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/20170304-DifficultPathPrograms/sum01_bug02_sum01_bug02_base.case.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d769cf3 [2018-10-15 15:35:15,808 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-15 15:35:15,810 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-15 15:35:15,822 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-15 15:35:15,822 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-15 15:35:15,823 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-15 15:35:15,825 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-15 15:35:15,826 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-15 15:35:15,828 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-15 15:35:15,829 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-15 15:35:15,830 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-15 15:35:15,855 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 15:35:15,871 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-15 15:35:15,872 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-15 15:35:15,873 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-15 15:35:15,874 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-15 15:35:15,874 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-15 15:35:15,874 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-15 15:35:15,875 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-15 15:35:15,875 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-15 15:35:15,875 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-15 15:35:15,876 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-15 15:35:15,876 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-15 15:35:15,876 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-15 15:35:15,876 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-15 15:35:15,877 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-15 15:35:15,878 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-15 15:35:15,952 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-15 15:35:15,970 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-15 15:35:15,977 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-15 15:35:15,979 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-15 15:35:15,979 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-15 15:35:15,980 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/sum01_bug02_sum01_bug02_base.case.i_4.bpl [2018-10-15 15:35:15,980 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/sum01_bug02_sum01_bug02_base.case.i_4.bpl' [2018-10-15 15:35:16,027 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-15 15:35:16,029 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-15 15:35:16,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-15 15:35:16,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-15 15:35:16,030 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-15 15:35:16,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum01_bug02_sum01_bug02_base.case.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:35:16" (1/1) ... [2018-10-15 15:35:16,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum01_bug02_sum01_bug02_base.case.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:35:16" (1/1) ... [2018-10-15 15:35:16,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum01_bug02_sum01_bug02_base.case.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:35:16" (1/1) ... [2018-10-15 15:35:16,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum01_bug02_sum01_bug02_base.case.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:35:16" (1/1) ... [2018-10-15 15:35:16,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum01_bug02_sum01_bug02_base.case.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:35:16" (1/1) ... [2018-10-15 15:35:16,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum01_bug02_sum01_bug02_base.case.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:35:16" (1/1) ... [2018-10-15 15:35:16,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum01_bug02_sum01_bug02_base.case.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:35:16" (1/1) ... [2018-10-15 15:35:16,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-15 15:35:16,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-15 15:35:16,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-15 15:35:16,081 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-15 15:35:16,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum01_bug02_sum01_bug02_base.case.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:35:16" (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 15:35:16,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-15 15:35:16,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-15 15:35:16,404 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-15 15:35:16,405 INFO L202 PluginConnector]: Adding new model sum01_bug02_sum01_bug02_base.case.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:35:16 BoogieIcfgContainer [2018-10-15 15:35:16,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-15 15:35:16,406 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-15 15:35:16,406 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-15 15:35:16,407 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-15 15:35:16,412 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "sum01_bug02_sum01_bug02_base.case.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:35:16" (1/1) ... [2018-10-15 15:35:16,418 WARN L219 ansformationObserver]: HeapSeparator: input icfg has no '#valid' array -- returning unchanged Icfg! [2018-10-15 15:35:16,439 INFO L202 PluginConnector]: Adding new model sum01_bug02_sum01_bug02_base.case.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 03:35:16 BasicIcfg [2018-10-15 15:35:16,440 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-15 15:35:16,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-15 15:35:16,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-15 15:35:16,445 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-15 15:35:16,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum01_bug02_sum01_bug02_base.case.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:35:16" (1/3) ... [2018-10-15 15:35:16,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6e8f8f and model type sum01_bug02_sum01_bug02_base.case.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:35:16, skipping insertion in model container [2018-10-15 15:35:16,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum01_bug02_sum01_bug02_base.case.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:35:16" (2/3) ... [2018-10-15 15:35:16,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6e8f8f and model type sum01_bug02_sum01_bug02_base.case.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:35:16, skipping insertion in model container [2018-10-15 15:35:16,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum01_bug02_sum01_bug02_base.case.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 03:35:16" (3/3) ... [2018-10-15 15:35:16,449 INFO L112 eAbstractionObserver]: Analyzing ICFG sum01_bug02_sum01_bug02_base.case.i_4.bplleft_unchanged_by_heapseparator [2018-10-15 15:35:16,471 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-15 15:35:16,485 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-15 15:35:16,514 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-15 15:35:16,549 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-15 15:35:16,550 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-15 15:35:16,550 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-15 15:35:16,551 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-15 15:35:16,551 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-15 15:35:16,551 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-15 15:35:16,551 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-15 15:35:16,551 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-15 15:35:16,552 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-15 15:35:16,569 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-10-15 15:35:16,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-15 15:35:16,591 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:35:16,592 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 15:35:16,597 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:35:16,609 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:35:16,609 INFO L82 PathProgramCache]: Analyzing trace with hash -840427034, now seen corresponding path program 1 times [2018-10-15 15:35:16,674 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:35:16,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:35:16,867 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 15:35:16,870 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 15:35:16,871 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-15 15:35:16,874 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-15 15:35:16,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-15 15:35:16,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-15 15:35:16,891 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2018-10-15 15:35:17,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:35:17,025 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-10-15 15:35:17,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-15 15:35:17,027 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-10-15 15:35:17,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:35:17,039 INFO L225 Difference]: With dead ends: 28 [2018-10-15 15:35:17,039 INFO L226 Difference]: Without dead ends: 24 [2018-10-15 15:35:17,041 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-15 15:35:17,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-10-15 15:35:17,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2018-10-15 15:35:17,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-10-15 15:35:17,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-10-15 15:35:17,079 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 15 [2018-10-15 15:35:17,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:35:17,079 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-10-15 15:35:17,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-15 15:35:17,080 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-10-15 15:35:17,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-15 15:35:17,080 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:35:17,081 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] [2018-10-15 15:35:17,081 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:35:17,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:35:17,082 INFO L82 PathProgramCache]: Analyzing trace with hash 671573874, now seen corresponding path program 1 times [2018-10-15 15:35:17,083 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:35:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:35:17,463 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-10-15 15:35:17,754 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 12 [2018-10-15 15:35:18,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 15:35:18,121 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 15:35:18,121 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-10-15 15:35:18,126 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-15 15:35:18,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-15 15:35:18,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2018-10-15 15:35:18,128 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 11 states. [2018-10-15 15:35:18,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:35:18,825 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-10-15 15:35:18,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-15 15:35:18,827 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2018-10-15 15:35:18,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:35:18,828 INFO L225 Difference]: With dead ends: 35 [2018-10-15 15:35:18,829 INFO L226 Difference]: Without dead ends: 31 [2018-10-15 15:35:18,832 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2018-10-15 15:35:18,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-10-15 15:35:18,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2018-10-15 15:35:18,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-10-15 15:35:18,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2018-10-15 15:35:18,842 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 22 [2018-10-15 15:35:18,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:35:18,843 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2018-10-15 15:35:18,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-15 15:35:18,844 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2018-10-15 15:35:18,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-15 15:35:18,845 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:35:18,845 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 15:35:18,845 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:35:18,847 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:35:18,847 INFO L82 PathProgramCache]: Analyzing trace with hash -2035547034, now seen corresponding path program 2 times [2018-10-15 15:35:18,848 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:35:18,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:35:19,353 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-15 15:35:19,353 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 15:35:19,354 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-10-15 15:35:19,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-15 15:35:19,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-15 15:35:19,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2018-10-15 15:35:19,356 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 13 states. [2018-10-15 15:35:19,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:35:19,869 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-10-15 15:35:19,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-15 15:35:19,870 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 29 [2018-10-15 15:35:19,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:35:19,871 INFO L225 Difference]: With dead ends: 27 [2018-10-15 15:35:19,872 INFO L226 Difference]: Without dead ends: 0 [2018-10-15 15:35:19,873 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2018-10-15 15:35:19,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-15 15:35:19,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-15 15:35:19,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-15 15:35:19,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-15 15:35:19,875 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2018-10-15 15:35:19,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:35:19,876 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-15 15:35:19,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-15 15:35:19,876 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-15 15:35:19,876 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-15 15:35:19,882 INFO L202 PluginConnector]: Adding new model sum01_bug02_sum01_bug02_base.case.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:35:19 BasicIcfg [2018-10-15 15:35:19,882 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-15 15:35:19,883 INFO L168 Benchmark]: Toolchain (without parser) took 3854.79 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 169.2 MB). Peak memory consumption was 169.2 MB. Max. memory is 7.1 GB. [2018-10-15 15:35:19,884 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 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. [2018-10-15 15:35:19,885 INFO L168 Benchmark]: Boogie Preprocessor took 49.27 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. [2018-10-15 15:35:19,886 INFO L168 Benchmark]: RCFGBuilder took 325.01 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-15 15:35:19,887 INFO L168 Benchmark]: IcfgTransformer took 33.91 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 15:35:19,888 INFO L168 Benchmark]: TraceAbstraction took 3441.06 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: 148.1 MB). Peak memory consumption was 148.1 MB. Max. memory is 7.1 GB. [2018-10-15 15:35:19,893 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 0.18 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 49.27 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 325.01 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * IcfgTransformer took 33.91 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 3441.06 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: 148.1 MB). Peak memory consumption was 148.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: 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, 23 locations, 1 error locations. SAFE Result, 3.3s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 SDtfs, 43 SDslu, 199 SDs, 0 SdLazy, 208 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 12159 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/13 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_bug02_sum01_bug02_base.case.i_4.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-15_15-35-19-906.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sum01_bug02_sum01_bug02_base.case.i_4.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-15_15-35-19-906.csv Received shutdown request...