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/count_by_1_variant_true-unreach-call_true-termination.i_2.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2d08e6e [2018-10-15 12:55:34,311 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-15 12:55:34,313 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-15 12:55:34,325 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-15 12:55:34,325 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-15 12:55:34,326 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-15 12:55:34,328 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-15 12:55:34,329 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-15 12:55:34,331 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-15 12:55:34,332 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-15 12:55:34,333 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-15 12:55:34,333 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-15 12:55:34,334 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-15 12:55:34,335 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-15 12:55:34,336 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-15 12:55:34,337 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-15 12:55:34,337 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-15 12:55:34,339 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-15 12:55:34,341 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-15 12:55:34,343 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-15 12:55:34,344 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-15 12:55:34,345 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-15 12:55:34,347 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-15 12:55:34,348 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-15 12:55:34,348 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-15 12:55:34,349 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-15 12:55:34,350 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-15 12:55:34,351 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-15 12:55:34,352 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-15 12:55:34,353 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-15 12:55:34,353 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-15 12:55:34,354 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-15 12:55:34,354 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-15 12:55:34,354 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-15 12:55:34,355 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-15 12:55:34,356 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-15 12:55:34,356 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 12:55:34,366 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-15 12:55:34,366 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-15 12:55:34,367 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-15 12:55:34,367 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-15 12:55:34,367 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-15 12:55:34,368 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-15 12:55:34,368 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-15 12:55:34,368 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-15 12:55:34,369 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-15 12:55:34,369 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-15 12:55:34,369 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-15 12:55:34,369 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-15 12:55:34,370 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-15 12:55:34,370 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-15 12:55:34,370 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-15 12:55:34,413 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-15 12:55:34,435 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-15 12:55:34,441 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-15 12:55:34,443 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-15 12:55:34,443 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-15 12:55:34,444 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/count_by_1_variant_true-unreach-call_true-termination.i_2.bpl [2018-10-15 12:55:34,444 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181015-LoopsPathprograms/count_by_1_variant_true-unreach-call_true-termination.i_2.bpl' [2018-10-15 12:55:34,487 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-15 12:55:34,489 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-15 12:55:34,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-15 12:55:34,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-15 12:55:34,490 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-15 12:55:34,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "count_by_1_variant_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:34" (1/1) ... [2018-10-15 12:55:34,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "count_by_1_variant_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:34" (1/1) ... [2018-10-15 12:55:34,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "count_by_1_variant_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:34" (1/1) ... [2018-10-15 12:55:34,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "count_by_1_variant_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:34" (1/1) ... [2018-10-15 12:55:34,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "count_by_1_variant_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:34" (1/1) ... [2018-10-15 12:55:34,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "count_by_1_variant_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:34" (1/1) ... [2018-10-15 12:55:34,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "count_by_1_variant_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:34" (1/1) ... [2018-10-15 12:55:34,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-15 12:55:34,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-15 12:55:34,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-15 12:55:34,538 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-15 12:55:34,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "count_by_1_variant_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:34" (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 12:55:34,612 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-15 12:55:34,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-15 12:55:34,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-15 12:55:34,856 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-15 12:55:34,857 INFO L202 PluginConnector]: Adding new model count_by_1_variant_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:55:34 BoogieIcfgContainer [2018-10-15 12:55:34,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-15 12:55:34,857 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-15 12:55:34,858 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-15 12:55:34,858 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-15 12:55:34,861 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "count_by_1_variant_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:55:34" (1/1) ... [2018-10-15 12:55:34,866 WARN L219 ansformationObserver]: HeapSeparator: input icfg has no '#valid' array -- returning unchanged Icfg! [2018-10-15 12:55:34,881 INFO L202 PluginConnector]: Adding new model count_by_1_variant_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 12:55:34 BasicIcfg [2018-10-15 12:55:34,881 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-15 12:55:34,883 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-15 12:55:34,883 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-15 12:55:34,886 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-15 12:55:34,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "count_by_1_variant_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 12:55:34" (1/3) ... [2018-10-15 12:55:34,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68fb7641 and model type count_by_1_variant_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:55:34, skipping insertion in model container [2018-10-15 12:55:34,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "count_by_1_variant_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:55:34" (2/3) ... [2018-10-15 12:55:34,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68fb7641 and model type count_by_1_variant_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:55:34, skipping insertion in model container [2018-10-15 12:55:34,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "count_by_1_variant_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.10 12:55:34" (3/3) ... [2018-10-15 12:55:34,890 INFO L112 eAbstractionObserver]: Analyzing ICFG count_by_1_variant_true-unreach-call_true-termination.i_2.bplleft_unchanged_by_heapseparator [2018-10-15 12:55:34,899 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-15 12:55:34,906 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-15 12:55:34,921 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-15 12:55:34,948 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-15 12:55:34,949 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-15 12:55:34,950 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-15 12:55:34,950 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-15 12:55:34,950 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-15 12:55:34,950 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-15 12:55:34,950 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-15 12:55:34,951 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-15 12:55:34,951 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-15 12:55:34,965 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2018-10-15 12:55:34,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-15 12:55:34,974 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:55:34,975 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:55:34,977 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:55:34,983 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:55:34,983 INFO L82 PathProgramCache]: Analyzing trace with hash -86374265, now seen corresponding path program 1 times [2018-10-15 12:55:35,036 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:55:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:55:35,216 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 12:55:35,218 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 12:55:35,219 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-15 12:55:35,237 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-15 12:55:35,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-15 12:55:35,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-15 12:55:35,266 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 5 states. [2018-10-15 12:55:35,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:55:35,519 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2018-10-15 12:55:35,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-15 12:55:35,521 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-10-15 12:55:35,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:55:35,532 INFO L225 Difference]: With dead ends: 25 [2018-10-15 12:55:35,533 INFO L226 Difference]: Without dead ends: 25 [2018-10-15 12:55:35,535 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-10-15 12:55:35,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-10-15 12:55:35,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 19. [2018-10-15 12:55:35,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-10-15 12:55:35,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-10-15 12:55:35,571 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2018-10-15 12:55:35,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:55:35,572 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-10-15 12:55:35,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-15 12:55:35,572 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-10-15 12:55:35,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-15 12:55:35,573 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:55:35,573 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 12:55:35,574 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:55:35,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:55:35,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1611884077, now seen corresponding path program 1 times [2018-10-15 12:55:35,576 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:55:35,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:55:36,006 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 12:55:36,007 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 12:55:36,007 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-10-15 12:55:36,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-15 12:55:36,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-15 12:55:36,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-10-15 12:55:36,010 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 9 states. [2018-10-15 12:55:36,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:55:36,388 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2018-10-15 12:55:36,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-15 12:55:36,389 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2018-10-15 12:55:36,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:55:36,390 INFO L225 Difference]: With dead ends: 32 [2018-10-15 12:55:36,390 INFO L226 Difference]: Without dead ends: 32 [2018-10-15 12:55:36,392 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2018-10-15 12:55:36,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-10-15 12:55:36,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2018-10-15 12:55:36,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-10-15 12:55:36,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-10-15 12:55:36,398 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 18 [2018-10-15 12:55:36,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:55:36,398 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-10-15 12:55:36,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-15 12:55:36,399 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-10-15 12:55:36,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-15 12:55:36,399 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 12:55:36,400 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2018-10-15 12:55:36,400 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 12:55:36,400 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 12:55:36,400 INFO L82 PathProgramCache]: Analyzing trace with hash 2097135059, now seen corresponding path program 2 times [2018-10-15 12:55:36,402 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 12:55:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 12:55:36,684 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 12:55:36,684 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 12:55:36,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-10-15 12:55:36,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-15 12:55:36,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-15 12:55:36,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-10-15 12:55:36,689 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 13 states. [2018-10-15 12:55:37,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 12:55:37,247 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2018-10-15 12:55:37,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-15 12:55:37,247 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26 [2018-10-15 12:55:37,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 12:55:37,248 INFO L225 Difference]: With dead ends: 25 [2018-10-15 12:55:37,249 INFO L226 Difference]: Without dead ends: 0 [2018-10-15 12:55:37,250 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=135, Invalid=285, Unknown=0, NotChecked=0, Total=420 [2018-10-15 12:55:37,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-15 12:55:37,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-15 12:55:37,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-15 12:55:37,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-15 12:55:37,255 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-10-15 12:55:37,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 12:55:37,255 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-15 12:55:37,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-15 12:55:37,255 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-15 12:55:37,255 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-15 12:55:37,261 INFO L202 PluginConnector]: Adding new model count_by_1_variant_true-unreach-call_true-termination.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:55:37 BasicIcfg [2018-10-15 12:55:37,261 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-15 12:55:37,262 INFO L168 Benchmark]: Toolchain (without parser) took 2774.51 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-10-15 12:55:37,264 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 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 12:55:37,265 INFO L168 Benchmark]: Boogie Preprocessor took 47.33 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 12:55:37,266 INFO L168 Benchmark]: RCFGBuilder took 319.68 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 12:55:37,267 INFO L168 Benchmark]: IcfgTransformer took 24.19 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 12:55:37,267 INFO L168 Benchmark]: TraceAbstraction took 2378.87 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-15 12:55:37,272 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 0.15 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 47.33 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 319.68 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 24.19 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 2378.87 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 34]: 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, 16 locations, 1 error locations. SAFE Result, 2.3s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 28 SDtfs, 119 SDslu, 80 SDs, 0 SdLazy, 97 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 3032 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 4/23 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/count_by_1_variant_true-unreach-call_true-termination.i_2.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-Benchmark-0-2018-10-15_12-55-37-285.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/count_by_1_variant_true-unreach-call_true-termination.i_2.bpl_heapsep-2018-09-18.epf_AutomizerBplTransformed.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-15_12-55-37-285.csv Received shutdown request...