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_PUPT.epf -i ../../../trunk/examples/programs/real-life/GateControllerIncorrect1.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-00a8621 [2018-09-30 10:42:33,175 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 10:42:33,177 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 10:42:33,190 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-09-30 10:42:33,245 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default_PUPT.epf [2018-09-30 10:42:33,272 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 10:42:33,272 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 10:42:33,273 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 10:42:33,273 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 10:42:33,274 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 10:42:33,275 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 10:42:33,275 INFO L133 SettingsManager]: * Use SBE=true [2018-09-30 10:42:33,275 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 10:42:33,275 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 10:42:33,277 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 10:42:33,277 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 10:42:33,277 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 10:42:33,277 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 10:42:33,278 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 10:42:33,278 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 10:42:33,278 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 10:42:33,278 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 10:42:33,280 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 10:42:33,280 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 10:42:33,280 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-30 10:42:33,281 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 10:42:33,281 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-30 10:42:33,281 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-30 10:42:33,281 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 10:42:33,281 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 10:42:33,282 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 10:42:33,282 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-30 10:42:33,282 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 10:42:33,282 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 10:42:33,282 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 10:42:33,283 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-30 10:42:33,354 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 10:42:33,370 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 10:42:33,375 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 10:42:33,377 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 10:42:33,378 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 10:42:33,379 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/GateControllerIncorrect1.bpl [2018-09-30 10:42:33,380 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/GateControllerIncorrect1.bpl' [2018-09-30 10:42:33,432 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 10:42:33,436 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 10:42:33,436 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 10:42:33,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 10:42:33,437 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 10:42:33,458 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 10:42:33" (1/1) ... [2018-09-30 10:42:33,471 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 10:42:33" (1/1) ... [2018-09-30 10:42:33,475 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-30 10:42:33,476 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-30 10:42:33,476 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-30 10:42:33,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 10:42:33,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 10:42:33,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 10:42:33,479 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 10:42:33,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:42:33" (1/1) ... [2018-09-30 10:42:33,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:42:33" (1/1) ... [2018-09-30 10:42:33,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:42:33" (1/1) ... [2018-09-30 10:42:33,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:42:33" (1/1) ... [2018-09-30 10:42:33,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:42:33" (1/1) ... [2018-09-30 10:42:33,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:42:33" (1/1) ... [2018-09-30 10:42:33,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:42:33" (1/1) ... [2018-09-30 10:42:33,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 10:42:33,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 10:42:33,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 10:42:33,504 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 10:42:33,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:42:33" (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 10:42:33,580 INFO L124 BoogieDeclarations]: Specification and implementation of procedure GateController given in one single declaration [2018-09-30 10:42:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure GateController [2018-09-30 10:42:33,580 INFO L138 BoogieDeclarations]: Found implementation of procedure GateController [2018-09-30 10:42:33,911 INFO L345 CfgBuilder]: Using library mode [2018-09-30 10:42:33,911 INFO L202 PluginConnector]: Adding new model GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 10:42:33 BoogieIcfgContainer [2018-09-30 10:42:33,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 10:42:33,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-30 10:42:33,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-30 10:42:33,916 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-30 10:42:33,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:42:33" (1/2) ... [2018-09-30 10:42:33,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17264238 and model type GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.09 10:42:33, skipping insertion in model container [2018-09-30 10:42:33,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 10:42:33" (2/2) ... [2018-09-30 10:42:33,921 INFO L112 eAbstractionObserver]: Analyzing ICFG GateControllerIncorrect1.bpl [2018-09-30 10:42:33,932 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-30 10:42:33,940 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-30 10:42:33,994 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-30 10:42:33,995 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-30 10:42:33,995 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-30 10:42:33,995 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-30 10:42:33,995 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-30 10:42:33,995 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-30 10:42:33,996 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-30 10:42:33,996 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-30 10:42:33,996 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-30 10:42:34,012 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2018-09-30 10:42:34,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-30 10:42:34,019 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:42:34,020 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-09-30 10:42:34,022 INFO L423 AbstractCegarLoop]: === Iteration 1 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:42:34,030 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 10:42:34,030 INFO L82 PathProgramCache]: Analyzing trace with hash 30432, now seen corresponding path program 1 times [2018-09-30 10:42:34,033 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:42:34,033 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:42:34,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:34,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:42:34,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:34,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:42:34,185 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 10:42:34,187 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:42:34,188 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 10:42:34,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:42:34,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:42:34,206 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 10:42:34,208 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2018-09-30 10:42:34,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:42:34,422 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2018-09-30 10:42:34,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:42:34,424 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-09-30 10:42:34,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:42:34,436 INFO L225 Difference]: With dead ends: 19 [2018-09-30 10:42:34,436 INFO L226 Difference]: Without dead ends: 13 [2018-09-30 10:42:34,440 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 10:42:34,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-09-30 10:42:34,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 9. [2018-09-30 10:42:34,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-09-30 10:42:34,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2018-09-30 10:42:34,476 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 3 [2018-09-30 10:42:34,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:42:34,477 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-09-30 10:42:34,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:42:34,477 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-09-30 10:42:34,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-30 10:42:34,477 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:42:34,478 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:42:34,478 INFO L423 AbstractCegarLoop]: === Iteration 2 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:42:34,478 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 10:42:34,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1953617644, now seen corresponding path program 1 times [2018-09-30 10:42:34,479 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:42:34,479 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:42:34,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:34,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:42:34,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:42:34,595 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 10:42:34,596 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:42:34,596 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 10:42:34,611 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:42:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:42:34,647 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:42:35,227 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 10:42:35,257 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:42:35,257 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-09-30 10:42:35,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-30 10:42:35,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-30 10:42:35,259 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 10:42:35,259 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. Second operand 8 states. [2018-09-30 10:42:35,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:42:35,780 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2018-09-30 10:42:35,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-30 10:42:35,781 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2018-09-30 10:42:35,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:42:35,782 INFO L225 Difference]: With dead ends: 21 [2018-09-30 10:42:35,782 INFO L226 Difference]: Without dead ends: 19 [2018-09-30 10:42:35,783 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 10:42:35,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-09-30 10:42:35,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 14. [2018-09-30 10:42:35,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-30 10:42:35,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2018-09-30 10:42:35,788 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 18 transitions. Word has length 8 [2018-09-30 10:42:35,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:42:35,789 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 18 transitions. [2018-09-30 10:42:35,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-30 10:42:35,789 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2018-09-30 10:42:35,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-30 10:42:35,790 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:42:35,790 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:42:35,791 INFO L423 AbstractCegarLoop]: === Iteration 3 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:42:35,791 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 10:42:35,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1953558062, now seen corresponding path program 1 times [2018-09-30 10:42:35,792 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:42:35,792 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:42:35,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:35,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:42:35,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:42:35,847 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 10:42:35,848 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:42:35,848 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 10:42:35,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:42:35,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:42:35,849 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 10:42:35,849 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. Second operand 3 states. [2018-09-30 10:42:35,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:42:35,899 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2018-09-30 10:42:35,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:42:35,899 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-09-30 10:42:35,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:42:35,900 INFO L225 Difference]: With dead ends: 21 [2018-09-30 10:42:35,900 INFO L226 Difference]: Without dead ends: 14 [2018-09-30 10:42:35,901 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 10:42:35,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-09-30 10:42:35,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-09-30 10:42:35,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-30 10:42:35,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2018-09-30 10:42:35,906 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 8 [2018-09-30 10:42:35,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:42:35,906 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2018-09-30 10:42:35,907 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:42:35,907 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-09-30 10:42:35,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-30 10:42:35,907 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:42:35,908 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1] [2018-09-30 10:42:35,908 INFO L423 AbstractCegarLoop]: === Iteration 4 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:42:35,908 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 10:42:35,908 INFO L82 PathProgramCache]: Analyzing trace with hash 72785504, now seen corresponding path program 2 times [2018-09-30 10:42:35,908 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:42:35,909 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:42:35,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:35,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:42:35,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:42:36,006 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 10:42:36,007 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:42:36,007 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 10:42:36,017 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-30 10:42:36,037 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-30 10:42:36,038 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-30 10:42:36,041 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:42:36,410 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 10:42:36,433 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:42:36,434 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2018-09-30 10:42:36,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-30 10:42:36,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-30 10:42:36,435 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 10:42:36,435 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 12 states. [2018-09-30 10:42:37,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:42:37,221 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2018-09-30 10:42:37,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-30 10:42:37,222 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 13 [2018-09-30 10:42:37,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:42:37,223 INFO L225 Difference]: With dead ends: 25 [2018-09-30 10:42:37,223 INFO L226 Difference]: Without dead ends: 23 [2018-09-30 10:42:37,224 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 10:42:37,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-09-30 10:42:37,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2018-09-30 10:42:37,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-09-30 10:42:37,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2018-09-30 10:42:37,232 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 13 [2018-09-30 10:42:37,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:42:37,233 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2018-09-30 10:42:37,233 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-30 10:42:37,233 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2018-09-30 10:42:37,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-30 10:42:37,234 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:42:37,234 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1] [2018-09-30 10:42:37,234 INFO L423 AbstractCegarLoop]: === Iteration 5 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:42:37,235 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 10:42:37,236 INFO L82 PathProgramCache]: Analyzing trace with hash 491282284, now seen corresponding path program 3 times [2018-09-30 10:42:37,236 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:42:37,236 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:42:37,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:37,238 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-30 10:42:37,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:42:37,424 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 10:42:37,425 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:42:37,425 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 10:42:37,435 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-30 10:42:37,446 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-09-30 10:42:37,446 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-30 10:42:37,448 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:42:37,793 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 10:42:37,823 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:42:37,824 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2018-09-30 10:42:37,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-30 10:42:37,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-30 10:42:37,825 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 10:42:37,825 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 16 states. [2018-09-30 10:42:38,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:42:38,113 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2018-09-30 10:42:38,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-30 10:42:38,118 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 18 [2018-09-30 10:42:38,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:42:38,119 INFO L225 Difference]: With dead ends: 30 [2018-09-30 10:42:38,119 INFO L226 Difference]: Without dead ends: 28 [2018-09-30 10:42:38,119 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 10:42:38,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-09-30 10:42:38,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2018-09-30 10:42:38,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-09-30 10:42:38,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2018-09-30 10:42:38,124 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 18 [2018-09-30 10:42:38,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:42:38,125 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2018-09-30 10:42:38,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-30 10:42:38,125 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2018-09-30 10:42:38,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-30 10:42:38,126 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:42:38,126 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1] [2018-09-30 10:42:38,127 INFO L423 AbstractCegarLoop]: === Iteration 6 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:42:38,127 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 10:42:38,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1589732832, now seen corresponding path program 4 times [2018-09-30 10:42:38,127 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:42:38,127 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:42:38,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:38,128 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-30 10:42:38,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:38,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:42:38,269 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 10:42:38,270 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:42:38,270 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 10:42:38,278 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-30 10:42:38,290 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-30 10:42:38,290 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-30 10:42:38,293 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:42:38,826 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 10:42:38,846 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:42:38,847 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2018-09-30 10:42:38,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-30 10:42:38,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-30 10:42:38,848 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 10:42:38,848 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 20 states. [2018-09-30 10:42:39,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:42:39,891 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2018-09-30 10:42:39,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-30 10:42:39,891 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 23 [2018-09-30 10:42:39,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:42:39,892 INFO L225 Difference]: With dead ends: 35 [2018-09-30 10:42:39,893 INFO L226 Difference]: Without dead ends: 33 [2018-09-30 10:42:39,893 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 10:42:39,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-09-30 10:42:39,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2018-09-30 10:42:39,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-09-30 10:42:39,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2018-09-30 10:42:39,899 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 23 [2018-09-30 10:42:39,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:42:39,900 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2018-09-30 10:42:39,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-09-30 10:42:39,900 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2018-09-30 10:42:39,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-30 10:42:39,901 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:42:39,901 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 1, 1, 1] [2018-09-30 10:42:39,902 INFO L423 AbstractCegarLoop]: === Iteration 7 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:42:39,902 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 10:42:39,902 INFO L82 PathProgramCache]: Analyzing trace with hash 602818540, now seen corresponding path program 5 times [2018-09-30 10:42:39,902 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:42:39,902 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:42:39,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:39,903 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-30 10:42:39,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:39,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:42:40,043 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 10:42:40,044 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:42:40,044 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 10:42:40,059 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-09-30 10:42:40,075 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-09-30 10:42:40,075 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-30 10:42:40,078 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:42:40,734 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 10:42:40,755 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:42:40,755 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2018-09-30 10:42:40,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-09-30 10:42:40,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-09-30 10:42:40,756 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 10:42:40,756 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand 24 states. [2018-09-30 10:42:41,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:42:41,358 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2018-09-30 10:42:41,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-30 10:42:41,358 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 28 [2018-09-30 10:42:41,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:42:41,359 INFO L225 Difference]: With dead ends: 40 [2018-09-30 10:42:41,359 INFO L226 Difference]: Without dead ends: 38 [2018-09-30 10:42:41,360 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 10:42:41,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-09-30 10:42:41,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2018-09-30 10:42:41,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-09-30 10:42:41,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2018-09-30 10:42:41,365 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 28 [2018-09-30 10:42:41,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:42:41,366 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2018-09-30 10:42:41,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-09-30 10:42:41,366 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2018-09-30 10:42:41,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-09-30 10:42:41,367 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:42:41,367 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 1, 1, 1] [2018-09-30 10:42:41,367 INFO L423 AbstractCegarLoop]: === Iteration 8 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:42:41,368 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 10:42:41,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1979239776, now seen corresponding path program 6 times [2018-09-30 10:42:41,368 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:42:41,368 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:42:41,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:41,369 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-30 10:42:41,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:41,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:42:41,524 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 10:42:41,525 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:42:41,525 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 10:42:41,534 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-09-30 10:42:41,553 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2018-09-30 10:42:41,553 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-30 10:42:41,555 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:42:42,125 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 10:42:42,154 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:42:42,154 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2018-09-30 10:42:42,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-09-30 10:42:42,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-09-30 10:42:42,155 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 10:42:42,155 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand 28 states. [2018-09-30 10:42:42,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:42:42,783 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2018-09-30 10:42:42,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-30 10:42:42,784 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 33 [2018-09-30 10:42:42,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:42:42,785 INFO L225 Difference]: With dead ends: 45 [2018-09-30 10:42:42,785 INFO L226 Difference]: Without dead ends: 43 [2018-09-30 10:42:42,785 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 10:42:42,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-09-30 10:42:42,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2018-09-30 10:42:42,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-09-30 10:42:42,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2018-09-30 10:42:42,790 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 33 [2018-09-30 10:42:42,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:42:42,791 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2018-09-30 10:42:42,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-09-30 10:42:42,791 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2018-09-30 10:42:42,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-30 10:42:42,792 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:42:42,792 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1] [2018-09-30 10:42:42,793 INFO L423 AbstractCegarLoop]: === Iteration 9 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:42:42,793 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 10:42:42,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1800695700, now seen corresponding path program 7 times [2018-09-30 10:42:42,793 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:42:42,793 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:42:42,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:42,794 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-30 10:42:42,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:42:42,991 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 10:42:42,991 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:42:42,991 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 10:42:42,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:42:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:42:43,013 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:42:43,529 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 10:42:43,550 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:42:43,551 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2018-09-30 10:42:43,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-09-30 10:42:43,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-09-30 10:42:43,552 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 10:42:43,552 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand 32 states. [2018-09-30 10:42:44,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:42:44,409 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2018-09-30 10:42:44,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-30 10:42:44,410 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 38 [2018-09-30 10:42:44,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:42:44,411 INFO L225 Difference]: With dead ends: 50 [2018-09-30 10:42:44,411 INFO L226 Difference]: Without dead ends: 48 [2018-09-30 10:42:44,411 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 10:42:44,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-09-30 10:42:44,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2018-09-30 10:42:44,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-09-30 10:42:44,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2018-09-30 10:42:44,419 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 38 [2018-09-30 10:42:44,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:42:44,419 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2018-09-30 10:42:44,419 INFO L481 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-09-30 10:42:44,419 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2018-09-30 10:42:44,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-30 10:42:44,420 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:42:44,421 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1] [2018-09-30 10:42:44,421 INFO L423 AbstractCegarLoop]: === Iteration 10 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:42:44,421 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 10:42:44,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1430989600, now seen corresponding path program 8 times [2018-09-30 10:42:44,421 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:42:44,421 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:42:44,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:44,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:42:44,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:44,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:42:44,730 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 10:42:44,731 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:42:44,731 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 10:42:44,741 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-30 10:42:44,754 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-30 10:42:44,754 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-30 10:42:44,758 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:42:45,369 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 10:42:45,391 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:42:45,392 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 35 [2018-09-30 10:42:45,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-09-30 10:42:45,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-09-30 10:42:45,393 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 10:42:45,393 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand 36 states. [2018-09-30 10:42:45,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:42:45,872 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2018-09-30 10:42:45,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-30 10:42:45,873 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 43 [2018-09-30 10:42:45,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:42:45,873 INFO L225 Difference]: With dead ends: 55 [2018-09-30 10:42:45,874 INFO L226 Difference]: Without dead ends: 53 [2018-09-30 10:42:45,874 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 10:42:45,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-09-30 10:42:45,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2018-09-30 10:42:45,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-09-30 10:42:45,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2018-09-30 10:42:45,880 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 43 [2018-09-30 10:42:45,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:42:45,880 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2018-09-30 10:42:45,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-09-30 10:42:45,880 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2018-09-30 10:42:45,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-30 10:42:45,882 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:42:45,882 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 1, 1, 1] [2018-09-30 10:42:45,882 INFO L423 AbstractCegarLoop]: === Iteration 11 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:42:45,882 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 10:42:45,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1043842836, now seen corresponding path program 9 times [2018-09-30 10:42:45,882 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:42:45,883 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:42:45,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:45,883 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-30 10:42:45,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:42:46,056 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 10:42:46,057 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:42:46,057 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 10:42:46,066 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-30 10:42:46,101 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2018-09-30 10:42:46,102 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-30 10:42:46,104 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:42:47,151 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 10:42:47,175 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:42:47,175 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 39 [2018-09-30 10:42:47,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-09-30 10:42:47,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-09-30 10:42:47,177 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 10:42:47,177 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand 40 states. [2018-09-30 10:42:47,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:42:47,948 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2018-09-30 10:42:47,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-30 10:42:47,949 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 48 [2018-09-30 10:42:47,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:42:47,950 INFO L225 Difference]: With dead ends: 60 [2018-09-30 10:42:47,950 INFO L226 Difference]: Without dead ends: 58 [2018-09-30 10:42:47,950 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 10:42:47,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-09-30 10:42:47,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2018-09-30 10:42:47,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-09-30 10:42:47,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2018-09-30 10:42:47,957 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 48 [2018-09-30 10:42:47,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:42:47,958 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2018-09-30 10:42:47,958 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-09-30 10:42:47,958 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2018-09-30 10:42:47,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-09-30 10:42:47,959 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:42:47,959 INFO L375 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1] [2018-09-30 10:42:47,959 INFO L423 AbstractCegarLoop]: === Iteration 12 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:42:47,959 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 10:42:47,960 INFO L82 PathProgramCache]: Analyzing trace with hash -676496288, now seen corresponding path program 10 times [2018-09-30 10:42:47,960 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:42:47,960 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:42:47,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:47,961 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-30 10:42:47,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:42:48,614 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 10:42:48,615 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:42:48,615 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 10:42:48,623 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-30 10:42:48,667 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-30 10:42:48,668 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-30 10:42:48,671 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:42:49,640 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 10:42:49,660 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:42:49,660 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 43 [2018-09-30 10:42:49,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-09-30 10:42:49,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-09-30 10:42:49,661 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 10:42:49,662 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand 44 states. [2018-09-30 10:42:50,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:42:50,869 INFO L93 Difference]: Finished difference Result 65 states and 77 transitions. [2018-09-30 10:42:50,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-30 10:42:50,870 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 53 [2018-09-30 10:42:50,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:42:50,871 INFO L225 Difference]: With dead ends: 65 [2018-09-30 10:42:50,871 INFO L226 Difference]: Without dead ends: 63 [2018-09-30 10:42:50,872 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 10:42:50,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-30 10:42:50,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2018-09-30 10:42:50,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-09-30 10:42:50,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2018-09-30 10:42:50,878 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 53 [2018-09-30 10:42:50,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:42:50,878 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2018-09-30 10:42:50,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-09-30 10:42:50,878 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2018-09-30 10:42:50,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-30 10:42:50,879 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:42:50,879 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 1, 1, 1] [2018-09-30 10:42:50,880 INFO L423 AbstractCegarLoop]: === Iteration 13 === [GateControllerErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:42:50,880 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 10:42:50,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1014218388, now seen corresponding path program 11 times [2018-09-30 10:42:50,880 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:42:50,880 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:42:50,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:50,881 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-30 10:42:50,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:50,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-30 10:42:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-30 10:42:50,923 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-09-30 10:42:50,962 INFO L202 PluginConnector]: Adding new model GateControllerIncorrect1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.09 10:42:50 BoogieIcfgContainer [2018-09-30 10:42:50,962 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-30 10:42:50,963 INFO L168 Benchmark]: Toolchain (without parser) took 17530.55 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 138.9 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 36.2 MB). Peak memory consumption was 175.2 MB. Max. memory is 7.1 GB. [2018-09-30 10:42:50,965 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.30 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 10:42:50,966 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.24 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 10:42:50,967 INFO L168 Benchmark]: Boogie Preprocessor took 24.36 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 10:42:50,967 INFO L168 Benchmark]: RCFGBuilder took 407.96 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 10:42:50,968 INFO L168 Benchmark]: TraceAbstraction took 17049.63 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 138.9 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 15.1 MB). Peak memory consumption was 154.0 MB. Max. memory is 7.1 GB. [2018-09-30 10:42:50,973 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 0.30 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 42.24 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 24.36 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 407.96 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 17049.63 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 138.9 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 15.1 MB). Peak memory consumption was 154.0 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, 16.9s OverallTime, 13 OverallIterations, 11 TraceHistogramMax, 7.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 125 SDtfs, 810 SDslu, 759 SDs, 0 SdLazy, 777 SolverSat, 148 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 429 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 242 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 45 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.3s 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_PUPT.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-30_10-42-50-995.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/GateControllerIncorrect1.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-30_10-42-50-995.csv Received shutdown request...