java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -s ../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/cggmp2005.c.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d769cf3 [2018-10-15 14:57:20,739 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-15 14:57:20,741 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-15 14:57:20,759 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-15 14:57:20,759 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-15 14:57:20,761 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-15 14:57:20,762 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-15 14:57:20,765 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-15 14:57:20,768 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-15 14:57:20,769 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-15 14:57:20,771 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-15 14:57:20,814 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 14:57:20,833 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-15 14:57:20,834 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-15 14:57:20,835 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-15 14:57:20,835 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-15 14:57:20,838 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-15 14:57:20,838 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-15 14:57:20,839 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-15 14:57:20,840 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-15 14:57:20,840 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-15 14:57:20,840 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-15 14:57:20,840 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-15 14:57:20,841 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-15 14:57:20,841 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-15 14:57:20,842 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-15 14:57:20,842 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-15 14:57:20,888 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-15 14:57:20,903 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-15 14:57:20,907 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-15 14:57:20,908 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-15 14:57:20,909 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-15 14:57:20,910 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/cggmp2005.c.i_3.bpl [2018-10-15 14:57:20,911 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/cggmp2005.c.i_3.bpl' [2018-10-15 14:57:20,968 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-15 14:57:20,970 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-15 14:57:20,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-15 14:57:20,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-15 14:57:20,971 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-15 14:57:21,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 02:57:20" (1/1) ... [2018-10-15 14:57:21,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 02:57:20" (1/1) ... [2018-10-15 14:57:21,014 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 02:57:20" (1/1) ... [2018-10-15 14:57:21,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 02:57:20" (1/1) ... [2018-10-15 14:57:21,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 02:57:20" (1/1) ... [2018-10-15 14:57:21,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 02:57:20" (1/1) ... [2018-10-15 14:57:21,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 02:57:20" (1/1) ... [2018-10-15 14:57:21,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-15 14:57:21,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-15 14:57:21,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-15 14:57:21,025 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-15 14:57:21,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 02:57:20" (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 14:57:21,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-15 14:57:21,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-15 14:57:21,339 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-15 14:57:21,340 INFO L202 PluginConnector]: Adding new model cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:57:21 BoogieIcfgContainer [2018-10-15 14:57:21,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-15 14:57:21,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-15 14:57:21,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-15 14:57:21,344 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-15 14:57:21,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 02:57:20" (1/2) ... [2018-10-15 14:57:21,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77cca118 and model type cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:57:21, skipping insertion in model container [2018-10-15 14:57:21,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:57:21" (2/2) ... [2018-10-15 14:57:21,348 INFO L112 eAbstractionObserver]: Analyzing ICFG cggmp2005.c.i_3.bpl [2018-10-15 14:57:21,357 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-15 14:57:21,365 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-15 14:57:21,381 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-15 14:57:21,409 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-15 14:57:21,410 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-15 14:57:21,410 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-15 14:57:21,410 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-15 14:57:21,411 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-15 14:57:21,411 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-15 14:57:21,411 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-15 14:57:21,411 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-15 14:57:21,411 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-15 14:57:21,428 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-10-15 14:57:21,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-15 14:57:21,437 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 14:57:21,438 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 14:57:21,439 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 14:57:21,446 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 14:57:21,446 INFO L82 PathProgramCache]: Analyzing trace with hash -13600336, now seen corresponding path program 1 times [2018-10-15 14:57:21,512 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 14:57:21,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 14:57:21,732 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 14:57:21,740 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 14:57:21,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-15 14:57:21,746 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-15 14:57:21,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-15 14:57:21,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-15 14:57:21,763 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 4 states. [2018-10-15 14:57:21,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 14:57:21,921 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2018-10-15 14:57:21,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-15 14:57:21,923 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-10-15 14:57:21,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 14:57:21,932 INFO L225 Difference]: With dead ends: 20 [2018-10-15 14:57:21,933 INFO L226 Difference]: Without dead ends: 20 [2018-10-15 14:57:21,935 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-15 14:57:21,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-10-15 14:57:21,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2018-10-15 14:57:21,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-10-15 14:57:21,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-10-15 14:57:21,990 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 14 [2018-10-15 14:57:21,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 14:57:21,990 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-10-15 14:57:21,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-15 14:57:21,990 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-10-15 14:57:21,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-15 14:57:21,991 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 14:57:21,991 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 14:57:21,991 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 14:57:21,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 14:57:21,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1240375236, now seen corresponding path program 1 times [2018-10-15 14:57:21,993 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 14:57:22,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 14:57:22,094 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 14:57:22,095 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 14:57:22,095 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-10-15 14:57:22,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-15 14:57:22,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-15 14:57:22,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-15 14:57:22,099 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 6 states. [2018-10-15 14:57:22,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 14:57:22,281 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-10-15 14:57:22,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-15 14:57:22,282 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-10-15 14:57:22,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 14:57:22,283 INFO L225 Difference]: With dead ends: 24 [2018-10-15 14:57:22,283 INFO L226 Difference]: Without dead ends: 24 [2018-10-15 14:57:22,284 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-15 14:57:22,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-10-15 14:57:22,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2018-10-15 14:57:22,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-10-15 14:57:22,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-10-15 14:57:22,289 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 18 [2018-10-15 14:57:22,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 14:57:22,289 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-10-15 14:57:22,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-15 14:57:22,290 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-10-15 14:57:22,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-15 14:57:22,291 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 14:57:22,291 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 14:57:22,291 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 14:57:22,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 14:57:22,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1379655480, now seen corresponding path program 2 times [2018-10-15 14:57:22,293 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 14:57:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 14:57:22,589 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 14:57:22,590 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 14:57:22,590 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-10-15 14:57:22,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-15 14:57:22,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-15 14:57:22,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-10-15 14:57:22,592 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 8 states. [2018-10-15 14:57:22,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 14:57:22,715 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-10-15 14:57:22,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-15 14:57:22,715 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2018-10-15 14:57:22,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 14:57:22,717 INFO L225 Difference]: With dead ends: 28 [2018-10-15 14:57:22,717 INFO L226 Difference]: Without dead ends: 28 [2018-10-15 14:57:22,718 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2018-10-15 14:57:22,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-10-15 14:57:22,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2018-10-15 14:57:22,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-10-15 14:57:22,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-10-15 14:57:22,724 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 22 [2018-10-15 14:57:22,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 14:57:22,724 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-10-15 14:57:22,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-15 14:57:22,725 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-10-15 14:57:22,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-15 14:57:22,726 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 14:57:22,726 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 14:57:22,727 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 14:57:22,727 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 14:57:22,727 INFO L82 PathProgramCache]: Analyzing trace with hash 365673300, now seen corresponding path program 3 times [2018-10-15 14:57:22,728 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 14:57:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 14:57:23,007 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 14:57:23,009 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 14:57:23,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-10-15 14:57:23,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-15 14:57:23,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-15 14:57:23,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2018-10-15 14:57:23,010 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 10 states. [2018-10-15 14:57:23,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 14:57:23,127 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2018-10-15 14:57:23,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-15 14:57:23,127 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2018-10-15 14:57:23,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 14:57:23,129 INFO L225 Difference]: With dead ends: 31 [2018-10-15 14:57:23,129 INFO L226 Difference]: Without dead ends: 31 [2018-10-15 14:57:23,131 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2018-10-15 14:57:23,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-10-15 14:57:23,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-10-15 14:57:23,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-10-15 14:57:23,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-10-15 14:57:23,136 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 26 [2018-10-15 14:57:23,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 14:57:23,137 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-10-15 14:57:23,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-15 14:57:23,137 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-10-15 14:57:23,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-15 14:57:23,138 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 14:57:23,138 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 14:57:23,139 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 14:57:23,139 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 14:57:23,139 INFO L82 PathProgramCache]: Analyzing trace with hash -1540673568, now seen corresponding path program 4 times [2018-10-15 14:57:23,140 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 14:57:23,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 14:57:23,669 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-15 14:57:23,722 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 14:57:23,723 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 14:57:23,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-10-15 14:57:23,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-15 14:57:23,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-15 14:57:23,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-15 14:57:23,725 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 9 states. [2018-10-15 14:57:23,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 14:57:23,999 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2018-10-15 14:57:24,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-15 14:57:24,000 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-10-15 14:57:24,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 14:57:24,001 INFO L225 Difference]: With dead ends: 41 [2018-10-15 14:57:24,001 INFO L226 Difference]: Without dead ends: 37 [2018-10-15 14:57:24,002 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2018-10-15 14:57:24,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-10-15 14:57:24,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2018-10-15 14:57:24,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-10-15 14:57:24,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-10-15 14:57:24,007 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 30 [2018-10-15 14:57:24,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 14:57:24,007 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-10-15 14:57:24,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-15 14:57:24,008 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-10-15 14:57:24,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-15 14:57:24,009 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 14:57:24,009 INFO L375 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 14:57:24,009 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 14:57:24,010 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 14:57:24,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1432714860, now seen corresponding path program 5 times [2018-10-15 14:57:24,011 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 14:57:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 14:57:24,220 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 14:57:24,221 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 14:57:24,221 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-15 14:57:24,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-15 14:57:24,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-15 14:57:24,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2018-10-15 14:57:24,223 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 12 states. [2018-10-15 14:57:24,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 14:57:24,451 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-10-15 14:57:24,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-15 14:57:24,451 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 34 [2018-10-15 14:57:24,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 14:57:24,452 INFO L225 Difference]: With dead ends: 24 [2018-10-15 14:57:24,452 INFO L226 Difference]: Without dead ends: 0 [2018-10-15 14:57:24,453 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=255, Unknown=0, NotChecked=0, Total=420 [2018-10-15 14:57:24,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-15 14:57:24,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-15 14:57:24,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-15 14:57:24,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-15 14:57:24,454 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-10-15 14:57:24,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 14:57:24,454 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-15 14:57:24,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-15 14:57:24,454 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-15 14:57:24,455 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-15 14:57:24,460 INFO L202 PluginConnector]: Adding new model cggmp2005.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 02:57:24 BoogieIcfgContainer [2018-10-15 14:57:24,460 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-15 14:57:24,461 INFO L168 Benchmark]: Toolchain (without parser) took 3491.98 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: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-15 14:57:24,462 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.27 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 14:57:24,463 INFO L168 Benchmark]: Boogie Preprocessor took 53.00 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 14:57:24,464 INFO L168 Benchmark]: RCFGBuilder took 315.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2018-10-15 14:57:24,465 INFO L168 Benchmark]: TraceAbstraction took 3118.99 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: 126.9 MB). Peak memory consumption was 126.9 MB. Max. memory is 7.1 GB. [2018-10-15 14:57:24,469 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 0.27 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. * Boogie Preprocessor took 53.00 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 315.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3118.99 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: 126.9 MB). Peak memory consumption was 126.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 35]: 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, 19 locations, 1 error locations. SAFE Result, 3.0s OverallTime, 6 OverallIterations, 6 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 88 SDtfs, 48 SDslu, 239 SDs, 0 SdLazy, 284 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=5, 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, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 11982 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 50/110 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/cggmp2005.c.i_3.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-15_14-57-24-480.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cggmp2005.c.i_3.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-15_14-57-24-480.csv Received shutdown request...