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/cggmp2005b.c.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d769cf3 [2018-10-15 15:23:32,447 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-15 15:23:32,449 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-15 15:23:32,466 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-15 15:23:32,467 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-15 15:23:32,469 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-15 15:23:32,471 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-15 15:23:32,474 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-15 15:23:32,476 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-15 15:23:32,478 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-15 15:23:32,480 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-15 15:23:32,512 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 15:23:32,521 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-15 15:23:32,521 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-15 15:23:32,522 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-15 15:23:32,522 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-15 15:23:32,522 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-15 15:23:32,523 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-15 15:23:32,523 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-15 15:23:32,524 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-15 15:23:32,524 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-15 15:23:32,524 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-15 15:23:32,524 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-15 15:23:32,524 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-15 15:23:32,525 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-15 15:23:32,525 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-15 15:23:32,526 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-15 15:23:32,604 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-15 15:23:32,617 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-15 15:23:32,621 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-15 15:23:32,622 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-15 15:23:32,623 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-15 15:23:32,624 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/cggmp2005b.c.i_4.bpl [2018-10-15 15:23:32,624 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/cggmp2005b.c.i_4.bpl' [2018-10-15 15:23:32,677 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-15 15:23:32,679 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-15 15:23:32,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-15 15:23:32,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-15 15:23:32,680 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-15 15:23:32,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:23:32" (1/1) ... [2018-10-15 15:23:32,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:23:32" (1/1) ... [2018-10-15 15:23:32,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:23:32" (1/1) ... [2018-10-15 15:23:32,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:23:32" (1/1) ... [2018-10-15 15:23:32,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:23:32" (1/1) ... [2018-10-15 15:23:32,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:23:32" (1/1) ... [2018-10-15 15:23:32,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:23:32" (1/1) ... [2018-10-15 15:23:32,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-15 15:23:32,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-15 15:23:32,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-15 15:23:32,735 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-15 15:23:32,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:23:32" (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 15:23:32,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-15 15:23:32,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-15 15:23:33,084 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-15 15:23:33,085 INFO L202 PluginConnector]: Adding new model cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:23:33 BoogieIcfgContainer [2018-10-15 15:23:33,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-15 15:23:33,086 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-15 15:23:33,086 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-15 15:23:33,093 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-15 15:23:33,104 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:23:33" (1/1) ... [2018-10-15 15:23:33,114 WARN L219 ansformationObserver]: HeapSeparator: input icfg has no '#valid' array -- returning unchanged Icfg! [2018-10-15 15:23:33,143 INFO L202 PluginConnector]: Adding new model cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 03:23:33 BasicIcfg [2018-10-15 15:23:33,144 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-15 15:23:33,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-15 15:23:33,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-15 15:23:33,156 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-15 15:23:33,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:23:32" (1/3) ... [2018-10-15 15:23:33,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cefdc85 and model type cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:23:33, skipping insertion in model container [2018-10-15 15:23:33,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:23:33" (2/3) ... [2018-10-15 15:23:33,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cefdc85 and model type cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:23:33, skipping insertion in model container [2018-10-15 15:23:33,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 03:23:33" (3/3) ... [2018-10-15 15:23:33,161 INFO L112 eAbstractionObserver]: Analyzing ICFG cggmp2005b.c.i_4.bplleft_unchanged_by_heapseparator [2018-10-15 15:23:33,171 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-15 15:23:33,186 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-15 15:23:33,205 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-15 15:23:33,237 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-15 15:23:33,238 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-15 15:23:33,238 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-15 15:23:33,238 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-15 15:23:33,238 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-15 15:23:33,238 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-15 15:23:33,239 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-15 15:23:33,239 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-15 15:23:33,239 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-15 15:23:33,254 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-10-15 15:23:33,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-15 15:23:33,264 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:23:33,265 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 15:23:33,266 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:23:33,273 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:23:33,274 INFO L82 PathProgramCache]: Analyzing trace with hash -749417107, now seen corresponding path program 1 times [2018-10-15 15:23:33,342 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:23:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:23:33,447 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 15:23:33,449 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 15:23:33,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-15 15:23:33,453 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-15 15:23:33,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-15 15:23:33,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-15 15:23:33,469 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-10-15 15:23:33,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:23:33,548 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2018-10-15 15:23:33,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-15 15:23:33,550 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-10-15 15:23:33,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:23:33,561 INFO L225 Difference]: With dead ends: 27 [2018-10-15 15:23:33,562 INFO L226 Difference]: Without dead ends: 27 [2018-10-15 15:23:33,564 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 [2018-10-15 15:23:33,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-10-15 15:23:33,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2018-10-15 15:23:33,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-10-15 15:23:33,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2018-10-15 15:23:33,601 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 16 [2018-10-15 15:23:33,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:23:33,601 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2018-10-15 15:23:33,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-15 15:23:33,602 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2018-10-15 15:23:33,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-15 15:23:33,603 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:23:33,603 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] [2018-10-15 15:23:33,604 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:23:33,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:23:33,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1724566007, now seen corresponding path program 1 times [2018-10-15 15:23:33,605 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:23:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:23:33,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 15:23:33,682 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 15:23:33,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-15 15:23:33,684 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-15 15:23:33,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-15 15:23:33,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-15 15:23:33,685 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 3 states. [2018-10-15 15:23:33,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:23:33,742 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2018-10-15 15:23:33,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-15 15:23:33,743 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-10-15 15:23:33,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:23:33,745 INFO L225 Difference]: With dead ends: 30 [2018-10-15 15:23:33,745 INFO L226 Difference]: Without dead ends: 30 [2018-10-15 15:23:33,746 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 [2018-10-15 15:23:33,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-10-15 15:23:33,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2018-10-15 15:23:33,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-10-15 15:23:33,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2018-10-15 15:23:33,753 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 24 [2018-10-15 15:23:33,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:23:33,753 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2018-10-15 15:23:33,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-15 15:23:33,754 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2018-10-15 15:23:33,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-15 15:23:33,755 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:23:33,755 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] [2018-10-15 15:23:33,755 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:23:33,755 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:23:33,756 INFO L82 PathProgramCache]: Analyzing trace with hash 591584087, now seen corresponding path program 1 times [2018-10-15 15:23:33,757 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:23:33,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:23:33,836 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-15 15:23:33,839 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 15:23:33,839 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-10-15 15:23:33,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-15 15:23:33,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-15 15:23:33,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-15 15:23:33,841 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 4 states. [2018-10-15 15:23:34,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:23:34,025 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2018-10-15 15:23:34,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-15 15:23:34,026 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-10-15 15:23:34,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:23:34,027 INFO L225 Difference]: With dead ends: 38 [2018-10-15 15:23:34,028 INFO L226 Difference]: Without dead ends: 38 [2018-10-15 15:23:34,028 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-15 15:23:34,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-10-15 15:23:34,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2018-10-15 15:23:34,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-10-15 15:23:34,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2018-10-15 15:23:34,034 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 27 [2018-10-15 15:23:34,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:23:34,034 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2018-10-15 15:23:34,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-15 15:23:34,035 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2018-10-15 15:23:34,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-10-15 15:23:34,036 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:23:34,036 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 15:23:34,037 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:23:34,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:23:34,037 INFO L82 PathProgramCache]: Analyzing trace with hash -387363359, now seen corresponding path program 2 times [2018-10-15 15:23:34,038 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:23:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:23:34,239 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 15:23:34,239 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 15:23:34,239 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-10-15 15:23:34,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-15 15:23:34,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-15 15:23:34,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-15 15:23:34,241 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 5 states. [2018-10-15 15:23:34,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:23:34,449 INFO L93 Difference]: Finished difference Result 46 states and 48 transitions. [2018-10-15 15:23:34,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-15 15:23:34,450 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2018-10-15 15:23:34,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:23:34,451 INFO L225 Difference]: With dead ends: 46 [2018-10-15 15:23:34,451 INFO L226 Difference]: Without dead ends: 41 [2018-10-15 15:23:34,452 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-15 15:23:34,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-10-15 15:23:34,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2018-10-15 15:23:34,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-10-15 15:23:34,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2018-10-15 15:23:34,458 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 35 [2018-10-15 15:23:34,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:23:34,458 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2018-10-15 15:23:34,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-15 15:23:34,459 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2018-10-15 15:23:34,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-15 15:23:34,460 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:23:34,460 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 15:23:34,462 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:23:34,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:23:34,463 INFO L82 PathProgramCache]: Analyzing trace with hash -536174463, now seen corresponding path program 3 times [2018-10-15 15:23:34,464 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:23:34,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:23:34,561 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-10-15 15:23:34,562 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 15:23:34,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-15 15:23:34,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-15 15:23:34,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-15 15:23:34,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-15 15:23:34,564 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand 5 states. [2018-10-15 15:23:34,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:23:34,664 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2018-10-15 15:23:34,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-15 15:23:34,664 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2018-10-15 15:23:34,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:23:34,665 INFO L225 Difference]: With dead ends: 37 [2018-10-15 15:23:34,665 INFO L226 Difference]: Without dead ends: 0 [2018-10-15 15:23:34,666 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-15 15:23:34,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-15 15:23:34,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-15 15:23:34,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-15 15:23:34,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-15 15:23:34,667 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2018-10-15 15:23:34,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:23:34,668 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-15 15:23:34,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-15 15:23:34,668 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-15 15:23:34,668 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-15 15:23:34,672 INFO L202 PluginConnector]: Adding new model cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:23:34 BasicIcfg [2018-10-15 15:23:34,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-15 15:23:34,673 INFO L168 Benchmark]: Toolchain (without parser) took 1995.68 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-10-15 15:23:34,675 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 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 15:23:34,676 INFO L168 Benchmark]: Boogie Preprocessor took 54.69 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 15:23:34,677 INFO L168 Benchmark]: RCFGBuilder took 350.61 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: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2018-10-15 15:23:34,678 INFO L168 Benchmark]: IcfgTransformer took 62.66 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 15:23:34,678 INFO L168 Benchmark]: TraceAbstraction took 1521.64 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-10-15 15:23:34,682 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 0.22 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 54.69 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 350.61 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: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * IcfgTransformer took 62.66 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 1521.64 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 37]: 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, 24 locations, 1 error locations. SAFE Result, 1.4s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 119 SDtfs, 22 SDslu, 182 SDs, 0 SdLazy, 72 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=4, 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, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 7335 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 39/45 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/cggmp2005b.c.i_4.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-15_15-23-34-695.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cggmp2005b.c.i_4.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-15_15-23-34-695.csv Received shutdown request...