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_27.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:52:35,379 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:52:35,382 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:52:35,396 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-10-14 16:52:35,453 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 16:52:35,474 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:52:35,474 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:52:35,478 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:52:35,478 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:52:35,478 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:52:35,478 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:52:35,479 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:52:35,479 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:52:35,479 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:52:35,480 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:52:35,480 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:52:35,480 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:52:35,480 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:52:35,482 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:52:35,482 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:52:35,532 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:52:35,547 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:52:35,555 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:52:35,557 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:52:35,558 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:52:35,558 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_27.bpl [2018-10-14 16:52:35,559 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_27.bpl' [2018-10-14 16:52:35,649 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:52:35,651 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:52:35,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:52:35,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:52:35,652 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:52:35,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_27.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:52:35" (1/1) ... [2018-10-14 16:52:35,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_27.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:52:35" (1/1) ... [2018-10-14 16:52:35,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_27.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:52:35" (1/1) ... [2018-10-14 16:52:35,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_27.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:52:35" (1/1) ... [2018-10-14 16:52:35,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_27.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:52:35" (1/1) ... [2018-10-14 16:52:35,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_27.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:52:35" (1/1) ... [2018-10-14 16:52:35,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_27.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:52:35" (1/1) ... [2018-10-14 16:52:35,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:52:35,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:52:35,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:52:35,739 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:52:35,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_27.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:52:35" (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 16:52:35,812 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:52:35,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:52:35,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:52:36,492 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:52:36,493 INFO L202 PluginConnector]: Adding new model sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_27.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:52:36 BoogieIcfgContainer [2018-10-14 16:52:36,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:52:36,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:52:36,495 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:52:36,499 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:52:36,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_27.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:52:35" (1/2) ... [2018-10-14 16:52:36,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13438d6b and model type sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_27.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:52:36, skipping insertion in model container [2018-10-14 16:52:36,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_27.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:52:36" (2/2) ... [2018-10-14 16:52:36,503 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_27.bpl [2018-10-14 16:52:36,516 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:52:36,528 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:52:36,546 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:52:36,581 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:52:36,582 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:52:36,582 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:52:36,582 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:52:36,583 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:52:36,583 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:52:36,583 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:52:36,583 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:52:36,583 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:52:36,609 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2018-10-14 16:52:36,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-10-14 16:52:36,629 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:52:36,630 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] [2018-10-14 16:52:36,631 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:52:36,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:52:36,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1830300664, now seen corresponding path program 1 times [2018-10-14 16:52:36,686 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:52:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:52:37,154 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 16:52:37,157 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:52:37,157 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-14 16:52:37,164 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-14 16:52:37,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-14 16:52:37,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-10-14 16:52:37,184 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 9 states. [2018-10-14 16:52:37,895 WARN L179 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-10-14 16:52:38,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:52:38,206 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2018-10-14 16:52:38,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-14 16:52:38,209 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 44 [2018-10-14 16:52:38,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:52:38,225 INFO L225 Difference]: With dead ends: 105 [2018-10-14 16:52:38,225 INFO L226 Difference]: Without dead ends: 97 [2018-10-14 16:52:38,228 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2018-10-14 16:52:38,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-10-14 16:52:38,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 92. [2018-10-14 16:52:38,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-10-14 16:52:38,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2018-10-14 16:52:38,273 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 44 [2018-10-14 16:52:38,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:52:38,274 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2018-10-14 16:52:38,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-14 16:52:38,274 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2018-10-14 16:52:38,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-10-14 16:52:38,277 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:52:38,278 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-14 16:52:38,278 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:52:38,279 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:52:38,279 INFO L82 PathProgramCache]: Analyzing trace with hash 419515053, now seen corresponding path program 1 times [2018-10-14 16:52:38,281 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:52:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:52:38,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:52:38,672 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:52:38,672 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-10-14 16:52:38,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-14 16:52:38,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-14 16:52:38,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2018-10-14 16:52:38,675 INFO L87 Difference]: Start difference. First operand 92 states and 92 transitions. Second operand 11 states. [2018-10-14 16:52:39,253 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-10-14 16:52:39,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:52:39,777 INFO L93 Difference]: Finished difference Result 167 states and 167 transitions. [2018-10-14 16:52:39,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-14 16:52:39,778 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 91 [2018-10-14 16:52:39,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:52:39,783 INFO L225 Difference]: With dead ends: 167 [2018-10-14 16:52:39,784 INFO L226 Difference]: Without dead ends: 159 [2018-10-14 16:52:39,785 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2018-10-14 16:52:39,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-10-14 16:52:39,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 139. [2018-10-14 16:52:39,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-10-14 16:52:39,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 139 transitions. [2018-10-14 16:52:39,799 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 139 transitions. Word has length 91 [2018-10-14 16:52:39,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:52:39,800 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 139 transitions. [2018-10-14 16:52:39,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-14 16:52:39,800 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 139 transitions. [2018-10-14 16:52:39,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-10-14 16:52:39,802 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:52:39,803 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-14 16:52:39,803 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:52:39,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:52:39,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1207921000, now seen corresponding path program 2 times [2018-10-14 16:52:39,804 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:52:39,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:52:40,465 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 16:52:40,465 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:52:40,466 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-10-14 16:52:40,466 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-14 16:52:40,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-14 16:52:40,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2018-10-14 16:52:40,467 INFO L87 Difference]: Start difference. First operand 139 states and 139 transitions. Second operand 15 states. [2018-10-14 16:52:42,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:52:42,451 INFO L93 Difference]: Finished difference Result 199 states and 199 transitions. [2018-10-14 16:52:42,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-10-14 16:52:42,452 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 138 [2018-10-14 16:52:42,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:52:42,455 INFO L225 Difference]: With dead ends: 199 [2018-10-14 16:52:42,455 INFO L226 Difference]: Without dead ends: 191 [2018-10-14 16:52:42,457 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=452, Invalid=1270, Unknown=0, NotChecked=0, Total=1722 [2018-10-14 16:52:42,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2018-10-14 16:52:42,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 186. [2018-10-14 16:52:42,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2018-10-14 16:52:42,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 186 transitions. [2018-10-14 16:52:42,476 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 186 transitions. Word has length 138 [2018-10-14 16:52:42,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:52:42,476 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 186 transitions. [2018-10-14 16:52:42,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-14 16:52:42,477 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 186 transitions. [2018-10-14 16:52:42,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-10-14 16:52:42,482 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:52:42,483 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-14 16:52:42,483 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:52:42,483 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:52:42,484 INFO L82 PathProgramCache]: Analyzing trace with hash -348272307, now seen corresponding path program 3 times [2018-10-14 16:52:42,485 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:52:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:52:43,304 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 113 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2018-10-14 16:52:43,305 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:52:43,305 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-10-14 16:52:43,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-10-14 16:52:43,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-10-14 16:52:43,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2018-10-14 16:52:43,306 INFO L87 Difference]: Start difference. First operand 186 states and 186 transitions. Second operand 21 states. [2018-10-14 16:52:44,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:52:44,856 INFO L93 Difference]: Finished difference Result 184 states and 184 transitions. [2018-10-14 16:52:44,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-10-14 16:52:44,858 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 185 [2018-10-14 16:52:44,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:52:44,859 INFO L225 Difference]: With dead ends: 184 [2018-10-14 16:52:44,859 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:52:44,861 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=360, Invalid=1280, Unknown=0, NotChecked=0, Total=1640 [2018-10-14 16:52:44,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:52:44,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:52:44,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:52:44,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:52:44,862 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 185 [2018-10-14 16:52:44,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:52:44,862 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:52:44,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-10-14 16:52:44,862 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:52:44,862 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:52:44,868 INFO L202 PluginConnector]: Adding new model sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_27.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:52:44 BoogieIcfgContainer [2018-10-14 16:52:44,868 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:52:44,869 INFO L168 Benchmark]: Toolchain (without parser) took 9219.13 ms. Allocated memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 21.5 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 333.8 MB). Peak memory consumption was 355.3 MB. Max. memory is 7.1 GB. [2018-10-14 16:52:44,871 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:52:44,872 INFO L168 Benchmark]: Boogie Preprocessor took 86.71 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:52:44,872 INFO L168 Benchmark]: RCFGBuilder took 754.60 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-14 16:52:44,873 INFO L168 Benchmark]: TraceAbstraction took 8373.69 ms. Allocated memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 21.5 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 302.1 MB). Peak memory consumption was 323.6 MB. Max. memory is 7.1 GB. [2018-10-14 16:52:44,878 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 0.21 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 86.71 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 754.60 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8373.69 ms. Allocated memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 21.5 MB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 302.1 MB). Peak memory consumption was 323.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 181]: 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, 92 locations, 1 error locations. SAFE Result, 8.2s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 5.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 257 SDtfs, 2522 SDslu, 1373 SDs, 0 SdLazy, 1107 SolverSat, 88 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred in iteration=3, 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, 4 MinimizatonAttempts, 30 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 458 NumberOfCodeBlocks, 458 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 454 ConstructedInterpolants, 0 QuantifiedInterpolants, 665912 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 34/200 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_27.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-52-44-889.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sll-simple-white-blue_true-unreach-call_false-valid-memtrack.i_27.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-52-44-889.csv Received shutdown request...