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/dll_extends_pointer_true-valid-memsafety.i_38.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:35:57,866 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:35:57,868 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:35:57,886 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:35:57,886 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:35:57,887 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:35:57,889 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:35:57,892 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:35:57,894 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:35:57,900 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:35:57,901 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-10 15:35:57,931 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 15:35:57,940 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:35:57,941 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:35:57,941 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:35:57,942 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:35:57,942 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:35:57,942 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:35:57,943 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:35:57,943 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:35:57,943 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:35:57,943 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:35:57,944 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:35:57,944 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:35:57,944 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:35:57,945 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:35:57,945 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:35:58,003 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:35:58,019 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:35:58,022 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:35:58,024 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:35:58,025 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:35:58,026 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/dll_extends_pointer_true-valid-memsafety.i_38.bpl [2018-10-10 15:35:58,026 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/dll_extends_pointer_true-valid-memsafety.i_38.bpl' [2018-10-10 15:35:58,124 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:35:58,126 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:35:58,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:35:58,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:35:58,127 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:35:58,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_38.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:35:58" (1/1) ... [2018-10-10 15:35:58,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_38.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:35:58" (1/1) ... [2018-10-10 15:35:58,174 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_38.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:35:58" (1/1) ... [2018-10-10 15:35:58,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_38.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:35:58" (1/1) ... [2018-10-10 15:35:58,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_38.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:35:58" (1/1) ... [2018-10-10 15:35:58,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_38.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:35:58" (1/1) ... [2018-10-10 15:35:58,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_38.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:35:58" (1/1) ... [2018-10-10 15:35:58,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:35:58,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:35:58,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:35:58,202 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:35:58,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dll_extends_pointer_true-valid-memsafety.i_38.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:35:58" (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 [2018-10-10 15:35:58,271 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:35:58,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:35:58,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:35:59,208 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:35:59,209 INFO L202 PluginConnector]: Adding new model dll_extends_pointer_true-valid-memsafety.i_38.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:35:59 BoogieIcfgContainer [2018-10-10 15:35:59,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:35:59,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:35:59,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:35:59,214 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:35:59,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dll_extends_pointer_true-valid-memsafety.i_38.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:35:58" (1/2) ... [2018-10-10 15:35:59,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ee710 and model type dll_extends_pointer_true-valid-memsafety.i_38.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:35:59, skipping insertion in model container [2018-10-10 15:35:59,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dll_extends_pointer_true-valid-memsafety.i_38.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:35:59" (2/2) ... [2018-10-10 15:35:59,217 INFO L112 eAbstractionObserver]: Analyzing ICFG dll_extends_pointer_true-valid-memsafety.i_38.bpl [2018-10-10 15:35:59,227 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:35:59,236 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:35:59,253 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:35:59,282 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:35:59,283 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:35:59,283 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:35:59,284 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:35:59,284 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:35:59,284 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:35:59,284 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:35:59,284 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:35:59,284 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:35:59,306 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states. [2018-10-10 15:35:59,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-10-10 15:35:59,319 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:35:59,320 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] [2018-10-10 15:35:59,322 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:35:59,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:35:59,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1188466957, now seen corresponding path program 1 times [2018-10-10 15:35:59,392 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:35:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:00,046 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 17 [2018-10-10 15:36:00,637 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 12 [2018-10-10 15:36:00,677 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 15:36:00,680 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:36:00,681 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-10-10 15:36:00,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-10 15:36:00,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-10 15:36:00,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2018-10-10 15:36:00,706 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 11 states. [2018-10-10 15:36:01,805 WARN L178 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-10-10 15:36:02,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:02,380 INFO L93 Difference]: Finished difference Result 180 states and 182 transitions. [2018-10-10 15:36:02,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-10 15:36:02,387 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 78 [2018-10-10 15:36:02,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:02,403 INFO L225 Difference]: With dead ends: 180 [2018-10-10 15:36:02,403 INFO L226 Difference]: Without dead ends: 180 [2018-10-10 15:36:02,405 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=150, Invalid=402, Unknown=0, NotChecked=0, Total=552 [2018-10-10 15:36:02,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2018-10-10 15:36:02,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 150. [2018-10-10 15:36:02,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-10-10 15:36:02,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 152 transitions. [2018-10-10 15:36:02,469 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 152 transitions. Word has length 78 [2018-10-10 15:36:02,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:02,470 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 152 transitions. [2018-10-10 15:36:02,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-10 15:36:02,471 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 152 transitions. [2018-10-10 15:36:02,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-10-10 15:36:02,481 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:02,482 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:36:02,482 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:02,483 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:02,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1358992833, now seen corresponding path program 1 times [2018-10-10 15:36:02,485 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:03,231 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:36:03,231 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:36:03,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-10-10 15:36:03,234 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-10 15:36:03,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-10 15:36:03,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2018-10-10 15:36:03,236 INFO L87 Difference]: Start difference. First operand 150 states and 152 transitions. Second operand 14 states. [2018-10-10 15:36:04,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:04,557 INFO L93 Difference]: Finished difference Result 179 states and 180 transitions. [2018-10-10 15:36:04,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-10-10 15:36:04,559 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 106 [2018-10-10 15:36:04,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:04,561 INFO L225 Difference]: With dead ends: 179 [2018-10-10 15:36:04,561 INFO L226 Difference]: Without dead ends: 149 [2018-10-10 15:36:04,563 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=229, Invalid=893, Unknown=0, NotChecked=0, Total=1122 [2018-10-10 15:36:04,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-10-10 15:36:04,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 128. [2018-10-10 15:36:04,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-10-10 15:36:04,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 129 transitions. [2018-10-10 15:36:04,574 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 129 transitions. Word has length 106 [2018-10-10 15:36:04,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:04,575 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 129 transitions. [2018-10-10 15:36:04,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-10 15:36:04,575 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 129 transitions. [2018-10-10 15:36:04,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-10-10 15:36:04,577 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:04,578 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:36:04,578 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:04,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:04,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1143235208, now seen corresponding path program 1 times [2018-10-10 15:36:04,580 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:05,373 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 15:36:05,374 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:36:05,374 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-10 15:36:05,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-10 15:36:05,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-10 15:36:05,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2018-10-10 15:36:05,376 INFO L87 Difference]: Start difference. First operand 128 states and 129 transitions. Second operand 13 states. [2018-10-10 15:36:07,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:07,295 INFO L93 Difference]: Finished difference Result 169 states and 170 transitions. [2018-10-10 15:36:07,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-10 15:36:07,296 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 120 [2018-10-10 15:36:07,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:07,299 INFO L225 Difference]: With dead ends: 169 [2018-10-10 15:36:07,299 INFO L226 Difference]: Without dead ends: 169 [2018-10-10 15:36:07,300 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=261, Invalid=731, Unknown=0, NotChecked=0, Total=992 [2018-10-10 15:36:07,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2018-10-10 15:36:07,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 149. [2018-10-10 15:36:07,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-10-10 15:36:07,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 150 transitions. [2018-10-10 15:36:07,309 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 150 transitions. Word has length 120 [2018-10-10 15:36:07,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:07,310 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 150 transitions. [2018-10-10 15:36:07,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-10 15:36:07,310 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 150 transitions. [2018-10-10 15:36:07,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-10-10 15:36:07,313 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:07,313 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:36:07,314 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:07,314 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:07,314 INFO L82 PathProgramCache]: Analyzing trace with hash 105085638, now seen corresponding path program 1 times [2018-10-10 15:36:07,315 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:09,725 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:36:09,726 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:36:09,726 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-10-10 15:36:09,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-10-10 15:36:09,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-10-10 15:36:09,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=1033, Unknown=0, NotChecked=0, Total=1122 [2018-10-10 15:36:09,728 INFO L87 Difference]: Start difference. First operand 149 states and 150 transitions. Second operand 34 states. [2018-10-10 15:36:13,360 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2018-10-10 15:36:13,772 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2018-10-10 15:36:14,017 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 69 [2018-10-10 15:36:14,370 WARN L178 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 72 [2018-10-10 15:36:14,637 WARN L178 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 73 [2018-10-10 15:36:14,990 WARN L178 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2018-10-10 15:36:15,148 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2018-10-10 15:36:15,329 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2018-10-10 15:36:15,561 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2018-10-10 15:36:15,782 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 69 [2018-10-10 15:36:16,110 WARN L178 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 82 [2018-10-10 15:36:16,500 WARN L178 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 94 [2018-10-10 15:36:16,733 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 74 [2018-10-10 15:36:17,030 WARN L178 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 94 [2018-10-10 15:36:17,337 WARN L178 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2018-10-10 15:36:17,708 WARN L178 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2018-10-10 15:36:17,918 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2018-10-10 15:36:18,140 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2018-10-10 15:36:18,499 WARN L178 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 75 [2018-10-10 15:36:18,742 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2018-10-10 15:36:18,996 WARN L178 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2018-10-10 15:36:19,254 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2018-10-10 15:36:20,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:20,066 INFO L93 Difference]: Finished difference Result 205 states and 206 transitions. [2018-10-10 15:36:20,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-10-10 15:36:20,069 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 148 [2018-10-10 15:36:20,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:20,072 INFO L225 Difference]: With dead ends: 205 [2018-10-10 15:36:20,072 INFO L226 Difference]: Without dead ends: 205 [2018-10-10 15:36:20,076 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1804 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=887, Invalid=6769, Unknown=0, NotChecked=0, Total=7656 [2018-10-10 15:36:20,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2018-10-10 15:36:20,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 177. [2018-10-10 15:36:20,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-10-10 15:36:20,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 178 transitions. [2018-10-10 15:36:20,089 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 178 transitions. Word has length 148 [2018-10-10 15:36:20,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:20,089 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 178 transitions. [2018-10-10 15:36:20,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-10-10 15:36:20,090 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 178 transitions. [2018-10-10 15:36:20,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-10-10 15:36:20,093 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:20,093 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:36:20,093 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:20,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:20,096 INFO L82 PathProgramCache]: Analyzing trace with hash -825919724, now seen corresponding path program 2 times [2018-10-10 15:36:20,097 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:20,769 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 9 [2018-10-10 15:36:22,120 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 40 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:36:22,120 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:36:22,121 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-10-10 15:36:22,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-10-10 15:36:22,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-10-10 15:36:22,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1039, Unknown=0, NotChecked=0, Total=1122 [2018-10-10 15:36:22,122 INFO L87 Difference]: Start difference. First operand 177 states and 178 transitions. Second operand 34 states. [2018-10-10 15:36:24,261 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2018-10-10 15:36:24,537 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2018-10-10 15:36:24,943 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2018-10-10 15:36:25,206 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2018-10-10 15:36:25,374 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2018-10-10 15:36:29,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:29,062 INFO L93 Difference]: Finished difference Result 296 states and 297 transitions. [2018-10-10 15:36:29,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2018-10-10 15:36:29,067 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 176 [2018-10-10 15:36:29,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:29,068 INFO L225 Difference]: With dead ends: 296 [2018-10-10 15:36:29,068 INFO L226 Difference]: Without dead ends: 238 [2018-10-10 15:36:29,070 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1588 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=639, Invalid=6501, Unknown=0, NotChecked=0, Total=7140 [2018-10-10 15:36:29,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2018-10-10 15:36:29,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 219. [2018-10-10 15:36:29,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2018-10-10 15:36:29,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 220 transitions. [2018-10-10 15:36:29,090 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 220 transitions. Word has length 176 [2018-10-10 15:36:29,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:29,093 INFO L481 AbstractCegarLoop]: Abstraction has 219 states and 220 transitions. [2018-10-10 15:36:29,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-10-10 15:36:29,093 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 220 transitions. [2018-10-10 15:36:29,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2018-10-10 15:36:29,098 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:29,101 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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] [2018-10-10 15:36:29,101 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:29,102 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:29,102 INFO L82 PathProgramCache]: Analyzing trace with hash -2118443943, now seen corresponding path program 3 times [2018-10-10 15:36:29,102 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:29,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:30,317 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 24 [2018-10-10 15:36:34,181 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:36:34,181 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:36:34,181 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55] total 55 [2018-10-10 15:36:34,182 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-10-10 15:36:34,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-10-10 15:36:34,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=2811, Unknown=0, NotChecked=0, Total=2970 [2018-10-10 15:36:34,184 INFO L87 Difference]: Start difference. First operand 219 states and 220 transitions. Second operand 55 states. [2018-10-10 15:36:36,999 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2018-10-10 15:36:37,951 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2018-10-10 15:36:38,519 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2018-10-10 15:36:39,112 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 69 [2018-10-10 15:36:39,663 WARN L178 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 73 [2018-10-10 15:36:40,096 WARN L178 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 78 [2018-10-10 15:36:40,341 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 73 [2018-10-10 15:36:40,928 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 54 [2018-10-10 15:36:41,227 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2018-10-10 15:36:41,432 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2018-10-10 15:36:41,764 WARN L178 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2018-10-10 15:36:42,106 WARN L178 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 93 [2018-10-10 15:36:42,763 WARN L178 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 77 [2018-10-10 15:36:43,127 WARN L178 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 83 [2018-10-10 15:36:43,452 WARN L178 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 84 [2018-10-10 15:36:43,813 WARN L178 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 87 [2018-10-10 15:36:44,119 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 58 [2018-10-10 15:36:44,593 WARN L178 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 93 [2018-10-10 15:36:44,995 WARN L178 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2018-10-10 15:36:45,465 WARN L178 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 97 [2018-10-10 15:36:45,870 WARN L178 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 101 [2018-10-10 15:36:46,325 WARN L178 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 106 [2018-10-10 15:36:47,308 WARN L178 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 108 [2018-10-10 15:36:47,685 WARN L178 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 101 [2018-10-10 15:36:47,975 WARN L178 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 84 [2018-10-10 15:36:48,336 WARN L178 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 88 [2018-10-10 15:36:48,777 WARN L178 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 97 [2018-10-10 15:36:49,157 WARN L178 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 99 [2018-10-10 15:36:49,768 WARN L178 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 126 [2018-10-10 15:36:50,511 WARN L178 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 144 [2018-10-10 15:36:50,919 WARN L178 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 108 [2018-10-10 15:36:51,559 WARN L178 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 154 [2018-10-10 15:36:51,789 WARN L178 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2018-10-10 15:36:52,316 WARN L178 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 136 [2018-10-10 15:36:52,628 WARN L178 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2018-10-10 15:36:53,149 WARN L178 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2018-10-10 15:36:53,536 WARN L178 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 102 [2018-10-10 15:36:54,211 WARN L178 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 112 [2018-10-10 15:36:54,702 WARN L178 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 116 [2018-10-10 15:36:55,201 WARN L178 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 120 [2018-10-10 15:36:55,673 WARN L178 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 92 [2018-10-10 15:36:56,421 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 56 [2018-10-10 15:36:57,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:57,971 INFO L93 Difference]: Finished difference Result 275 states and 276 transitions. [2018-10-10 15:36:57,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2018-10-10 15:36:57,972 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 218 [2018-10-10 15:36:57,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:57,974 INFO L225 Difference]: With dead ends: 275 [2018-10-10 15:36:57,974 INFO L226 Difference]: Without dead ends: 275 [2018-10-10 15:36:57,980 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4794 ImplicationChecksByTransitivity, 23.1s TimeCoverageRelationStatistics Valid=1712, Invalid=17470, Unknown=0, NotChecked=0, Total=19182 [2018-10-10 15:36:57,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2018-10-10 15:36:57,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 247. [2018-10-10 15:36:57,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2018-10-10 15:36:57,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 248 transitions. [2018-10-10 15:36:57,990 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 248 transitions. Word has length 218 [2018-10-10 15:36:57,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:57,991 INFO L481 AbstractCegarLoop]: Abstraction has 247 states and 248 transitions. [2018-10-10 15:36:57,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-10-10 15:36:57,991 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 248 transitions. [2018-10-10 15:36:57,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2018-10-10 15:36:57,994 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:57,994 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2018-10-10 15:36:57,995 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:57,995 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:57,995 INFO L82 PathProgramCache]: Analyzing trace with hash -112079321, now seen corresponding path program 4 times [2018-10-10 15:36:57,996 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:58,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:58,695 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 9 [2018-10-10 15:37:02,460 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 60 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:37:02,461 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:37:02,461 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55] total 55 [2018-10-10 15:37:02,462 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-10-10 15:37:02,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-10-10 15:37:02,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=2819, Unknown=0, NotChecked=0, Total=2970 [2018-10-10 15:37:02,463 INFO L87 Difference]: Start difference. First operand 247 states and 248 transitions. Second operand 55 states. [2018-10-10 15:37:05,270 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2018-10-10 15:37:05,918 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2018-10-10 15:37:06,282 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2018-10-10 15:37:06,513 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2018-10-10 15:37:07,000 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 60 [2018-10-10 15:37:07,945 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2018-10-10 15:37:08,182 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2018-10-10 15:37:08,362 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2018-10-10 15:37:09,006 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2018-10-10 15:37:09,189 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2018-10-10 15:37:09,457 WARN L178 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2018-10-10 15:37:09,779 WARN L178 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2018-10-10 15:37:10,351 WARN L178 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2018-10-10 15:37:10,668 WARN L178 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2018-10-10 15:37:11,015 WARN L178 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 94 [2018-10-10 15:37:11,349 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2018-10-10 15:37:11,634 WARN L178 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2018-10-10 15:37:12,027 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2018-10-10 15:37:12,604 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 77 [2018-10-10 15:37:13,649 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 75 [2018-10-10 15:37:16,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:37:16,435 INFO L93 Difference]: Finished difference Result 394 states and 395 transitions. [2018-10-10 15:37:16,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2018-10-10 15:37:16,435 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 246 [2018-10-10 15:37:16,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:37:16,438 INFO L225 Difference]: With dead ends: 394 [2018-10-10 15:37:16,438 INFO L226 Difference]: Without dead ends: 308 [2018-10-10 15:37:16,444 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4284 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=972, Invalid=16058, Unknown=0, NotChecked=0, Total=17030 [2018-10-10 15:37:16,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2018-10-10 15:37:16,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 289. [2018-10-10 15:37:16,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2018-10-10 15:37:16,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 290 transitions. [2018-10-10 15:37:16,452 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 290 transitions. Word has length 246 [2018-10-10 15:37:16,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:37:16,453 INFO L481 AbstractCegarLoop]: Abstraction has 289 states and 290 transitions. [2018-10-10 15:37:16,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-10-10 15:37:16,453 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 290 transitions. [2018-10-10 15:37:16,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2018-10-10 15:37:16,456 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:37:16,457 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:37:16,457 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:37:16,457 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:37:16,458 INFO L82 PathProgramCache]: Analyzing trace with hash 500630444, now seen corresponding path program 5 times [2018-10-10 15:37:16,461 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:37:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:37:17,463 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 9 [2018-10-10 15:37:25,167 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 279 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:37:25,167 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:37:25,168 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [76] total 76 [2018-10-10 15:37:25,168 INFO L460 AbstractCegarLoop]: Interpolant automaton has 76 states [2018-10-10 15:37:25,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2018-10-10 15:37:25,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=5469, Unknown=0, NotChecked=0, Total=5700 [2018-10-10 15:37:25,170 INFO L87 Difference]: Start difference. First operand 289 states and 290 transitions. Second operand 76 states. [2018-10-10 15:37:29,883 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2018-10-10 15:37:30,254 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 51 [2018-10-10 15:37:30,563 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 69 [2018-10-10 15:37:30,905 WARN L178 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 73 [2018-10-10 15:37:31,316 WARN L178 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 78 [2018-10-10 15:37:31,582 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 73 [2018-10-10 15:37:32,249 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2018-10-10 15:37:32,594 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2018-10-10 15:37:32,827 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2018-10-10 15:37:33,142 WARN L178 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2018-10-10 15:37:33,540 WARN L178 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 95 [2018-10-10 15:37:34,279 WARN L178 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 81 [2018-10-10 15:37:34,706 WARN L178 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 89 [2018-10-10 15:37:35,160 WARN L178 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 90 [2018-10-10 15:37:35,643 WARN L178 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 95 [2018-10-10 15:37:36,039 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 61 [2018-10-10 15:37:36,789 WARN L178 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 105 [2018-10-10 15:37:37,286 WARN L178 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 72 [2018-10-10 15:37:37,917 WARN L178 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 109 [2018-10-10 15:37:38,484 WARN L178 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 102 [2018-10-10 15:37:39,054 WARN L178 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 111 [2018-10-10 15:37:39,566 WARN L178 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 106 [2018-10-10 15:37:39,947 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2018-10-10 15:37:40,308 WARN L178 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 71 [2018-10-10 15:37:40,635 WARN L178 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 73 [2018-10-10 15:37:41,157 WARN L178 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 84 [2018-10-10 15:37:41,550 WARN L178 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 83 [2018-10-10 15:37:42,094 WARN L178 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 120 [2018-10-10 15:37:42,748 WARN L178 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 129 [2018-10-10 15:37:43,197 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 68 [2018-10-10 15:37:43,747 WARN L178 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 107 [2018-10-10 15:37:44,391 WARN L178 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 115 [2018-10-10 15:37:45,040 WARN L178 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 119 [2018-10-10 15:37:45,768 WARN L178 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 123 [2018-10-10 15:37:46,302 WARN L178 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 79 [2018-10-10 15:37:47,267 WARN L178 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 134 [2018-10-10 15:37:47,879 WARN L178 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 90 [2018-10-10 15:37:48,710 WARN L178 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 137 [2018-10-10 15:37:49,465 WARN L178 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 149 [2018-10-10 15:37:50,338 WARN L178 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 158 [2018-10-10 15:37:51,332 WARN L178 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 164 [2018-10-10 15:37:52,148 WARN L178 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 153 [2018-10-10 15:37:52,579 WARN L178 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 118 [2018-10-10 15:37:53,053 WARN L178 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 122 [2018-10-10 15:37:53,769 WARN L178 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 134 [2018-10-10 15:37:54,450 WARN L178 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 136 [2018-10-10 15:37:55,505 WARN L178 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 194 [2018-10-10 15:37:56,793 WARN L178 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 340 DAG size of output: 224 [2018-10-10 15:37:57,544 WARN L178 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 147 [2018-10-10 15:37:58,798 WARN L178 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 310 DAG size of output: 238 [2018-10-10 15:37:59,200 WARN L178 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 96 [2018-10-10 15:38:00,177 WARN L178 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 208 [2018-10-10 15:38:00,788 WARN L178 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 133 [2018-10-10 15:38:01,851 WARN L178 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 199 [2018-10-10 15:38:02,587 WARN L178 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 142 [2018-10-10 15:38:03,770 WARN L178 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 169 [2018-10-10 15:38:04,682 WARN L178 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 174 [2018-10-10 15:38:05,588 WARN L178 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 178 [2018-10-10 15:38:06,254 WARN L178 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 119 [2018-10-10 15:38:06,899 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 54 [2018-10-10 15:38:07,275 WARN L178 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 72 [2018-10-10 15:38:07,631 WARN L178 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 90 [2018-10-10 15:38:07,980 WARN L178 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 96 [2018-10-10 15:38:08,242 WARN L178 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2018-10-10 15:38:09,835 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 56 [2018-10-10 15:38:11,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:38:11,553 INFO L93 Difference]: Finished difference Result 345 states and 346 transitions. [2018-10-10 15:38:11,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2018-10-10 15:38:11,553 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 288 [2018-10-10 15:38:11,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:38:11,557 INFO L225 Difference]: With dead ends: 345 [2018-10-10 15:38:11,557 INFO L226 Difference]: Without dead ends: 345 [2018-10-10 15:38:11,560 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9901 ImplicationChecksByTransitivity, 46.0s TimeCoverageRelationStatistics Valid=2840, Invalid=33832, Unknown=0, NotChecked=0, Total=36672 [2018-10-10 15:38:11,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2018-10-10 15:38:11,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 317. [2018-10-10 15:38:11,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2018-10-10 15:38:11,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 318 transitions. [2018-10-10 15:38:11,567 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 318 transitions. Word has length 288 [2018-10-10 15:38:11,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:38:11,568 INFO L481 AbstractCegarLoop]: Abstraction has 317 states and 318 transitions. [2018-10-10 15:38:11,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 76 states. [2018-10-10 15:38:11,568 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 318 transitions. [2018-10-10 15:38:11,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2018-10-10 15:38:11,572 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:38:11,572 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:38:11,573 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:38:11,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:38:11,573 INFO L82 PathProgramCache]: Analyzing trace with hash 721701626, now seen corresponding path program 6 times [2018-10-10 15:38:11,574 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:38:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:38:16,856 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2018-10-10 15:38:17,262 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2018-10-10 15:38:21,960 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 68 proven. 316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:38:21,961 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:38:21,961 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [98] total 98 [2018-10-10 15:38:21,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 98 states [2018-10-10 15:38:21,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2018-10-10 15:38:21,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=317, Invalid=9189, Unknown=0, NotChecked=0, Total=9506 [2018-10-10 15:38:21,963 INFO L87 Difference]: Start difference. First operand 317 states and 318 transitions. Second operand 98 states. [2018-10-10 15:38:27,900 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2018-10-10 15:38:29,220 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2018-10-10 15:38:29,520 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2018-10-10 15:38:30,303 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2018-10-10 15:38:30,882 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2018-10-10 15:38:31,861 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2018-10-10 15:38:32,202 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2018-10-10 15:38:32,452 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2018-10-10 15:38:33,738 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2018-10-10 15:38:34,065 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2018-10-10 15:38:34,496 WARN L178 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2018-10-10 15:38:35,176 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2018-10-10 15:38:35,612 WARN L178 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2018-10-10 15:38:36,037 WARN L178 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2018-10-10 15:38:36,512 WARN L178 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 96 [2018-10-10 15:38:37,010 WARN L178 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 99 [2018-10-10 15:38:37,616 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2018-10-10 15:38:38,132 WARN L178 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 87 [2018-10-10 15:38:38,533 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 72 [2018-10-10 15:38:38,950 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 77 [2018-10-10 15:38:40,074 WARN L178 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 90 [2018-10-10 15:38:40,515 WARN L178 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 96 [2018-10-10 15:38:40,850 WARN L178 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2018-10-10 15:38:42,032 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 54 [2018-10-10 15:38:42,339 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2018-10-10 15:38:42,769 WARN L178 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 90 [2018-10-10 15:38:43,346 WARN L178 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 119 [2018-10-10 15:38:43,979 WARN L178 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 119 [2018-10-10 15:38:44,619 WARN L178 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2018-10-10 15:38:45,300 WARN L178 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 130 [2018-10-10 15:38:45,947 WARN L178 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 128 [2018-10-10 15:38:46,693 WARN L178 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 139 [2018-10-10 15:38:47,492 WARN L178 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 87 [2018-10-10 15:38:48,196 WARN L178 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 118 [2018-10-10 15:38:48,646 WARN L178 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2018-10-10 15:38:49,150 WARN L178 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 99 [2018-10-10 15:38:49,826 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2018-10-10 15:38:50,426 WARN L178 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 117 [2018-10-10 15:38:51,176 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2018-10-10 15:38:51,583 WARN L178 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2018-10-10 15:38:52,315 WARN L178 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2018-10-10 15:38:52,739 WARN L178 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 127 [2018-10-10 15:38:53,198 WARN L178 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 121 [2018-10-10 15:38:53,467 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2018-10-10 15:38:53,746 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2018-10-10 15:39:00,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:39:00,818 INFO L93 Difference]: Finished difference Result 481 states and 482 transitions. [2018-10-10 15:39:00,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2018-10-10 15:39:00,821 INFO L78 Accepts]: Start accepts. Automaton has 98 states. Word has length 316 [2018-10-10 15:39:00,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:39:00,823 INFO L225 Difference]: With dead ends: 481 [2018-10-10 15:39:00,823 INFO L226 Difference]: Without dead ends: 364 [2018-10-10 15:39:00,826 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 212 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12415 ImplicationChecksByTransitivity, 32.6s TimeCoverageRelationStatistics Valid=2216, Invalid=43366, Unknown=0, NotChecked=0, Total=45582 [2018-10-10 15:39:00,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2018-10-10 15:39:00,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 359. [2018-10-10 15:39:00,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2018-10-10 15:39:00,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 360 transitions. [2018-10-10 15:39:00,833 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 360 transitions. Word has length 316 [2018-10-10 15:39:00,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:39:00,833 INFO L481 AbstractCegarLoop]: Abstraction has 359 states and 360 transitions. [2018-10-10 15:39:00,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 98 states. [2018-10-10 15:39:00,834 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 360 transitions. [2018-10-10 15:39:00,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2018-10-10 15:39:00,836 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:39:00,836 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:39:00,836 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:39:00,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:39:00,837 INFO L82 PathProgramCache]: Analyzing trace with hash -2120621889, now seen corresponding path program 7 times [2018-10-10 15:39:00,837 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:39:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:39:02,106 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 9 [2018-10-10 15:39:05,951 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-10-10 15:39:08,537 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2018-10-10 15:39:16,680 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 0 proven. 512 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:39:16,680 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:39:16,681 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [109] total 109 [2018-10-10 15:39:16,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 109 states [2018-10-10 15:39:16,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2018-10-10 15:39:16,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=393, Invalid=11379, Unknown=0, NotChecked=0, Total=11772 [2018-10-10 15:39:16,682 INFO L87 Difference]: Start difference. First operand 359 states and 360 transitions. Second operand 109 states. [2018-10-10 15:39:23,779 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2018-10-10 15:39:24,866 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2018-10-10 15:39:25,922 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 69 [2018-10-10 15:39:26,352 WARN L178 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 73 [2018-10-10 15:39:26,806 WARN L178 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 78 [2018-10-10 15:39:27,153 WARN L178 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 73 [2018-10-10 15:39:27,871 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 52 [2018-10-10 15:39:28,143 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 54 [2018-10-10 15:39:28,680 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2018-10-10 15:39:29,049 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2018-10-10 15:39:29,445 WARN L178 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2018-10-10 15:39:29,927 WARN L178 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 95 [2018-10-10 15:39:30,565 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2018-10-10 15:39:31,029 WARN L178 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 82 [2018-10-10 15:39:31,579 WARN L178 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 89 [2018-10-10 15:39:32,120 WARN L178 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 91 [2018-10-10 15:39:32,733 WARN L178 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 93 [2018-10-10 15:39:33,375 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 62 [2018-10-10 15:39:34,319 WARN L178 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 101 [2018-10-10 15:39:35,082 WARN L178 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 72 [2018-10-10 15:39:35,818 WARN L178 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 105 [2018-10-10 15:39:36,455 WARN L178 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 106 [2018-10-10 15:39:37,137 WARN L178 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 113 [2018-10-10 15:39:37,708 WARN L178 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 108 [2018-10-10 15:39:37,947 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2018-10-10 15:39:38,222 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 56 [2018-10-10 15:39:38,697 WARN L178 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 72 [2018-10-10 15:39:39,191 WARN L178 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 74 [2018-10-10 15:39:39,875 WARN L178 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 85 [2018-10-10 15:39:40,299 WARN L178 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 84 [2018-10-10 15:39:40,930 WARN L178 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 124 [2018-10-10 15:39:41,704 WARN L178 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 132 [2018-10-10 15:39:42,390 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 70 [2018-10-10 15:39:43,043 WARN L178 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 113 [2018-10-10 15:39:43,823 WARN L178 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 118 [2018-10-10 15:39:44,665 WARN L178 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 124 [2018-10-10 15:39:45,623 WARN L178 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 136 [2018-10-10 15:39:46,355 WARN L178 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 80 [2018-10-10 15:39:47,538 WARN L178 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 296 DAG size of output: 146 [2018-10-10 15:39:48,479 WARN L178 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 90 [2018-10-10 15:39:49,632 WARN L178 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 150 [2018-10-10 15:39:50,608 WARN L178 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 150 [2018-10-10 15:39:51,694 WARN L178 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 159 [2018-10-10 15:39:52,638 WARN L178 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 154 [2018-10-10 15:39:52,968 WARN L178 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 71 [2018-10-10 15:39:53,354 WARN L178 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 75 [2018-10-10 15:39:54,013 WARN L178 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 99 [2018-10-10 15:39:54,699 WARN L178 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 101 [2018-10-10 15:39:55,595 WARN L178 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 114 [2018-10-10 15:39:56,180 WARN L178 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 109 [2018-10-10 15:39:57,141 WARN L178 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 168 [2018-10-10 15:39:58,331 WARN L178 SmtUtils]: Spent 911.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 176 [2018-10-10 15:39:59,125 WARN L178 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 89 [2018-10-10 15:40:00,165 WARN L178 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 150 [2018-10-10 15:40:01,471 WARN L178 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 153 [2018-10-10 15:40:02,627 WARN L178 SmtUtils]: Spent 785.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 160 [2018-10-10 15:40:03,879 WARN L178 SmtUtils]: Spent 919.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 172 [2018-10-10 15:40:04,833 WARN L178 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 103 [2018-10-10 15:40:06,575 WARN L178 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 370 DAG size of output: 193 [2018-10-10 15:40:07,735 WARN L178 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 117 [2018-10-10 15:40:09,452 WARN L178 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 374 DAG size of output: 197 [2018-10-10 15:40:10,639 WARN L178 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 193 [2018-10-10 15:40:11,976 WARN L178 SmtUtils]: Spent 898.00 ms on a formula simplification. DAG size of input: 363 DAG size of output: 201 [2018-10-10 15:40:13,363 WARN L178 SmtUtils]: Spent 926.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 206 [2018-10-10 15:40:14,615 WARN L178 SmtUtils]: Spent 977.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 196 [2018-10-10 15:40:15,265 WARN L178 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 135 [2018-10-10 15:40:15,919 WARN L178 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 139 [2018-10-10 15:40:16,907 WARN L178 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 312 DAG size of output: 162 [2018-10-10 15:40:17,864 WARN L178 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 164 [2018-10-10 15:40:19,506 WARN L178 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 504 DAG size of output: 261 [2018-10-10 15:40:21,518 WARN L178 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 572 DAG size of output: 316 [2018-10-10 15:40:22,568 WARN L178 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 330 DAG size of output: 177 [2018-10-10 15:40:24,540 WARN L178 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 536 DAG size of output: 348 [2018-10-10 15:40:25,215 WARN L178 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 126 [2018-10-10 15:40:26,760 WARN L178 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 468 DAG size of output: 293 [2018-10-10 15:40:27,837 WARN L178 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 185 [2018-10-10 15:40:29,407 WARN L178 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 419 DAG size of output: 289 [2018-10-10 15:40:30,668 WARN L178 SmtUtils]: Spent 964.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 195 [2018-10-10 15:40:32,480 WARN L178 SmtUtils]: Spent 834.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 234 [2018-10-10 15:40:33,878 WARN L178 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 400 DAG size of output: 239 [2018-10-10 15:40:35,225 WARN L178 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 404 DAG size of output: 243 [2018-10-10 15:40:37,024 WARN L178 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 409 DAG size of output: 257 [2018-10-10 15:40:38,544 WARN L178 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 421 DAG size of output: 266 [2018-10-10 15:40:39,287 WARN L178 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 198 [2018-10-10 15:40:40,122 WARN L178 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 207 [2018-10-10 15:40:40,843 WARN L178 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 134 [2018-10-10 15:40:41,424 WARN L178 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 133 [2018-10-10 15:40:42,068 WARN L178 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 122 [2018-10-10 15:40:42,816 WARN L178 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 101 [2018-10-10 15:40:43,463 WARN L178 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 143 [2018-10-10 15:40:44,278 WARN L178 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 185 [2018-10-10 15:40:45,051 WARN L178 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 192 [2018-10-10 15:40:45,682 WARN L178 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 150 [2018-10-10 15:40:46,114 WARN L178 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 109 [2018-10-10 15:40:46,465 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2018-10-10 15:40:46,768 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 72 [2018-10-10 15:40:47,076 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 76 [2018-10-10 15:40:47,499 WARN L178 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 79 [2018-10-10 15:40:47,895 WARN L178 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 86 [2018-10-10 15:40:48,181 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2018-10-10 15:40:48,524 WARN L178 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 87 [2018-10-10 15:40:48,824 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 68 [2018-10-10 15:40:49,148 WARN L178 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 74 [2018-10-10 15:40:49,516 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 65 [2018-10-10 15:40:49,968 WARN L178 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 87 [2018-10-10 15:40:50,483 WARN L178 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 109 [2018-10-10 15:40:51,004 WARN L178 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2018-10-10 15:40:51,361 WARN L178 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 90 [2018-10-10 15:40:51,624 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2018-10-10 15:40:52,495 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2018-10-10 15:40:52,748 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2018-10-10 15:40:53,166 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2018-10-10 15:40:54,022 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 49 [2018-10-10 15:40:54,313 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 58 [2018-10-10 15:40:56,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:40:56,891 INFO L93 Difference]: Finished difference Result 415 states and 416 transitions. [2018-10-10 15:40:56,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2018-10-10 15:40:56,892 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 358 [2018-10-10 15:40:56,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:40:56,895 INFO L225 Difference]: With dead ends: 415 [2018-10-10 15:40:56,896 INFO L226 Difference]: Without dead ends: 415 [2018-10-10 15:40:56,898 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 4 SyntacticMatches, 5 SemanticMatches, 265 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19167 ImplicationChecksByTransitivity, 96.6s TimeCoverageRelationStatistics Valid=5323, Invalid=65699, Unknown=0, NotChecked=0, Total=71022 [2018-10-10 15:40:56,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2018-10-10 15:40:56,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 387. [2018-10-10 15:40:56,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2018-10-10 15:40:56,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 388 transitions. [2018-10-10 15:40:56,906 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 388 transitions. Word has length 358 [2018-10-10 15:40:56,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:40:56,907 INFO L481 AbstractCegarLoop]: Abstraction has 387 states and 388 transitions. [2018-10-10 15:40:56,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 109 states. [2018-10-10 15:40:56,907 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 388 transitions. [2018-10-10 15:40:56,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2018-10-10 15:40:56,909 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:40:56,910 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:56,910 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:40:56,910 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:40:56,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1089969549, now seen corresponding path program 8 times [2018-10-10 15:40:56,911 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:40:56,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:40:57,683 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-10 15:40:57,901 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-10 15:40:58,110 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-10 15:41:14,093 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 110 proven. 535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:41:14,094 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:41:14,094 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [131] total 131 [2018-10-10 15:41:14,094 INFO L460 AbstractCegarLoop]: Interpolant automaton has 131 states [2018-10-10 15:41:14,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2018-10-10 15:41:14,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=453, Invalid=16577, Unknown=0, NotChecked=0, Total=17030 [2018-10-10 15:41:14,095 INFO L87 Difference]: Start difference. First operand 387 states and 388 transitions. Second operand 131 states. [2018-10-10 15:41:25,019 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 56 [2018-10-10 15:41:25,270 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 51 [2018-10-10 15:41:26,499 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 41 [2018-10-10 15:41:26,915 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 50 [2018-10-10 15:41:27,302 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 60 [2018-10-10 15:41:27,730 WARN L178 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 68 [2018-10-10 15:41:28,902 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2018-10-10 15:41:29,514 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 51 [2018-10-10 15:41:31,582 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2018-10-10 15:41:32,018 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 70 [2018-10-10 15:41:32,281 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 65 [2018-10-10 15:41:33,736 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 49 [2018-10-10 15:41:34,136 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 57 [2018-10-10 15:41:34,605 WARN L178 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 74 [2018-10-10 15:41:35,130 WARN L178 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 80 [2018-10-10 15:41:36,125 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2018-10-10 15:41:36,481 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2018-10-10 15:41:36,884 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 67 [2018-10-10 15:41:37,317 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 69 [2018-10-10 15:41:38,503 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2018-10-10 15:41:39,767 WARN L178 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 91 [2018-10-10 15:41:40,429 WARN L178 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 99 [2018-10-10 15:41:40,968 WARN L178 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 94 [2018-10-10 15:41:41,738 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2018-10-10 15:41:42,066 WARN L178 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2018-10-10 15:41:42,398 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 42 [2018-10-10 15:41:42,884 WARN L178 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2018-10-10 15:41:43,366 WARN L178 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2018-10-10 15:41:43,998 WARN L178 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 93 [2018-10-10 15:41:44,836 WARN L178 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 122 [2018-10-10 15:41:45,738 WARN L178 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 120 [2018-10-10 15:41:46,431 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2018-10-10 15:41:47,059 WARN L178 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 119 [2018-10-10 15:41:47,668 WARN L178 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 110 [2018-10-10 15:41:48,275 WARN L178 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 119 [2018-10-10 15:41:49,079 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 76 [2018-10-10 15:41:49,615 WARN L178 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 104 [2018-10-10 15:41:50,015 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2018-10-10 15:41:50,480 WARN L178 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 93 [2018-10-10 15:41:51,194 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 65 [2018-10-10 15:41:51,868 WARN L178 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 115 [2018-10-10 15:41:52,467 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2018-10-10 15:41:52,875 WARN L178 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2018-10-10 15:41:53,305 WARN L178 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 110 [2018-10-10 15:41:54,249 WARN L178 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 113 [2018-10-10 15:41:54,800 WARN L178 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 133 [2018-10-10 15:41:55,320 WARN L178 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 126 [2018-10-10 15:41:55,662 WARN L178 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2018-10-10 15:41:56,028 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 82 [2018-10-10 15:41:57,127 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2018-10-10 15:41:57,560 WARN L178 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2018-10-10 15:41:58,383 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2018-10-10 15:41:58,722 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2018-10-10 15:41:59,510 WARN L178 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2018-10-10 15:42:00,011 WARN L178 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2018-10-10 15:42:02,446 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2018-10-10 15:42:02,807 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2018-10-10 15:42:03,116 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2018-10-10 15:42:03,503 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2018-10-10 15:42:04,311 WARN L178 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2018-10-10 15:42:04,812 WARN L178 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 126 [2018-10-10 15:42:06,863 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53 [2018-10-10 15:42:08,075 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2018-10-10 15:42:08,382 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2018-10-10 15:42:08,753 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2018-10-10 15:42:09,522 WARN L178 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2018-10-10 15:42:09,973 WARN L178 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2018-10-10 15:42:12,686 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2018-10-10 15:42:13,053 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2018-10-10 15:42:13,605 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2018-10-10 15:42:13,895 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2018-10-10 15:42:16,017 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 50 [2018-10-10 15:42:16,303 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2018-10-10 15:42:16,668 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2018-10-10 15:42:16,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:42:16,987 INFO L93 Difference]: Finished difference Result 579 states and 580 transitions. [2018-10-10 15:42:16,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2018-10-10 15:42:16,987 INFO L78 Accepts]: Start accepts. Automaton has 131 states. Word has length 386 [2018-10-10 15:42:16,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:42:16,991 INFO L225 Difference]: With dead ends: 579 [2018-10-10 15:42:16,991 INFO L226 Difference]: Without dead ends: 434 [2018-10-10 15:42:16,993 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 3 SyntacticMatches, 7 SemanticMatches, 289 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25634 ImplicationChecksByTransitivity, 52.2s TimeCoverageRelationStatistics Valid=3191, Invalid=81199, Unknown=0, NotChecked=0, Total=84390 [2018-10-10 15:42:16,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-10-10 15:42:16,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 429. [2018-10-10 15:42:16,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2018-10-10 15:42:17,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 430 transitions. [2018-10-10 15:42:17,000 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 430 transitions. Word has length 386 [2018-10-10 15:42:17,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:42:17,001 INFO L481 AbstractCegarLoop]: Abstraction has 429 states and 430 transitions. [2018-10-10 15:42:17,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 131 states. [2018-10-10 15:42:17,001 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 430 transitions. [2018-10-10 15:42:17,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2018-10-10 15:42:17,003 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:42:17,004 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:17,004 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:42:17,004 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:42:17,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1413323886, now seen corresponding path program 9 times [2018-10-10 15:42:17,005 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:42:17,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:42:22,008 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 51 [2018-10-10 15:42:25,092 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2018-10-10 15:42:25,364 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2018-10-10 15:42:25,634 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2018-10-10 15:42:25,918 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2018-10-10 15:42:26,218 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2018-10-10 15:42:27,069 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2018-10-10 15:42:29,458 WARN L178 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 62 [2018-10-10 15:42:29,793 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2018-10-10 15:42:30,123 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2018-10-10 15:42:30,465 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2018-10-10 15:42:30,745 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47 [2018-10-10 15:42:31,051 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47 [2018-10-10 15:42:31,420 WARN L178 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 62 [2018-10-10 15:42:41,811 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 0 proven. 815 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:42:41,811 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:42:41,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [129] total 129 [2018-10-10 15:42:41,812 INFO L460 AbstractCegarLoop]: Interpolant automaton has 129 states [2018-10-10 15:42:41,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 129 interpolants. [2018-10-10 15:42:41,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=451, Invalid=16061, Unknown=0, NotChecked=0, Total=16512 [2018-10-10 15:42:41,813 INFO L87 Difference]: Start difference. First operand 429 states and 430 transitions. Second operand 129 states. [2018-10-10 15:42:44,781 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 46 [2018-10-10 15:42:45,128 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 49 [2018-10-10 15:42:48,643 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2018-10-10 15:42:50,355 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2018-10-10 15:42:51,372 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 69 [2018-10-10 15:42:51,888 WARN L178 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 73 [2018-10-10 15:42:52,421 WARN L178 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 78 [2018-10-10 15:42:52,883 WARN L178 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 73 [2018-10-10 15:42:53,135 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 49 [2018-10-10 15:42:53,431 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 52 [2018-10-10 15:42:54,469 WARN L178 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 51 [2018-10-10 15:42:54,823 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 53 [2018-10-10 15:42:55,439 WARN L178 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 62 [2018-10-10 15:42:55,759 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2018-10-10 15:42:56,177 WARN L178 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2018-10-10 15:42:56,658 WARN L178 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 93 [2018-10-10 15:42:57,625 WARN L178 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2018-10-10 15:42:58,095 WARN L178 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 85 [2018-10-10 15:42:58,592 WARN L178 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 86 [2018-10-10 15:42:59,238 WARN L178 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 90 [2018-10-10 15:42:59,862 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2018-10-10 15:43:00,719 WARN L178 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 97 [2018-10-10 15:43:01,482 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2018-10-10 15:43:02,161 WARN L178 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 101 [2018-10-10 15:43:02,871 WARN L178 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 99 [2018-10-10 15:43:03,607 WARN L178 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 106 [2018-10-10 15:43:04,257 WARN L178 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 101 [2018-10-10 15:43:04,554 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 60 [2018-10-10 15:43:04,915 WARN L178 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 63 [2018-10-10 15:43:05,493 WARN L178 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 66 [2018-10-10 15:43:05,981 WARN L178 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 68 [2018-10-10 15:43:06,757 WARN L178 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 79 [2018-10-10 15:43:07,201 WARN L178 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 79 [2018-10-10 15:43:07,903 WARN L178 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 116 [2018-10-10 15:43:08,638 WARN L178 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 124 [2018-10-10 15:43:09,430 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2018-10-10 15:43:10,018 WARN L178 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2018-10-10 15:43:10,729 WARN L178 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 113 [2018-10-10 15:43:11,437 WARN L178 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 113 [2018-10-10 15:43:12,262 WARN L178 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 121 [2018-10-10 15:43:13,007 WARN L178 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 74 [2018-10-10 15:43:14,154 WARN L178 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 127 [2018-10-10 15:43:15,056 WARN L178 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 80 [2018-10-10 15:43:16,051 WARN L178 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 131 [2018-10-10 15:43:17,052 WARN L178 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 129 [2018-10-10 15:43:18,123 WARN L178 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 139 [2018-10-10 15:43:19,043 WARN L178 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 134 [2018-10-10 15:43:19,490 WARN L178 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 76 [2018-10-10 15:43:19,954 WARN L178 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 79 [2018-10-10 15:43:20,696 WARN L178 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 85 [2018-10-10 15:43:21,367 WARN L178 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 87 [2018-10-10 15:43:22,374 WARN L178 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 100 [2018-10-10 15:43:22,974 WARN L178 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 100 [2018-10-10 15:43:23,948 WARN L178 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 153 [2018-10-10 15:43:25,065 WARN L178 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 162 [2018-10-10 15:43:25,903 WARN L178 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 88 [2018-10-10 15:43:26,845 WARN L178 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 147 [2018-10-10 15:43:27,913 WARN L178 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 154 [2018-10-10 15:43:28,947 WARN L178 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 158 [2018-10-10 15:43:30,318 WARN L178 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 176 [2018-10-10 15:43:31,323 WARN L178 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 94 [2018-10-10 15:43:33,032 WARN L178 SmtUtils]: Spent 987.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 188 [2018-10-10 15:43:34,183 WARN L178 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 102 [2018-10-10 15:43:35,730 WARN L178 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 420 DAG size of output: 192 [2018-10-10 15:43:37,058 WARN L178 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 328 DAG size of output: 172 [2018-10-10 15:43:38,523 WARN L178 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 190 [2018-10-10 15:43:39,887 WARN L178 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 344 DAG size of output: 184 [2018-10-10 15:43:40,387 WARN L178 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 96 [2018-10-10 15:43:41,010 WARN L178 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 99 [2018-10-10 15:43:42,019 WARN L178 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 115 [2018-10-10 15:43:42,977 WARN L178 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 117 [2018-10-10 15:43:44,212 WARN L178 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 132 [2018-10-10 15:43:45,065 WARN L178 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 128 [2018-10-10 15:43:46,399 WARN L178 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 200 [2018-10-10 15:43:47,898 WARN L178 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 359 DAG size of output: 212 [2018-10-10 15:43:48,931 WARN L178 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 105 [2018-10-10 15:43:50,251 WARN L178 SmtUtils]: Spent 821.00 ms on a formula simplification. DAG size of input: 329 DAG size of output: 187 [2018-10-10 15:43:51,641 WARN L178 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 399 DAG size of output: 189 [2018-10-10 15:43:52,985 WARN L178 SmtUtils]: Spent 862.00 ms on a formula simplification. DAG size of input: 407 DAG size of output: 204 [2018-10-10 15:43:54,546 WARN L178 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 498 DAG size of output: 216 [2018-10-10 15:43:55,666 WARN L178 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 117 [2018-10-10 15:43:57,507 WARN L178 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 513 DAG size of output: 225 [2018-10-10 15:43:58,800 WARN L178 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 121 [2018-10-10 15:44:00,556 WARN L178 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 517 DAG size of output: 229 [2018-10-10 15:44:02,073 WARN L178 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 453 DAG size of output: 227 [2018-10-10 15:44:03,916 WARN L178 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 474 DAG size of output: 243 [2018-10-10 15:44:05,802 WARN L178 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 562 DAG size of output: 245 [2018-10-10 15:44:07,436 WARN L178 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 469 DAG size of output: 238 [2018-10-10 15:44:08,522 WARN L178 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 305 DAG size of output: 201 [2018-10-10 15:44:09,768 WARN L178 SmtUtils]: Spent 815.00 ms on a formula simplification. DAG size of input: 330 DAG size of output: 204 [2018-10-10 15:44:11,413 WARN L178 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 425 DAG size of output: 193 [2018-10-10 15:44:13,165 WARN L178 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 428 DAG size of output: 197 [2018-10-10 15:44:15,446 WARN L178 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 656 DAG size of output: 326 [2018-10-10 15:44:18,263 WARN L178 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 750 DAG size of output: 407 [2018-10-10 15:44:20,067 WARN L178 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 449 DAG size of output: 213 [2018-10-10 15:44:22,959 WARN L178 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 689 DAG size of output: 468 [2018-10-10 15:44:23,825 WARN L178 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 144 [2018-10-10 15:44:26,019 WARN L178 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 595 DAG size of output: 387 [2018-10-10 15:44:27,402 WARN L178 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 300 DAG size of output: 216 [2018-10-10 15:44:29,574 WARN L178 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 513 DAG size of output: 377 [2018-10-10 15:44:31,202 WARN L178 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 382 DAG size of output: 228 [2018-10-10 15:44:33,445 WARN L178 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 419 DAG size of output: 296 [2018-10-10 15:44:35,247 WARN L178 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 423 DAG size of output: 300 [2018-10-10 15:44:37,075 WARN L178 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 427 DAG size of output: 304 [2018-10-10 15:44:39,204 WARN L178 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 434 DAG size of output: 309 [2018-10-10 15:44:41,186 WARN L178 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 450 DAG size of output: 317 [2018-10-10 15:44:42,468 WARN L178 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 219 [2018-10-10 15:44:43,942 WARN L178 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 307 DAG size of output: 231 [2018-10-10 15:44:44,825 WARN L178 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 167 [2018-10-10 15:44:45,991 WARN L178 SmtUtils]: Spent 875.00 ms on a formula simplification. DAG size of input: 297 DAG size of output: 256 [2018-10-10 15:44:47,303 WARN L178 SmtUtils]: Spent 969.00 ms on a formula simplification. DAG size of input: 295 DAG size of output: 250 [2018-10-10 15:44:48,375 WARN L178 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 229 [2018-10-10 15:44:49,617 WARN L178 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 223 [2018-10-10 15:44:50,695 WARN L178 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 188