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/AutomizerBpl.xml -s ../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf -i ../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_50.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:53:13,461 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:53:13,463 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:53:13,476 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:53:13,476 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:53:13,477 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:53:13,478 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:53:13,480 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:53:13,482 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:53:13,483 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:53:13,484 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-14 16:53:13,508 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-14 16:53:13,525 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:53:13,525 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:53:13,526 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:53:13,526 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:53:13,526 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:53:13,526 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:53:13,530 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:53:13,530 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:53:13,530 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:53:13,530 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:53:13,531 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:53:13,531 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:53:13,531 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:53:13,532 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:53:13,532 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:53:13,587 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:53:13,601 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:53:13,606 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:53:13,608 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:53:13,609 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:53:13,609 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_50.bpl [2018-10-14 16:53:13,610 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_50.bpl' [2018-10-14 16:53:13,705 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:53:13,707 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:53:13,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:53:13,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:53:13,708 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:53:13,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_50.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:13" (1/1) ... [2018-10-14 16:53:13,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_50.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:13" (1/1) ... [2018-10-14 16:53:13,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_50.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:13" (1/1) ... [2018-10-14 16:53:13,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_50.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:13" (1/1) ... [2018-10-14 16:53:13,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_50.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:13" (1/1) ... [2018-10-14 16:53:13,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_50.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:13" (1/1) ... [2018-10-14 16:53:13,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_50.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:13" (1/1) ... [2018-10-14 16:53:13,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:53:13,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:53:13,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:53:13,782 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:53:13,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_50.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:13" (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:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-14 16:53:13,871 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:53:13,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:53:13,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:53:14,752 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:53:14,753 INFO L202 PluginConnector]: Adding new model sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_50.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:53:14 BoogieIcfgContainer [2018-10-14 16:53:14,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:53:14,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:53:14,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:53:14,758 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:53:14,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_50.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:13" (1/2) ... [2018-10-14 16:53:14,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfe47c1 and model type sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_50.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:53:14, skipping insertion in model container [2018-10-14 16:53:14,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_50.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:53:14" (2/2) ... [2018-10-14 16:53:14,761 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_50.bpl [2018-10-14 16:53:14,771 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:53:14,779 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:53:14,797 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:53:14,825 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:53:14,826 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:53:14,826 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:53:14,827 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:53:14,827 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:53:14,827 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:53:14,827 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:53:14,827 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:53:14,827 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:53:14,849 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states. [2018-10-14 16:53:14,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-10-14 16:53:14,862 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:53:14,863 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:53:14,864 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:53:14,870 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:53:14,871 INFO L82 PathProgramCache]: Analyzing trace with hash 754087745, now seen corresponding path program 1 times [2018-10-14 16:53:14,922 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:53:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:53:15,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:53:15,546 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:53:15,546 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-14 16:53:15,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-14 16:53:15,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-14 16:53:15,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-10-14 16:53:15,572 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 12 states. [2018-10-14 16:53:17,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:53:17,578 INFO L93 Difference]: Finished difference Result 180 states and 181 transitions. [2018-10-14 16:53:17,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-14 16:53:17,581 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2018-10-14 16:53:17,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:53:17,597 INFO L225 Difference]: With dead ends: 180 [2018-10-14 16:53:17,597 INFO L226 Difference]: Without dead ends: 180 [2018-10-14 16:53:17,600 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=205, Invalid=725, Unknown=0, NotChecked=0, Total=930 [2018-10-14 16:53:17,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2018-10-14 16:53:17,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 131. [2018-10-14 16:53:17,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-10-14 16:53:17,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 132 transitions. [2018-10-14 16:53:17,650 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 132 transitions. Word has length 96 [2018-10-14 16:53:17,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:53:17,651 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 132 transitions. [2018-10-14 16:53:17,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-14 16:53:17,652 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 132 transitions. [2018-10-14 16:53:17,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-10-14 16:53:17,657 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:53:17,657 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:53:17,658 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:53:17,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:53:17,658 INFO L82 PathProgramCache]: Analyzing trace with hash -317951248, now seen corresponding path program 1 times [2018-10-14 16:53:17,659 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:53:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:53:18,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-14 16:53:18,138 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:53:18,138 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-10-14 16:53:18,140 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-14 16:53:18,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-14 16:53:18,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-10-14 16:53:18,141 INFO L87 Difference]: Start difference. First operand 131 states and 132 transitions. Second operand 10 states. [2018-10-14 16:53:18,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:53:18,968 INFO L93 Difference]: Finished difference Result 163 states and 164 transitions. [2018-10-14 16:53:18,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-14 16:53:18,968 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 117 [2018-10-14 16:53:18,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:53:18,971 INFO L225 Difference]: With dead ends: 163 [2018-10-14 16:53:18,971 INFO L226 Difference]: Without dead ends: 163 [2018-10-14 16:53:18,972 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2018-10-14 16:53:18,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-10-14 16:53:18,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 136. [2018-10-14 16:53:18,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-10-14 16:53:18,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 137 transitions. [2018-10-14 16:53:18,987 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 137 transitions. Word has length 117 [2018-10-14 16:53:18,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:53:18,987 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 137 transitions. [2018-10-14 16:53:18,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-14 16:53:18,988 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 137 transitions. [2018-10-14 16:53:18,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-10-14 16:53:18,990 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:53:18,990 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:53:18,991 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:53:18,991 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:53:18,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1987007751, now seen corresponding path program 1 times [2018-10-14 16:53:18,992 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:53:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:53:19,812 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:53:19,813 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:53:19,813 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-10-14 16:53:19,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-10-14 16:53:19,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-10-14 16:53:19,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2018-10-14 16:53:19,815 INFO L87 Difference]: Start difference. First operand 136 states and 137 transitions. Second operand 24 states. [2018-10-14 16:53:20,937 WARN L179 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2018-10-14 16:53:21,105 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2018-10-14 16:53:21,375 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2018-10-14 16:53:21,640 WARN L179 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2018-10-14 16:53:22,044 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2018-10-14 16:53:23,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:53:23,240 INFO L93 Difference]: Finished difference Result 206 states and 208 transitions. [2018-10-14 16:53:23,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-10-14 16:53:23,241 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 135 [2018-10-14 16:53:23,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:53:23,244 INFO L225 Difference]: With dead ends: 206 [2018-10-14 16:53:23,244 INFO L226 Difference]: Without dead ends: 206 [2018-10-14 16:53:23,246 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=431, Invalid=2431, Unknown=0, NotChecked=0, Total=2862 [2018-10-14 16:53:23,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-10-14 16:53:23,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 154. [2018-10-14 16:53:23,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-10-14 16:53:23,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 155 transitions. [2018-10-14 16:53:23,256 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 155 transitions. Word has length 135 [2018-10-14 16:53:23,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:53:23,257 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 155 transitions. [2018-10-14 16:53:23,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-10-14 16:53:23,257 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 155 transitions. [2018-10-14 16:53:23,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-10-14 16:53:23,260 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:53:23,260 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:53:23,260 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:53:23,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:53:23,261 INFO L82 PathProgramCache]: Analyzing trace with hash 225727170, now seen corresponding path program 2 times [2018-10-14 16:53:23,262 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:53:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:53:23,889 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:53:23,889 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:53:23,889 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-10-14 16:53:23,890 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-10-14 16:53:23,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-10-14 16:53:23,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2018-10-14 16:53:23,891 INFO L87 Difference]: Start difference. First operand 154 states and 155 transitions. Second operand 21 states. [2018-10-14 16:53:26,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:53:26,310 INFO L93 Difference]: Finished difference Result 232 states and 233 transitions. [2018-10-14 16:53:26,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-10-14 16:53:26,311 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 153 [2018-10-14 16:53:26,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:53:26,313 INFO L225 Difference]: With dead ends: 232 [2018-10-14 16:53:26,313 INFO L226 Difference]: Without dead ends: 194 [2018-10-14 16:53:26,318 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=276, Invalid=2076, Unknown=0, NotChecked=0, Total=2352 [2018-10-14 16:53:26,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2018-10-14 16:53:26,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 175. [2018-10-14 16:53:26,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-10-14 16:53:26,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 176 transitions. [2018-10-14 16:53:26,338 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 176 transitions. Word has length 153 [2018-10-14 16:53:26,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:53:26,338 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 176 transitions. [2018-10-14 16:53:26,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-10-14 16:53:26,339 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 176 transitions. [2018-10-14 16:53:26,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-10-14 16:53:26,344 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:53:26,344 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:53:26,344 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:53:26,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:53:26,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1530496499, now seen corresponding path program 3 times [2018-10-14 16:53:26,346 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:53:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:53:27,210 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-14 16:53:28,616 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:53:28,617 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:53:28,617 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2018-10-14 16:53:28,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-10-14 16:53:28,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-10-14 16:53:28,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1710, Unknown=0, NotChecked=0, Total=1806 [2018-10-14 16:53:28,619 INFO L87 Difference]: Start difference. First operand 175 states and 176 transitions. Second operand 43 states. [2018-10-14 16:53:34,909 WARN L179 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 41 [2018-10-14 16:53:37,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:53:37,247 INFO L93 Difference]: Finished difference Result 245 states and 247 transitions. [2018-10-14 16:53:37,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2018-10-14 16:53:37,250 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 174 [2018-10-14 16:53:37,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:53:37,252 INFO L225 Difference]: With dead ends: 245 [2018-10-14 16:53:37,252 INFO L226 Difference]: Without dead ends: 245 [2018-10-14 16:53:37,255 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1755 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=628, Invalid=8114, Unknown=0, NotChecked=0, Total=8742 [2018-10-14 16:53:37,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2018-10-14 16:53:37,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 193. [2018-10-14 16:53:37,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2018-10-14 16:53:37,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 194 transitions. [2018-10-14 16:53:37,263 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 194 transitions. Word has length 174 [2018-10-14 16:53:37,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:53:37,263 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 194 transitions. [2018-10-14 16:53:37,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-10-14 16:53:37,264 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 194 transitions. [2018-10-14 16:53:37,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-10-14 16:53:37,266 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:53:37,266 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:53:37,267 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:53:37,267 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:53:37,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1262607556, now seen corresponding path program 4 times [2018-10-14 16:53:37,268 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:53:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:53:38,546 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 12 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:53:38,546 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:53:38,546 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2018-10-14 16:53:38,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-10-14 16:53:38,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-10-14 16:53:38,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1255, Unknown=0, NotChecked=0, Total=1332 [2018-10-14 16:53:38,548 INFO L87 Difference]: Start difference. First operand 193 states and 194 transitions. Second operand 37 states. [2018-10-14 16:53:44,533 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2018-10-14 16:53:44,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:53:44,664 INFO L93 Difference]: Finished difference Result 289 states and 290 transitions. [2018-10-14 16:53:44,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-10-14 16:53:44,664 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 192 [2018-10-14 16:53:44,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:53:44,667 INFO L225 Difference]: With dead ends: 289 [2018-10-14 16:53:44,667 INFO L226 Difference]: Without dead ends: 233 [2018-10-14 16:53:44,670 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1723 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=805, Invalid=7937, Unknown=0, NotChecked=0, Total=8742 [2018-10-14 16:53:44,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2018-10-14 16:53:44,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 214. [2018-10-14 16:53:44,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2018-10-14 16:53:44,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 215 transitions. [2018-10-14 16:53:44,678 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 215 transitions. Word has length 192 [2018-10-14 16:53:44,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:53:44,678 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 215 transitions. [2018-10-14 16:53:44,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-10-14 16:53:44,678 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 215 transitions. [2018-10-14 16:53:44,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2018-10-14 16:53:44,681 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:53:44,682 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:53:44,682 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:53:44,682 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:53:44,682 INFO L82 PathProgramCache]: Analyzing trace with hash -955208981, now seen corresponding path program 5 times [2018-10-14 16:53:44,683 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:53:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:53:45,368 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-14 16:53:46,092 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 29 proven. 77 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-10-14 16:53:46,092 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:53:46,093 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-10-14 16:53:46,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-10-14 16:53:46,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-10-14 16:53:46,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1173, Unknown=0, NotChecked=0, Total=1260 [2018-10-14 16:53:46,094 INFO L87 Difference]: Start difference. First operand 214 states and 215 transitions. Second operand 36 states. [2018-10-14 16:53:50,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:53:50,197 INFO L93 Difference]: Finished difference Result 202 states and 202 transitions. [2018-10-14 16:53:50,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-10-14 16:53:50,197 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 213 [2018-10-14 16:53:50,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:53:50,198 INFO L225 Difference]: With dead ends: 202 [2018-10-14 16:53:50,198 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:53:50,201 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1518 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=571, Invalid=6071, Unknown=0, NotChecked=0, Total=6642 [2018-10-14 16:53:50,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:53:50,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:53:50,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:53:50,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:53:50,202 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 213 [2018-10-14 16:53:50,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:53:50,202 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:53:50,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-10-14 16:53:50,203 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:53:50,203 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:53:50,207 INFO L202 PluginConnector]: Adding new model sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_50.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:53:50 BoogieIcfgContainer [2018-10-14 16:53:50,207 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:53:50,208 INFO L168 Benchmark]: Toolchain (without parser) took 36502.05 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 372.2 MB). Free memory was 1.5 GB in the beginning and 1.0 GB in the end (delta: 436.7 MB). Peak memory consumption was 809.0 MB. Max. memory is 7.1 GB. [2018-10-14 16:53:50,209 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 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. [2018-10-14 16:53:50,210 INFO L168 Benchmark]: Boogie Preprocessor took 73.99 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. [2018-10-14 16:53:50,210 INFO L168 Benchmark]: RCFGBuilder took 971.38 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-14 16:53:50,211 INFO L168 Benchmark]: TraceAbstraction took 35452.56 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 372.2 MB). Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 394.4 MB). Peak memory consumption was 766.7 MB. Max. memory is 7.1 GB. [2018-10-14 16:53:50,215 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 0.20 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 73.99 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 971.38 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 35452.56 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 372.2 MB). Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 394.4 MB). Peak memory consumption was 766.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 237]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 132 locations, 1 error locations. SAFE Result, 35.3s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 27.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 692 SDtfs, 5040 SDslu, 10061 SDs, 0 SdLazy, 11469 SolverSat, 470 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 432 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 410 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6194 ImplicationChecksByTransitivity, 20.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=214occurred in iteration=6, 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, 7 MinimizatonAttempts, 218 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 1080 NumberOfCodeBlocks, 1080 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1073 ConstructedInterpolants, 0 QuantifiedInterpolants, 2057215 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 79/314 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/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_50.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-53-50-227.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_50.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-53-50-227.csv Received shutdown request...