java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBplTransformed.xml -s ../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf -i ../../../trunk/examples/programs/20181015-LoopsPathprograms/n.c11_true-unreach-call_false-termination.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2d08e6e [2018-10-15 13:04:44,385 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-15 13:04:44,387 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-15 13:04:44,400 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-15 13:04:44,400 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-15 13:04:44,401 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-15 13:04:44,402 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-15 13:04:44,404 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-15 13:04:44,406 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-15 13:04:44,407 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-15 13:04:44,408 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-15 13:04:44,447 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 13:04:44,457 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-15 13:04:44,457 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-15 13:04:44,458 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-15 13:04:44,458 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-15 13:04:44,458 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-15 13:04:44,459 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-15 13:04:44,459 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-15 13:04:44,460 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-15 13:04:44,460 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-15 13:04:44,460 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-15 13:04:44,460 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-15 13:04:44,460 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-15 13:04:44,461 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-15 13:04:44,461 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-15 13:04:44,462 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-15 13:04:44,507 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-15 13:04:44,521 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-15 13:04:44,527 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-15 13:04:44,529 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-15 13:04:44,529 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-15 13:04:44,530 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/n.c11_true-unreach-call_false-termination.i_3.bpl [2018-10-15 13:04:44,530 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/n.c11_true-unreach-call_false-termination.i_3.bpl' [2018-10-15 13:04:44,595 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-15 13:04:44,597 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-15 13:04:44,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-15 13:04:44,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-15 13:04:44,598 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-15 13:04:44,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "n.c11_true-unreach-call_false-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:04:44" (1/1) ... [2018-10-15 13:04:44,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "n.c11_true-unreach-call_false-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:04:44" (1/1) ... [2018-10-15 13:04:44,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "n.c11_true-unreach-call_false-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:04:44" (1/1) ... [2018-10-15 13:04:44,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "n.c11_true-unreach-call_false-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:04:44" (1/1) ... [2018-10-15 13:04:44,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "n.c11_true-unreach-call_false-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:04:44" (1/1) ... [2018-10-15 13:04:44,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "n.c11_true-unreach-call_false-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:04:44" (1/1) ... [2018-10-15 13:04:44,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "n.c11_true-unreach-call_false-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:04:44" (1/1) ... [2018-10-15 13:04:44,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-15 13:04:44,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-15 13:04:44,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-15 13:04:44,652 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-15 13:04:44,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "n.c11_true-unreach-call_false-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:04:44" (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 13:04:44,728 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-15 13:04:44,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-15 13:04:44,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-15 13:04:45,128 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-15 13:04:45,129 INFO L202 PluginConnector]: Adding new model n.c11_true-unreach-call_false-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:04:45 BoogieIcfgContainer [2018-10-15 13:04:45,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-15 13:04:45,130 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-15 13:04:45,130 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-15 13:04:45,131 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-15 13:04:45,137 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "n.c11_true-unreach-call_false-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:04:45" (1/1) ... [2018-10-15 13:04:45,143 WARN L219 ansformationObserver]: HeapSeparator: input icfg has no '#valid' array -- returning unchanged Icfg! [2018-10-15 13:04:45,162 INFO L202 PluginConnector]: Adding new model n.c11_true-unreach-call_false-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 01:04:45 BasicIcfg [2018-10-15 13:04:45,162 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-15 13:04:45,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-15 13:04:45,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-15 13:04:45,168 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-15 13:04:45,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "n.c11_true-unreach-call_false-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 01:04:44" (1/3) ... [2018-10-15 13:04:45,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c607e9 and model type n.c11_true-unreach-call_false-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:04:45, skipping insertion in model container [2018-10-15 13:04:45,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "n.c11_true-unreach-call_false-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:04:45" (2/3) ... [2018-10-15 13:04:45,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c607e9 and model type n.c11_true-unreach-call_false-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:04:45, skipping insertion in model container [2018-10-15 13:04:45,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "n.c11_true-unreach-call_false-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 01:04:45" (3/3) ... [2018-10-15 13:04:45,173 INFO L112 eAbstractionObserver]: Analyzing ICFG n.c11_true-unreach-call_false-termination.i_3.bplleft_unchanged_by_heapseparator [2018-10-15 13:04:45,186 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-15 13:04:45,198 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-15 13:04:45,220 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-15 13:04:45,250 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-15 13:04:45,251 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-15 13:04:45,251 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-15 13:04:45,251 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-15 13:04:45,252 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-15 13:04:45,252 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-15 13:04:45,252 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-15 13:04:45,252 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-15 13:04:45,252 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-15 13:04:45,268 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-10-15 13:04:45,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-15 13:04:45,278 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 13:04:45,279 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 13:04:45,280 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 13:04:45,296 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 13:04:45,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1215222149, now seen corresponding path program 1 times [2018-10-15 13:04:45,377 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 13:04:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 13:04:45,620 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 13:04:45,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 13:04:45,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-15 13:04:45,628 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-15 13:04:45,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-15 13:04:45,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-15 13:04:45,646 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 6 states. [2018-10-15 13:04:45,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 13:04:45,862 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2018-10-15 13:04:45,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-15 13:04:45,864 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-10-15 13:04:45,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 13:04:45,877 INFO L225 Difference]: With dead ends: 32 [2018-10-15 13:04:45,877 INFO L226 Difference]: Without dead ends: 26 [2018-10-15 13:04:45,880 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-10-15 13:04:45,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-10-15 13:04:45,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 21. [2018-10-15 13:04:45,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-10-15 13:04:45,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-10-15 13:04:45,917 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 13 [2018-10-15 13:04:45,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 13:04:45,917 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-10-15 13:04:45,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-15 13:04:45,918 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-10-15 13:04:45,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-15 13:04:45,919 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 13:04:45,919 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] [2018-10-15 13:04:45,919 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 13:04:45,920 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 13:04:45,920 INFO L82 PathProgramCache]: Analyzing trace with hash -346643181, now seen corresponding path program 1 times [2018-10-15 13:04:45,921 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 13:04:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 13:04:46,367 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 13:04:46,367 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 13:04:46,367 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-10-15 13:04:46,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-15 13:04:46,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-15 13:04:46,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-10-15 13:04:46,370 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 8 states. [2018-10-15 13:04:46,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 13:04:46,728 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2018-10-15 13:04:46,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-15 13:04:46,728 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2018-10-15 13:04:46,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 13:04:46,730 INFO L225 Difference]: With dead ends: 39 [2018-10-15 13:04:46,730 INFO L226 Difference]: Without dead ends: 33 [2018-10-15 13:04:46,731 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-10-15 13:04:46,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-10-15 13:04:46,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2018-10-15 13:04:46,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-10-15 13:04:46,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-10-15 13:04:46,736 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 20 [2018-10-15 13:04:46,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 13:04:46,737 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-10-15 13:04:46,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-15 13:04:46,737 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-10-15 13:04:46,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-15 13:04:46,738 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 13:04:46,738 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 13:04:46,739 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 13:04:46,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 13:04:46,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1116580411, now seen corresponding path program 2 times [2018-10-15 13:04:46,740 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 13:04:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 13:04:47,235 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 13:04:47,236 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 13:04:47,236 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-10-15 13:04:47,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-15 13:04:47,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-15 13:04:47,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-10-15 13:04:47,241 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 10 states. [2018-10-15 13:04:47,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 13:04:47,647 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2018-10-15 13:04:47,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-15 13:04:47,648 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2018-10-15 13:04:47,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 13:04:47,650 INFO L225 Difference]: With dead ends: 46 [2018-10-15 13:04:47,650 INFO L226 Difference]: Without dead ends: 40 [2018-10-15 13:04:47,651 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-10-15 13:04:47,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-10-15 13:04:47,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 35. [2018-10-15 13:04:47,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-10-15 13:04:47,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-10-15 13:04:47,660 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 27 [2018-10-15 13:04:47,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 13:04:47,662 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-10-15 13:04:47,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-15 13:04:47,662 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-10-15 13:04:47,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-15 13:04:47,663 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 13:04:47,664 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 13:04:47,664 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 13:04:47,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 13:04:47,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1885460691, now seen corresponding path program 3 times [2018-10-15 13:04:47,665 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 13:04:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 13:04:48,041 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 13:04:48,042 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 13:04:48,042 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-10-15 13:04:48,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-15 13:04:48,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-15 13:04:48,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-10-15 13:04:48,043 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 12 states. [2018-10-15 13:04:48,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 13:04:48,538 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2018-10-15 13:04:48,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-15 13:04:48,539 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 34 [2018-10-15 13:04:48,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 13:04:48,540 INFO L225 Difference]: With dead ends: 53 [2018-10-15 13:04:48,541 INFO L226 Difference]: Without dead ends: 47 [2018-10-15 13:04:48,541 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2018-10-15 13:04:48,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-10-15 13:04:48,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 42. [2018-10-15 13:04:48,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-10-15 13:04:48,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2018-10-15 13:04:48,554 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 34 [2018-10-15 13:04:48,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 13:04:48,555 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2018-10-15 13:04:48,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-15 13:04:48,555 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2018-10-15 13:04:48,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-15 13:04:48,557 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 13:04:48,558 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 13:04:48,558 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 13:04:48,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 13:04:48,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1255762437, now seen corresponding path program 4 times [2018-10-15 13:04:48,560 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 13:04:48,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 13:04:49,002 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 13:04:49,002 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 13:04:49,003 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-10-15 13:04:49,003 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-15 13:04:49,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-15 13:04:49,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2018-10-15 13:04:49,004 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand 14 states. [2018-10-15 13:04:49,576 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-10-15 13:04:49,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 13:04:49,799 INFO L93 Difference]: Finished difference Result 42 states and 41 transitions. [2018-10-15 13:04:49,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-15 13:04:49,799 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 41 [2018-10-15 13:04:49,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 13:04:49,800 INFO L225 Difference]: With dead ends: 42 [2018-10-15 13:04:49,801 INFO L226 Difference]: Without dead ends: 0 [2018-10-15 13:04:49,801 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2018-10-15 13:04:49,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-15 13:04:49,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-15 13:04:49,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-15 13:04:49,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-15 13:04:49,803 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2018-10-15 13:04:49,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 13:04:49,803 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-15 13:04:49,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-15 13:04:49,803 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-15 13:04:49,803 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-15 13:04:49,809 INFO L202 PluginConnector]: Adding new model n.c11_true-unreach-call_false-termination.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:04:49 BasicIcfg [2018-10-15 13:04:49,809 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-15 13:04:49,810 INFO L168 Benchmark]: Toolchain (without parser) took 5214.16 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 243.2 MB). Peak memory consumption was 243.2 MB. Max. memory is 7.1 GB. [2018-10-15 13:04:49,811 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 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 13:04:49,812 INFO L168 Benchmark]: Boogie Preprocessor took 53.21 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 13:04:49,812 INFO L168 Benchmark]: RCFGBuilder took 477.88 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 13:04:49,813 INFO L168 Benchmark]: IcfgTransformer took 33.02 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-15 13:04:49,814 INFO L168 Benchmark]: TraceAbstraction took 4645.41 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 222.0 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. [2018-10-15 13:04:49,818 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 0.19 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 53.21 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 477.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * IcfgTransformer took 33.02 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * TraceAbstraction took 4645.41 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 222.0 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: 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, 22 locations, 1 error locations. SAFE Result, 4.5s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 93 SDtfs, 125 SDslu, 594 SDs, 0 SdLazy, 639 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 20 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 22826 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/80 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/n.c11_true-unreach-call_false-termination.i_3.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-15_13-04-49-831.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/n.c11_true-unreach-call_false-termination.i_3.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-15_13-04-49-831.csv Received shutdown request...