,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:14:29,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:14:29,818 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:14:29,818 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 10:14:29,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:14:29,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:14:29,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:14:29,843 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2018-09-30 10:14:29,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:14:29,898 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2018-09-30 10:14:29,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:14:29,901 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-09-30 10:14:29,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:14:29,912 INFO L225 Difference]: With dead ends: 19 [2018-09-30 10:14:29,913 INFO L226 Difference]: Without dead ends: 13 [2018-09-30 10:14:29,916 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 [2018-09-30 10:14:29,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-09-30 10:14:29,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 9. [2018-09-30 10:14:29,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-09-30 10:14:29,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2018-09-30 10:14:29,957 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 3 [2018-09-30 10:14:29,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:14:29,957 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-09-30 10:14:29,957 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:14:29,957 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-09-30 10:14:29,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-30 10:14:29,958 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:14:29,958 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:14:29,958 INFO L423 AbstractCegarLoop]: === Iteration 2 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:14:29,959 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:14:29,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1953617644, now seen corresponding path program 1 times [2018-09-30 10:14:29,959 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:14:29,959 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:14:29,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:29,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:14:29,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:14:30,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:14:30,233 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:14:30,233 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 [2018-09-30 10:14:30,256 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:14:30,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:14:30,297 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:14:30,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:14:30,596 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:14:30,596 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-09-30 10:14:30,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-30 10:14:30,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-30 10:14:30,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-09-30 10:14:30,598 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. Second operand 8 states. [2018-09-30 10:14:30,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:14:30,695 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2018-09-30 10:14:30,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-30 10:14:30,697 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2018-09-30 10:14:30,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:14:30,698 INFO L225 Difference]: With dead ends: 21 [2018-09-30 10:14:30,698 INFO L226 Difference]: Without dead ends: 19 [2018-09-30 10:14:30,701 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 [2018-09-30 10:14:30,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-09-30 10:14:30,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 14. [2018-09-30 10:14:30,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-30 10:14:30,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2018-09-30 10:14:30,707 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 18 transitions. Word has length 8 [2018-09-30 10:14:30,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:14:30,709 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 18 transitions. [2018-09-30 10:14:30,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-30 10:14:30,709 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2018-09-30 10:14:30,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-30 10:14:30,710 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:14:30,710 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:14:30,711 INFO L423 AbstractCegarLoop]: === Iteration 3 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:14:30,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:14:30,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1953558062, now seen corresponding path program 1 times [2018-09-30 10:14:30,712 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:14:30,712 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:14:30,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:30,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:14:30,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:14:30,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:14:30,767 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:14:30,768 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 10:14:30,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:14:30,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:14:30,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:14:30,769 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. Second operand 3 states. [2018-09-30 10:14:30,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:14:30,787 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2018-09-30 10:14:30,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:14:30,788 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-09-30 10:14:30,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:14:30,789 INFO L225 Difference]: With dead ends: 21 [2018-09-30 10:14:30,789 INFO L226 Difference]: Without dead ends: 14 [2018-09-30 10:14:30,790 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 [2018-09-30 10:14:30,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-09-30 10:14:30,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-09-30 10:14:30,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-30 10:14:30,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2018-09-30 10:14:30,795 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 8 [2018-09-30 10:14:30,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:14:30,795 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2018-09-30 10:14:30,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:14:30,796 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-09-30 10:14:30,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-30 10:14:30,796 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:14:30,797 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1] [2018-09-30 10:14:30,797 INFO L423 AbstractCegarLoop]: === Iteration 4 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:14:30,797 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:14:30,797 INFO L82 PathProgramCache]: Analyzing trace with hash 72785504, now seen corresponding path program 2 times [2018-09-30 10:14:30,798 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:14:30,798 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:14:30,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:30,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:14:30,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:30,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:14:30,987 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:14:30,988 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:14:30,988 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 [2018-09-30 10:14:30,997 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-30 10:14:31,036 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-30 10:14:31,036 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-30 10:14:31,038 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:14:31,389 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:14:31,411 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:14:31,411 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2018-09-30 10:14:31,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-30 10:14:31,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-30 10:14:31,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-09-30 10:14:31,413 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 12 states. [2018-09-30 10:14:31,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:14:31,579 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2018-09-30 10:14:31,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-30 10:14:31,580 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 13 [2018-09-30 10:14:31,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:14:31,581 INFO L225 Difference]: With dead ends: 25 [2018-09-30 10:14:31,581 INFO L226 Difference]: Without dead ends: 23 [2018-09-30 10:14:31,583 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 [2018-09-30 10:14:31,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-09-30 10:14:31,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2018-09-30 10:14:31,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-09-30 10:14:31,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2018-09-30 10:14:31,589 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 13 [2018-09-30 10:14:31,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:14:31,589 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2018-09-30 10:14:31,589 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-30 10:14:31,589 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2018-09-30 10:14:31,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-30 10:14:31,590 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:14:31,590 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1] [2018-09-30 10:14:31,591 INFO L423 AbstractCegarLoop]: === Iteration 5 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:14:31,591 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:14:31,591 INFO L82 PathProgramCache]: Analyzing trace with hash 491282284, now seen corresponding path program 3 times [2018-09-30 10:14:31,591 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:14:31,591 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:14:31,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:31,593 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-30 10:14:31,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:14:31,754 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:14:31,754 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:14:31,754 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 [2018-09-30 10:14:31,763 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-30 10:14:31,801 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-09-30 10:14:31,802 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-30 10:14:31,804 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:14:32,409 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:14:32,438 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:14:32,438 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2018-09-30 10:14:32,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-30 10:14:32,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-30 10:14:32,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2018-09-30 10:14:32,440 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 16 states. [2018-09-30 10:14:32,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:14:32,573 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2018-09-30 10:14:32,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-30 10:14:32,578 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 18 [2018-09-30 10:14:32,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:14:32,579 INFO L225 Difference]: With dead ends: 30 [2018-09-30 10:14:32,579 INFO L226 Difference]: Without dead ends: 28 [2018-09-30 10:14:32,580 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 [2018-09-30 10:14:32,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-09-30 10:14:32,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2018-09-30 10:14:32,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-09-30 10:14:32,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2018-09-30 10:14:32,585 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 18 [2018-09-30 10:14:32,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:14:32,586 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2018-09-30 10:14:32,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-30 10:14:32,586 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2018-09-30 10:14:32,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-30 10:14:32,587 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:14:32,587 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1] [2018-09-30 10:14:32,587 INFO L423 AbstractCegarLoop]: === Iteration 6 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:14:32,587 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:14:32,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1589732832, now seen corresponding path program 4 times [2018-09-30 10:14:32,587 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:14:32,588 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:14:32,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:32,588 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-30 10:14:32,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:14:32,827 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:14:32,827 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:14:32,828 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 [2018-09-30 10:14:32,836 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-30 10:14:32,847 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-30 10:14:32,847 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-30 10:14:32,849 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:14:33,169 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:14:33,190 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:14:33,191 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2018-09-30 10:14:33,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-30 10:14:33,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-30 10:14:33,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2018-09-30 10:14:33,192 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 20 states. [2018-09-30 10:14:33,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:14:33,547 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2018-09-30 10:14:33,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-30 10:14:33,547 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 23 [2018-09-30 10:14:33,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:14:33,548 INFO L225 Difference]: With dead ends: 35 [2018-09-30 10:14:33,549 INFO L226 Difference]: Without dead ends: 33 [2018-09-30 10:14:33,549 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2018-09-30 10:14:33,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-09-30 10:14:33,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2018-09-30 10:14:33,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-09-30 10:14:33,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2018-09-30 10:14:33,555 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 23 [2018-09-30 10:14:33,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:14:33,555 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2018-09-30 10:14:33,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-09-30 10:14:33,556 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2018-09-30 10:14:33,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-30 10:14:33,557 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:14:33,557 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 1, 1, 1] [2018-09-30 10:14:33,557 INFO L423 AbstractCegarLoop]: === Iteration 7 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:14:33,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:14:33,558 INFO L82 PathProgramCache]: Analyzing trace with hash 602818540, now seen corresponding path program 5 times [2018-09-30 10:14:33,558 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:14:33,558 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:14:33,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:33,559 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-30 10:14:33,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:14:33,880 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:14:33,881 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:14:33,881 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 [2018-09-30 10:14:33,889 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-09-30 10:14:33,903 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-09-30 10:14:33,904 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-30 10:14:33,907 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:14:34,330 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-30 10:14:34,589 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:14:34,618 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:14:34,618 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2018-09-30 10:14:34,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-09-30 10:14:34,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-09-30 10:14:34,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2018-09-30 10:14:34,619 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand 24 states. [2018-09-30 10:14:34,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:14:34,762 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2018-09-30 10:14:34,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-30 10:14:34,763 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 28 [2018-09-30 10:14:34,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:14:34,764 INFO L225 Difference]: With dead ends: 40 [2018-09-30 10:14:34,765 INFO L226 Difference]: Without dead ends: 38 [2018-09-30 10:14:34,765 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2018-09-30 10:14:34,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-09-30 10:14:34,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2018-09-30 10:14:34,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-09-30 10:14:34,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2018-09-30 10:14:34,772 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 28 [2018-09-30 10:14:34,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:14:34,772 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2018-09-30 10:14:34,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-09-30 10:14:34,772 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2018-09-30 10:14:34,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-09-30 10:14:34,774 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:14:34,774 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 1, 1, 1] [2018-09-30 10:14:34,774 INFO L423 AbstractCegarLoop]: === Iteration 8 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:14:34,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:14:34,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1979239776, now seen corresponding path program 6 times [2018-09-30 10:14:34,775 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:14:34,775 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:14:34,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:34,776 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-30 10:14:34,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:14:34,999 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:14:35,000 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:14:35,000 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 [2018-09-30 10:14:35,009 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-09-30 10:14:35,038 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2018-09-30 10:14:35,039 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-30 10:14:35,041 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:14:35,616 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:14:35,647 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:14:35,647 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2018-09-30 10:14:35,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-09-30 10:14:35,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-09-30 10:14:35,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=528, Unknown=0, NotChecked=0, Total=756 [2018-09-30 10:14:35,652 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand 28 states. [2018-09-30 10:14:35,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:14:35,835 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2018-09-30 10:14:35,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-30 10:14:35,838 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 33 [2018-09-30 10:14:35,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:14:35,839 INFO L225 Difference]: With dead ends: 45 [2018-09-30 10:14:35,839 INFO L226 Difference]: Without dead ends: 43 [2018-09-30 10:14:35,840 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 [2018-09-30 10:14:35,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-09-30 10:14:35,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2018-09-30 10:14:35,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-09-30 10:14:35,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2018-09-30 10:14:35,846 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 33 [2018-09-30 10:14:35,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:14:35,847 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2018-09-30 10:14:35,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-09-30 10:14:35,847 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2018-09-30 10:14:35,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-30 10:14:35,848 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:14:35,849 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1] [2018-09-30 10:14:35,849 INFO L423 AbstractCegarLoop]: === Iteration 9 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:14:35,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:14:35,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1800695700, now seen corresponding path program 7 times [2018-09-30 10:14:35,850 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:14:35,850 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:14:35,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:35,851 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-30 10:14:35,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:14:36,205 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:14:36,205 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:14:36,205 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 [2018-09-30 10:14:36,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:14:36,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:14:36,228 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:14:36,767 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:14:36,789 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:14:36,789 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2018-09-30 10:14:36,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-09-30 10:14:36,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-09-30 10:14:36,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=699, Unknown=0, NotChecked=0, Total=992 [2018-09-30 10:14:36,791 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand 32 states. [2018-09-30 10:14:36,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:14:36,979 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2018-09-30 10:14:36,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-30 10:14:36,980 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 38 [2018-09-30 10:14:36,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:14:36,982 INFO L225 Difference]: With dead ends: 50 [2018-09-30 10:14:36,982 INFO L226 Difference]: Without dead ends: 48 [2018-09-30 10:14:36,983 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 [2018-09-30 10:14:36,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-09-30 10:14:36,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2018-09-30 10:14:36,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-09-30 10:14:36,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2018-09-30 10:14:36,989 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 38 [2018-09-30 10:14:36,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:14:36,990 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2018-09-30 10:14:36,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-09-30 10:14:36,990 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2018-09-30 10:14:36,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-30 10:14:36,991 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:14:36,991 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1] [2018-09-30 10:14:36,991 INFO L423 AbstractCegarLoop]: === Iteration 10 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:14:36,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:14:36,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1430989600, now seen corresponding path program 8 times [2018-09-30 10:14:36,992 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:14:36,992 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:14:36,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:36,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:14:36,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:14:37,253 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:14:37,254 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:14:37,254 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 [2018-09-30 10:14:37,266 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-30 10:14:37,295 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-30 10:14:37,296 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-30 10:14:37,299 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:14:38,024 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:14:38,045 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:14:38,045 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 35 [2018-09-30 10:14:38,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-09-30 10:14:38,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-09-30 10:14:38,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=366, Invalid=894, Unknown=0, NotChecked=0, Total=1260 [2018-09-30 10:14:38,048 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand 36 states. [2018-09-30 10:14:38,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:14:38,314 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2018-09-30 10:14:38,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-30 10:14:38,314 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 43 [2018-09-30 10:14:38,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:14:38,316 INFO L225 Difference]: With dead ends: 55 [2018-09-30 10:14:38,316 INFO L226 Difference]: Without dead ends: 53 [2018-09-30 10:14:38,317 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=366, Invalid=894, Unknown=0, NotChecked=0, Total=1260 [2018-09-30 10:14:38,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-09-30 10:14:38,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2018-09-30 10:14:38,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-09-30 10:14:38,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2018-09-30 10:14:38,326 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 43 [2018-09-30 10:14:38,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:14:38,327 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2018-09-30 10:14:38,327 INFO L481 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-09-30 10:14:38,327 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2018-09-30 10:14:38,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-30 10:14:38,329 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:14:38,329 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 1, 1, 1] [2018-09-30 10:14:38,329 INFO L423 AbstractCegarLoop]: === Iteration 11 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:14:38,329 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:14:38,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1043842836, now seen corresponding path program 9 times [2018-09-30 10:14:38,330 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:14:38,330 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:14:38,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:38,331 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-30 10:14:38,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:14:38,603 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:14:38,604 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:14:38,604 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 [2018-09-30 10:14:38,614 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-30 10:14:38,638 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2018-09-30 10:14:38,638 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-30 10:14:38,641 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:14:39,949 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-30 10:14:40,379 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:14:40,400 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:14:40,400 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 39 [2018-09-30 10:14:40,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-09-30 10:14:40,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-09-30 10:14:40,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=447, Invalid=1113, Unknown=0, NotChecked=0, Total=1560 [2018-09-30 10:14:40,402 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand 40 states. [2018-09-30 10:14:40,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:14:40,671 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2018-09-30 10:14:40,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-30 10:14:40,672 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 48 [2018-09-30 10:14:40,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:14:40,673 INFO L225 Difference]: With dead ends: 60 [2018-09-30 10:14:40,673 INFO L226 Difference]: Without dead ends: 58 [2018-09-30 10:14:40,674 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 764 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=447, Invalid=1113, Unknown=0, NotChecked=0, Total=1560 [2018-09-30 10:14:40,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-09-30 10:14:40,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2018-09-30 10:14:40,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-09-30 10:14:40,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2018-09-30 10:14:40,680 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 48 [2018-09-30 10:14:40,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:14:40,680 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2018-09-30 10:14:40,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-09-30 10:14:40,680 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2018-09-30 10:14:40,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-09-30 10:14:40,682 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:14:40,682 INFO L375 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1] [2018-09-30 10:14:40,683 INFO L423 AbstractCegarLoop]: === Iteration 12 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:14:40,683 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:14:40,683 INFO L82 PathProgramCache]: Analyzing trace with hash -676496288, now seen corresponding path program 10 times [2018-09-30 10:14:40,683 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:14:40,683 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:14:40,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:40,685 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-30 10:14:40,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:14:41,007 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:14:41,008 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:14:41,008 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 [2018-09-30 10:14:41,017 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-30 10:14:41,055 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-30 10:14:41,056 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-30 10:14:41,059 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:14:41,720 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:14:41,740 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:14:41,741 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 43 [2018-09-30 10:14:41,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-09-30 10:14:41,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-09-30 10:14:41,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=536, Invalid=1356, Unknown=0, NotChecked=0, Total=1892 [2018-09-30 10:14:41,746 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand 44 states. [2018-09-30 10:14:42,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:14:42,060 INFO L93 Difference]: Finished difference Result 65 states and 77 transitions. [2018-09-30 10:14:42,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-30 10:14:42,061 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 53 [2018-09-30 10:14:42,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:14:42,062 INFO L225 Difference]: With dead ends: 65 [2018-09-30 10:14:42,062 INFO L226 Difference]: Without dead ends: 63 [2018-09-30 10:14:42,063 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 944 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=536, Invalid=1356, Unknown=0, NotChecked=0, Total=1892 [2018-09-30 10:14:42,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-30 10:14:42,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2018-09-30 10:14:42,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-09-30 10:14:42,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2018-09-30 10:14:42,069 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 53 [2018-09-30 10:14:42,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:14:42,070 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2018-09-30 10:14:42,070 INFO L481 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-09-30 10:14:42,070 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2018-09-30 10:14:42,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-30 10:14:42,071 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:14:42,071 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 1, 1, 1] [2018-09-30 10:14:42,071 INFO L423 AbstractCegarLoop]: === Iteration 13 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:14:42,071 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:14:42,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1014218388, now seen corresponding path program 11 times [2018-09-30 10:14:42,072 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:14:42,072 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:14:42,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:42,075 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-30 10:14:42,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:14:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-30 10:14:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-30 10:14:42,118 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-09-30 10:14:42,154 INFO L202 PluginConnector]: Adding new model GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.09 10:14:42 BoogieIcfgContainer [2018-09-30 10:14:42,154 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-30 10:14:42,155 INFO L168 Benchmark]: Toolchain (without parser) took 13105.91 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 38.3 MB). Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 439.7 MB). Peak memory consumption was 478.0 MB. Max. memory is 7.1 GB. [2018-09-30 10:14:42,156 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 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. [2018-09-30 10:14:42,157 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.47 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. [2018-09-30 10:14:42,157 INFO L168 Benchmark]: Boogie Preprocessor took 32.12 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. [2018-09-30 10:14:42,158 INFO L168 Benchmark]: RCFGBuilder took 343.29 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. [2018-09-30 10:14:42,158 INFO L168 Benchmark]: TraceAbstraction took 12673.54 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 38.3 MB). Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 418.6 MB). Peak memory consumption was 456.9 MB. Max. memory is 7.1 GB. [2018-09-30 10:14:42,162 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 0.22 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 49.47 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 32.12 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 343.29 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 12673.54 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 38.3 MB). Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 418.6 MB). Peak memory consumption was 456.9 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, 12.6s 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, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 429 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 242 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3620 ImplicationChecksByTransitivity, 8.0s 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, 9.1s 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-0-2018-09-30_10-14-42-174.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/GateControllerIncorrect1.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-30_10-14-42-174.csv Received shutdown request...