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/ddlm2013_true-unreach-call.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2d08e6e [2018-10-15 12:56:17,493 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-15 12:56:17,496 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-15 12:56:17,514 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-15 12:56:17,514 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-15 12:56:17,515 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-15 12:56:17,516 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-15 12:56:17,518 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-15 12:56:17,520 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-15 12:56:17,521 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-15 12:56:17,522 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-15 12:56:17,522 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-15 12:56:17,523 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-15 12:56:17,524 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-15 12:56:17,525 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-15 12:56:17,526 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-15 12:56:17,526 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-15 12:56:17,528 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-15 12:56:17,530 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-15 12:56:17,534 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-15 12:56:17,535 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-15 12:56:17,536 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-15 12:56:17,539 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-15 12:56:17,539 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-15 12:56:17,540 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-15 12:56:17,543 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-15 12:56:17,544 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-15 12:56:17,545 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-15 12:56:17,548 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-15 12:56:17,549 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-15 12:56:17,549 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-15 12:56:17,550 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-15 12:56:17,550 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-15 12:56:17,550 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-15 12:56:17,552 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-15 12:56:17,554 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-15 12:56:17,555 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 12:56:17,574 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-15 12:56:17,575 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-15 12:56:17,575 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-15 12:56:17,576 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-15 12:56:17,576 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-15 12:56:17,576 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-15 12:56:17,580 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-15 12:56:17,580 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-15 12:56:17,581 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-15 12:56:17,581 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-15 12:56:17,581 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-15 12:56:17,581 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-15 12:56:17,581 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-15 12:56:17,583 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-15 12:56:17,583 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-15 12:56:17,652 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-15 12:56:17,668 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-15 12:56:17,674 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-15 12:56:17,676 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-15 12:56:17,676 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-15 12:56:17,677 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/ddlm2013_true-unreach-call.i_3.bpl [2018-10-15 12:56:17,677 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/ddlm2013_true-unreach-call.i_3.bpl' [2018-10-15 12:56:17,746 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-15 12:56:17,748 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-15 12:56:17,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-15 12:56:17,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-15 12:56:17,749 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-15 12:56:17,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ddlm2013_true-unreach-call.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:56:17" (1/1) ... [2018-10-15 12:56:17,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ddlm2013_true-unreach-call.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:56:17" (1/1) ... [2018-10-15 12:56:17,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ddlm2013_true-unreach-call.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:56:17" (1/1) ... [2018-10-15 12:56:17,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ddlm2013_true-unreach-call.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:56:17" (1/1) ... [2018-10-15 12:56:17,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ddlm2013_true-unreach-call.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:56:17" (1/1) ... [2018-10-15 12:56:17,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ddlm2013_true-unreach-call.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:56:17" (1/1) ... [2018-10-15 12:56:17,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ddlm2013_true-unreach-call.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:56:17" (1/1) ... [2018-10-15 12:56:17,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-15 12:56:17,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-15 12:56:17,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-15 12:56:17,803 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-15 12:56:17,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ddlm2013_true-unreach-call.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:56:17" (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 12:56:17,875 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-15 12:56:17,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-15 12:56:17,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-15 12:56:18,411 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-15 12:56:18,412 INFO L202 PluginConnector]: Adding new model ddlm2013_true-unreach-call.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:56:18 BoogieIcfgContainer [2018-10-15 12:56:18,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-15 12:56:18,413 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-15 12:56:18,413 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-15 12:56:18,414 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-15 12:56:18,419 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "ddlm2013_true-unreach-call.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:56:18" (1/1) ... [2018-10-15 12:56:18,425 WARN L219 ansformationObserver]: HeapSeparator: input icfg has no '#valid' array -- returning unchanged Icfg! [2018-10-15 12:56:18,446 INFO L202 PluginConnector]: Adding new model ddlm2013_true-unreach-call.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 12:56:18 BasicIcfg [2018-10-15 12:56:18,446 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-15 12:56:18,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-15 12:56:18,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-15 12:56:18,451 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-15 12:56:18,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ddlm2013_true-unreach-call.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:56:17" (1/3) ... [2018-10-15 12:56:18,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb9e131 and model type ddlm2013_true-unreach-call.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:56:18, skipping insertion in model container [2018-10-15 12:56:18,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ddlm2013_true-unreach-call.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:56:18" (2/3) ... [2018-10-15 12:56:18,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb9e131 and model type ddlm2013_true-unreach-call.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:56:18, skipping insertion in model container [2018-10-15 12:56:18,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ddlm2013_true-unreach-call.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 12:56:18" (3/3) ... [2018-10-15 12:56:18,455 INFO L112 eAbstractionObserver]: Analyzing ICFG ddlm2013_true-unreach-call.i_3.bplleft_unchanged_by_heapseparator [2018-10-15 12:56:18,465 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-15 12:56:18,474 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-15 12:56:18,513 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-15 12:56:18,543 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-15 12:56:18,544 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-15 12:56:18,544 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-15 12:56:18,544 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-15 12:56:18,544 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-15 12:56:18,544 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-15 12:56:18,545 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-15 12:56:18,545 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-15 12:56:18,545 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-15 12:56:18,560 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-10-15 12:56:18,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-15 12:56:18,569 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:56:18,570 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] [2018-10-15 12:56:18,573 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:56:18,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:56:18,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1289439882, now seen corresponding path program 1 times [2018-10-15 12:56:18,634 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:56:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:56:18,880 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 12:56:18,882 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 12:56:18,883 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-15 12:56:18,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-15 12:56:18,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-15 12:56:18,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-15 12:56:18,904 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 6 states. [2018-10-15 12:56:19,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:56:19,271 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-10-15 12:56:19,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-15 12:56:19,274 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-10-15 12:56:19,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:56:19,294 INFO L225 Difference]: With dead ends: 43 [2018-10-15 12:56:19,294 INFO L226 Difference]: Without dead ends: 37 [2018-10-15 12:56:19,297 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-15 12:56:19,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-10-15 12:56:19,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2018-10-15 12:56:19,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-15 12:56:19,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-10-15 12:56:19,338 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 23 [2018-10-15 12:56:19,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:56:19,339 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-10-15 12:56:19,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-15 12:56:19,339 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-10-15 12:56:19,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-15 12:56:19,341 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:56:19,341 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:56:19,341 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:56:19,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:56:19,342 INFO L82 PathProgramCache]: Analyzing trace with hash 748774604, now seen corresponding path program 1 times [2018-10-15 12:56:19,343 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:56:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:56:19,734 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 12:56:19,735 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 12:56:19,735 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-10-15 12:56:19,737 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-15 12:56:19,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-15 12:56:19,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-10-15 12:56:19,738 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 10 states. [2018-10-15 12:56:20,258 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-10-15 12:56:20,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:56:20,782 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2018-10-15 12:56:20,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-15 12:56:20,783 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2018-10-15 12:56:20,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:56:20,785 INFO L225 Difference]: With dead ends: 53 [2018-10-15 12:56:20,785 INFO L226 Difference]: Without dead ends: 47 [2018-10-15 12:56:20,788 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2018-10-15 12:56:20,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-10-15 12:56:20,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2018-10-15 12:56:20,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-10-15 12:56:20,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2018-10-15 12:56:20,795 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 33 [2018-10-15 12:56:20,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:56:20,796 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2018-10-15 12:56:20,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-15 12:56:20,799 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2018-10-15 12:56:20,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-10-15 12:56:20,800 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:56:20,801 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:56:20,801 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:56:20,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:56:20,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1445159074, now seen corresponding path program 2 times [2018-10-15 12:56:20,803 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:56:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:56:21,359 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 12:56:21,360 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 12:56:21,360 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-10-15 12:56:21,361 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-15 12:56:21,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-15 12:56:21,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-10-15 12:56:21,362 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 14 states. [2018-10-15 12:56:21,792 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 26 [2018-10-15 12:56:22,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:56:22,166 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2018-10-15 12:56:22,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-15 12:56:22,167 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 43 [2018-10-15 12:56:22,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:56:22,168 INFO L225 Difference]: With dead ends: 42 [2018-10-15 12:56:22,168 INFO L226 Difference]: Without dead ends: 0 [2018-10-15 12:56:22,169 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=103, Invalid=497, Unknown=0, NotChecked=0, Total=600 [2018-10-15 12:56:22,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-15 12:56:22,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-15 12:56:22,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-15 12:56:22,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-15 12:56:22,170 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2018-10-15 12:56:22,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:56:22,170 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-15 12:56:22,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-15 12:56:22,170 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-15 12:56:22,171 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-15 12:56:22,176 INFO L202 PluginConnector]: Adding new model ddlm2013_true-unreach-call.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:56:22 BasicIcfg [2018-10-15 12:56:22,176 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-15 12:56:22,177 INFO L168 Benchmark]: Toolchain (without parser) took 4430.19 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: 200.9 MB). Peak memory consumption was 200.9 MB. Max. memory is 7.1 GB. [2018-10-15 12:56:22,178 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 12:56:22,179 INFO L168 Benchmark]: Boogie Preprocessor took 53.56 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 12:56:22,180 INFO L168 Benchmark]: RCFGBuilder took 609.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-15 12:56:22,181 INFO L168 Benchmark]: IcfgTransformer took 33.42 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 12:56:22,181 INFO L168 Benchmark]: TraceAbstraction took 3728.92 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: 179.8 MB). Peak memory consumption was 179.8 MB. Max. memory is 7.1 GB. [2018-10-15 12:56:22,185 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 53.56 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 609.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * IcfgTransformer took 33.42 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. * TraceAbstraction took 3728.92 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: 179.8 MB). Peak memory consumption was 179.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 59]: 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, 34 locations, 1 error locations. SAFE Result, 3.6s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 78 SDtfs, 90 SDslu, 407 SDs, 0 SdLazy, 265 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 28948 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/16 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/ddlm2013_true-unreach-call.i_3.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-15_12-56-22-198.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/ddlm2013_true-unreach-call.i_3.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-15_12-56-22-198.csv Received shutdown request...