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-b8f97f7-m [2018-10-10 15:45:52,427 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:45:52,428 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:45:52,442 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:45:52,443 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:45:52,444 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:45:52,445 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:45:52,447 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:45:52,449 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:45:52,449 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:45:52,450 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-10 15:45:52,474 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-10 15:45:52,486 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:45:52,490 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:45:52,491 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:45:52,491 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:45:52,491 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:45:52,491 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:45:52,493 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:45:52,493 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:45:52,493 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:45:52,494 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:45:52,494 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:45:52,494 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:45:52,494 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:45:52,496 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:45:52,496 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:45:52,544 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:45:52,560 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:45:52,564 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:45:52,566 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:45:52,566 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:45:52,567 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_50.bpl [2018-10-10 15:45:52,568 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_50.bpl' [2018-10-10 15:45:52,640 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:45:52,642 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:45:52,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:45:52,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:45:52,643 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:45:52,670 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 10.10 03:45:52" (1/1) ... [2018-10-10 15:45:52,672 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 10.10 03:45:52" (1/1) ... [2018-10-10 15:45:52,699 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 10.10 03:45:52" (1/1) ... [2018-10-10 15:45:52,699 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 10.10 03:45:52" (1/1) ... [2018-10-10 15:45:52,722 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 10.10 03:45:52" (1/1) ... [2018-10-10 15:45:52,728 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 10.10 03:45:52" (1/1) ... [2018-10-10 15:45:52,734 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 10.10 03:45:52" (1/1) ... [2018-10-10 15:45:52,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:45:52,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:45:52,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:45:52,742 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:45:52,746 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 10.10 03:45:52" (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 [2018-10-10 15:45:52,808 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:45:52,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:45:52,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:45:53,716 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:45:53,717 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 10.10 03:45:53 BoogieIcfgContainer [2018-10-10 15:45:53,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:45:53,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:45:53,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:45:53,725 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:45:53,725 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 10.10 03:45:52" (1/2) ... [2018-10-10 15:45:53,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4c4f29 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 10.10 03:45:53, skipping insertion in model container [2018-10-10 15:45:53,727 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 10.10 03:45:53" (2/2) ... [2018-10-10 15:45:53,729 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_50.bpl [2018-10-10 15:45:53,739 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:45:53,751 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:45:53,778 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:45:53,812 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:45:53,813 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:45:53,813 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:45:53,813 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:45:53,813 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:45:53,813 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:45:53,814 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:45:53,815 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:45:53,815 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:45:53,845 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states. [2018-10-10 15:45:53,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-10-10 15:45:53,873 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:45:53,875 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] [2018-10-10 15:45:53,876 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:45:53,883 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:45:53,884 INFO L82 PathProgramCache]: Analyzing trace with hash 754087745, now seen corresponding path program 1 times [2018-10-10 15:45:53,950 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:45:54,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:45:54,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:45:54,809 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:45:54,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-10 15:45:54,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-10 15:45:54,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-10 15:45:54,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-10-10 15:45:54,836 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 12 states. [2018-10-10 15:45:56,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:45:56,610 INFO L93 Difference]: Finished difference Result 180 states and 181 transitions. [2018-10-10 15:45:56,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-10 15:45:56,613 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2018-10-10 15:45:56,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:45:56,628 INFO L225 Difference]: With dead ends: 180 [2018-10-10 15:45:56,628 INFO L226 Difference]: Without dead ends: 180 [2018-10-10 15:45:56,631 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=205, Invalid=725, Unknown=0, NotChecked=0, Total=930 [2018-10-10 15:45:56,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2018-10-10 15:45:56,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 131. [2018-10-10 15:45:56,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-10-10 15:45:56,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 132 transitions. [2018-10-10 15:45:56,682 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 132 transitions. Word has length 96 [2018-10-10 15:45:56,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:45:56,684 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 132 transitions. [2018-10-10 15:45:56,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-10 15:45:56,684 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 132 transitions. [2018-10-10 15:45:56,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-10-10 15:45:56,689 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:45:56,689 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] [2018-10-10 15:45:56,690 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:45:56,690 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:45:56,691 INFO L82 PathProgramCache]: Analyzing trace with hash -317951248, now seen corresponding path program 1 times [2018-10-10 15:45:56,692 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:45:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:45:57,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-10 15:45:57,139 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:45:57,139 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-10-10 15:45:57,141 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-10 15:45:57,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-10 15:45:57,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-10-10 15:45:57,142 INFO L87 Difference]: Start difference. First operand 131 states and 132 transitions. Second operand 10 states. [2018-10-10 15:45:57,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:45:57,925 INFO L93 Difference]: Finished difference Result 163 states and 164 transitions. [2018-10-10 15:45:57,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-10 15:45:57,925 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 117 [2018-10-10 15:45:57,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:45:57,930 INFO L225 Difference]: With dead ends: 163 [2018-10-10 15:45:57,931 INFO L226 Difference]: Without dead ends: 163 [2018-10-10 15:45:57,932 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 [2018-10-10 15:45:57,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-10-10 15:45:57,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 136. [2018-10-10 15:45:57,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-10-10 15:45:57,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 137 transitions. [2018-10-10 15:45:57,948 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 137 transitions. Word has length 117 [2018-10-10 15:45:57,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:45:57,949 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 137 transitions. [2018-10-10 15:45:57,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-10 15:45:57,949 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 137 transitions. [2018-10-10 15:45:57,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-10-10 15:45:57,952 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:45:57,952 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] [2018-10-10 15:45:57,953 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:45:57,953 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:45:57,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1987007751, now seen corresponding path program 1 times [2018-10-10 15:45:57,954 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:45:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:45:58,728 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:45:58,729 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:45:58,729 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-10-10 15:45:58,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-10-10 15:45:58,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-10-10 15:45:58,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2018-10-10 15:45:58,731 INFO L87 Difference]: Start difference. First operand 136 states and 137 transitions. Second operand 24 states. [2018-10-10 15:45:59,938 WARN L178 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2018-10-10 15:46:00,125 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2018-10-10 15:46:00,417 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2018-10-10 15:46:00,669 WARN L178 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2018-10-10 15:46:02,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:46:02,195 INFO L93 Difference]: Finished difference Result 206 states and 208 transitions. [2018-10-10 15:46:02,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-10-10 15:46:02,195 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 135 [2018-10-10 15:46:02,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:46:02,198 INFO L225 Difference]: With dead ends: 206 [2018-10-10 15:46:02,198 INFO L226 Difference]: Without dead ends: 206 [2018-10-10 15:46:02,200 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 [2018-10-10 15:46:02,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-10-10 15:46:02,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 154. [2018-10-10 15:46:02,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-10-10 15:46:02,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 155 transitions. [2018-10-10 15:46:02,211 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 155 transitions. Word has length 135 [2018-10-10 15:46:02,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:46:02,212 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 155 transitions. [2018-10-10 15:46:02,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-10-10 15:46:02,212 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 155 transitions. [2018-10-10 15:46:02,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-10-10 15:46:02,214 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:46:02,215 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] [2018-10-10 15:46:02,215 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:46:02,215 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:46:02,216 INFO L82 PathProgramCache]: Analyzing trace with hash 225727170, now seen corresponding path program 2 times [2018-10-10 15:46:02,217 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:46:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:46:03,143 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:46:03,144 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:46:03,144 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-10-10 15:46:03,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-10-10 15:46:03,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-10-10 15:46:03,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2018-10-10 15:46:03,145 INFO L87 Difference]: Start difference. First operand 154 states and 155 transitions. Second operand 21 states. [2018-10-10 15:46:05,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:46:05,743 INFO L93 Difference]: Finished difference Result 232 states and 233 transitions. [2018-10-10 15:46:05,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-10-10 15:46:05,744 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 153 [2018-10-10 15:46:05,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:46:05,746 INFO L225 Difference]: With dead ends: 232 [2018-10-10 15:46:05,747 INFO L226 Difference]: Without dead ends: 194 [2018-10-10 15:46:05,749 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=276, Invalid=2076, Unknown=0, NotChecked=0, Total=2352 [2018-10-10 15:46:05,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2018-10-10 15:46:05,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 175. [2018-10-10 15:46:05,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-10-10 15:46:05,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 176 transitions. [2018-10-10 15:46:05,759 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 176 transitions. Word has length 153 [2018-10-10 15:46:05,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:46:05,759 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 176 transitions. [2018-10-10 15:46:05,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-10-10 15:46:05,760 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 176 transitions. [2018-10-10 15:46:05,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-10-10 15:46:05,762 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:46:05,763 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] [2018-10-10 15:46:05,763 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:46:05,763 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:46:05,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1530496499, now seen corresponding path program 3 times [2018-10-10 15:46:05,764 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:46:05,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:46:06,623 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-10 15:46:08,128 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:46:08,128 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:46:08,128 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2018-10-10 15:46:08,129 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-10-10 15:46:08,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-10-10 15:46:08,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1710, Unknown=0, NotChecked=0, Total=1806 [2018-10-10 15:46:08,130 INFO L87 Difference]: Start difference. First operand 175 states and 176 transitions. Second operand 43 states. [2018-10-10 15:46:14,523 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 41 [2018-10-10 15:46:16,488 WARN L178 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2018-10-10 15:46:17,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:46:17,153 INFO L93 Difference]: Finished difference Result 245 states and 247 transitions. [2018-10-10 15:46:17,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2018-10-10 15:46:17,154 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 174 [2018-10-10 15:46:17,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:46:17,158 INFO L225 Difference]: With dead ends: 245 [2018-10-10 15:46:17,158 INFO L226 Difference]: Without dead ends: 245 [2018-10-10 15:46:17,161 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1755 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=628, Invalid=8114, Unknown=0, NotChecked=0, Total=8742 [2018-10-10 15:46:17,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2018-10-10 15:46:17,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 193. [2018-10-10 15:46:17,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2018-10-10 15:46:17,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 194 transitions. [2018-10-10 15:46:17,184 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 194 transitions. Word has length 174 [2018-10-10 15:46:17,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:46:17,184 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 194 transitions. [2018-10-10 15:46:17,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-10-10 15:46:17,185 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 194 transitions. [2018-10-10 15:46:17,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-10-10 15:46:17,193 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:46:17,194 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] [2018-10-10 15:46:17,194 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:46:17,194 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:46:17,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1262607556, now seen corresponding path program 4 times [2018-10-10 15:46:17,195 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:46:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:46:18,584 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 12 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:46:18,584 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:46:18,584 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2018-10-10 15:46:18,585 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-10-10 15:46:18,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-10-10 15:46:18,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1255, Unknown=0, NotChecked=0, Total=1332 [2018-10-10 15:46:18,586 INFO L87 Difference]: Start difference. First operand 193 states and 194 transitions. Second operand 37 states. [2018-10-10 15:46:24,868 WARN L178 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2018-10-10 15:46:24,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:46:24,997 INFO L93 Difference]: Finished difference Result 289 states and 290 transitions. [2018-10-10 15:46:24,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-10-10 15:46:24,998 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 192 [2018-10-10 15:46:24,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:46:25,000 INFO L225 Difference]: With dead ends: 289 [2018-10-10 15:46:25,000 INFO L226 Difference]: Without dead ends: 233 [2018-10-10 15:46:25,004 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1723 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=805, Invalid=7937, Unknown=0, NotChecked=0, Total=8742 [2018-10-10 15:46:25,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2018-10-10 15:46:25,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 214. [2018-10-10 15:46:25,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2018-10-10 15:46:25,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 215 transitions. [2018-10-10 15:46:25,010 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 215 transitions. Word has length 192 [2018-10-10 15:46:25,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:46:25,011 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 215 transitions. [2018-10-10 15:46:25,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-10-10 15:46:25,011 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 215 transitions. [2018-10-10 15:46:25,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2018-10-10 15:46:25,014 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:46:25,015 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] [2018-10-10 15:46:25,015 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:46:25,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:46:25,015 INFO L82 PathProgramCache]: Analyzing trace with hash -955208981, now seen corresponding path program 5 times [2018-10-10 15:46:25,016 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:46:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:46:26,272 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 29 proven. 77 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-10-10 15:46:26,272 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:46:26,272 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-10-10 15:46:26,273 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-10-10 15:46:26,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-10-10 15:46:26,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1173, Unknown=0, NotChecked=0, Total=1260 [2018-10-10 15:46:26,274 INFO L87 Difference]: Start difference. First operand 214 states and 215 transitions. Second operand 36 states. [2018-10-10 15:46:28,897 WARN L178 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 27 [2018-10-10 15:46:30,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:46:30,510 INFO L93 Difference]: Finished difference Result 202 states and 202 transitions. [2018-10-10 15:46:30,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-10-10 15:46:30,511 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 213 [2018-10-10 15:46:30,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:46:30,512 INFO L225 Difference]: With dead ends: 202 [2018-10-10 15:46:30,512 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:46:30,515 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1518 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=571, Invalid=6071, Unknown=0, NotChecked=0, Total=6642 [2018-10-10 15:46:30,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:46:30,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:46:30,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:46:30,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:46:30,516 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 213 [2018-10-10 15:46:30,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:46:30,516 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:46:30,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-10-10 15:46:30,516 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:46:30,516 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:46:30,521 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 10.10 03:46:30 BoogieIcfgContainer [2018-10-10 15:46:30,522 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:46:30,523 INFO L168 Benchmark]: Toolchain (without parser) took 37882.29 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 377.0 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 396.6 MB). Peak memory consumption was 773.5 MB. Max. memory is 7.1 GB. [2018-10-10 15:46:30,524 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 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. [2018-10-10 15:46:30,525 INFO L168 Benchmark]: Boogie Preprocessor took 98.41 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. [2018-10-10 15:46:30,525 INFO L168 Benchmark]: RCFGBuilder took 976.51 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. [2018-10-10 15:46:30,526 INFO L168 Benchmark]: TraceAbstraction took 36802.77 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 377.0 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 354.3 MB). Peak memory consumption was 731.3 MB. Max. memory is 7.1 GB. [2018-10-10 15:46:30,530 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 0.19 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 98.41 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 976.51 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 36802.77 ms. Allocated memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: 377.0 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 354.3 MB). Peak memory consumption was 731.3 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, 36.7s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 28.3s 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, 21.7s 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 218 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 7.1s 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-0-2018-10-10_15-46-30-542.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-0-2018-10-10_15-46-30-542.csv Received shutdown request...