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/alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:26:22,675 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:26:22,678 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:26:22,693 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-10-10 15:26:22,728 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 15:26:22,741 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:26:22,741 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:26:22,742 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:26:22,742 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:26:22,742 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:26:22,743 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:26:22,743 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:26:22,744 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:26:22,744 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:26:22,744 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:26:22,744 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:26:22,744 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:26:22,745 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:26:22,745 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:26:22,746 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:26:22,805 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:26:22,822 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:26:22,828 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:26:22,830 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:26:22,831 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:26:22,831 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl [2018-10-10 15:26:22,832 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl' [2018-10-10 15:26:22,938 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:26:22,939 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:26:22,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:26:22,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:26:22,940 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:26:22,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:26:22" (1/1) ... [2018-10-10 15:26:22,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:26:22" (1/1) ... [2018-10-10 15:26:22,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:26:22" (1/1) ... [2018-10-10 15:26:22,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:26:22" (1/1) ... [2018-10-10 15:26:23,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:26:22" (1/1) ... [2018-10-10 15:26:23,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:26:22" (1/1) ... [2018-10-10 15:26:23,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:26:22" (1/1) ... [2018-10-10 15:26:23,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:26:23,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:26:23,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:26:23,037 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:26:23,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:26:22" (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 15:26:23,109 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:26:23,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:26:23,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:26:23,918 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:26:23,919 INFO L202 PluginConnector]: Adding new model alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:26:23 BoogieIcfgContainer [2018-10-10 15:26:23,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:26:23,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:26:23,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:26:23,925 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:26:23,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:26:22" (1/2) ... [2018-10-10 15:26:23,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a3e9af2 and model type alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:26:23, skipping insertion in model container [2018-10-10 15:26:23,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:26:23" (2/2) ... [2018-10-10 15:26:23,929 INFO L112 eAbstractionObserver]: Analyzing ICFG alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl [2018-10-10 15:26:23,940 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:26:23,951 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:26:23,969 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:26:24,006 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:26:24,007 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:26:24,007 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:26:24,007 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:26:24,007 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:26:24,007 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:26:24,008 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:26:24,008 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:26:24,008 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:26:24,039 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states. [2018-10-10 15:26:24,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-10 15:26:24,056 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:26:24,057 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] [2018-10-10 15:26:24,058 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:26:24,064 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:26:24,065 INFO L82 PathProgramCache]: Analyzing trace with hash 179709574, now seen corresponding path program 1 times [2018-10-10 15:26:24,113 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:26:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:26:24,722 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 15:26:24,724 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:26:24,725 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-10 15:26:24,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-10 15:26:24,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-10 15:26:24,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-10-10 15:26:24,750 INFO L87 Difference]: Start difference. First operand 139 states. Second operand 9 states. [2018-10-10 15:26:25,577 WARN L178 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-10-10 15:26:26,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:26:26,522 INFO L93 Difference]: Finished difference Result 292 states and 297 transitions. [2018-10-10 15:26:26,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-10 15:26:26,524 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 48 [2018-10-10 15:26:26,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:26:26,540 INFO L225 Difference]: With dead ends: 292 [2018-10-10 15:26:26,541 INFO L226 Difference]: Without dead ends: 292 [2018-10-10 15:26:26,543 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2018-10-10 15:26:26,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2018-10-10 15:26:26,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 187. [2018-10-10 15:26:26,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2018-10-10 15:26:26,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 191 transitions. [2018-10-10 15:26:26,599 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 191 transitions. Word has length 48 [2018-10-10 15:26:26,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:26:26,600 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 191 transitions. [2018-10-10 15:26:26,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-10 15:26:26,601 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 191 transitions. [2018-10-10 15:26:26,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-10-10 15:26:26,604 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:26:26,605 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-10 15:26:26,605 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:26:26,605 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:26:26,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1229667807, now seen corresponding path program 1 times [2018-10-10 15:26:26,607 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:26:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:26:26,824 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:26:26,825 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:26:26,825 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-10-10 15:26:26,827 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-10 15:26:26,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-10 15:26:26,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-10-10 15:26:26,829 INFO L87 Difference]: Start difference. First operand 187 states and 191 transitions. Second operand 11 states. [2018-10-10 15:26:27,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:26:27,776 INFO L93 Difference]: Finished difference Result 358 states and 363 transitions. [2018-10-10 15:26:27,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-10 15:26:27,777 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 75 [2018-10-10 15:26:27,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:26:27,782 INFO L225 Difference]: With dead ends: 358 [2018-10-10 15:26:27,786 INFO L226 Difference]: Without dead ends: 347 [2018-10-10 15:26:27,787 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2018-10-10 15:26:27,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2018-10-10 15:26:27,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 210. [2018-10-10 15:26:27,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2018-10-10 15:26:27,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 215 transitions. [2018-10-10 15:26:27,825 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 215 transitions. Word has length 75 [2018-10-10 15:26:27,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:26:27,826 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 215 transitions. [2018-10-10 15:26:27,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-10 15:26:27,826 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 215 transitions. [2018-10-10 15:26:27,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-10-10 15:26:27,832 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:26:27,833 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] [2018-10-10 15:26:27,833 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:26:27,833 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:26:27,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1321732550, now seen corresponding path program 1 times [2018-10-10 15:26:27,840 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:26:27,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:26:28,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:26:28,246 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:26:28,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-10-10 15:26:28,247 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-10 15:26:28,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-10 15:26:28,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2018-10-10 15:26:28,248 INFO L87 Difference]: Start difference. First operand 210 states and 215 transitions. Second operand 11 states. [2018-10-10 15:26:29,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:26:29,556 INFO L93 Difference]: Finished difference Result 488 states and 495 transitions. [2018-10-10 15:26:29,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-10 15:26:29,558 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 91 [2018-10-10 15:26:29,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:26:29,561 INFO L225 Difference]: With dead ends: 488 [2018-10-10 15:26:29,561 INFO L226 Difference]: Without dead ends: 483 [2018-10-10 15:26:29,562 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=213, Invalid=489, Unknown=0, NotChecked=0, Total=702 [2018-10-10 15:26:29,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2018-10-10 15:26:29,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 219. [2018-10-10 15:26:29,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2018-10-10 15:26:29,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 224 transitions. [2018-10-10 15:26:29,577 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 224 transitions. Word has length 91 [2018-10-10 15:26:29,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:26:29,577 INFO L481 AbstractCegarLoop]: Abstraction has 219 states and 224 transitions. [2018-10-10 15:26:29,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-10 15:26:29,578 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 224 transitions. [2018-10-10 15:26:29,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-10-10 15:26:29,580 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:26:29,581 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-10 15:26:29,581 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:26:29,581 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:26:29,581 INFO L82 PathProgramCache]: Analyzing trace with hash -364173713, now seen corresponding path program 1 times [2018-10-10 15:26:29,582 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:26:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:26:29,793 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-10 15:26:29,794 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:26:29,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-10 15:26:29,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-10 15:26:29,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-10 15:26:29,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-10 15:26:29,795 INFO L87 Difference]: Start difference. First operand 219 states and 224 transitions. Second operand 9 states. [2018-10-10 15:26:30,082 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 26 [2018-10-10 15:26:30,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:26:30,407 INFO L93 Difference]: Finished difference Result 292 states and 295 transitions. [2018-10-10 15:26:30,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-10 15:26:30,408 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 107 [2018-10-10 15:26:30,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:26:30,411 INFO L225 Difference]: With dead ends: 292 [2018-10-10 15:26:30,411 INFO L226 Difference]: Without dead ends: 260 [2018-10-10 15:26:30,412 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-10-10 15:26:30,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2018-10-10 15:26:30,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 219. [2018-10-10 15:26:30,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2018-10-10 15:26:30,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 223 transitions. [2018-10-10 15:26:30,445 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 223 transitions. Word has length 107 [2018-10-10 15:26:30,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:26:30,446 INFO L481 AbstractCegarLoop]: Abstraction has 219 states and 223 transitions. [2018-10-10 15:26:30,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-10 15:26:30,446 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 223 transitions. [2018-10-10 15:26:30,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-10-10 15:26:30,449 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:26:30,449 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:26:30,450 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:26:30,451 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:26:30,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1685791226, now seen corresponding path program 2 times [2018-10-10 15:26:30,452 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:26:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:26:30,622 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:26:30,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:26:30,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 15:26:30,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 15:26:30,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 15:26:30,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 15:26:30,626 INFO L87 Difference]: Start difference. First operand 219 states and 223 transitions. Second operand 3 states. [2018-10-10 15:26:30,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:26:30,730 INFO L93 Difference]: Finished difference Result 155 states and 155 transitions. [2018-10-10 15:26:30,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 15:26:30,731 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 134 [2018-10-10 15:26:30,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:26:30,732 INFO L225 Difference]: With dead ends: 155 [2018-10-10 15:26:30,733 INFO L226 Difference]: Without dead ends: 151 [2018-10-10 15:26:30,733 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 15:26:30,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-10-10 15:26:30,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2018-10-10 15:26:30,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-10-10 15:26:30,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 151 transitions. [2018-10-10 15:26:30,738 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 151 transitions. Word has length 134 [2018-10-10 15:26:30,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:26:30,739 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 151 transitions. [2018-10-10 15:26:30,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 15:26:30,739 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 151 transitions. [2018-10-10 15:26:30,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-10-10 15:26:30,742 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:26:30,746 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:26:30,746 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:26:30,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:26:30,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1262941755, now seen corresponding path program 1 times [2018-10-10 15:26:30,747 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:26:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:26:31,450 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-10 15:26:32,928 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:26:32,929 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:26:32,929 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-10-10 15:26:32,930 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-10-10 15:26:32,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-10-10 15:26:32,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=747, Unknown=0, NotChecked=0, Total=812 [2018-10-10 15:26:32,931 INFO L87 Difference]: Start difference. First operand 151 states and 151 transitions. Second operand 29 states. [2018-10-10 15:26:34,723 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2018-10-10 15:26:34,990 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2018-10-10 15:26:35,323 WARN L178 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2018-10-10 15:26:35,661 WARN L178 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2018-10-10 15:26:36,040 WARN L178 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 88 [2018-10-10 15:26:38,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:26:38,061 INFO L93 Difference]: Finished difference Result 203 states and 203 transitions. [2018-10-10 15:26:38,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-10-10 15:26:38,062 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 150 [2018-10-10 15:26:38,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:26:38,064 INFO L225 Difference]: With dead ends: 203 [2018-10-10 15:26:38,064 INFO L226 Difference]: Without dead ends: 203 [2018-10-10 15:26:38,066 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=540, Invalid=3120, Unknown=0, NotChecked=0, Total=3660 [2018-10-10 15:26:38,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2018-10-10 15:26:38,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 178. [2018-10-10 15:26:38,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-10-10 15:26:38,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 178 transitions. [2018-10-10 15:26:38,071 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 178 transitions. Word has length 150 [2018-10-10 15:26:38,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:26:38,071 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 178 transitions. [2018-10-10 15:26:38,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-10-10 15:26:38,072 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 178 transitions. [2018-10-10 15:26:38,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-10-10 15:26:38,073 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:26:38,074 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:26:38,074 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:26:38,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:26:38,074 INFO L82 PathProgramCache]: Analyzing trace with hash 2004567306, now seen corresponding path program 2 times [2018-10-10 15:26:38,075 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:26:38,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:26:38,827 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-10 15:26:39,342 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:26:39,342 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:26:39,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-10-10 15:26:39,342 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-10-10 15:26:39,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-10-10 15:26:39,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=844, Unknown=0, NotChecked=0, Total=930 [2018-10-10 15:26:39,344 INFO L87 Difference]: Start difference. First operand 178 states and 178 transitions. Second operand 31 states. [2018-10-10 15:26:41,559 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2018-10-10 15:26:41,978 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2018-10-10 15:26:43,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:26:43,402 INFO L93 Difference]: Finished difference Result 168 states and 167 transitions. [2018-10-10 15:26:43,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-10-10 15:26:43,404 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 177 [2018-10-10 15:26:43,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:26:43,405 INFO L225 Difference]: With dead ends: 168 [2018-10-10 15:26:43,405 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:26:43,406 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 847 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=733, Invalid=3689, Unknown=0, NotChecked=0, Total=4422 [2018-10-10 15:26:43,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:26:43,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:26:43,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:26:43,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:26:43,407 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 177 [2018-10-10 15:26:43,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:26:43,408 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:26:43,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-10-10 15:26:43,408 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:26:43,408 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:26:43,413 INFO L202 PluginConnector]: Adding new model alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:26:43 BoogieIcfgContainer [2018-10-10 15:26:43,413 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:26:43,414 INFO L168 Benchmark]: Toolchain (without parser) took 20476.14 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 203.9 MB). Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 49.8 MB). Peak memory consumption was 253.8 MB. Max. memory is 7.1 GB. [2018-10-10 15:26:43,416 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. [2018-10-10 15:26:43,416 INFO L168 Benchmark]: Boogie Preprocessor took 94.70 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 15:26:43,417 INFO L168 Benchmark]: RCFGBuilder took 882.45 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 15:26:43,418 INFO L168 Benchmark]: TraceAbstraction took 19493.86 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 203.9 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 7.5 MB). Peak memory consumption was 211.5 MB. Max. memory is 7.1 GB. [2018-10-10 15:26:43,422 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 94.70 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 882.45 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 19493.86 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 203.9 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 7.5 MB). Peak memory consumption was 211.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 242]: 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, 139 locations, 1 error locations. SAFE Result, 19.4s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 14.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 840 SDtfs, 5682 SDslu, 5626 SDs, 0 SdLazy, 4188 SolverSat, 251 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 209 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1590 ImplicationChecksByTransitivity, 10.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=219occurred 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 572 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 782 NumberOfCodeBlocks, 782 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 775 ConstructedInterpolants, 0 QuantifiedInterpolants, 925594 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 82/122 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/alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-26-43-432.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/alternating_list_true-unreach-call_true-valid-memsafety.i_37.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-26-43-432.csv Received shutdown request...