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/20181015-LoopsPathprograms/cggmp2005_true-unreach-call_true-termination.c.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2d08e6e [2018-10-15 12:26:31,160 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-15 12:26:31,163 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-15 12:26:31,176 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-15 12:26:31,176 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-15 12:26:31,178 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-15 12:26:31,179 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-15 12:26:31,181 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-15 12:26:31,183 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-15 12:26:31,183 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-15 12:26:31,184 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-15 12:26:31,209 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 12:26:31,218 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-15 12:26:31,218 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-15 12:26:31,219 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-15 12:26:31,220 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-15 12:26:31,220 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-15 12:26:31,220 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-15 12:26:31,221 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-15 12:26:31,221 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-15 12:26:31,221 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-15 12:26:31,221 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-15 12:26:31,221 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-15 12:26:31,222 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-15 12:26:31,222 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-15 12:26:31,223 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-15 12:26:31,223 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-15 12:26:31,288 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-15 12:26:31,301 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-15 12:26:31,305 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-15 12:26:31,306 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-15 12:26:31,307 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-15 12:26:31,308 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/cggmp2005_true-unreach-call_true-termination.c.i_3.bpl [2018-10-15 12:26:31,308 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/cggmp2005_true-unreach-call_true-termination.c.i_3.bpl' [2018-10-15 12:26:31,366 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-15 12:26:31,368 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-15 12:26:31,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-15 12:26:31,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-15 12:26:31,370 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-15 12:26:31,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "cggmp2005_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:26:31" (1/1) ... [2018-10-15 12:26:31,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "cggmp2005_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:26:31" (1/1) ... [2018-10-15 12:26:31,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "cggmp2005_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:26:31" (1/1) ... [2018-10-15 12:26:31,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "cggmp2005_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:26:31" (1/1) ... [2018-10-15 12:26:31,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "cggmp2005_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:26:31" (1/1) ... [2018-10-15 12:26:31,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "cggmp2005_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:26:31" (1/1) ... [2018-10-15 12:26:31,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "cggmp2005_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:26:31" (1/1) ... [2018-10-15 12:26:31,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-15 12:26:31,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-15 12:26:31,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-15 12:26:31,421 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-15 12:26:31,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "cggmp2005_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:26:31" (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 12:26:31,492 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-15 12:26:31,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-15 12:26:31,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-15 12:26:31,694 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-15 12:26:31,694 INFO L202 PluginConnector]: Adding new model cggmp2005_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:26:31 BoogieIcfgContainer [2018-10-15 12:26:31,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-15 12:26:31,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-15 12:26:31,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-15 12:26:31,699 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-15 12:26:31,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:26:31" (1/2) ... [2018-10-15 12:26:31,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b34ac1 and model type cggmp2005_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:26:31, skipping insertion in model container [2018-10-15 12:26:31,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:26:31" (2/2) ... [2018-10-15 12:26:31,703 INFO L112 eAbstractionObserver]: Analyzing ICFG cggmp2005_true-unreach-call_true-termination.c.i_3.bpl [2018-10-15 12:26:31,714 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-15 12:26:31,722 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-15 12:26:31,740 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-15 12:26:31,772 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-15 12:26:31,773 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-15 12:26:31,773 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-15 12:26:31,774 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-15 12:26:31,774 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-15 12:26:31,774 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-15 12:26:31,774 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-15 12:26:31,774 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-15 12:26:31,775 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-15 12:26:31,791 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-10-15 12:26:31,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-15 12:26:31,800 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:26:31,801 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:26:31,802 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:26:31,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:26:31,811 INFO L82 PathProgramCache]: Analyzing trace with hash -495131636, now seen corresponding path program 1 times [2018-10-15 12:26:31,878 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:26:31,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:26:32,093 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 12:26:32,096 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 12:26:32,096 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-15 12:26:32,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-15 12:26:32,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-15 12:26:32,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-15 12:26:32,121 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 4 states. [2018-10-15 12:26:32,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:26:32,268 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-10-15 12:26:32,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-15 12:26:32,270 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-10-15 12:26:32,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:26:32,281 INFO L225 Difference]: With dead ends: 17 [2018-10-15 12:26:32,281 INFO L226 Difference]: Without dead ends: 17 [2018-10-15 12:26:32,283 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 12:26:32,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-10-15 12:26:32,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2018-10-15 12:26:32,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-10-15 12:26:32,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-10-15 12:26:32,320 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 12 [2018-10-15 12:26:32,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:26:32,321 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-10-15 12:26:32,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-15 12:26:32,321 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-10-15 12:26:32,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-15 12:26:32,322 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:26:32,322 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:26:32,323 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:26:32,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:26:32,323 INFO L82 PathProgramCache]: Analyzing trace with hash -995566987, now seen corresponding path program 1 times [2018-10-15 12:26:32,324 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:26:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:26:32,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 12:26:32,450 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 12:26:32,450 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-10-15 12:26:32,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-15 12:26:32,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-15 12:26:32,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-15 12:26:32,454 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 6 states. [2018-10-15 12:26:32,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:26:32,606 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2018-10-15 12:26:32,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-15 12:26:32,607 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-10-15 12:26:32,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:26:32,608 INFO L225 Difference]: With dead ends: 20 [2018-10-15 12:26:32,608 INFO L226 Difference]: Without dead ends: 20 [2018-10-15 12:26:32,609 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 12:26:32,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-10-15 12:26:32,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2018-10-15 12:26:32,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-10-15 12:26:32,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-10-15 12:26:32,614 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 15 [2018-10-15 12:26:32,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:26:32,615 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-10-15 12:26:32,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-15 12:26:32,615 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-10-15 12:26:32,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-15 12:26:32,616 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:26:32,616 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:26:32,616 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:26:32,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:26:32,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1633624212, now seen corresponding path program 2 times [2018-10-15 12:26:32,618 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:26:32,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:26:32,973 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 12:26:32,973 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 12:26:32,973 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-10-15 12:26:32,974 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-15 12:26:32,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-15 12:26:32,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-10-15 12:26:32,975 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 8 states. [2018-10-15 12:26:33,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:26:33,096 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-10-15 12:26:33,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-15 12:26:33,097 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-10-15 12:26:33,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:26:33,099 INFO L225 Difference]: With dead ends: 23 [2018-10-15 12:26:33,099 INFO L226 Difference]: Without dead ends: 23 [2018-10-15 12:26:33,100 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2018-10-15 12:26:33,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-10-15 12:26:33,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-10-15 12:26:33,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-10-15 12:26:33,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-10-15 12:26:33,104 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 18 [2018-10-15 12:26:33,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:26:33,104 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-10-15 12:26:33,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-15 12:26:33,105 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-10-15 12:26:33,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-15 12:26:33,106 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:26:33,106 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:26:33,106 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:26:33,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:26:33,107 INFO L82 PathProgramCache]: Analyzing trace with hash -471162091, now seen corresponding path program 3 times [2018-10-15 12:26:33,108 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:26:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:26:33,398 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 12:26:33,399 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 12:26:33,399 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-10-15 12:26:33,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-15 12:26:33,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-15 12:26:33,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2018-10-15 12:26:33,401 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 10 states. [2018-10-15 12:26:33,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:26:33,554 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2018-10-15 12:26:33,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-15 12:26:33,555 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2018-10-15 12:26:33,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:26:33,556 INFO L225 Difference]: With dead ends: 25 [2018-10-15 12:26:33,556 INFO L226 Difference]: Without dead ends: 25 [2018-10-15 12:26:33,557 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 12:26:33,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-10-15 12:26:33,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-10-15 12:26:33,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-10-15 12:26:33,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-10-15 12:26:33,561 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 21 [2018-10-15 12:26:33,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:26:33,562 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-10-15 12:26:33,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-15 12:26:33,562 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-10-15 12:26:33,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-15 12:26:33,563 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:26:33,563 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:26:33,564 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:26:33,564 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:26:33,564 INFO L82 PathProgramCache]: Analyzing trace with hash 116576972, now seen corresponding path program 4 times [2018-10-15 12:26:33,565 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:26:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:26:34,078 WARN L179 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 6 [2018-10-15 12:26:34,109 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 12:26:34,109 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 12:26:34,109 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-10-15 12:26:34,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-15 12:26:34,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-15 12:26:34,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-15 12:26:34,113 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 9 states. [2018-10-15 12:26:34,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:26:34,316 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-10-15 12:26:34,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-15 12:26:34,317 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2018-10-15 12:26:34,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:26:34,319 INFO L225 Difference]: With dead ends: 34 [2018-10-15 12:26:34,319 INFO L226 Difference]: Without dead ends: 30 [2018-10-15 12:26:34,320 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 12:26:34,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-10-15 12:26:34,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2018-10-15 12:26:34,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-10-15 12:26:34,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-10-15 12:26:34,326 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 24 [2018-10-15 12:26:34,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:26:34,326 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-10-15 12:26:34,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-15 12:26:34,327 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-10-15 12:26:34,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-15 12:26:34,327 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:26:34,328 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:26:34,328 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:26:34,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:26:34,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1130662987, now seen corresponding path program 5 times [2018-10-15 12:26:34,329 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:26:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:26:34,536 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 12:26:34,537 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 12:26:34,537 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-15 12:26:34,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-15 12:26:34,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-15 12:26:34,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2018-10-15 12:26:34,539 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 12 states. [2018-10-15 12:26:34,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:26:34,825 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2018-10-15 12:26:34,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-15 12:26:34,825 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 27 [2018-10-15 12:26:34,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:26:34,826 INFO L225 Difference]: With dead ends: 19 [2018-10-15 12:26:34,826 INFO L226 Difference]: Without dead ends: 0 [2018-10-15 12:26:34,827 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 12:26:34,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-15 12:26:34,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-15 12:26:34,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-15 12:26:34,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-15 12:26:34,828 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-10-15 12:26:34,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:26:34,828 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-15 12:26:34,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-15 12:26:34,828 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-15 12:26:34,828 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-15 12:26:34,833 INFO L202 PluginConnector]: Adding new model cggmp2005_true-unreach-call_true-termination.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:26:34 BoogieIcfgContainer [2018-10-15 12:26:34,833 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-15 12:26:34,834 INFO L168 Benchmark]: Toolchain (without parser) took 3467.91 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 12:26:34,836 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-15 12:26:34,836 INFO L168 Benchmark]: Boogie Preprocessor took 50.62 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 12:26:34,837 INFO L168 Benchmark]: RCFGBuilder took 274.27 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 12:26:34,838 INFO L168 Benchmark]: TraceAbstraction took 3137.77 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: 126.9 MB). Peak memory consumption was 126.9 MB. Max. memory is 7.1 GB. [2018-10-15 12:26:34,842 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.62 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 274.27 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. * TraceAbstraction took 3137.77 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: 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, 17 locations, 1 error locations. SAFE Result, 3.0s OverallTime, 6 OverallIterations, 5 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 69 SDtfs, 31 SDslu, 165 SDs, 0 SdLazy, 291 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, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 1.6s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 7209 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 35/75 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_true-unreach-call_true-termination.c.i_3.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-15_12-26-34-853.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cggmp2005_true-unreach-call_true-termination.c.i_3.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-15_12-26-34-853.csv Received shutdown request...