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/AutomizerBplTransformed.xml -s ../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf -i ../../../trunk/examples/programs/20181015-LoopsPathprograms/sum01_false-unreach-call_true-termination.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2d08e6e [2018-10-15 13:14:10,677 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-15 13:14:10,680 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-15 13:14:10,692 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-10-15 13:14:10,727 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-15 13:14:10,746 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-15 13:14:10,746 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-15 13:14:10,747 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-15 13:14:10,747 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-15 13:14:10,748 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-15 13:14:10,748 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-15 13:14:10,749 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-15 13:14:10,749 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-15 13:14:10,749 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-15 13:14:10,749 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-15 13:14:10,750 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-15 13:14:10,750 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-15 13:14:10,750 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-15 13:14:10,752 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-15 13:14:10,752 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-15 13:14:10,805 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-15 13:14:10,820 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-15 13:14:10,826 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-15 13:14:10,828 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-15 13:14:10,829 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-15 13:14:10,829 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/sum01_false-unreach-call_true-termination.i_3.bpl [2018-10-15 13:14:10,830 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/sum01_false-unreach-call_true-termination.i_3.bpl' [2018-10-15 13:14:10,891 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-15 13:14:10,893 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-15 13:14:10,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-15 13:14:10,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-15 13:14:10,894 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-15 13:14:10,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum01_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:14:10" (1/1) ... [2018-10-15 13:14:10,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum01_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:14:10" (1/1) ... [2018-10-15 13:14:10,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum01_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:14:10" (1/1) ... [2018-10-15 13:14:10,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum01_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:14:10" (1/1) ... [2018-10-15 13:14:10,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum01_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:14:10" (1/1) ... [2018-10-15 13:14:10,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum01_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:14:10" (1/1) ... [2018-10-15 13:14:10,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum01_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:14:10" (1/1) ... [2018-10-15 13:14:10,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-15 13:14:10,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-15 13:14:10,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-15 13:14:10,941 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-15 13:14:10,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum01_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:14:10" (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 [2018-10-15 13:14:11,015 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-15 13:14:11,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-15 13:14:11,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-15 13:14:11,467 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-15 13:14:11,468 INFO L202 PluginConnector]: Adding new model sum01_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:14:11 BoogieIcfgContainer [2018-10-15 13:14:11,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-15 13:14:11,469 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-15 13:14:11,469 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-15 13:14:11,471 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-15 13:14:11,475 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "sum01_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:14:11" (1/1) ... [2018-10-15 13:14:11,481 WARN L219 ansformationObserver]: HeapSeparator: input icfg has no '#valid' array -- returning unchanged Icfg! [2018-10-15 13:14:11,500 INFO L202 PluginConnector]: Adding new model sum01_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 01:14:11 BasicIcfg [2018-10-15 13:14:11,500 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-15 13:14:11,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-15 13:14:11,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-15 13:14:11,505 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-15 13:14:11,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum01_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:14:10" (1/3) ... [2018-10-15 13:14:11,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703c8112 and model type sum01_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:14:11, skipping insertion in model container [2018-10-15 13:14:11,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum01_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:14:11" (2/3) ... [2018-10-15 13:14:11,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703c8112 and model type sum01_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:14:11, skipping insertion in model container [2018-10-15 13:14:11,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum01_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 01:14:11" (3/3) ... [2018-10-15 13:14:11,510 INFO L112 eAbstractionObserver]: Analyzing ICFG sum01_false-unreach-call_true-termination.i_3.bplleft_unchanged_by_heapseparator [2018-10-15 13:14:11,522 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-15 13:14:11,532 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-15 13:14:11,550 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-15 13:14:11,599 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-15 13:14:11,600 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-15 13:14:11,601 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-15 13:14:11,601 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-15 13:14:11,601 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-15 13:14:11,601 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-15 13:14:11,602 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-15 13:14:11,602 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-15 13:14:11,605 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-15 13:14:11,633 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-10-15 13:14:11,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-15 13:14:11,655 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 13:14:11,656 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 13:14:11,657 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 13:14:11,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 13:14:11,664 INFO L82 PathProgramCache]: Analyzing trace with hash -264836309, now seen corresponding path program 1 times [2018-10-15 13:14:11,721 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 13:14:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 13:14:11,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 13:14:11,922 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 13:14:11,922 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-15 13:14:11,926 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-15 13:14:11,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-15 13:14:11,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-15 13:14:11,943 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 6 states. [2018-10-15 13:14:12,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 13:14:12,107 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-10-15 13:14:12,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-15 13:14:12,112 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-10-15 13:14:12,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 13:14:12,123 INFO L225 Difference]: With dead ends: 28 [2018-10-15 13:14:12,123 INFO L226 Difference]: Without dead ends: 23 [2018-10-15 13:14:12,125 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-10-15 13:14:12,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-10-15 13:14:12,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2018-10-15 13:14:12,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-10-15 13:14:12,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-10-15 13:14:12,159 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 14 [2018-10-15 13:14:12,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 13:14:12,160 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-10-15 13:14:12,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-15 13:14:12,160 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-10-15 13:14:12,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-15 13:14:12,161 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 13:14:12,161 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] [2018-10-15 13:14:12,161 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 13:14:12,162 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 13:14:12,162 INFO L82 PathProgramCache]: Analyzing trace with hash -320835227, now seen corresponding path program 1 times [2018-10-15 13:14:12,163 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 13:14:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 13:14:12,634 WARN L179 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2018-10-15 13:14:13,037 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2018-10-15 13:14:13,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 13:14:13,251 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 13:14:13,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-10-15 13:14:13,254 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-15 13:14:13,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-15 13:14:13,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-10-15 13:14:13,255 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 12 states. [2018-10-15 13:14:13,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 13:14:13,996 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-10-15 13:14:13,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-15 13:14:13,997 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 20 [2018-10-15 13:14:13,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 13:14:13,999 INFO L225 Difference]: With dead ends: 34 [2018-10-15 13:14:13,999 INFO L226 Difference]: Without dead ends: 29 [2018-10-15 13:14:14,001 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2018-10-15 13:14:14,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-10-15 13:14:14,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2018-10-15 13:14:14,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-10-15 13:14:14,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-10-15 13:14:14,007 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 20 [2018-10-15 13:14:14,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 13:14:14,008 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-10-15 13:14:14,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-15 13:14:14,008 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-10-15 13:14:14,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-15 13:14:14,009 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 13:14:14,009 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 13:14:14,010 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 13:14:14,010 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 13:14:14,010 INFO L82 PathProgramCache]: Analyzing trace with hash -2047417313, now seen corresponding path program 2 times [2018-10-15 13:14:14,011 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 13:14:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 13:14:14,498 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-15 13:14:14,499 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 13:14:14,499 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-10-15 13:14:14,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-15 13:14:14,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-15 13:14:14,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2018-10-15 13:14:14,501 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 14 states. [2018-10-15 13:14:14,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 13:14:14,995 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2018-10-15 13:14:14,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-15 13:14:14,995 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 26 [2018-10-15 13:14:14,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 13:14:14,996 INFO L225 Difference]: With dead ends: 25 [2018-10-15 13:14:14,996 INFO L226 Difference]: Without dead ends: 0 [2018-10-15 13:14:14,996 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2018-10-15 13:14:14,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-15 13:14:14,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-15 13:14:14,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-15 13:14:14,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-15 13:14:14,998 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-10-15 13:14:14,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 13:14:14,998 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-15 13:14:14,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-15 13:14:14,998 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-15 13:14:14,999 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-15 13:14:15,003 INFO L202 PluginConnector]: Adding new model sum01_false-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:14:15 BasicIcfg [2018-10-15 13:14:15,004 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-15 13:14:15,005 INFO L168 Benchmark]: Toolchain (without parser) took 4112.96 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 179.8 MB). Peak memory consumption was 179.8 MB. Max. memory is 7.1 GB. [2018-10-15 13:14:15,006 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-15 13:14:15,007 INFO L168 Benchmark]: Boogie Preprocessor took 46.58 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-15 13:14:15,008 INFO L168 Benchmark]: RCFGBuilder took 527.94 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-15 13:14:15,009 INFO L168 Benchmark]: IcfgTransformer took 31.43 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-15 13:14:15,010 INFO L168 Benchmark]: TraceAbstraction took 3502.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 158.6 MB). Peak memory consumption was 158.6 MB. Max. memory is 7.1 GB. [2018-10-15 13:14:15,014 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.58 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 527.94 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * IcfgTransformer took 31.43 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * TraceAbstraction took 3502.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 158.6 MB). Peak memory consumption was 158.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: 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, 22 locations, 1 error locations. SAFE Result, 3.4s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 36 SDtfs, 60 SDslu, 172 SDs, 0 SdLazy, 241 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=2, 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 9915 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 1/9 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/sum01_false-unreach-call_true-termination.i_3.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-15_13-14-15-027.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sum01_false-unreach-call_true-termination.i_3.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-15_13-14-15-027.csv Received shutdown request...