java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -s ../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d769cf3 [2018-10-15 15:07:58,372 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-15 15:07:58,375 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-15 15:07:58,396 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-15 15:07:58,396 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-15 15:07:58,398 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-15 15:07:58,399 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-15 15:07:58,401 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-15 15:07:58,404 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-15 15:07:58,410 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-15 15:07:58,411 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-15 15:07:58,414 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-15 15:07:58,415 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-15 15:07:58,419 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-15 15:07:58,420 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-15 15:07:58,421 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-15 15:07:58,422 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-15 15:07:58,424 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-15 15:07:58,430 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-15 15:07:58,431 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-15 15:07:58,432 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-15 15:07:58,433 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-15 15:07:58,436 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-15 15:07:58,443 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 15:07:58,452 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-15 15:07:58,452 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-15 15:07:58,453 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-15 15:07:58,453 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-15 15:07:58,453 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-15 15:07:58,453 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-15 15:07:58,454 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-15 15:07:58,454 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-15 15:07:58,454 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-15 15:07:58,455 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-15 15:07:58,455 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-15 15:07:58,455 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-15 15:07:58,455 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-15 15:07:58,456 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-15 15:07:58,456 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-15 15:07:58,515 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-15 15:07:58,533 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-15 15:07:58,540 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-15 15:07:58,541 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-15 15:07:58,542 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-15 15:07:58,542 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl [2018-10-15 15:07:58,543 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl' [2018-10-15 15:07:58,637 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-15 15:07:58,639 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-15 15:07:58,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-15 15:07:58,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-15 15:07:58,640 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-15 15:07:58,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:07:58" (1/1) ... [2018-10-15 15:07:58,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:07:58" (1/1) ... [2018-10-15 15:07:58,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:07:58" (1/1) ... [2018-10-15 15:07:58,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:07:58" (1/1) ... [2018-10-15 15:07:58,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:07:58" (1/1) ... [2018-10-15 15:07:58,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:07:58" (1/1) ... [2018-10-15 15:07:58,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:07:58" (1/1) ... [2018-10-15 15:07:58,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-15 15:07:58,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-15 15:07:58,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-15 15:07:58,704 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-15 15:07:58,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:07:58" (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 15:07:58,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-15 15:07:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-15 15:07:59,710 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-15 15:07:59,710 INFO L202 PluginConnector]: Adding new model pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:07:59 BoogieIcfgContainer [2018-10-15 15:07:59,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-15 15:07:59,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-15 15:07:59,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-15 15:07:59,715 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-15 15:07:59,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.10 03:07:58" (1/2) ... [2018-10-15 15:07:59,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7c440d and model type pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:07:59, skipping insertion in model container [2018-10-15 15:07:59,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:07:59" (2/2) ... [2018-10-15 15:07:59,718 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl [2018-10-15 15:07:59,728 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-15 15:07:59,737 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-15 15:07:59,754 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-15 15:07:59,782 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-15 15:07:59,783 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-15 15:07:59,783 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-15 15:07:59,783 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-15 15:07:59,783 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-15 15:07:59,784 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-15 15:07:59,784 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-15 15:07:59,784 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-15 15:07:59,784 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-15 15:07:59,807 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-10-15 15:07:59,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-10-15 15:07:59,824 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:07:59,825 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 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, 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, 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 15:07:59,826 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:07:59,832 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:07:59,832 INFO L82 PathProgramCache]: Analyzing trace with hash 791000705, now seen corresponding path program 1 times [2018-10-15 15:07:59,891 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:07:59,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:08:00,229 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 15:08:00,232 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 15:08:00,232 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-15 15:08:00,238 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-15 15:08:00,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-15 15:08:00,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-15 15:08:00,258 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 3 states. [2018-10-15 15:08:00,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:08:00,377 INFO L93 Difference]: Finished difference Result 224 states and 233 transitions. [2018-10-15 15:08:00,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-15 15:08:00,379 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2018-10-15 15:08:00,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:08:00,395 INFO L225 Difference]: With dead ends: 224 [2018-10-15 15:08:00,395 INFO L226 Difference]: Without dead ends: 224 [2018-10-15 15:08:00,398 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-15 15:08:00,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2018-10-15 15:08:00,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 221. [2018-10-15 15:08:00,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2018-10-15 15:08:00,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 231 transitions. [2018-10-15 15:08:00,464 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 231 transitions. Word has length 144 [2018-10-15 15:08:00,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:08:00,465 INFO L481 AbstractCegarLoop]: Abstraction has 221 states and 231 transitions. [2018-10-15 15:08:00,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-15 15:08:00,466 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 231 transitions. [2018-10-15 15:08:00,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-10-15 15:08:00,476 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:08:00,476 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 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, 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, 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 15:08:00,477 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:08:00,477 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:08:00,477 INFO L82 PathProgramCache]: Analyzing trace with hash 2075094758, now seen corresponding path program 1 times [2018-10-15 15:08:00,479 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:08:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:08:00,689 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 15:08:00,690 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 15:08:00,690 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-15 15:08:00,692 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-15 15:08:00,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-15 15:08:00,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-15 15:08:00,694 INFO L87 Difference]: Start difference. First operand 221 states and 231 transitions. Second operand 3 states. [2018-10-15 15:08:00,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:08:00,745 INFO L93 Difference]: Finished difference Result 331 states and 349 transitions. [2018-10-15 15:08:00,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-15 15:08:00,749 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2018-10-15 15:08:00,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:08:00,759 INFO L225 Difference]: With dead ends: 331 [2018-10-15 15:08:00,759 INFO L226 Difference]: Without dead ends: 331 [2018-10-15 15:08:00,763 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-15 15:08:00,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2018-10-15 15:08:00,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 328. [2018-10-15 15:08:00,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2018-10-15 15:08:00,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 347 transitions. [2018-10-15 15:08:00,804 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 347 transitions. Word has length 145 [2018-10-15 15:08:00,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:08:00,805 INFO L481 AbstractCegarLoop]: Abstraction has 328 states and 347 transitions. [2018-10-15 15:08:00,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-15 15:08:00,807 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 347 transitions. [2018-10-15 15:08:00,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-10-15 15:08:00,810 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:08:00,810 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 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, 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, 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 15:08:00,810 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:08:00,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:08:00,811 INFO L82 PathProgramCache]: Analyzing trace with hash 51918470, now seen corresponding path program 1 times [2018-10-15 15:08:00,813 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:08:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:08:01,101 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 15:08:01,102 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 15:08:01,102 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-15 15:08:01,103 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-15 15:08:01,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-15 15:08:01,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-15 15:08:01,104 INFO L87 Difference]: Start difference. First operand 328 states and 347 transitions. Second operand 3 states. [2018-10-15 15:08:01,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:08:01,164 INFO L93 Difference]: Finished difference Result 539 states and 569 transitions. [2018-10-15 15:08:01,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-15 15:08:01,164 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2018-10-15 15:08:01,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:08:01,170 INFO L225 Difference]: With dead ends: 539 [2018-10-15 15:08:01,170 INFO L226 Difference]: Without dead ends: 539 [2018-10-15 15:08:01,170 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-15 15:08:01,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2018-10-15 15:08:01,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 532. [2018-10-15 15:08:01,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2018-10-15 15:08:01,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 563 transitions. [2018-10-15 15:08:01,212 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 563 transitions. Word has length 146 [2018-10-15 15:08:01,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:08:01,213 INFO L481 AbstractCegarLoop]: Abstraction has 532 states and 563 transitions. [2018-10-15 15:08:01,213 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-15 15:08:01,214 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 563 transitions. [2018-10-15 15:08:01,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-10-15 15:08:01,219 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:08:01,219 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 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, 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, 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 15:08:01,219 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:08:01,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:08:01,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1276851930, now seen corresponding path program 1 times [2018-10-15 15:08:01,225 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:08:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:08:01,320 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 15:08:01,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 15:08:01,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-15 15:08:01,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-15 15:08:01,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-15 15:08:01,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-15 15:08:01,322 INFO L87 Difference]: Start difference. First operand 532 states and 563 transitions. Second operand 3 states. [2018-10-15 15:08:01,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:08:01,370 INFO L93 Difference]: Finished difference Result 733 states and 779 transitions. [2018-10-15 15:08:01,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-15 15:08:01,371 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2018-10-15 15:08:01,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:08:01,374 INFO L225 Difference]: With dead ends: 733 [2018-10-15 15:08:01,375 INFO L226 Difference]: Without dead ends: 733 [2018-10-15 15:08:01,375 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-15 15:08:01,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2018-10-15 15:08:01,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 730. [2018-10-15 15:08:01,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 730 states. [2018-10-15 15:08:01,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 777 transitions. [2018-10-15 15:08:01,395 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 777 transitions. Word has length 146 [2018-10-15 15:08:01,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:08:01,396 INFO L481 AbstractCegarLoop]: Abstraction has 730 states and 777 transitions. [2018-10-15 15:08:01,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-15 15:08:01,396 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 777 transitions. [2018-10-15 15:08:01,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-10-15 15:08:01,398 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:08:01,398 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 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, 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, 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 15:08:01,398 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:08:01,399 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:08:01,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1283284624, now seen corresponding path program 1 times [2018-10-15 15:08:01,400 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:08:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:08:01,580 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 15:08:01,581 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 15:08:01,581 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-15 15:08:01,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-15 15:08:01,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-15 15:08:01,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-15 15:08:01,583 INFO L87 Difference]: Start difference. First operand 730 states and 777 transitions. Second operand 8 states. [2018-10-15 15:08:01,886 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-15 15:08:02,219 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-15 15:08:02,418 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-15 15:08:02,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:08:02,815 INFO L93 Difference]: Finished difference Result 1310 states and 1381 transitions. [2018-10-15 15:08:02,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-15 15:08:02,816 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 147 [2018-10-15 15:08:02,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:08:02,824 INFO L225 Difference]: With dead ends: 1310 [2018-10-15 15:08:02,824 INFO L226 Difference]: Without dead ends: 1310 [2018-10-15 15:08:02,825 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2018-10-15 15:08:02,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2018-10-15 15:08:02,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 802. [2018-10-15 15:08:02,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 802 states. [2018-10-15 15:08:02,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 845 transitions. [2018-10-15 15:08:02,855 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 845 transitions. Word has length 147 [2018-10-15 15:08:02,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:08:02,856 INFO L481 AbstractCegarLoop]: Abstraction has 802 states and 845 transitions. [2018-10-15 15:08:02,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-15 15:08:02,856 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 845 transitions. [2018-10-15 15:08:02,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-10-15 15:08:02,860 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:08:02,861 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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 15:08:02,861 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:08:02,861 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:08:02,862 INFO L82 PathProgramCache]: Analyzing trace with hash 959085134, now seen corresponding path program 1 times [2018-10-15 15:08:02,864 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:08:02,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:08:03,357 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-15 15:08:03,687 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 21 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 15:08:03,687 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-15 15:08:03,688 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-10-15 15:08:03,688 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-15 15:08:03,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-15 15:08:03,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-10-15 15:08:03,689 INFO L87 Difference]: Start difference. First operand 802 states and 845 transitions. Second operand 10 states. [2018-10-15 15:08:04,654 WARN L179 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 19 [2018-10-15 15:08:04,979 WARN L179 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2018-10-15 15:08:05,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:08:05,389 INFO L93 Difference]: Finished difference Result 744 states and 775 transitions. [2018-10-15 15:08:05,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-15 15:08:05,390 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 197 [2018-10-15 15:08:05,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:08:05,395 INFO L225 Difference]: With dead ends: 744 [2018-10-15 15:08:05,395 INFO L226 Difference]: Without dead ends: 726 [2018-10-15 15:08:05,396 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2018-10-15 15:08:05,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2018-10-15 15:08:05,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 503. [2018-10-15 15:08:05,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2018-10-15 15:08:05,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 524 transitions. [2018-10-15 15:08:05,408 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 524 transitions. Word has length 197 [2018-10-15 15:08:05,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:08:05,408 INFO L481 AbstractCegarLoop]: Abstraction has 503 states and 524 transitions. [2018-10-15 15:08:05,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-15 15:08:05,409 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 524 transitions. [2018-10-15 15:08:05,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-10-15 15:08:05,411 INFO L367 BasicCegarLoop]: Found error trace [2018-10-15 15:08:05,412 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-15 15:08:05,412 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-15 15:08:05,412 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-15 15:08:05,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1846004288, now seen corresponding path program 1 times [2018-10-15 15:08:05,414 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-15 15:08:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-15 15:08:05,580 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-15 15:08:05,580 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-15 15:08:05,580 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-15 15:08:05,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-15 15:08:05,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-15 15:08:05,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-15 15:08:05,582 INFO L87 Difference]: Start difference. First operand 503 states and 524 transitions. Second operand 3 states. [2018-10-15 15:08:05,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-15 15:08:05,639 INFO L93 Difference]: Finished difference Result 203 states and 202 transitions. [2018-10-15 15:08:05,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-15 15:08:05,639 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2018-10-15 15:08:05,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-15 15:08:05,640 INFO L225 Difference]: With dead ends: 203 [2018-10-15 15:08:05,640 INFO L226 Difference]: Without dead ends: 0 [2018-10-15 15:08:05,641 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-15 15:08:05,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-15 15:08:05,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-15 15:08:05,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-15 15:08:05,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-15 15:08:05,642 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 198 [2018-10-15 15:08:05,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-15 15:08:05,642 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-15 15:08:05,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-15 15:08:05,642 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-15 15:08:05,642 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-15 15:08:05,648 INFO L202 PluginConnector]: Adding new model pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:08:05 BoogieIcfgContainer [2018-10-15 15:08:05,648 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-15 15:08:05,649 INFO L168 Benchmark]: Toolchain (without parser) took 7011.57 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 39.8 MB). Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 82.0 MB). Peak memory consumption was 121.8 MB. Max. memory is 7.1 GB. [2018-10-15 15:08:05,650 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-15 15:08:05,651 INFO L168 Benchmark]: Boogie Preprocessor took 60.39 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 15:08:05,652 INFO L168 Benchmark]: RCFGBuilder took 1007.35 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-15 15:08:05,653 INFO L168 Benchmark]: TraceAbstraction took 5936.46 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 39.8 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 50.3 MB). Peak memory consumption was 90.1 MB. Max. memory is 7.1 GB. [2018-10-15 15:08:05,657 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.39 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 1007.35 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5936.46 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 39.8 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 50.3 MB). Peak memory consumption was 90.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 299]: 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, 165 locations, 1 error locations. SAFE Result, 5.8s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 3.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1388 SDtfs, 1155 SDslu, 2443 SDs, 0 SdLazy, 335 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=802occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 747 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1123 NumberOfCodeBlocks, 1123 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1116 ConstructedInterpolants, 0 QuantifiedInterpolants, 818780 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 61/75 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-15_15-08-05-668.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c_13.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-15_15-08-05-668.csv Received shutdown request...