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-bd42740 [2018-09-23 21:17:17,976 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-23 21:17:17,978 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-23 21:17:17,991 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-23 21:17:17,991 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-23 21:17:17,992 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-23 21:17:17,994 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-23 21:17:17,996 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-23 21:17:17,998 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-23 21:17:17,999 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-23 21:17:18,000 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-23 21:17:18,028 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 [2018-09-23 21:17:18,044 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-23 21:17:18,045 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-23 21:17:18,046 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-23 21:17:18,046 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-23 21:17:18,047 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-23 21:17:18,047 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-23 21:17:18,047 INFO L133 SettingsManager]: * Use SBE=true [2018-09-23 21:17:18,047 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-23 21:17:18,048 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-23 21:17:18,048 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-23 21:17:18,048 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-23 21:17:18,048 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-23 21:17:18,048 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-23 21:17:18,049 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-23 21:17:18,049 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-23 21:17:18,049 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-23 21:17:18,049 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-23 21:17:18,050 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-23 21:17:18,050 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-23 21:17:18,050 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-23 21:17:18,050 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-23 21:17:18,051 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-23 21:17:18,051 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-23 21:17:18,051 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-23 21:17:18,051 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-23 21:17:18,051 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-23 21:17:18,052 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-23 21:17:18,052 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-23 21:17:18,052 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-23 21:17:18,052 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-23 21:17:18,121 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-23 21:17:18,141 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-23 21:17:18,147 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-23 21:17:18,149 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-23 21:17:18,150 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-23 21:17:18,151 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/GateControllerIncorrect1.bpl [2018-09-23 21:17:18,152 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/GateControllerIncorrect1.bpl' [2018-09-23 21:17:18,202 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-23 21:17:18,206 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-23 21:17:18,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-23 21:17:18,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-23 21:17:18,208 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-23 21:17:18,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:17:18" (1/1) ... [2018-09-23 21:17:18,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:17:18" (1/1) ... [2018-09-23 21:17:18,249 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-23 21:17:18,249 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-23 21:17:18,249 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-23 21:17:18,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-23 21:17:18,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-23 21:17:18,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-23 21:17:18,253 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-23 21:17:18,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:17:18" (1/1) ... [2018-09-23 21:17:18,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:17:18" (1/1) ... [2018-09-23 21:17:18,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:17:18" (1/1) ... [2018-09-23 21:17:18,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:17:18" (1/1) ... [2018-09-23 21:17:18,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:17:18" (1/1) ... [2018-09-23 21:17:18,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:17:18" (1/1) ... [2018-09-23 21:17:18,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:17:18" (1/1) ... [2018-09-23 21:17:18,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-23 21:17:18,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-23 21:17:18,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-23 21:17:18,278 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-23 21:17:18,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:17:18" (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 [2018-09-23 21:17:18,362 INFO L124 BoogieDeclarations]: Specification and implementation of procedure GateController given in one single declaration [2018-09-23 21:17:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure GateController [2018-09-23 21:17:18,363 INFO L138 BoogieDeclarations]: Found implementation of procedure GateController [2018-09-23 21:17:18,566 INFO L351 CfgBuilder]: Using library mode [2018-09-23 21:17:18,567 INFO L202 PluginConnector]: Adding new model GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 09:17:18 BoogieIcfgContainer [2018-09-23 21:17:18,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-23 21:17:18,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-23 21:17:18,568 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-23 21:17:18,571 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-23 21:17:18,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:17:18" (1/2) ... [2018-09-23 21:17:18,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51396c25 and model type GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 09:17:18, skipping insertion in model container [2018-09-23 21:17:18,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 09:17:18" (2/2) ... [2018-09-23 21:17:18,575 INFO L112 eAbstractionObserver]: Analyzing ICFG GateControllerIncorrect1.bpl [2018-09-23 21:17:18,585 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-23 21:17:18,594 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-23 21:17:18,648 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-23 21:17:18,649 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-23 21:17:18,649 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-23 21:17:18,649 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-23 21:17:18,649 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-23 21:17:18,650 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-23 21:17:18,650 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-23 21:17:18,650 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-23 21:17:18,650 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-23 21:17:18,666 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2018-09-23 21:17:18,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-23 21:17:18,673 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:17:18,674 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-09-23 21:17:18,675 INFO L423 AbstractCegarLoop]: === Iteration 1 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:17:18,681 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:17:18,682 INFO L82 PathProgramCache]: Analyzing trace with hash 30432, now seen corresponding path program 1 times [2018-09-23 21:17:18,684 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:17:18,685 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:17:18,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:18,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:17:18,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:17:18,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:17:18,822 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:17:18,822 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-23 21:17:18,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-23 21:17:18,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-23 21:17:18,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:17:18,844 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2018-09-23 21:17:18,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:17:18,909 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2018-09-23 21:17:18,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-23 21:17:18,911 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-09-23 21:17:18,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:17:18,922 INFO L225 Difference]: With dead ends: 19 [2018-09-23 21:17:18,922 INFO L226 Difference]: Without dead ends: 13 [2018-09-23 21:17:18,925 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 [2018-09-23 21:17:18,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-09-23 21:17:18,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 9. [2018-09-23 21:17:18,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-09-23 21:17:18,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2018-09-23 21:17:18,958 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 3 [2018-09-23 21:17:18,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:17:18,959 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-09-23 21:17:18,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-23 21:17:18,959 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-09-23 21:17:18,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-23 21:17:18,959 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:17:18,959 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-09-23 21:17:18,960 INFO L423 AbstractCegarLoop]: === Iteration 2 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:17:18,960 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:17:18,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1953617644, now seen corresponding path program 1 times [2018-09-23 21:17:18,960 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:17:18,961 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:17:18,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:18,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:17:18,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:17:19,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:17:19,176 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:17:19,176 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 [2018-09-23 21:17:19,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:17:19,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:17:19,225 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:17:19,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:17:19,484 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:17:19,484 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-09-23 21:17:19,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-23 21:17:19,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-23 21:17:19,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-09-23 21:17:19,486 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. Second operand 8 states. [2018-09-23 21:17:19,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:17:19,604 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2018-09-23 21:17:19,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-23 21:17:19,606 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2018-09-23 21:17:19,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:17:19,607 INFO L225 Difference]: With dead ends: 21 [2018-09-23 21:17:19,609 INFO L226 Difference]: Without dead ends: 19 [2018-09-23 21:17:19,610 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-09-23 21:17:19,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-09-23 21:17:19,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 14. [2018-09-23 21:17:19,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-23 21:17:19,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2018-09-23 21:17:19,617 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 18 transitions. Word has length 8 [2018-09-23 21:17:19,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:17:19,618 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 18 transitions. [2018-09-23 21:17:19,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-23 21:17:19,618 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2018-09-23 21:17:19,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-23 21:17:19,619 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:17:19,619 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-09-23 21:17:19,621 INFO L423 AbstractCegarLoop]: === Iteration 3 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:17:19,621 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:17:19,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1953558062, now seen corresponding path program 1 times [2018-09-23 21:17:19,622 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:17:19,622 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:17:19,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:19,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:17:19,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:17:19,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:17:19,661 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:17:19,661 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-23 21:17:19,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-23 21:17:19,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-23 21:17:19,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:17:19,662 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. Second operand 3 states. [2018-09-23 21:17:19,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:17:19,680 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2018-09-23 21:17:19,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-23 21:17:19,680 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-09-23 21:17:19,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:17:19,681 INFO L225 Difference]: With dead ends: 21 [2018-09-23 21:17:19,681 INFO L226 Difference]: Without dead ends: 14 [2018-09-23 21:17:19,682 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 [2018-09-23 21:17:19,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-09-23 21:17:19,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-09-23 21:17:19,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-23 21:17:19,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2018-09-23 21:17:19,686 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 8 [2018-09-23 21:17:19,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:17:19,687 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2018-09-23 21:17:19,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-23 21:17:19,687 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-09-23 21:17:19,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-23 21:17:19,688 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:17:19,688 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1] [2018-09-23 21:17:19,688 INFO L423 AbstractCegarLoop]: === Iteration 4 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:17:19,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:17:19,689 INFO L82 PathProgramCache]: Analyzing trace with hash 72785504, now seen corresponding path program 2 times [2018-09-23 21:17:19,689 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:17:19,689 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:17:19,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:19,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:17:19,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:17:20,023 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:17:20,023 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:17:20,023 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 [2018-09-23 21:17:20,032 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-23 21:17:20,055 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-23 21:17:20,056 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 21:17:20,060 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:17:20,401 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:17:20,423 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:17:20,423 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2018-09-23 21:17:20,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-23 21:17:20,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-23 21:17:20,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-09-23 21:17:20,426 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 12 states. [2018-09-23 21:17:20,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:17:20,630 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2018-09-23 21:17:20,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-23 21:17:20,631 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 13 [2018-09-23 21:17:20,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:17:20,632 INFO L225 Difference]: With dead ends: 25 [2018-09-23 21:17:20,633 INFO L226 Difference]: Without dead ends: 23 [2018-09-23 21:17:20,634 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-09-23 21:17:20,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-09-23 21:17:20,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2018-09-23 21:17:20,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-09-23 21:17:20,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2018-09-23 21:17:20,642 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 13 [2018-09-23 21:17:20,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:17:20,643 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2018-09-23 21:17:20,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-23 21:17:20,643 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2018-09-23 21:17:20,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-23 21:17:20,644 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:17:20,644 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1] [2018-09-23 21:17:20,645 INFO L423 AbstractCegarLoop]: === Iteration 5 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:17:20,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:17:20,645 INFO L82 PathProgramCache]: Analyzing trace with hash 491282284, now seen corresponding path program 3 times [2018-09-23 21:17:20,645 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:17:20,646 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:17:20,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:20,647 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 21:17:20,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:20,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:17:20,773 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:17:20,774 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:17:20,774 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 [2018-09-23 21:17:20,788 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-23 21:17:20,818 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-09-23 21:17:20,818 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 21:17:20,820 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:17:21,490 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:17:21,520 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:17:21,520 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2018-09-23 21:17:21,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-23 21:17:21,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-23 21:17:21,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2018-09-23 21:17:21,522 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 16 states. [2018-09-23 21:17:21,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:17:21,627 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2018-09-23 21:17:21,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-23 21:17:21,630 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 18 [2018-09-23 21:17:21,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:17:21,631 INFO L225 Difference]: With dead ends: 30 [2018-09-23 21:17:21,631 INFO L226 Difference]: Without dead ends: 28 [2018-09-23 21:17:21,632 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 [2018-09-23 21:17:21,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-09-23 21:17:21,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2018-09-23 21:17:21,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-09-23 21:17:21,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2018-09-23 21:17:21,637 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 18 [2018-09-23 21:17:21,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:17:21,638 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2018-09-23 21:17:21,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-23 21:17:21,638 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2018-09-23 21:17:21,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-23 21:17:21,639 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:17:21,639 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1] [2018-09-23 21:17:21,640 INFO L423 AbstractCegarLoop]: === Iteration 6 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:17:21,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:17:21,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1589732832, now seen corresponding path program 4 times [2018-09-23 21:17:21,640 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:17:21,640 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:17:21,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:21,641 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 21:17:21,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:17:21,824 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:17:21,824 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:17:21,824 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 [2018-09-23 21:17:21,834 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-23 21:17:21,851 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-23 21:17:21,851 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 21:17:21,854 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:17:22,178 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:17:22,199 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:17:22,199 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2018-09-23 21:17:22,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-23 21:17:22,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-23 21:17:22,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2018-09-23 21:17:22,201 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 20 states. [2018-09-23 21:17:22,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:17:22,547 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2018-09-23 21:17:22,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-23 21:17:22,549 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 23 [2018-09-23 21:17:22,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:17:22,550 INFO L225 Difference]: With dead ends: 35 [2018-09-23 21:17:22,550 INFO L226 Difference]: Without dead ends: 33 [2018-09-23 21:17:22,552 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 [2018-09-23 21:17:22,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-09-23 21:17:22,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2018-09-23 21:17:22,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-09-23 21:17:22,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2018-09-23 21:17:22,560 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 23 [2018-09-23 21:17:22,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:17:22,563 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2018-09-23 21:17:22,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-09-23 21:17:22,563 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2018-09-23 21:17:22,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-23 21:17:22,566 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:17:22,566 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 1, 1, 1] [2018-09-23 21:17:22,566 INFO L423 AbstractCegarLoop]: === Iteration 7 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:17:22,572 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:17:22,572 INFO L82 PathProgramCache]: Analyzing trace with hash 602818540, now seen corresponding path program 5 times [2018-09-23 21:17:22,572 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:17:22,572 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:17:22,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:22,574 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 21:17:22,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:17:22,895 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:17:22,895 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:17:22,895 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 [2018-09-23 21:17:22,903 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-09-23 21:17:22,917 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-09-23 21:17:22,918 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 21:17:22,921 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:17:23,711 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:17:23,733 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:17:23,734 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2018-09-23 21:17:23,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-09-23 21:17:23,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-09-23 21:17:23,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2018-09-23 21:17:23,735 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand 24 states. [2018-09-23 21:17:23,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:17:23,866 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2018-09-23 21:17:23,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-23 21:17:23,868 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 28 [2018-09-23 21:17:23,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:17:23,869 INFO L225 Difference]: With dead ends: 40 [2018-09-23 21:17:23,869 INFO L226 Difference]: Without dead ends: 38 [2018-09-23 21:17:23,870 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 [2018-09-23 21:17:23,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-09-23 21:17:23,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2018-09-23 21:17:23,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-09-23 21:17:23,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2018-09-23 21:17:23,876 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 28 [2018-09-23 21:17:23,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:17:23,877 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2018-09-23 21:17:23,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-09-23 21:17:23,877 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2018-09-23 21:17:23,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-09-23 21:17:23,878 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:17:23,878 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 1, 1, 1] [2018-09-23 21:17:23,878 INFO L423 AbstractCegarLoop]: === Iteration 8 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:17:23,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:17:23,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1979239776, now seen corresponding path program 6 times [2018-09-23 21:17:23,879 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:17:23,879 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:17:23,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:23,880 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 21:17:23,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:17:24,157 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:17:24,157 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:17:24,157 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 [2018-09-23 21:17:24,165 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-09-23 21:17:24,184 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2018-09-23 21:17:24,184 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 21:17:24,186 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:17:24,849 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:17:24,882 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:17:24,882 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2018-09-23 21:17:24,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-09-23 21:17:24,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-09-23 21:17:24,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=528, Unknown=0, NotChecked=0, Total=756 [2018-09-23 21:17:24,884 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand 28 states. [2018-09-23 21:17:25,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:17:25,091 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2018-09-23 21:17:25,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-23 21:17:25,093 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 33 [2018-09-23 21:17:25,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:17:25,094 INFO L225 Difference]: With dead ends: 45 [2018-09-23 21:17:25,094 INFO L226 Difference]: Without dead ends: 43 [2018-09-23 21:17:25,095 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=228, Invalid=528, Unknown=0, NotChecked=0, Total=756 [2018-09-23 21:17:25,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-09-23 21:17:25,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2018-09-23 21:17:25,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-09-23 21:17:25,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2018-09-23 21:17:25,101 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 33 [2018-09-23 21:17:25,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:17:25,102 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2018-09-23 21:17:25,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-09-23 21:17:25,102 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2018-09-23 21:17:25,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-23 21:17:25,103 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:17:25,103 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1] [2018-09-23 21:17:25,104 INFO L423 AbstractCegarLoop]: === Iteration 9 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:17:25,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:17:25,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1800695700, now seen corresponding path program 7 times [2018-09-23 21:17:25,104 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:17:25,104 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:17:25,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:25,105 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 21:17:25,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:17:25,484 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:17:25,484 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:17:25,485 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 [2018-09-23 21:17:25,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:17:25,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:17:25,520 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:17:26,000 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:17:26,021 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:17:26,021 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2018-09-23 21:17:26,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-09-23 21:17:26,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-09-23 21:17:26,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=699, Unknown=0, NotChecked=0, Total=992 [2018-09-23 21:17:26,023 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand 32 states. [2018-09-23 21:17:26,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:17:26,191 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2018-09-23 21:17:26,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-23 21:17:26,192 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 38 [2018-09-23 21:17:26,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:17:26,194 INFO L225 Difference]: With dead ends: 50 [2018-09-23 21:17:26,194 INFO L226 Difference]: Without dead ends: 48 [2018-09-23 21:17:26,195 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 [2018-09-23 21:17:26,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-09-23 21:17:26,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2018-09-23 21:17:26,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-09-23 21:17:26,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2018-09-23 21:17:26,201 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 38 [2018-09-23 21:17:26,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:17:26,202 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2018-09-23 21:17:26,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-09-23 21:17:26,202 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2018-09-23 21:17:26,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-23 21:17:26,203 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:17:26,203 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1] [2018-09-23 21:17:26,203 INFO L423 AbstractCegarLoop]: === Iteration 10 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:17:26,204 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:17:26,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1430989600, now seen corresponding path program 8 times [2018-09-23 21:17:26,204 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:17:26,204 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:17:26,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:26,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:17:26,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:17:26,471 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:17:26,471 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:17:26,471 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 [2018-09-23 21:17:26,482 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-23 21:17:26,524 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-23 21:17:26,525 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 21:17:26,533 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:17:27,077 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:17:27,099 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:17:27,099 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 35 [2018-09-23 21:17:27,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-09-23 21:17:27,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-09-23 21:17:27,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=366, Invalid=894, Unknown=0, NotChecked=0, Total=1260 [2018-09-23 21:17:27,101 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand 36 states. [2018-09-23 21:17:27,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:17:27,461 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2018-09-23 21:17:27,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-23 21:17:27,461 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 43 [2018-09-23 21:17:27,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:17:27,463 INFO L225 Difference]: With dead ends: 55 [2018-09-23 21:17:27,463 INFO L226 Difference]: Without dead ends: 53 [2018-09-23 21:17:27,464 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=366, Invalid=894, Unknown=0, NotChecked=0, Total=1260 [2018-09-23 21:17:27,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-09-23 21:17:27,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2018-09-23 21:17:27,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-09-23 21:17:27,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2018-09-23 21:17:27,472 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 43 [2018-09-23 21:17:27,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:17:27,472 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2018-09-23 21:17:27,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-09-23 21:17:27,472 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2018-09-23 21:17:27,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-23 21:17:27,474 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:17:27,474 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 1, 1, 1] [2018-09-23 21:17:27,474 INFO L423 AbstractCegarLoop]: === Iteration 11 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:17:27,474 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:17:27,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1043842836, now seen corresponding path program 9 times [2018-09-23 21:17:27,475 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:17:27,475 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:17:27,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:27,476 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 21:17:27,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:27,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:17:27,752 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:17:27,752 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:17:27,753 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 [2018-09-23 21:17:27,762 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-23 21:17:27,787 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2018-09-23 21:17:27,787 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 21:17:27,791 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:17:28,888 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:17:28,909 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:17:28,909 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 39 [2018-09-23 21:17:28,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-09-23 21:17:28,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-09-23 21:17:28,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=447, Invalid=1113, Unknown=0, NotChecked=0, Total=1560 [2018-09-23 21:17:28,911 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand 40 states. [2018-09-23 21:17:29,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:17:29,154 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2018-09-23 21:17:29,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-23 21:17:29,155 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 48 [2018-09-23 21:17:29,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:17:29,156 INFO L225 Difference]: With dead ends: 60 [2018-09-23 21:17:29,156 INFO L226 Difference]: Without dead ends: 58 [2018-09-23 21:17:29,157 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 764 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=447, Invalid=1113, Unknown=0, NotChecked=0, Total=1560 [2018-09-23 21:17:29,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-09-23 21:17:29,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2018-09-23 21:17:29,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-09-23 21:17:29,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2018-09-23 21:17:29,163 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 48 [2018-09-23 21:17:29,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:17:29,163 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2018-09-23 21:17:29,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-09-23 21:17:29,163 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2018-09-23 21:17:29,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-09-23 21:17:29,165 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:17:29,165 INFO L375 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1] [2018-09-23 21:17:29,165 INFO L423 AbstractCegarLoop]: === Iteration 12 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:17:29,165 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:17:29,165 INFO L82 PathProgramCache]: Analyzing trace with hash -676496288, now seen corresponding path program 10 times [2018-09-23 21:17:29,165 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:17:29,166 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:17:29,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:29,167 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 21:17:29,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:17:29,659 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:17:29,659 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:17:29,659 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 [2018-09-23 21:17:29,667 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-23 21:17:29,709 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-23 21:17:29,710 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 21:17:29,713 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:17:30,452 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:17:30,473 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:17:30,473 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 43 [2018-09-23 21:17:30,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-09-23 21:17:30,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-09-23 21:17:30,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=536, Invalid=1356, Unknown=0, NotChecked=0, Total=1892 [2018-09-23 21:17:30,475 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand 44 states. [2018-09-23 21:17:30,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:17:30,788 INFO L93 Difference]: Finished difference Result 65 states and 77 transitions. [2018-09-23 21:17:30,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-23 21:17:30,789 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 53 [2018-09-23 21:17:30,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:17:30,790 INFO L225 Difference]: With dead ends: 65 [2018-09-23 21:17:30,790 INFO L226 Difference]: Without dead ends: 63 [2018-09-23 21:17:30,791 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 [2018-09-23 21:17:30,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-23 21:17:30,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2018-09-23 21:17:30,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-09-23 21:17:30,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2018-09-23 21:17:30,799 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 53 [2018-09-23 21:17:30,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:17:30,800 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2018-09-23 21:17:30,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-09-23 21:17:30,800 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2018-09-23 21:17:30,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-23 21:17:30,801 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:17:30,801 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 1, 1, 1] [2018-09-23 21:17:30,801 INFO L423 AbstractCegarLoop]: === Iteration 13 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:17:30,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:17:30,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1014218388, now seen corresponding path program 11 times [2018-09-23 21:17:30,802 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:17:30,802 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:17:30,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:30,803 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-23 21:17:30,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:17:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-23 21:17:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-23 21:17:30,845 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-09-23 21:17:30,883 INFO L202 PluginConnector]: Adding new model GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.09 09:17:30 BoogieIcfgContainer [2018-09-23 21:17:30,883 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-23 21:17:30,884 INFO L168 Benchmark]: Toolchain (without parser) took 12681.29 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 42.5 MB). Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 438.9 MB). Peak memory consumption was 481.4 MB. Max. memory is 7.1 GB. [2018-09-23 21:17:30,887 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.29 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. [2018-09-23 21:17:30,887 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.03 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. [2018-09-23 21:17:30,888 INFO L168 Benchmark]: Boogie Preprocessor took 24.62 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. [2018-09-23 21:17:30,888 INFO L168 Benchmark]: RCFGBuilder took 288.99 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. [2018-09-23 21:17:30,889 INFO L168 Benchmark]: TraceAbstraction took 12315.63 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 42.5 MB). Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 417.8 MB). Peak memory consumption was 460.2 MB. Max. memory is 7.1 GB. [2018-09-23 21:17:30,893 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 0.29 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 45.03 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 24.62 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 288.99 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 12315.63 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 42.5 MB). Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 417.8 MB). Peak memory consumption was 460.2 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, 12.2s OverallTime, 13 OverallIterations, 11 TraceHistogramMax, 2.3s 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, 7.7s 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, 8.7s 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-0-2018-09-23_21-17-30-909.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/GateControllerIncorrect1.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-23_21-17-30-909.csv Received shutdown request...