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/ElevatorWithAssignments.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cc990c [2018-09-30 20:34:07,613 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 20:34:07,616 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 20:34:07,634 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 20:34:07,635 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 20:34:07,636 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 20:34:07,638 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 20:34:07,640 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 20:34:07,643 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 20:34:07,645 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 20:34:07,646 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-30 20:34:07,691 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 20:34:07,717 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 20:34:07,717 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 20:34:07,718 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 20:34:07,721 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 20:34:07,722 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 20:34:07,722 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 20:34:07,723 INFO L133 SettingsManager]: * Use SBE=true [2018-09-30 20:34:07,723 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 20:34:07,723 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 20:34:07,723 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 20:34:07,724 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 20:34:07,725 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 20:34:07,725 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 20:34:07,725 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 20:34:07,725 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 20:34:07,725 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 20:34:07,726 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 20:34:07,726 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 20:34:07,726 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 20:34:07,726 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-30 20:34:07,727 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 20:34:07,728 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-30 20:34:07,728 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-30 20:34:07,728 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 20:34:07,728 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 20:34:07,729 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 20:34:07,729 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-30 20:34:07,729 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 20:34:07,729 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 20:34:07,729 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 20:34:07,729 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-30 20:34:07,797 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 20:34:07,811 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 20:34:07,815 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 20:34:07,817 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 20:34:07,818 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 20:34:07,819 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/ElevatorWithAssignments.bpl [2018-09-30 20:34:07,819 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/ElevatorWithAssignments.bpl' [2018-09-30 20:34:07,887 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 20:34:07,890 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 20:34:07,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 20:34:07,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 20:34:07,893 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 20:34:07,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ElevatorWithAssignments.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:34:07" (1/1) ... [2018-09-30 20:34:07,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ElevatorWithAssignments.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:34:07" (1/1) ... [2018-09-30 20:34:07,936 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-30 20:34:07,937 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-30 20:34:07,937 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-30 20:34:07,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 20:34:07,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 20:34:07,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 20:34:07,941 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 20:34:07,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ElevatorWithAssignments.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:34:07" (1/1) ... [2018-09-30 20:34:07,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ElevatorWithAssignments.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:34:07" (1/1) ... [2018-09-30 20:34:07,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ElevatorWithAssignments.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:34:07" (1/1) ... [2018-09-30 20:34:07,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ElevatorWithAssignments.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:34:07" (1/1) ... [2018-09-30 20:34:07,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ElevatorWithAssignments.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:34:07" (1/1) ... [2018-09-30 20:34:07,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ElevatorWithAssignments.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:34:07" (1/1) ... [2018-09-30 20:34:07,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ElevatorWithAssignments.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:34:07" (1/1) ... [2018-09-30 20:34:07,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 20:34:07,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 20:34:07,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 20:34:07,989 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 20:34:07,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ElevatorWithAssignments.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:34:07" (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 20:34:08,063 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Elevator given in one single declaration [2018-09-30 20:34:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure Elevator [2018-09-30 20:34:08,064 INFO L138 BoogieDeclarations]: Found implementation of procedure Elevator [2018-09-30 20:34:08,742 INFO L345 CfgBuilder]: Using library mode [2018-09-30 20:34:08,742 INFO L202 PluginConnector]: Adding new model ElevatorWithAssignments.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 08:34:08 BoogieIcfgContainer [2018-09-30 20:34:08,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 20:34:08,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-30 20:34:08,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-30 20:34:08,747 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-30 20:34:08,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ElevatorWithAssignments.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:34:07" (1/2) ... [2018-09-30 20:34:08,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5924ee56 and model type ElevatorWithAssignments.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.09 08:34:08, skipping insertion in model container [2018-09-30 20:34:08,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ElevatorWithAssignments.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 08:34:08" (2/2) ... [2018-09-30 20:34:08,750 INFO L112 eAbstractionObserver]: Analyzing ICFG ElevatorWithAssignments.bpl [2018-09-30 20:34:08,759 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-30 20:34:08,768 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-30 20:34:08,817 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-30 20:34:08,818 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-30 20:34:08,818 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-30 20:34:08,818 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-30 20:34:08,818 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-30 20:34:08,818 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-30 20:34:08,819 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-30 20:34:08,819 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-30 20:34:08,819 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-30 20:34:08,835 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-09-30 20:34:08,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-09-30 20:34:08,842 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 20:34:08,843 INFO L375 BasicCegarLoop]: trace histogram [1, 1] [2018-09-30 20:34:08,845 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ElevatorErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-09-30 20:34:08,851 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 20:34:08,851 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-09-30 20:34:08,852 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 20:34:08,853 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 20:34:08,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:08,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:34:08,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:34:08,995 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 20:34:08,997 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 20:34:08,997 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-09-30 20:34:09,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 20:34:09,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 20:34:09,015 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 20:34:09,017 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2018-09-30 20:34:09,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 20:34:09,593 INFO L93 Difference]: Finished difference Result 84 states and 157 transitions. [2018-09-30 20:34:09,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 20:34:09,596 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2018-09-30 20:34:09,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 20:34:09,610 INFO L225 Difference]: With dead ends: 84 [2018-09-30 20:34:09,611 INFO L226 Difference]: Without dead ends: 54 [2018-09-30 20:34:09,614 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 20:34:09,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-09-30 20:34:09,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2018-09-30 20:34:09,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-09-30 20:34:09,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 93 transitions. [2018-09-30 20:34:09,655 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 93 transitions. Word has length 2 [2018-09-30 20:34:09,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 20:34:09,656 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 93 transitions. [2018-09-30 20:34:09,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 20:34:09,656 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 93 transitions. [2018-09-30 20:34:09,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-30 20:34:09,657 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 20:34:09,657 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 20:34:09,658 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ElevatorErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-09-30 20:34:09,658 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 20:34:09,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1770004619, now seen corresponding path program 1 times [2018-09-30 20:34:09,658 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 20:34:09,659 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 20:34:09,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:09,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:34:09,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:34:09,693 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 20:34:09,694 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 20:34:09,694 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 20:34:09,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 20:34:09,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 20:34:09,697 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 20:34:09,697 INFO L87 Difference]: Start difference. First operand 53 states and 93 transitions. Second operand 3 states. [2018-09-30 20:34:09,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 20:34:09,938 INFO L93 Difference]: Finished difference Result 157 states and 277 transitions. [2018-09-30 20:34:09,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 20:34:09,939 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-09-30 20:34:09,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 20:34:09,942 INFO L225 Difference]: With dead ends: 157 [2018-09-30 20:34:09,942 INFO L226 Difference]: Without dead ends: 101 [2018-09-30 20:34:09,943 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 20:34:09,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-09-30 20:34:09,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2018-09-30 20:34:09,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-09-30 20:34:09,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 175 transitions. [2018-09-30 20:34:09,958 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 175 transitions. Word has length 14 [2018-09-30 20:34:09,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 20:34:09,958 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 175 transitions. [2018-09-30 20:34:09,958 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 20:34:09,959 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 175 transitions. [2018-09-30 20:34:09,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-30 20:34:09,960 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 20:34:09,960 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 20:34:09,960 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ElevatorErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-09-30 20:34:09,960 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 20:34:09,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1068940041, now seen corresponding path program 1 times [2018-09-30 20:34:09,961 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 20:34:09,961 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 20:34:09,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:09,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:34:09,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:34:10,004 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 20:34:10,004 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 20:34:10,004 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-30 20:34:10,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 20:34:10,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 20:34:10,005 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 20:34:10,006 INFO L87 Difference]: Start difference. First operand 100 states and 175 transitions. Second operand 3 states. [2018-09-30 20:34:10,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 20:34:10,721 INFO L93 Difference]: Finished difference Result 205 states and 356 transitions. [2018-09-30 20:34:10,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 20:34:10,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-09-30 20:34:10,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 20:34:10,726 INFO L225 Difference]: With dead ends: 205 [2018-09-30 20:34:10,726 INFO L226 Difference]: Without dead ends: 104 [2018-09-30 20:34:10,727 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 20:34:10,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-09-30 20:34:10,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 89. [2018-09-30 20:34:10,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-09-30 20:34:10,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 152 transitions. [2018-09-30 20:34:10,739 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 152 transitions. Word has length 14 [2018-09-30 20:34:10,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 20:34:10,739 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 152 transitions. [2018-09-30 20:34:10,739 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 20:34:10,740 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 152 transitions. [2018-09-30 20:34:10,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-30 20:34:10,741 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 20:34:10,741 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 20:34:10,741 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ElevatorErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-09-30 20:34:10,742 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 20:34:10,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1940946465, now seen corresponding path program 1 times [2018-09-30 20:34:10,742 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 20:34:10,742 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 20:34:10,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:10,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:34:10,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:34:10,875 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 20:34:10,878 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 20:34:10,879 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-30 20:34:10,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-30 20:34:10,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-30 20:34:10,880 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 20:34:10,880 INFO L87 Difference]: Start difference. First operand 89 states and 152 transitions. Second operand 5 states. [2018-09-30 20:34:11,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 20:34:11,358 INFO L93 Difference]: Finished difference Result 321 states and 545 transitions. [2018-09-30 20:34:11,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-30 20:34:11,360 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-09-30 20:34:11,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 20:34:11,364 INFO L225 Difference]: With dead ends: 321 [2018-09-30 20:34:11,365 INFO L226 Difference]: Without dead ends: 209 [2018-09-30 20:34:11,366 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time [2018-09-30 20:34:11,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2018-09-30 20:34:11,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 207. [2018-09-30 20:34:11,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2018-09-30 20:34:11,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 346 transitions. [2018-09-30 20:34:11,397 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 346 transitions. Word has length 19 [2018-09-30 20:34:11,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 20:34:11,398 INFO L480 AbstractCegarLoop]: Abstraction has 207 states and 346 transitions. [2018-09-30 20:34:11,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-30 20:34:11,398 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 346 transitions. [2018-09-30 20:34:11,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-30 20:34:11,400 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 20:34:11,400 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 20:34:11,400 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ElevatorErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-09-30 20:34:11,401 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 20:34:11,401 INFO L82 PathProgramCache]: Analyzing trace with hash 2002343284, now seen corresponding path program 1 times [2018-09-30 20:34:11,401 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 20:34:11,401 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 20:34:11,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:11,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:34:11,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:34:11,461 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-09-30 20:34:11,462 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 20:34:11,462 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-30 20:34:11,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 20:34:11,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 20:34:11,463 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 20:34:11,463 INFO L87 Difference]: Start difference. First operand 207 states and 346 transitions. Second operand 3 states. [2018-09-30 20:34:11,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 20:34:11,728 INFO L93 Difference]: Finished difference Result 522 states and 865 transitions. [2018-09-30 20:34:11,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 20:34:11,731 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2018-09-30 20:34:11,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 20:34:11,733 INFO L225 Difference]: With dead ends: 522 [2018-09-30 20:34:11,734 INFO L226 Difference]: Without dead ends: 310 [2018-09-30 20:34:11,735 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 20:34:11,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2018-09-30 20:34:11,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 213. [2018-09-30 20:34:11,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2018-09-30 20:34:11,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 352 transitions. [2018-09-30 20:34:11,752 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 352 transitions. Word has length 41 [2018-09-30 20:34:11,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 20:34:11,752 INFO L480 AbstractCegarLoop]: Abstraction has 213 states and 352 transitions. [2018-09-30 20:34:11,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 20:34:11,752 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 352 transitions. [2018-09-30 20:34:11,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-30 20:34:11,754 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 20:34:11,754 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 20:34:11,755 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ElevatorErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-09-30 20:34:11,755 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 20:34:11,755 INFO L82 PathProgramCache]: Analyzing trace with hash 2074119508, now seen corresponding path program 1 times [2018-09-30 20:34:11,755 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 20:34:11,755 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 20:34:11,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:11,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:34:11,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:34:11,803 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-09-30 20:34:11,804 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 20:34:11,804 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-30 20:34:11,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 20:34:11,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 20:34:11,805 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 20:34:11,805 INFO L87 Difference]: Start difference. First operand 213 states and 352 transitions. Second operand 3 states. [2018-09-30 20:34:12,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 20:34:12,388 INFO L93 Difference]: Finished difference Result 588 states and 972 transitions. [2018-09-30 20:34:12,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 20:34:12,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2018-09-30 20:34:12,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 20:34:12,396 INFO L225 Difference]: With dead ends: 588 [2018-09-30 20:34:12,396 INFO L226 Difference]: Without dead ends: 367 [2018-09-30 20:34:12,397 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 20:34:12,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2018-09-30 20:34:12,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 354. [2018-09-30 20:34:12,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2018-09-30 20:34:12,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 570 transitions. [2018-09-30 20:34:12,423 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 570 transitions. Word has length 42 [2018-09-30 20:34:12,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 20:34:12,423 INFO L480 AbstractCegarLoop]: Abstraction has 354 states and 570 transitions. [2018-09-30 20:34:12,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 20:34:12,424 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 570 transitions. [2018-09-30 20:34:12,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-30 20:34:12,425 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 20:34:12,426 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 20:34:12,426 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ElevatorErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-09-30 20:34:12,426 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 20:34:12,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1430938278, now seen corresponding path program 1 times [2018-09-30 20:34:12,427 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 20:34:12,427 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 20:34:12,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:12,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:34:12,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:12,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:34:12,519 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-09-30 20:34:12,519 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 20:34:12,519 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-30 20:34:12,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 20:34:12,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 20:34:12,520 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 20:34:12,521 INFO L87 Difference]: Start difference. First operand 354 states and 570 transitions. Second operand 3 states. [2018-09-30 20:34:12,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 20:34:12,695 INFO L93 Difference]: Finished difference Result 880 states and 1399 transitions. [2018-09-30 20:34:12,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 20:34:12,699 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2018-09-30 20:34:12,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 20:34:12,703 INFO L225 Difference]: With dead ends: 880 [2018-09-30 20:34:12,703 INFO L226 Difference]: Without dead ends: 542 [2018-09-30 20:34:12,704 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 20:34:12,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2018-09-30 20:34:12,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 366. [2018-09-30 20:34:12,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2018-09-30 20:34:12,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 582 transitions. [2018-09-30 20:34:12,722 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 582 transitions. Word has length 44 [2018-09-30 20:34:12,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 20:34:12,723 INFO L480 AbstractCegarLoop]: Abstraction has 366 states and 582 transitions. [2018-09-30 20:34:12,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 20:34:12,723 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 582 transitions. [2018-09-30 20:34:12,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-30 20:34:12,725 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 20:34:12,725 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 20:34:12,726 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ElevatorErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-09-30 20:34:12,726 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 20:34:12,726 INFO L82 PathProgramCache]: Analyzing trace with hash -138883553, now seen corresponding path program 1 times [2018-09-30 20:34:12,726 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 20:34:12,726 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 20:34:12,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:12,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:34:12,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:34:12,804 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-09-30 20:34:12,804 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 20:34:12,804 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-30 20:34:12,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-30 20:34:12,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-30 20:34:12,805 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 20:34:12,806 INFO L87 Difference]: Start difference. First operand 366 states and 582 transitions. Second operand 4 states. [2018-09-30 20:34:13,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 20:34:13,002 INFO L93 Difference]: Finished difference Result 1096 states and 1744 transitions. [2018-09-30 20:34:13,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 20:34:13,006 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2018-09-30 20:34:13,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 20:34:13,010 INFO L225 Difference]: With dead ends: 1096 [2018-09-30 20:34:13,011 INFO L226 Difference]: Without dead ends: 731 [2018-09-30 20:34:13,012 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 20:34:13,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2018-09-30 20:34:13,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 666. [2018-09-30 20:34:13,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 666 states. [2018-09-30 20:34:13,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 1037 transitions. [2018-09-30 20:34:13,042 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 1037 transitions. Word has length 46 [2018-09-30 20:34:13,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 20:34:13,043 INFO L480 AbstractCegarLoop]: Abstraction has 666 states and 1037 transitions. [2018-09-30 20:34:13,043 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-30 20:34:13,043 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 1037 transitions. [2018-09-30 20:34:13,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-09-30 20:34:13,045 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 20:34:13,045 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 20:34:13,046 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ElevatorErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-09-30 20:34:13,046 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 20:34:13,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1242691348, now seen corresponding path program 1 times [2018-09-30 20:34:13,046 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 20:34:13,046 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 20:34:13,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:13,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:34:13,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:34:13,641 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 20:34:13,641 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 20:34:13,641 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 20:34:13,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:34:13,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:34:13,706 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 20:34:14,685 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 20:34:14,729 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 20:34:14,729 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-09-30 20:34:14,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-30 20:34:14,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-30 20:34:14,730 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 20:34:14,730 INFO L87 Difference]: Start difference. First operand 666 states and 1037 transitions. Second operand 8 states. [2018-09-30 20:34:15,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 20:34:15,850 INFO L93 Difference]: Finished difference Result 1293 states and 2002 transitions. [2018-09-30 20:34:15,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-30 20:34:15,851 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2018-09-30 20:34:15,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 20:34:15,858 INFO L225 Difference]: With dead ends: 1293 [2018-09-30 20:34:15,858 INFO L226 Difference]: Without dead ends: 1292 [2018-09-30 20:34:15,859 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s Time [2018-09-30 20:34:15,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2018-09-30 20:34:15,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1176. [2018-09-30 20:34:15,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1176 states. [2018-09-30 20:34:15,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 1825 transitions. [2018-09-30 20:34:15,914 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 1825 transitions. Word has length 49 [2018-09-30 20:34:15,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 20:34:15,915 INFO L480 AbstractCegarLoop]: Abstraction has 1176 states and 1825 transitions. [2018-09-30 20:34:15,915 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-30 20:34:15,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 1825 transitions. [2018-09-30 20:34:15,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-09-30 20:34:15,922 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 20:34:15,922 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 20:34:15,922 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ElevatorErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-09-30 20:34:15,923 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 20:34:15,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1557173637, now seen corresponding path program 1 times [2018-09-30 20:34:15,923 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 20:34:15,923 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 20:34:15,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:15,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:34:15,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:34:16,090 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-09-30 20:34:16,091 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 20:34:16,091 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-30 20:34:16,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-30 20:34:16,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-30 20:34:16,092 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 20:34:16,092 INFO L87 Difference]: Start difference. First operand 1176 states and 1825 transitions. Second operand 4 states. [2018-09-30 20:34:16,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 20:34:16,603 INFO L93 Difference]: Finished difference Result 2655 states and 4085 transitions. [2018-09-30 20:34:16,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-30 20:34:16,604 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2018-09-30 20:34:16,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 20:34:16,614 INFO L225 Difference]: With dead ends: 2655 [2018-09-30 20:34:16,615 INFO L226 Difference]: Without dead ends: 1510 [2018-09-30 20:34:16,617 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time [2018-09-30 20:34:16,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2018-09-30 20:34:16,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1468. [2018-09-30 20:34:16,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1468 states. [2018-09-30 20:34:16,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 2236 transitions. [2018-09-30 20:34:16,673 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 2236 transitions. Word has length 67 [2018-09-30 20:34:16,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 20:34:16,674 INFO L480 AbstractCegarLoop]: Abstraction has 1468 states and 2236 transitions. [2018-09-30 20:34:16,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-30 20:34:16,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 2236 transitions. [2018-09-30 20:34:16,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-09-30 20:34:16,676 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 20:34:16,676 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 20:34:16,677 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ElevatorErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-09-30 20:34:16,677 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 20:34:16,677 INFO L82 PathProgramCache]: Analyzing trace with hash -423460397, now seen corresponding path program 1 times [2018-09-30 20:34:16,677 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 20:34:16,678 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 20:34:16,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:16,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:34:16,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:34:16,769 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-09-30 20:34:16,770 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 20:34:16,770 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-30 20:34:16,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-30 20:34:16,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-30 20:34:16,771 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 20:34:16,771 INFO L87 Difference]: Start difference. First operand 1468 states and 2236 transitions. Second operand 4 states. [2018-09-30 20:34:17,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 20:34:17,015 INFO L93 Difference]: Finished difference Result 2726 states and 4172 transitions. [2018-09-30 20:34:17,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 20:34:17,025 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 68 [2018-09-30 20:34:17,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 20:34:17,032 INFO L225 Difference]: With dead ends: 2726 [2018-09-30 20:34:17,032 INFO L226 Difference]: Without dead ends: 1469 [2018-09-30 20:34:17,035 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 20:34:17,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2018-09-30 20:34:17,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1466. [2018-09-30 20:34:17,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1466 states. [2018-09-30 20:34:17,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 2172 transitions. [2018-09-30 20:34:17,080 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 2172 transitions. Word has length 68 [2018-09-30 20:34:17,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 20:34:17,080 INFO L480 AbstractCegarLoop]: Abstraction has 1466 states and 2172 transitions. [2018-09-30 20:34:17,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-30 20:34:17,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 2172 transitions. [2018-09-30 20:34:17,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-09-30 20:34:17,083 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 20:34:17,083 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 20:34:17,083 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ElevatorErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-09-30 20:34:17,084 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 20:34:17,084 INFO L82 PathProgramCache]: Analyzing trace with hash -734626103, now seen corresponding path program 2 times [2018-09-30 20:34:17,084 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 20:34:17,084 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 20:34:17,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:17,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:34:17,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:34:17,180 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-09-30 20:34:17,180 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 20:34:17,180 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-30 20:34:17,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 20:34:17,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 20:34:17,181 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 20:34:17,182 INFO L87 Difference]: Start difference. First operand 1466 states and 2172 transitions. Second operand 3 states. [2018-09-30 20:34:17,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 20:34:17,537 INFO L93 Difference]: Finished difference Result 2942 states and 4353 transitions. [2018-09-30 20:34:17,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 20:34:17,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2018-09-30 20:34:17,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 20:34:17,547 INFO L225 Difference]: With dead ends: 2942 [2018-09-30 20:34:17,547 INFO L226 Difference]: Without dead ends: 1457 [2018-09-30 20:34:17,549 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 20:34:17,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2018-09-30 20:34:17,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1397. [2018-09-30 20:34:17,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1397 states. [2018-09-30 20:34:17,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 2012 transitions. [2018-09-30 20:34:17,592 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 2012 transitions. Word has length 69 [2018-09-30 20:34:17,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 20:34:17,592 INFO L480 AbstractCegarLoop]: Abstraction has 1397 states and 2012 transitions. [2018-09-30 20:34:17,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 20:34:17,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 2012 transitions. [2018-09-30 20:34:17,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-09-30 20:34:17,595 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 20:34:17,595 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 20:34:17,595 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ElevatorErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-09-30 20:34:17,595 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 20:34:17,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1023158359, now seen corresponding path program 1 times [2018-09-30 20:34:17,596 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 20:34:17,596 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 20:34:17,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:17,597 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-30 20:34:17,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:17,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:34:17,718 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-09-30 20:34:17,719 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 20:34:17,719 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-30 20:34:17,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 20:34:17,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 20:34:17,719 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 20:34:17,720 INFO L87 Difference]: Start difference. First operand 1397 states and 2012 transitions. Second operand 3 states. [2018-09-30 20:34:17,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 20:34:17,828 INFO L93 Difference]: Finished difference Result 3297 states and 4763 transitions. [2018-09-30 20:34:17,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 20:34:17,832 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2018-09-30 20:34:17,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 20:34:17,840 INFO L225 Difference]: With dead ends: 3297 [2018-09-30 20:34:17,840 INFO L226 Difference]: Without dead ends: 1830 [2018-09-30 20:34:17,843 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 20:34:17,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1830 states. [2018-09-30 20:34:17,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1830 to 1612. [2018-09-30 20:34:17,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1612 states. [2018-09-30 20:34:17,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2296 transitions. [2018-09-30 20:34:17,888 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2296 transitions. Word has length 84 [2018-09-30 20:34:17,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 20:34:17,889 INFO L480 AbstractCegarLoop]: Abstraction has 1612 states and 2296 transitions. [2018-09-30 20:34:17,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 20:34:17,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2296 transitions. [2018-09-30 20:34:17,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-09-30 20:34:17,892 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 20:34:17,892 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 20:34:17,892 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ElevatorErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-09-30 20:34:17,892 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 20:34:17,892 INFO L82 PathProgramCache]: Analyzing trace with hash -147951611, now seen corresponding path program 1 times [2018-09-30 20:34:17,893 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 20:34:17,893 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 20:34:17,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:17,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:34:17,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:34:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:34:18,667 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 16 proven. 116 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-09-30 20:34:18,667 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 20:34:18,668 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 20:34:18,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:34:18,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:34:18,734 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 20:34:20,982 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 31 proven. 100 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-09-30 20:34:21,002 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 20:34:21,003 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2018-09-30 20:34:21,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-30 20:34:21,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-30 20:34:21,003 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 20:34:21,004 INFO L87 Difference]: Start difference. First operand 1612 states and 2296 transitions. Second operand 14 states. [2018-09-30 20:34:24,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 20:34:24,026 INFO L93 Difference]: Finished difference Result 3111 states and 4394 transitions. [2018-09-30 20:34:24,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-30 20:34:24,027 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 85 [2018-09-30 20:34:24,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 20:34:24,028 INFO L225 Difference]: With dead ends: 3111 [2018-09-30 20:34:24,028 INFO L226 Difference]: Without dead ends: 0 [2018-09-30 20:34:24,032 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 78 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9s Time [2018-09-30 20:34:24,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-30 20:34:24,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-30 20:34:24,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-30 20:34:24,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-30 20:34:24,033 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2018-09-30 20:34:24,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 20:34:24,033 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-30 20:34:24,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-30 20:34:24,034 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-30 20:34:24,034 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-30 20:34:24,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-30 20:34:24,416 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-30 20:34:24,602 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-30 20:34:24,667 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-30 20:34:25,067 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-30 20:34:25,148 WARN L178 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 324 DAG size of output: 259 [2018-09-30 20:34:27,953 WARN L178 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 251 DAG size of output: 35 [2018-09-30 20:34:27,956 INFO L426 ceAbstractionStarter]: For program point L143(lines 143 161) no Hoare annotation was computed. [2018-09-30 20:34:27,956 INFO L426 ceAbstractionStarter]: For program point L127(lines 127 138) no Hoare annotation was computed. [2018-09-30 20:34:27,956 INFO L426 ceAbstractionStarter]: For program point ElevatorErr0ASSERT_VIOLATIONINVARIANTandASSERT(lines 48 55) no Hoare annotation was computed. [2018-09-30 20:34:27,956 INFO L426 ceAbstractionStarter]: For program point L70-1(lines 70 96) no Hoare annotation was computed. [2018-09-30 20:34:27,956 INFO L426 ceAbstractionStarter]: For program point L153(lines 153 161) no Hoare annotation was computed. [2018-09-30 20:34:27,956 INFO L426 ceAbstractionStarter]: For program point L87(lines 87 96) no Hoare annotation was computed. [2018-09-30 20:34:27,956 INFO L426 ceAbstractionStarter]: For program point L112(lines 112 120) no Hoare annotation was computed. [2018-09-30 20:34:27,956 INFO L426 ceAbstractionStarter]: For program point L79(lines 79 96) no Hoare annotation was computed. [2018-09-30 20:34:27,957 INFO L426 ceAbstractionStarter]: For program point L146(lines 146 161) no Hoare annotation was computed. [2018-09-30 20:34:27,957 INFO L426 ceAbstractionStarter]: For program point L47-1(lines 13 164) no Hoare annotation was computed. [2018-09-30 20:34:27,957 INFO L426 ceAbstractionStarter]: For program point L130(lines 130 138) no Hoare annotation was computed. [2018-09-30 20:34:27,957 INFO L426 ceAbstractionStarter]: For program point L89(lines 89 96) no Hoare annotation was computed. [2018-09-30 20:34:27,957 INFO L426 ceAbstractionStarter]: For program point L156(lines 156 161) no Hoare annotation was computed. [2018-09-30 20:34:27,957 INFO L422 ceAbstractionStarter]: At program point L156-2(lines 47 162) the Hoare annotation is: (let ((.cse5 (and (<= Elevator_min Elevator_current) (<= Elevator_current Elevator_max))) (.cse0 (not (= Elevator_min Elevator_goal))) (.cse1 (<= Elevator_min Elevator_goal)) (.cse2 (= Elevator_min Elevator_current)) (.cse3 (<= (+ Elevator_min 1) Elevator_max)) (.cse4 (<= Elevator_qDC1 1))) (or (and .cse0 .cse1 .cse2 (= Elevator_dir 1) .cse3 .cse4) (and (and .cse4 (not Elevator_passed)) .cse5) (and (= Elevator_qDC1 2) .cse5) (and (and (not (= Elevator_qCSP 3)) .cse2 .cse3 .cse4) .cse0 .cse1) (and .cse2 .cse3 .cse4 (= Elevator_qCSP 1)))) [2018-09-30 20:34:27,957 INFO L426 ceAbstractionStarter]: For program point L115(lines 115 120) no Hoare annotation was computed. [2018-09-30 20:34:27,957 INFO L426 ceAbstractionStarter]: For program point L82(lines 82 96) no Hoare annotation was computed. [2018-09-30 20:34:27,957 INFO L426 ceAbstractionStarter]: For program point L115-2(lines 99 138) no Hoare annotation was computed. [2018-09-30 20:34:27,957 INFO L426 ceAbstractionStarter]: For program point L107(lines 107 120) no Hoare annotation was computed. [2018-09-30 20:34:27,958 INFO L426 ceAbstractionStarter]: For program point ElevatorEXIT(lines 13 164) no Hoare annotation was computed. [2018-09-30 20:34:27,958 INFO L426 ceAbstractionStarter]: For program point L91(lines 91 96) no Hoare annotation was computed. [2018-09-30 20:34:27,958 INFO L426 ceAbstractionStarter]: For program point L91-2(lines 77 120) no Hoare annotation was computed. [2018-09-30 20:34:27,958 INFO L426 ceAbstractionStarter]: For program point L149(lines 149 161) no Hoare annotation was computed. [2018-09-30 20:34:27,958 INFO L426 ceAbstractionStarter]: For program point L133(lines 133 138) no Hoare annotation was computed. [2018-09-30 20:34:27,958 INFO L426 ceAbstractionStarter]: For program point L67(lines 67 69) no Hoare annotation was computed. [2018-09-30 20:34:27,958 INFO L426 ceAbstractionStarter]: For program point L133-2(lines 123 161) no Hoare annotation was computed. [2018-09-30 20:34:27,958 INFO L426 ceAbstractionStarter]: For program point L67-2(lines 67 72) no Hoare annotation was computed. [2018-09-30 20:34:27,958 INFO L426 ceAbstractionStarter]: For program point ElevatorENTRY(lines 13 164) no Hoare annotation was computed. [2018-09-30 20:34:27,958 INFO L426 ceAbstractionStarter]: For program point L84(lines 84 96) no Hoare annotation was computed. [2018-09-30 20:34:27,958 INFO L426 ceAbstractionStarter]: For program point L101(lines 101 120) no Hoare annotation was computed. [2018-09-30 20:34:27,970 INFO L202 PluginConnector]: Adding new model ElevatorWithAssignments.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.09 08:34:27 BoogieIcfgContainer [2018-09-30 20:34:27,970 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-30 20:34:27,971 INFO L168 Benchmark]: Toolchain (without parser) took 20083.80 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 124.3 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 344.8 MB). Peak memory consumption was 594.9 MB. Max. memory is 7.1 GB. [2018-09-30 20:34:27,973 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-30 20:34:27,974 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.83 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-30 20:34:27,974 INFO L168 Benchmark]: Boogie Preprocessor took 47.44 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-30 20:34:27,975 INFO L168 Benchmark]: RCFGBuilder took 754.42 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-30 20:34:27,976 INFO L168 Benchmark]: TraceAbstraction took 19226.99 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 124.3 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 313.0 MB). Peak memory consumption was 563.2 MB. Max. memory is 7.1 GB. [2018-09-30 20:34:27,981 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 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.83 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.44 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 754.42 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19226.99 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 124.3 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 313.0 MB). Peak memory consumption was 563.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: loop invariant is valid and assertion always holds For all program executions holds that loop invariant is valid and assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((((((((!(min == goal) && min <= goal) && min == current) && dir == 1) && min + 1 <= max) && qDC1 <= 1) || ((qDC1 <= 1 && !passed) && min <= current && current <= max)) || (qDC1 == 2 && min <= current && current <= max)) || (((((!(qCSP == 3) && min == current) && min + 1 <= max) && qDC1 <= 1) && !(min == goal)) && min <= goal)) || (((min == current && min + 1 <= max) && qDC1 <= 1) && qCSP == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 1 error locations. SAFE Result, 19.1s OverallTime, 14 OverallIterations, 5 TraceHistogramMax, 8.7s AutomataDifference, 0.0s DeadEndRemovalTime, 3.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 896 SDtfs, 1112 SDslu, 1459 SDs, 0 SdLazy, 840 SolverSat, 105 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 189 GetRequests, 142 SyntacticMatches, 7 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1612occurred in iteration=13, 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: 0.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 809 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 135 NumberOfFragments, 87 HoareAnnotationTreeSize, 1 FomulaSimplifications, 8391 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 1 FomulaSimplificationsInter, 9442 FormulaSimplificationTreeSizeReductionInter, 2.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 778 NumberOfCodeBlocks, 778 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 762 ConstructedInterpolants, 0 QuantifiedInterpolants, 676593 SizeOfPredicates, 4 NumberOfNonLiveVariables, 351 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 625/891 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/ElevatorWithAssignments.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-30_20-34-27-995.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/ElevatorWithAssignments.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-30_20-34-27-995.csv Received shutdown request...