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/20181010-MemSafetyPathprograms/alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:26:17,264 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:26:17,266 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:26:17,282 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:26:17,282 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:26:17,283 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:26:17,285 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:26:17,286 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:26:17,288 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:26:17,291 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:26:17,292 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-10 15:26:17,314 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-10 15:26:17,325 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:26:17,325 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:26:17,326 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:26:17,326 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:26:17,326 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:26:17,326 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:26:17,330 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:26:17,330 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:26:17,330 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:26:17,331 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:26:17,331 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:26:17,331 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:26:17,331 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:26:17,332 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:26:17,332 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:26:17,388 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:26:17,402 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:26:17,407 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:26:17,409 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:26:17,410 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:26:17,410 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl [2018-10-10 15:26:17,411 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl' [2018-10-10 15:26:17,489 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:26:17,490 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:26:17,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:26:17,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:26:17,491 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:26:17,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:26:17" (1/1) ... [2018-10-10 15:26:17,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:26:17" (1/1) ... [2018-10-10 15:26:17,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:26:17" (1/1) ... [2018-10-10 15:26:17,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:26:17" (1/1) ... [2018-10-10 15:26:17,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:26:17" (1/1) ... [2018-10-10 15:26:17,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:26:17" (1/1) ... [2018-10-10 15:26:17,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:26:17" (1/1) ... [2018-10-10 15:26:17,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:26:17,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:26:17,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:26:17,576 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:26:17,577 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:26:17" (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 [2018-10-10 15:26:17,642 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:26:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:26:17,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:26:18,501 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:26:18,502 INFO L202 PluginConnector]: Adding new model alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:26:18 BoogieIcfgContainer [2018-10-10 15:26:18,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:26:18,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:26:18,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:26:18,508 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:26:18,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:26:17" (1/2) ... [2018-10-10 15:26:18,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5de09e5a and model type alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:26:18, skipping insertion in model container [2018-10-10 15:26:18,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:26:18" (2/2) ... [2018-10-10 15:26:18,512 INFO L112 eAbstractionObserver]: Analyzing ICFG alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl [2018-10-10 15:26:18,523 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:26:18,534 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:26:18,551 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:26:18,587 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:26:18,588 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:26:18,588 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:26:18,588 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:26:18,588 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:26:18,588 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:26:18,589 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:26:18,589 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:26:18,589 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:26:18,619 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states. [2018-10-10 15:26:18,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-10-10 15:26:18,646 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:26:18,647 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] [2018-10-10 15:26:18,648 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:26:18,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:26:18,657 INFO L82 PathProgramCache]: Analyzing trace with hash -165905117, now seen corresponding path program 1 times [2018-10-10 15:26:18,716 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:26:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:26:19,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:26:19,409 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:26:19,409 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-10-10 15:26:19,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-10 15:26:19,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-10 15:26:19,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-10-10 15:26:19,434 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 11 states. [2018-10-10 15:26:20,204 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 18 [2018-10-10 15:26:21,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:26:21,374 INFO L93 Difference]: Finished difference Result 180 states and 182 transitions. [2018-10-10 15:26:21,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-10 15:26:21,376 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 63 [2018-10-10 15:26:21,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:26:21,390 INFO L225 Difference]: With dead ends: 180 [2018-10-10 15:26:21,390 INFO L226 Difference]: Without dead ends: 140 [2018-10-10 15:26:21,393 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2018-10-10 15:26:21,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-10-10 15:26:21,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 116. [2018-10-10 15:26:21,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-10-10 15:26:21,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 117 transitions. [2018-10-10 15:26:21,440 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 117 transitions. Word has length 63 [2018-10-10 15:26:21,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:26:21,441 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 117 transitions. [2018-10-10 15:26:21,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-10 15:26:21,441 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 117 transitions. [2018-10-10 15:26:21,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-10-10 15:26:21,446 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:26:21,446 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:26:21,447 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:26:21,447 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:26:21,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1938485649, now seen corresponding path program 1 times [2018-10-10 15:26:21,448 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:26:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:26:21,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:26:21,527 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:26:21,527 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-10 15:26:21,530 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-10 15:26:21,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-10 15:26:21,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-10 15:26:21,531 INFO L87 Difference]: Start difference. First operand 116 states and 117 transitions. Second operand 3 states. [2018-10-10 15:26:21,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:26:21,599 INFO L93 Difference]: Finished difference Result 170 states and 172 transitions. [2018-10-10 15:26:21,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-10 15:26:21,601 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2018-10-10 15:26:21,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:26:21,603 INFO L225 Difference]: With dead ends: 170 [2018-10-10 15:26:21,603 INFO L226 Difference]: Without dead ends: 170 [2018-10-10 15:26:21,604 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 [2018-10-10 15:26:21,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-10-10 15:26:21,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 150. [2018-10-10 15:26:21,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-10-10 15:26:21,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 152 transitions. [2018-10-10 15:26:21,619 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 152 transitions. Word has length 106 [2018-10-10 15:26:21,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:26:21,620 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 152 transitions. [2018-10-10 15:26:21,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-10 15:26:21,620 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 152 transitions. [2018-10-10 15:26:21,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-10-10 15:26:21,622 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:26:21,623 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:26:21,623 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:26:21,623 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:26:21,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1932400305, now seen corresponding path program 1 times [2018-10-10 15:26:21,625 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:26:21,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:26:22,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:26:22,589 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:26:22,589 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-10-10 15:26:22,590 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-10-10 15:26:22,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-10-10 15:26:22,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=636, Unknown=0, NotChecked=0, Total=702 [2018-10-10 15:26:22,591 INFO L87 Difference]: Start difference. First operand 150 states and 152 transitions. Second operand 27 states. [2018-10-10 15:26:23,972 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2018-10-10 15:26:24,415 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2018-10-10 15:26:27,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:26:27,182 INFO L93 Difference]: Finished difference Result 323 states and 329 transitions. [2018-10-10 15:26:27,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-10-10 15:26:27,183 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 106 [2018-10-10 15:26:27,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:26:27,187 INFO L225 Difference]: With dead ends: 323 [2018-10-10 15:26:27,187 INFO L226 Difference]: Without dead ends: 303 [2018-10-10 15:26:27,189 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=465, Invalid=2957, Unknown=0, NotChecked=0, Total=3422 [2018-10-10 15:26:27,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2018-10-10 15:26:27,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 193. [2018-10-10 15:26:27,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2018-10-10 15:26:27,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 195 transitions. [2018-10-10 15:26:27,204 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 195 transitions. Word has length 106 [2018-10-10 15:26:27,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:26:27,204 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 195 transitions. [2018-10-10 15:26:27,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-10-10 15:26:27,204 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 195 transitions. [2018-10-10 15:26:27,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-10-10 15:26:27,207 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:26:27,208 INFO L375 BasicCegarLoop]: trace histogram [3, 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] [2018-10-10 15:26:27,208 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:26:27,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:26:27,209 INFO L82 PathProgramCache]: Analyzing trace with hash -206160189, now seen corresponding path program 1 times [2018-10-10 15:26:27,211 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:26:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:26:29,224 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:26:29,225 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:26:29,225 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2018-10-10 15:26:29,226 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-10-10 15:26:29,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-10-10 15:26:29,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1672, Unknown=0, NotChecked=0, Total=1806 [2018-10-10 15:26:29,227 INFO L87 Difference]: Start difference. First operand 193 states and 195 transitions. Second operand 43 states. [2018-10-10 15:26:30,844 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2018-10-10 15:26:31,087 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2018-10-10 15:26:31,254 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2018-10-10 15:26:31,504 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2018-10-10 15:26:31,702 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2018-10-10 15:26:35,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:26:35,274 INFO L93 Difference]: Finished difference Result 409 states and 417 transitions. [2018-10-10 15:26:35,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-10-10 15:26:35,275 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 149 [2018-10-10 15:26:35,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:26:35,279 INFO L225 Difference]: With dead ends: 409 [2018-10-10 15:26:35,279 INFO L226 Difference]: Without dead ends: 389 [2018-10-10 15:26:35,283 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1547 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1033, Invalid=7339, Unknown=0, NotChecked=0, Total=8372 [2018-10-10 15:26:35,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2018-10-10 15:26:35,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 277. [2018-10-10 15:26:35,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2018-10-10 15:26:35,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 280 transitions. [2018-10-10 15:26:35,300 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 280 transitions. Word has length 149 [2018-10-10 15:26:35,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:26:35,301 INFO L481 AbstractCegarLoop]: Abstraction has 277 states and 280 transitions. [2018-10-10 15:26:35,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-10-10 15:26:35,301 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 280 transitions. [2018-10-10 15:26:35,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-10-10 15:26:35,305 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:26:35,306 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-10 15:26:35,306 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:26:35,306 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:26:35,307 INFO L82 PathProgramCache]: Analyzing trace with hash 2026595247, now seen corresponding path program 2 times [2018-10-10 15:26:35,308 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:26:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:26:36,255 WARN L178 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 12 [2018-10-10 15:26:36,541 WARN L178 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2018-10-10 15:26:37,519 WARN L178 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2018-10-10 15:26:37,825 WARN L178 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2018-10-10 15:26:38,157 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2018-10-10 15:26:38,378 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 45 [2018-10-10 15:26:39,056 WARN L178 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 40 [2018-10-10 15:26:39,808 WARN L178 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 46 [2018-10-10 15:26:40,045 WARN L178 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 38 [2018-10-10 15:26:40,740 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 37 [2018-10-10 15:26:41,002 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 46 [2018-10-10 15:26:41,176 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 38 [2018-10-10 15:26:41,930 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-10 15:26:44,281 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:26:44,282 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:26:44,282 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [66] total 66 [2018-10-10 15:26:44,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 66 states [2018-10-10 15:26:44,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2018-10-10 15:26:44,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=4055, Unknown=0, NotChecked=0, Total=4290 [2018-10-10 15:26:44,284 INFO L87 Difference]: Start difference. First operand 277 states and 280 transitions. Second operand 66 states. [2018-10-10 15:26:46,086 WARN L178 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 56 [2018-10-10 15:26:46,458 WARN L178 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 62 [2018-10-10 15:26:46,733 WARN L178 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 52 [2018-10-10 15:26:47,321 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 55 [2018-10-10 15:26:47,493 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 57 [2018-10-10 15:26:47,742 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2018-10-10 15:26:48,248 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2018-10-10 15:26:48,676 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2018-10-10 15:26:49,020 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2018-10-10 15:26:49,493 WARN L178 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2018-10-10 15:26:49,828 WARN L178 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 91 [2018-10-10 15:26:50,276 WARN L178 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 94 [2018-10-10 15:26:50,599 WARN L178 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2018-10-10 15:26:51,202 WARN L178 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 61 [2018-10-10 15:26:51,531 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 65 [2018-10-10 15:26:52,021 WARN L178 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 67 [2018-10-10 15:26:52,254 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 60 [2018-10-10 15:26:52,614 WARN L178 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 69 [2018-10-10 15:26:52,944 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 62 [2018-10-10 15:26:53,876 WARN L178 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 40 [2018-10-10 15:26:54,219 WARN L178 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 43 [2018-10-10 15:26:54,584 WARN L178 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 47 [2018-10-10 15:26:54,902 WARN L178 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 48 [2018-10-10 15:26:55,428 WARN L178 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 51 [2018-10-10 15:26:55,694 WARN L178 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 41 [2018-10-10 15:26:55,972 WARN L178 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 41 [2018-10-10 15:26:56,584 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 44 [2018-10-10 15:26:57,328 WARN L178 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 51 [2018-10-10 15:26:57,780 WARN L178 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 53 [2018-10-10 15:26:58,388 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 40 [2018-10-10 15:26:58,776 WARN L178 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 56 [2018-10-10 15:26:59,360 WARN L178 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 59 [2018-10-10 15:26:59,909 WARN L178 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 62 [2018-10-10 15:27:00,582 WARN L178 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 73 [2018-10-10 15:27:00,768 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2018-10-10 15:27:01,433 WARN L178 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 78 [2018-10-10 15:27:01,653 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 65 [2018-10-10 15:27:02,135 WARN L178 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 84 [2018-10-10 15:27:02,342 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 71 [2018-10-10 15:27:02,947 WARN L178 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 87 [2018-10-10 15:27:03,160 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 74 [2018-10-10 15:27:03,622 WARN L178 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 90 [2018-10-10 15:27:03,845 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 77 [2018-10-10 15:27:04,196 WARN L178 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 68 [2018-10-10 15:27:04,645 WARN L178 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 65 [2018-10-10 15:27:05,143 WARN L178 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 68 [2018-10-10 15:27:06,211 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 48 [2018-10-10 15:27:06,512 WARN L178 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 52 [2018-10-10 15:27:08,152 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2018-10-10 15:27:08,346 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 72 [2018-10-10 15:27:08,563 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 75 [2018-10-10 15:27:08,769 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 78 [2018-10-10 15:27:09,385 WARN L178 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 70 [2018-10-10 15:27:10,744 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 65 [2018-10-10 15:27:11,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:27:11,914 INFO L93 Difference]: Finished difference Result 291 states and 295 transitions. [2018-10-10 15:27:11,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2018-10-10 15:27:11,915 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 192 [2018-10-10 15:27:11,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:27:11,916 INFO L225 Difference]: With dead ends: 291 [2018-10-10 15:27:11,916 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:27:11,922 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6518 ImplicationChecksByTransitivity, 30.3s TimeCoverageRelationStatistics Valid=3751, Invalid=22981, Unknown=0, NotChecked=0, Total=26732 [2018-10-10 15:27:11,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:27:11,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:27:11,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:27:11,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:27:11,923 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 192 [2018-10-10 15:27:11,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:27:11,923 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:27:11,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 66 states. [2018-10-10 15:27:11,923 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:27:11,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:27:11,929 INFO L202 PluginConnector]: Adding new model alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:27:11 BoogieIcfgContainer [2018-10-10 15:27:11,929 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:27:11,930 INFO L168 Benchmark]: Toolchain (without parser) took 54440.65 ms. Allocated memory was 1.5 GB in the beginning and 2.0 GB in the end (delta: 498.6 MB). Free memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: -476.0 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2018-10-10 15:27:11,931 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. [2018-10-10 15:27:11,932 INFO L168 Benchmark]: Boogie Preprocessor took 83.63 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. [2018-10-10 15:27:11,933 INFO L168 Benchmark]: RCFGBuilder took 927.20 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. [2018-10-10 15:27:11,933 INFO L168 Benchmark]: TraceAbstraction took 53425.31 ms. Allocated memory was 1.5 GB in the beginning and 2.0 GB in the end (delta: 498.6 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -507.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:27:11,937 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 83.63 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 927.20 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 53425.31 ms. Allocated memory was 1.5 GB in the beginning and 2.0 GB in the end (delta: 498.6 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -507.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 152]: 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, 116 locations, 1 error locations. SAFE Result, 53.3s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 40.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 458 SDtfs, 6610 SDslu, 5416 SDs, 0 SdLazy, 9122 SolverSat, 725 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 352 GetRequests, 18 SyntacticMatches, 4 SemanticMatches, 330 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8636 ImplicationChecksByTransitivity, 39.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=277occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 266 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 12.0s InterpolantComputationTime, 616 NumberOfCodeBlocks, 616 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 611 ConstructedInterpolants, 0 QuantifiedInterpolants, 1385448 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 2/159 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/alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-27-11-948.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/alternating_list_true-unreach-call_true-valid-memsafety.i_35.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-27-11-948.csv Received shutdown request...