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/half_2_true-unreach-call_true-termination.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2d08e6e [2018-10-15 12:35:05,204 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-15 12:35:05,206 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-15 12:35:05,224 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-15 12:35:05,224 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-15 12:35:05,226 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-15 12:35:05,227 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-15 12:35:05,229 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-15 12:35:05,232 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-15 12:35:05,233 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-15 12:35:05,234 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-15 12:35:05,277 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 12:35:05,286 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-15 12:35:05,287 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-15 12:35:05,288 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-15 12:35:05,288 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-15 12:35:05,288 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-15 12:35:05,288 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-15 12:35:05,289 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-15 12:35:05,289 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-15 12:35:05,289 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-15 12:35:05,290 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-15 12:35:05,290 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-15 12:35:05,290 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-15 12:35:05,290 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-15 12:35:05,291 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-15 12:35:05,291 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-15 12:35:05,335 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-15 12:35:05,347 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-15 12:35:05,352 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-15 12:35:05,356 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-15 12:35:05,357 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-15 12:35:05,357 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/half_2_true-unreach-call_true-termination.i_3.bpl [2018-10-15 12:35:05,358 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/half_2_true-unreach-call_true-termination.i_3.bpl' [2018-10-15 12:35:05,408 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-15 12:35:05,410 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-15 12:35:05,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-15 12:35:05,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-15 12:35:05,411 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-15 12:35:05,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "half_2_true-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:35:05" (1/1) ... [2018-10-15 12:35:05,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "half_2_true-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:35:05" (1/1) ... [2018-10-15 12:35:05,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "half_2_true-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:35:05" (1/1) ... [2018-10-15 12:35:05,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "half_2_true-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:35:05" (1/1) ... [2018-10-15 12:35:05,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "half_2_true-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:35:05" (1/1) ... [2018-10-15 12:35:05,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "half_2_true-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:35:05" (1/1) ... [2018-10-15 12:35:05,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "half_2_true-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:35:05" (1/1) ... [2018-10-15 12:35:05,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-15 12:35:05,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-15 12:35:05,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-15 12:35:05,462 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-15 12:35:05,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "half_2_true-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:35:05" (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 12:35:05,539 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-15 12:35:05,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-15 12:35:05,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-15 12:35:05,920 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-15 12:35:05,921 INFO L202 PluginConnector]: Adding new model half_2_true-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:35:05 BoogieIcfgContainer [2018-10-15 12:35:05,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-15 12:35:05,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-15 12:35:05,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-15 12:35:05,926 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-15 12:35:05,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "half_2_true-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:35:05" (1/2) ... [2018-10-15 12:35:05,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb26121 and model type half_2_true-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:35:05, skipping insertion in model container [2018-10-15 12:35:05,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "half_2_true-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:35:05" (2/2) ... [2018-10-15 12:35:05,930 INFO L112 eAbstractionObserver]: Analyzing ICFG half_2_true-unreach-call_true-termination.i_3.bpl [2018-10-15 12:35:05,942 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-15 12:35:05,951 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-15 12:35:05,970 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-15 12:35:06,000 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-15 12:35:06,001 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-15 12:35:06,002 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-15 12:35:06,002 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-15 12:35:06,002 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-15 12:35:06,002 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-15 12:35:06,003 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-15 12:35:06,003 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-15 12:35:06,003 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-15 12:35:06,019 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-10-15 12:35:06,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-15 12:35:06,033 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:35:06,035 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:35:06,036 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:35:06,041 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:35:06,042 INFO L82 PathProgramCache]: Analyzing trace with hash 452102543, now seen corresponding path program 1 times [2018-10-15 12:35:06,091 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:35:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:35:06,293 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 12:35:06,295 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 12:35:06,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-15 12:35:06,301 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-15 12:35:06,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-15 12:35:06,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-15 12:35:06,316 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 5 states. [2018-10-15 12:35:06,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:35:06,487 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2018-10-15 12:35:06,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-15 12:35:06,489 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-10-15 12:35:06,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:35:06,500 INFO L225 Difference]: With dead ends: 31 [2018-10-15 12:35:06,501 INFO L226 Difference]: Without dead ends: 29 [2018-10-15 12:35:06,503 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-15 12:35:06,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-10-15 12:35:06,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 25. [2018-10-15 12:35:06,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-10-15 12:35:06,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-10-15 12:35:06,539 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 19 [2018-10-15 12:35:06,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:35:06,540 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-10-15 12:35:06,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-15 12:35:06,540 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-10-15 12:35:06,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-15 12:35:06,541 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:35:06,541 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:35:06,542 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:35:06,542 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:35:06,542 INFO L82 PathProgramCache]: Analyzing trace with hash 572618144, now seen corresponding path program 1 times [2018-10-15 12:35:06,543 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:35:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:35:07,058 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 12:35:07,058 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 12:35:07,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-10-15 12:35:07,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-15 12:35:07,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-15 12:35:07,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-10-15 12:35:07,062 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 11 states. [2018-10-15 12:35:07,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:35:07,579 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-10-15 12:35:07,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-15 12:35:07,580 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 24 [2018-10-15 12:35:07,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:35:07,581 INFO L225 Difference]: With dead ends: 38 [2018-10-15 12:35:07,581 INFO L226 Difference]: Without dead ends: 32 [2018-10-15 12:35:07,583 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2018-10-15 12:35:07,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-10-15 12:35:07,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2018-10-15 12:35:07,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-10-15 12:35:07,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2018-10-15 12:35:07,588 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 24 [2018-10-15 12:35:07,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:35:07,589 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2018-10-15 12:35:07,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-15 12:35:07,589 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2018-10-15 12:35:07,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-15 12:35:07,590 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:35:07,590 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:35:07,591 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:35:07,591 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:35:07,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1013476399, now seen corresponding path program 2 times [2018-10-15 12:35:07,592 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:35:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:35:08,168 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 12:35:08,168 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 12:35:08,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-10-15 12:35:08,169 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-15 12:35:08,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-15 12:35:08,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-10-15 12:35:08,170 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 12 states. [2018-10-15 12:35:08,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:35:08,675 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-10-15 12:35:08,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-15 12:35:08,675 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 29 [2018-10-15 12:35:08,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:35:08,676 INFO L225 Difference]: With dead ends: 28 [2018-10-15 12:35:08,676 INFO L226 Difference]: Without dead ends: 0 [2018-10-15 12:35:08,677 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2018-10-15 12:35:08,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-15 12:35:08,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-15 12:35:08,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-15 12:35:08,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-15 12:35:08,681 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2018-10-15 12:35:08,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:35:08,681 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-15 12:35:08,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-15 12:35:08,683 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-15 12:35:08,683 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-15 12:35:08,689 INFO L202 PluginConnector]: Adding new model half_2_true-unreach-call_true-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:35:08 BoogieIcfgContainer [2018-10-15 12:35:08,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-15 12:35:08,690 INFO L168 Benchmark]: Toolchain (without parser) took 3281.23 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: 137.5 MB). Peak memory consumption was 137.5 MB. Max. memory is 7.1 GB. [2018-10-15 12:35:08,693 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 12:35:08,694 INFO L168 Benchmark]: Boogie Preprocessor took 50.27 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 12:35:08,696 INFO L168 Benchmark]: RCFGBuilder took 460.40 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 12:35:08,697 INFO L168 Benchmark]: TraceAbstraction took 2766.51 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: 116.3 MB). Peak memory consumption was 116.3 MB. Max. memory is 7.1 GB. [2018-10-15 12:35:08,702 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 50.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 460.40 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 2766.51 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: 116.3 MB). Peak memory consumption was 116.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: 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, 26 locations, 1 error locations. SAFE Result, 2.6s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 53 SDtfs, 56 SDslu, 222 SDs, 0 SdLazy, 232 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 4942 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 1/8 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/half_2_true-unreach-call_true-termination.i_3.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-15_12-35-08-723.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/half_2_true-unreach-call_true-termination.i_3.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-15_12-35-08-723.csv Received shutdown request...