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_37.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:35:36,617 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:35:36,619 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:35:36,630 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:35:36,630 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:35:36,632 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:35:36,633 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:35:36,635 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:35:36,636 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:35:36,637 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:35:36,638 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:35:36,638 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:35:36,639 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:35:36,640 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:35:36,641 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:35:36,642 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:35:36,643 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:35:36,645 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:35:36,647 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:35:36,649 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:35:36,650 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:35:36,651 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:35:36,654 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 15:35:36,654 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 15:35:36,654 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 15:35:36,658 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 15:35:36,659 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 15:35:36,659 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 15:35:36,660 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 15:35:36,663 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 15:35:36,665 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 15:35:36,665 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-10 15:35:36,670 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 15:35:36,688 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:35:36,689 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:35:36,689 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:35:36,693 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:35:36,693 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:35:36,693 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:35:36,694 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:35:36,694 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:35:36,694 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:35:36,694 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:35:36,695 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:35:36,695 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:35:36,695 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:35:36,696 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:35:36,696 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:35:36,748 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:35:36,765 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:35:36,772 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:35:36,773 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:35:36,774 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:35:36,775 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/dll_extends_pointer_true-valid-memsafety.i_37.bpl [2018-10-10 15:35:36,775 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/dll_extends_pointer_true-valid-memsafety.i_37.bpl' [2018-10-10 15:35:36,856 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:35:36,858 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:35:36,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:35:36,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:35:36,859 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:35:36,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:35:36" (1/1) ... [2018-10-10 15:35:36,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:35:36" (1/1) ... [2018-10-10 15:35:36,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:35:36" (1/1) ... [2018-10-10 15:35:36,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:35:36" (1/1) ... [2018-10-10 15:35:36,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:35:36" (1/1) ... [2018-10-10 15:35:36,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:35:36" (1/1) ... [2018-10-10 15:35:36,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:35:36" (1/1) ... [2018-10-10 15:35:36,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:35:36,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:35:36,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:35:36,951 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:35:36,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dll_extends_pointer_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:35:36" (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 15:35:37,028 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:35:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:35:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:35:37,922 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:35:37,923 INFO L202 PluginConnector]: Adding new model dll_extends_pointer_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:35:37 BoogieIcfgContainer [2018-10-10 15:35:37,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:35:37,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:35:37,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:35:37,928 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:35:37,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dll_extends_pointer_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:35:36" (1/2) ... [2018-10-10 15:35:37,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4941792e and model type dll_extends_pointer_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:35:37, skipping insertion in model container [2018-10-10 15:35:37,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dll_extends_pointer_true-valid-memsafety.i_37.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:35:37" (2/2) ... [2018-10-10 15:35:37,932 INFO L112 eAbstractionObserver]: Analyzing ICFG dll_extends_pointer_true-valid-memsafety.i_37.bpl [2018-10-10 15:35:37,943 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:35:37,951 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:35:37,965 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:35:37,993 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:35:37,994 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:35:37,994 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:35:37,995 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:35:37,995 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:35:37,995 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:35:37,995 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:35:37,995 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:35:37,995 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:35:38,018 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2018-10-10 15:35:38,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-10-10 15:35:38,028 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:35:38,029 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] [2018-10-10 15:35:38,031 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:35:38,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:35:38,037 INFO L82 PathProgramCache]: Analyzing trace with hash 724659322, now seen corresponding path program 1 times [2018-10-10 15:35:38,100 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:35:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:35:38,614 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 15:35:38,617 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:35:38,618 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-10 15:35:38,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 15:35:38,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 15:35:38,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-10 15:35:38,650 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 7 states. [2018-10-10 15:35:40,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:35:40,284 INFO L93 Difference]: Finished difference Result 221 states and 223 transitions. [2018-10-10 15:35:40,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-10 15:35:40,286 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-10-10 15:35:40,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:35:40,302 INFO L225 Difference]: With dead ends: 221 [2018-10-10 15:35:40,303 INFO L226 Difference]: Without dead ends: 221 [2018-10-10 15:35:40,305 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2018-10-10 15:35:40,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2018-10-10 15:35:40,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 148. [2018-10-10 15:35:40,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-10-10 15:35:40,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 150 transitions. [2018-10-10 15:35:40,372 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 150 transitions. Word has length 51 [2018-10-10 15:35:40,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:35:40,373 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 150 transitions. [2018-10-10 15:35:40,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 15:35:40,374 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 150 transitions. [2018-10-10 15:35:40,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-10-10 15:35:40,379 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:35:40,379 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-10 15:35:40,379 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:35:40,380 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:35:40,380 INFO L82 PathProgramCache]: Analyzing trace with hash -648700848, now seen corresponding path program 1 times [2018-10-10 15:35:40,381 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:35:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:35:41,331 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:35:41,331 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:35:41,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-10-10 15:35:41,334 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-10 15:35:41,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-10 15:35:41,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2018-10-10 15:35:41,335 INFO L87 Difference]: Start difference. First operand 148 states and 150 transitions. Second operand 14 states. [2018-10-10 15:35:42,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:35:42,531 INFO L93 Difference]: Finished difference Result 209 states and 210 transitions. [2018-10-10 15:35:42,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-10-10 15:35:42,532 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 94 [2018-10-10 15:35:42,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:35:42,537 INFO L225 Difference]: With dead ends: 209 [2018-10-10 15:35:42,537 INFO L226 Difference]: Without dead ends: 164 [2018-10-10 15:35:42,539 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=229, Invalid=893, Unknown=0, NotChecked=0, Total=1122 [2018-10-10 15:35:42,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2018-10-10 15:35:42,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 143. [2018-10-10 15:35:42,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-10-10 15:35:42,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 144 transitions. [2018-10-10 15:35:42,549 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 144 transitions. Word has length 94 [2018-10-10 15:35:42,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:35:42,550 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 144 transitions. [2018-10-10 15:35:42,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-10 15:35:42,550 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 144 transitions. [2018-10-10 15:35:42,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-10-10 15:35:42,552 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:35:42,553 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] [2018-10-10 15:35:42,553 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:35:42,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:35:42,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1072942374, now seen corresponding path program 1 times [2018-10-10 15:35:42,555 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:35:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:35:42,715 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 15:35:42,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:35:42,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-10 15:35:42,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 15:35:42,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 15:35:42,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-10-10 15:35:42,717 INFO L87 Difference]: Start difference. First operand 143 states and 144 transitions. Second operand 7 states. [2018-10-10 15:35:43,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:35:43,094 INFO L93 Difference]: Finished difference Result 178 states and 179 transitions. [2018-10-10 15:35:43,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-10 15:35:43,094 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 103 [2018-10-10 15:35:43,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:35:43,098 INFO L225 Difference]: With dead ends: 178 [2018-10-10 15:35:43,098 INFO L226 Difference]: Without dead ends: 178 [2018-10-10 15:35:43,099 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-10 15:35:43,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-10-10 15:35:43,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 147. [2018-10-10 15:35:43,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-10-10 15:35:43,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 148 transitions. [2018-10-10 15:35:43,109 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 148 transitions. Word has length 103 [2018-10-10 15:35:43,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:35:43,110 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 148 transitions. [2018-10-10 15:35:43,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 15:35:43,110 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 148 transitions. [2018-10-10 15:35:43,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-10-10 15:35:43,113 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:35:43,114 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:35:43,114 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:35:43,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:35:43,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1919064560, now seen corresponding path program 1 times [2018-10-10 15:35:43,115 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:35:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:35:44,726 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2018-10-10 15:35:45,003 WARN L178 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 23 [2018-10-10 15:35:46,438 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:35:46,438 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:35:46,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2018-10-10 15:35:46,439 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-10-10 15:35:46,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-10-10 15:35:46,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1686, Unknown=0, NotChecked=0, Total=1806 [2018-10-10 15:35:46,441 INFO L87 Difference]: Start difference. First operand 147 states and 148 transitions. Second operand 43 states. [2018-10-10 15:35:50,502 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 55 [2018-10-10 15:35:50,702 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2018-10-10 15:35:50,895 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2018-10-10 15:35:51,211 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2018-10-10 15:35:53,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:35:53,493 INFO L93 Difference]: Finished difference Result 209 states and 210 transitions. [2018-10-10 15:35:53,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-10-10 15:35:53,494 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 146 [2018-10-10 15:35:53,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:35:53,500 INFO L225 Difference]: With dead ends: 209 [2018-10-10 15:35:53,500 INFO L226 Difference]: Without dead ends: 209 [2018-10-10 15:35:53,504 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2089 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=1066, Invalid=8054, Unknown=0, NotChecked=0, Total=9120 [2018-10-10 15:35:53,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2018-10-10 15:35:53,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 190. [2018-10-10 15:35:53,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2018-10-10 15:35:53,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 191 transitions. [2018-10-10 15:35:53,528 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 191 transitions. Word has length 146 [2018-10-10 15:35:53,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:35:53,529 INFO L481 AbstractCegarLoop]: Abstraction has 190 states and 191 transitions. [2018-10-10 15:35:53,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-10-10 15:35:53,529 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 191 transitions. [2018-10-10 15:35:53,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-10-10 15:35:53,537 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:35:53,537 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:35:53,537 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:35:53,538 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:35:53,541 INFO L82 PathProgramCache]: Analyzing trace with hash -989667046, now seen corresponding path program 2 times [2018-10-10 15:35:53,542 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:35:53,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:35:56,146 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 6 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:35:56,146 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:35:56,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2018-10-10 15:35:56,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-10-10 15:35:56,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-10-10 15:35:56,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1103, Unknown=0, NotChecked=0, Total=1190 [2018-10-10 15:35:56,148 INFO L87 Difference]: Start difference. First operand 190 states and 191 transitions. Second operand 35 states. [2018-10-10 15:35:56,552 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-10-10 15:35:58,073 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2018-10-10 15:35:58,229 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2018-10-10 15:35:58,535 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2018-10-10 15:35:58,801 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2018-10-10 15:35:59,039 WARN L178 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2018-10-10 15:35:59,801 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2018-10-10 15:35:59,948 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2018-10-10 15:36:03,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:03,459 INFO L93 Difference]: Finished difference Result 349 states and 350 transitions. [2018-10-10 15:36:03,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-10-10 15:36:03,459 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 189 [2018-10-10 15:36:03,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:03,461 INFO L225 Difference]: With dead ends: 349 [2018-10-10 15:36:03,461 INFO L226 Difference]: Without dead ends: 261 [2018-10-10 15:36:03,464 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1899 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=719, Invalid=7471, Unknown=0, NotChecked=0, Total=8190 [2018-10-10 15:36:03,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2018-10-10 15:36:03,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 242. [2018-10-10 15:36:03,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2018-10-10 15:36:03,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 243 transitions. [2018-10-10 15:36:03,474 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 243 transitions. Word has length 189 [2018-10-10 15:36:03,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:03,475 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 243 transitions. [2018-10-10 15:36:03,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-10-10 15:36:03,475 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 243 transitions. [2018-10-10 15:36:03,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-10-10 15:36:03,479 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:03,479 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-10 15:36:03,479 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:03,479 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:03,480 INFO L82 PathProgramCache]: Analyzing trace with hash -31772806, now seen corresponding path program 3 times [2018-10-10 15:36:03,480 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:04,439 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-10 15:36:07,629 WARN L178 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2018-10-10 15:36:11,226 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 24 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:36:11,227 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:36:11,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [79] total 79 [2018-10-10 15:36:11,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 79 states [2018-10-10 15:36:11,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2018-10-10 15:36:11,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=5935, Unknown=0, NotChecked=0, Total=6162 [2018-10-10 15:36:11,230 INFO L87 Difference]: Start difference. First operand 242 states and 243 transitions. Second operand 79 states. [2018-10-10 15:36:13,337 WARN L178 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 18 [2018-10-10 15:36:18,237 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2018-10-10 15:36:18,624 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2018-10-10 15:36:19,689 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2018-10-10 15:36:20,087 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2018-10-10 15:36:20,369 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2018-10-10 15:36:20,691 WARN L178 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2018-10-10 15:36:21,045 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2018-10-10 15:36:21,421 WARN L178 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2018-10-10 15:36:21,867 WARN L178 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 94 [2018-10-10 15:36:22,283 WARN L178 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 97 [2018-10-10 15:36:22,733 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 68 [2018-10-10 15:36:23,138 WARN L178 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 88 [2018-10-10 15:36:23,526 WARN L178 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 90 [2018-10-10 15:36:23,848 WARN L178 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 83 [2018-10-10 15:36:24,432 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2018-10-10 15:36:24,693 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2018-10-10 15:36:25,049 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 61 [2018-10-10 15:36:25,386 WARN L178 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 77 [2018-10-10 15:36:25,794 WARN L178 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 90 [2018-10-10 15:36:26,176 WARN L178 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 92 [2018-10-10 15:36:26,561 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 69 [2018-10-10 15:36:26,965 WARN L178 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 95 [2018-10-10 15:36:27,350 WARN L178 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 101 [2018-10-10 15:36:27,879 WARN L178 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 105 [2018-10-10 15:36:28,456 WARN L178 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 128 [2018-10-10 15:36:28,831 WARN L178 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 98 [2018-10-10 15:36:29,454 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2018-10-10 15:36:29,763 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2018-10-10 15:36:30,485 WARN L178 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 149 [2018-10-10 15:36:31,309 WARN L178 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 170 [2018-10-10 15:36:31,574 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2018-10-10 15:36:32,363 WARN L178 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 181 [2018-10-10 15:36:33,032 WARN L178 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 160 [2018-10-10 15:36:33,627 WARN L178 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 144 [2018-10-10 15:36:34,231 WARN L178 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 122 [2018-10-10 15:36:34,748 WARN L178 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 128 [2018-10-10 15:36:35,619 WARN L178 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 133 [2018-10-10 15:36:36,208 WARN L178 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 138 [2018-10-10 15:36:36,776 WARN L178 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 144 [2018-10-10 15:36:40,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:40,408 INFO L93 Difference]: Finished difference Result 304 states and 305 transitions. [2018-10-10 15:36:40,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2018-10-10 15:36:40,409 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 241 [2018-10-10 15:36:40,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:40,412 INFO L225 Difference]: With dead ends: 304 [2018-10-10 15:36:40,412 INFO L226 Difference]: Without dead ends: 304 [2018-10-10 15:36:40,421 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8029 ImplicationChecksByTransitivity, 28.3s TimeCoverageRelationStatistics Valid=2599, Invalid=29621, Unknown=0, NotChecked=0, Total=32220 [2018-10-10 15:36:40,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2018-10-10 15:36:40,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 285. [2018-10-10 15:36:40,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2018-10-10 15:36:40,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 286 transitions. [2018-10-10 15:36:40,430 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 286 transitions. Word has length 241 [2018-10-10 15:36:40,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:40,431 INFO L481 AbstractCegarLoop]: Abstraction has 285 states and 286 transitions. [2018-10-10 15:36:40,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 79 states. [2018-10-10 15:36:40,431 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 286 transitions. [2018-10-10 15:36:40,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2018-10-10 15:36:40,435 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:40,435 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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] [2018-10-10 15:36:40,436 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:40,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:40,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1022363312, now seen corresponding path program 4 times [2018-10-10 15:36:40,437 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:41,942 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2018-10-10 15:36:46,106 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:36:46,107 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:36:46,107 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [68] total 68 [2018-10-10 15:36:46,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 68 states [2018-10-10 15:36:46,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2018-10-10 15:36:46,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=4362, Unknown=0, NotChecked=0, Total=4556 [2018-10-10 15:36:46,110 INFO L87 Difference]: Start difference. First operand 285 states and 286 transitions. Second operand 68 states. [2018-10-10 15:36:49,273 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2018-10-10 15:36:49,509 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2018-10-10 15:36:50,025 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 51 [2018-10-10 15:36:50,339 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2018-10-10 15:36:51,234 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 57 [2018-10-10 15:36:51,416 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 52 [2018-10-10 15:36:51,980 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 57 [2018-10-10 15:36:52,172 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2018-10-10 15:36:52,405 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2018-10-10 15:36:52,801 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2018-10-10 15:36:53,059 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2018-10-10 15:36:53,594 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 58 [2018-10-10 15:36:53,855 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2018-10-10 15:36:54,178 WARN L178 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2018-10-10 15:36:54,399 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2018-10-10 15:36:54,966 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2018-10-10 15:36:55,344 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2018-10-10 15:36:55,583 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2018-10-10 15:36:55,835 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2018-10-10 15:36:56,193 WARN L178 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2018-10-10 15:36:56,569 WARN L178 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2018-10-10 15:36:56,901 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2018-10-10 15:36:57,244 WARN L178 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2018-10-10 15:36:57,549 WARN L178 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2018-10-10 15:36:57,899 WARN L178 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 92 [2018-10-10 15:36:58,300 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2018-10-10 15:36:58,630 WARN L178 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 83 [2018-10-10 15:36:58,935 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2018-10-10 15:36:59,173 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2018-10-10 15:36:59,433 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 77 [2018-10-10 15:36:59,681 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2018-10-10 15:37:00,207 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2018-10-10 15:37:00,521 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2018-10-10 15:37:01,129 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2018-10-10 15:37:01,662 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2018-10-10 15:37:02,460 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 75 [2018-10-10 15:37:08,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:37:08,041 INFO L93 Difference]: Finished difference Result 487 states and 488 transitions. [2018-10-10 15:37:08,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2018-10-10 15:37:08,042 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 284 [2018-10-10 15:37:08,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:37:08,045 INFO L225 Difference]: With dead ends: 487 [2018-10-10 15:37:08,046 INFO L226 Difference]: Without dead ends: 356 [2018-10-10 15:37:08,049 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 4 SyntacticMatches, 8 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6987 ImplicationChecksByTransitivity, 18.2s TimeCoverageRelationStatistics Valid=1630, Invalid=26092, Unknown=0, NotChecked=0, Total=27722 [2018-10-10 15:37:08,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-10-10 15:37:08,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 337. [2018-10-10 15:37:08,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2018-10-10 15:37:08,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 338 transitions. [2018-10-10 15:37:08,057 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 338 transitions. Word has length 284 [2018-10-10 15:37:08,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:37:08,058 INFO L481 AbstractCegarLoop]: Abstraction has 337 states and 338 transitions. [2018-10-10 15:37:08,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 68 states. [2018-10-10 15:37:08,058 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 338 transitions. [2018-10-10 15:37:08,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2018-10-10 15:37:08,062 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:37:08,062 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-10 15:37:08,063 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:37:08,063 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:37:08,063 INFO L82 PathProgramCache]: Analyzing trace with hash -494346512, now seen corresponding path program 5 times [2018-10-10 15:37:08,064 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:37:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:37:09,081 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-10 15:37:09,311 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-10 15:37:12,486 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2018-10-10 15:37:15,241 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2018-10-10 15:37:15,743 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2018-10-10 15:37:16,026 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2018-10-10 15:37:18,064 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2018-10-10 15:37:20,985 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2018-10-10 15:37:27,865 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 46 proven. 257 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:37:27,865 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:37:27,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [126] total 126 [2018-10-10 15:37:27,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 126 states [2018-10-10 15:37:27,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2018-10-10 15:37:27,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=422, Invalid=15328, Unknown=0, NotChecked=0, Total=15750 [2018-10-10 15:37:27,868 INFO L87 Difference]: Start difference. First operand 337 states and 338 transitions. Second operand 126 states. [2018-10-10 15:37:38,066 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2018-10-10 15:37:38,391 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2018-10-10 15:37:38,619 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2018-10-10 15:37:40,143 WARN L178 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2018-10-10 15:37:40,726 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2018-10-10 15:37:41,121 WARN L178 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2018-10-10 15:37:41,640 WARN L178 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2018-10-10 15:37:42,177 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2018-10-10 15:37:42,724 WARN L178 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 95 [2018-10-10 15:37:43,285 WARN L178 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 100 [2018-10-10 15:37:43,874 WARN L178 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 105 [2018-10-10 15:37:44,600 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2018-10-10 15:37:45,148 WARN L178 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 95 [2018-10-10 15:37:45,698 WARN L178 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 95 [2018-10-10 15:37:46,125 WARN L178 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 88 [2018-10-10 15:37:47,068 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2018-10-10 15:37:47,844 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2018-10-10 15:37:48,293 WARN L178 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2018-10-10 15:37:48,848 WARN L178 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 100 [2018-10-10 15:37:49,400 WARN L178 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 102 [2018-10-10 15:37:49,964 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2018-10-10 15:37:50,509 WARN L178 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 105 [2018-10-10 15:37:51,063 WARN L178 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 108 [2018-10-10 15:37:51,742 WARN L178 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 114 [2018-10-10 15:37:52,270 WARN L178 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 109 [2018-10-10 15:37:52,821 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2018-10-10 15:37:53,302 WARN L178 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2018-10-10 15:37:53,689 WARN L178 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2018-10-10 15:37:54,179 WARN L178 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2018-10-10 15:37:54,817 WARN L178 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 94 [2018-10-10 15:37:55,256 WARN L178 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 79 [2018-10-10 15:37:55,834 WARN L178 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 111 [2018-10-10 15:37:56,698 WARN L178 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 144 [2018-10-10 15:37:57,599 WARN L178 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 144 [2018-10-10 15:37:58,384 WARN L178 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 102 [2018-10-10 15:37:59,508 WARN L178 SmtUtils]: Spent 751.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 167 [2018-10-10 15:38:00,627 WARN L178 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 171 [2018-10-10 15:38:01,849 WARN L178 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 179 [2018-10-10 15:38:02,947 WARN L178 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 112 [2018-10-10 15:38:03,994 WARN L178 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 154 [2018-10-10 15:38:05,087 WARN L178 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 160 [2018-10-10 15:38:06,027 WARN L178 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 153 [2018-10-10 15:38:06,580 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2018-10-10 15:38:07,021 WARN L178 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2018-10-10 15:38:07,383 WARN L178 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2018-10-10 15:38:07,822 WARN L178 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2018-10-10 15:38:08,369 WARN L178 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2018-10-10 15:38:09,164 WARN L178 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 129 [2018-10-10 15:38:10,222 WARN L178 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 153 [2018-10-10 15:38:11,321 WARN L178 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 153 [2018-10-10 15:38:12,150 WARN L178 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 101 [2018-10-10 15:38:13,170 WARN L178 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 156 [2018-10-10 15:38:14,261 WARN L178 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 164 [2018-10-10 15:38:15,546 WARN L178 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 172 [2018-10-10 15:38:17,165 WARN L178 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 309 DAG size of output: 214 [2018-10-10 15:38:18,257 WARN L178 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 167 [2018-10-10 15:38:18,700 WARN L178 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2018-10-10 15:38:19,213 WARN L178 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2018-10-10 15:38:19,901 WARN L178 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 106 [2018-10-10 15:38:20,524 WARN L178 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 108 [2018-10-10 15:38:21,182 WARN L178 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 106 [2018-10-10 15:38:23,248 WARN L178 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 353 DAG size of output: 258 [2018-10-10 15:38:25,789 WARN L178 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 395 DAG size of output: 300 [2018-10-10 15:38:26,512 WARN L178 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 117 [2018-10-10 15:38:29,199 WARN L178 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 366 DAG size of output: 322 [2018-10-10 15:38:31,307 WARN L178 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 324 DAG size of output: 280 [2018-10-10 15:38:33,116 WARN L178 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 293 DAG size of output: 248 [2018-10-10 15:38:34,729 WARN L178 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 251 DAG size of output: 206 [2018-10-10 15:38:36,151 WARN L178 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 264 DAG size of output: 216 [2018-10-10 15:38:38,380 WARN L178 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 277 DAG size of output: 226 [2018-10-10 15:38:40,047 WARN L178 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 288 DAG size of output: 232 [2018-10-10 15:38:41,703 WARN L178 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 301 DAG size of output: 242 [2018-10-10 15:38:42,033 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2018-10-10 15:38:42,402 WARN L178 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2018-10-10 15:38:42,716 WARN L178 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2018-10-10 15:38:43,276 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2018-10-10 15:38:43,673 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2018-10-10 15:38:44,057 WARN L178 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2018-10-10 15:38:44,776 WARN L178 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 108 [2018-10-10 15:38:45,346 WARN L178 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 129 [2018-10-10 15:38:45,791 WARN L178 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2018-10-10 15:38:46,072 WARN L178 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2018-10-10 15:38:46,346 WARN L178 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2018-10-10 15:38:46,623 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2018-10-10 15:38:46,887 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2018-10-10 15:38:47,167 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2018-10-10 15:38:47,546 WARN L178 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2018-10-10 15:38:48,011 WARN L178 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2018-10-10 15:38:48,415 WARN L178 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2018-10-10 15:38:48,609 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2018-10-10 15:38:48,880 WARN L178 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2018-10-10 15:38:49,080 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2018-10-10 15:38:50,146 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-10-10 15:38:52,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:38:52,449 INFO L93 Difference]: Finished difference Result 399 states and 400 transitions. [2018-10-10 15:38:52,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2018-10-10 15:38:52,449 INFO L78 Accepts]: Start accepts. Automaton has 126 states. Word has length 336 [2018-10-10 15:38:52,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:38:52,453 INFO L225 Difference]: With dead ends: 399 [2018-10-10 15:38:52,453 INFO L226 Difference]: Without dead ends: 399 [2018-10-10 15:38:52,458 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 286 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23037 ImplicationChecksByTransitivity, 86.3s TimeCoverageRelationStatistics Valid=5846, Invalid=76810, Unknown=0, NotChecked=0, Total=82656 [2018-10-10 15:38:52,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2018-10-10 15:38:52,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 380. [2018-10-10 15:38:52,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-10-10 15:38:52,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 381 transitions. [2018-10-10 15:38:52,466 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 381 transitions. Word has length 336 [2018-10-10 15:38:52,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:38:52,466 INFO L481 AbstractCegarLoop]: Abstraction has 380 states and 381 transitions. [2018-10-10 15:38:52,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 126 states. [2018-10-10 15:38:52,467 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 381 transitions. [2018-10-10 15:38:52,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2018-10-10 15:38:52,469 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:38:52,469 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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] [2018-10-10 15:38:52,470 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:38:52,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:38:52,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1316783078, now seen corresponding path program 6 times [2018-10-10 15:38:52,471 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:38:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:39:01,450 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 12 proven. 424 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:39:01,450 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:39:01,450 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [83] total 83 [2018-10-10 15:39:01,451 INFO L460 AbstractCegarLoop]: Interpolant automaton has 83 states [2018-10-10 15:39:01,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2018-10-10 15:39:01,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=6588, Unknown=0, NotChecked=0, Total=6806 [2018-10-10 15:39:01,452 INFO L87 Difference]: Start difference. First operand 380 states and 381 transitions. Second operand 83 states. [2018-10-10 15:39:05,927 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2018-10-10 15:39:06,170 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2018-10-10 15:39:07,210 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2018-10-10 15:39:07,494 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 64 [2018-10-10 15:39:08,158 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2018-10-10 15:39:08,502 WARN L178 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2018-10-10 15:39:08,729 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2018-10-10 15:39:08,999 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2018-10-10 15:39:09,555 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2018-10-10 15:39:09,776 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2018-10-10 15:39:10,480 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2018-10-10 15:39:10,761 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 63 [2018-10-10 15:39:11,423 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2018-10-10 15:39:11,685 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2018-10-10 15:39:11,982 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2018-10-10 15:39:12,212 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2018-10-10 15:39:12,929 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2018-10-10 15:39:13,321 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2018-10-10 15:39:13,631 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2018-10-10 15:39:13,903 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2018-10-10 15:39:14,292 WARN L178 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2018-10-10 15:39:14,691 WARN L178 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2018-10-10 15:39:15,125 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2018-10-10 15:39:15,536 WARN L178 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2018-10-10 15:39:15,919 WARN L178 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2018-10-10 15:39:16,351 WARN L178 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 102 [2018-10-10 15:39:16,840 WARN L178 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 108 [2018-10-10 15:39:17,330 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 67 [2018-10-10 15:39:17,754 WARN L178 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 93 [2018-10-10 15:39:18,201 WARN L178 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 98 [2018-10-10 15:39:18,600 WARN L178 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 93 [2018-10-10 15:39:19,681 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2018-10-10 15:39:19,971 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2018-10-10 15:39:20,596 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2018-10-10 15:39:20,960 WARN L178 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2018-10-10 15:39:21,400 WARN L178 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 105 [2018-10-10 15:39:21,733 WARN L178 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 100 [2018-10-10 15:39:22,430 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2018-10-10 15:39:22,680 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2018-10-10 15:39:23,163 WARN L178 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2018-10-10 15:39:23,442 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2018-10-10 15:39:23,895 WARN L178 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2018-10-10 15:39:24,405 WARN L178 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 118 [2018-10-10 15:39:24,936 WARN L178 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 120 [2018-10-10 15:39:25,422 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2018-10-10 15:39:25,933 WARN L178 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 119 [2018-10-10 15:39:26,411 WARN L178 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2018-10-10 15:39:26,967 WARN L178 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 130 [2018-10-10 15:39:27,594 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 80 [2018-10-10 15:39:28,088 WARN L178 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 110 [2018-10-10 15:39:28,539 WARN L178 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 105 [2018-10-10 15:39:28,984 WARN L178 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 101 [2018-10-10 15:39:29,427 WARN L178 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 106 [2018-10-10 15:39:29,808 WARN L178 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 108 [2018-10-10 15:39:30,603 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 82 [2018-10-10 15:39:30,972 WARN L178 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 84 [2018-10-10 15:39:31,845 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 101 [2018-10-10 15:39:32,590 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 96 [2018-10-10 15:39:32,916 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 92 [2018-10-10 15:39:33,357 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 97 [2018-10-10 15:39:33,687 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 99 [2018-10-10 15:39:41,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:39:41,642 INFO L93 Difference]: Finished difference Result 625 states and 626 transitions. [2018-10-10 15:39:41,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2018-10-10 15:39:41,643 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 379 [2018-10-10 15:39:41,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:39:41,646 INFO L225 Difference]: With dead ends: 625 [2018-10-10 15:39:41,646 INFO L226 Difference]: Without dead ends: 451 [2018-10-10 15:39:41,648 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 2 SyntacticMatches, 7 SemanticMatches, 206 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10618 ImplicationChecksByTransitivity, 31.8s TimeCoverageRelationStatistics Valid=1655, Invalid=41401, Unknown=0, NotChecked=0, Total=43056 [2018-10-10 15:39:41,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2018-10-10 15:39:41,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 432. [2018-10-10 15:39:41,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2018-10-10 15:39:41,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 433 transitions. [2018-10-10 15:39:41,656 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 433 transitions. Word has length 379 [2018-10-10 15:39:41,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:39:41,656 INFO L481 AbstractCegarLoop]: Abstraction has 432 states and 433 transitions. [2018-10-10 15:39:41,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 83 states. [2018-10-10 15:39:41,657 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 433 transitions. [2018-10-10 15:39:41,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2018-10-10 15:39:41,659 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:39:41,660 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-10 15:39:41,660 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:39:41,660 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:39:41,660 INFO L82 PathProgramCache]: Analyzing trace with hash -873274758, now seen corresponding path program 7 times [2018-10-10 15:39:41,661 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:39:41,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:39:43,252 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-10 15:39:47,563 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2018-10-10 15:39:47,939 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2018-10-10 15:39:48,347 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2018-10-10 15:39:49,565 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2018-10-10 15:39:51,868 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2018-10-10 15:40:07,717 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 100 proven. 494 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:40:07,717 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:40:07,728 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [154] total 154 [2018-10-10 15:40:07,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 154 states [2018-10-10 15:40:07,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 154 interpolants. [2018-10-10 15:40:07,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=498, Invalid=23064, Unknown=0, NotChecked=0, Total=23562 [2018-10-10 15:40:07,729 INFO L87 Difference]: Start difference. First operand 432 states and 433 transitions. Second operand 154 states. [2018-10-10 15:40:19,341 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 54 [2018-10-10 15:40:19,703 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2018-10-10 15:40:20,125 WARN L178 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 60 [2018-10-10 15:40:20,393 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 53 [2018-10-10 15:40:22,401 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2018-10-10 15:40:22,804 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2018-10-10 15:40:23,238 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2018-10-10 15:40:24,445 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 70 [2018-10-10 15:40:24,990 WARN L178 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 77 [2018-10-10 15:40:25,571 WARN L178 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 78 [2018-10-10 15:40:26,366 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2018-10-10 15:40:27,029 WARN L178 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 79 [2018-10-10 15:40:27,393 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 72 [2018-10-10 15:40:28,432 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 54 [2018-10-10 15:40:28,751 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 56 [2018-10-10 15:40:29,412 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 63 [2018-10-10 15:40:29,993 WARN L178 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 83 [2018-10-10 15:40:30,661 WARN L178 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 94 [2018-10-10 15:40:31,306 WARN L178 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 96 [2018-10-10 15:40:32,033 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 70 [2018-10-10 15:40:32,737 WARN L178 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 100 [2018-10-10 15:40:33,388 WARN L178 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 97 [2018-10-10 15:40:34,101 WARN L178 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 101 [2018-10-10 15:40:34,679 WARN L178 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 94 [2018-10-10 15:40:35,354 WARN L178 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2018-10-10 15:40:35,893 WARN L178 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 73 [2018-10-10 15:40:36,243 WARN L178 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 75 [2018-10-10 15:40:36,967 WARN L178 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 84 [2018-10-10 15:40:37,394 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 68 [2018-10-10 15:40:37,943 WARN L178 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 97 [2018-10-10 15:40:38,574 WARN L178 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 105 [2018-10-10 15:40:39,237 WARN L178 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 107 [2018-10-10 15:40:39,943 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2018-10-10 15:40:40,736 WARN L178 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 106 [2018-10-10 15:40:41,515 WARN L178 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 110 [2018-10-10 15:40:42,298 WARN L178 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 113 [2018-10-10 15:40:43,233 WARN L178 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 76 [2018-10-10 15:40:44,181 WARN L178 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 115 [2018-10-10 15:40:44,828 WARN L178 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 108 [2018-10-10 15:40:45,221 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2018-10-10 15:40:45,753 WARN L178 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 66 [2018-10-10 15:40:46,383 WARN L178 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 74 [2018-10-10 15:40:46,909 WARN L178 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 76 [2018-10-10 15:40:47,774 WARN L178 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 83 [2018-10-10 15:40:48,760 WARN L178 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 120 [2018-10-10 15:40:49,863 WARN L178 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 137 [2018-10-10 15:40:51,006 WARN L178 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 139 [2018-10-10 15:40:51,926 WARN L178 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 93 [2018-10-10 15:40:53,058 WARN L178 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 144 [2018-10-10 15:40:54,077 WARN L178 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 289 DAG size of output: 146 [2018-10-10 15:40:55,188 WARN L178 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 302 DAG size of output: 152 [2018-10-10 15:40:56,225 WARN L178 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 295 DAG size of output: 145 [2018-10-10 15:40:56,683 WARN L178 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 86 [2018-10-10 15:40:57,241 WARN L178 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 90 [2018-10-10 15:40:57,978 WARN L178 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 107 [2018-10-10 15:40:58,570 WARN L178 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 109 [2018-10-10 15:40:59,582 WARN L178 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 120 [2018-10-10 15:41:00,142 WARN L178 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 90 [2018-10-10 15:41:01,032 WARN L178 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 137 [2018-10-10 15:41:02,032 WARN L178 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 145 [2018-10-10 15:41:03,027 WARN L178 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 147 [2018-10-10 15:41:03,873 WARN L178 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 88 [2018-10-10 15:41:04,968 WARN L178 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 143 [2018-10-10 15:41:06,128 WARN L178 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 146 [2018-10-10 15:41:07,317 WARN L178 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 151 [2018-10-10 15:41:08,448 WARN L178 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 96 [2018-10-10 15:41:09,891 WARN L178 SmtUtils]: Spent 820.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 163 [2018-10-10 15:41:11,033 WARN L178 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 156 [2018-10-10 15:41:11,660 WARN L178 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 86 [2018-10-10 15:41:12,357 WARN L178 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 90 [2018-10-10 15:41:13,232 WARN L178 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 101 [2018-10-10 15:41:14,026 WARN L178 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 103 [2018-10-10 15:41:15,181 WARN L178 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 112 [2018-10-10 15:41:16,838 WARN L178 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 352 DAG size of output: 176 [2018-10-10 15:41:18,687 WARN L178 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 426 DAG size of output: 201 [2018-10-10 15:41:20,579 WARN L178 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 428 DAG size of output: 203 [2018-10-10 15:41:21,864 WARN L178 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 129 [2018-10-10 15:41:23,712 WARN L178 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 414 DAG size of output: 208 [2018-10-10 15:41:25,383 WARN L178 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 412 DAG size of output: 209 [2018-10-10 15:41:27,348 WARN L178 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 427 DAG size of output: 217 [2018-10-10 15:41:29,686 WARN L178 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 499 DAG size of output: 281 [2018-10-10 15:41:31,310 WARN L178 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 420 DAG size of output: 210 [2018-10-10 15:41:32,069 WARN L178 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 109 [2018-10-10 15:41:32,884 WARN L178 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 113 [2018-10-10 15:41:33,929 WARN L178 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 132 [2018-10-10 15:41:34,861 WARN L178 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 134 [2018-10-10 15:41:37,842 WARN L178 SmtUtils]: Spent 2.44 s on a formula simplification. DAG size of input: 575 DAG size of output: 347 [2018-10-10 15:41:41,354 WARN L178 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 645 DAG size of output: 409 [2018-10-10 15:41:42,457 WARN L178 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 145 [2018-10-10 15:41:46,083 WARN L178 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 562 DAG size of output: 441 [2018-10-10 15:41:49,134 WARN L178 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 492 DAG size of output: 379 [2018-10-10 15:41:51,703 WARN L178 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 437 DAG size of output: 326 [2018-10-10 15:41:54,096 WARN L178 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 367 DAG size of output: 264 [2018-10-10 15:41:56,230 WARN L178 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 382 DAG size of output: 273 [2018-10-10 15:41:59,379 WARN L178 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 397 DAG size of output: 282 [2018-10-10 15:42:01,907 WARN L178 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 412 DAG size of output: 291 [2018-10-10 15:42:04,631 WARN L178 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 427 DAG size of output: 301 [2018-10-10 15:42:05,237 WARN L178 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 92 [2018-10-10 15:42:05,938 WARN L178 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 103 [2018-10-10 15:42:06,409 WARN L178 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 91 [2018-10-10 15:42:07,334 WARN L178 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 83 [2018-10-10 15:42:08,327 WARN L178 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 89 [2018-10-10 15:42:09,226 WARN L178 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 141 [2018-10-10 15:42:10,712 WARN L178 SmtUtils]: Spent 783.00 ms on a formula simplification. DAG size of input: 312 DAG size of output: 187 [2018-10-10 15:42:11,982 WARN L178 SmtUtils]: Spent 940.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 229 [2018-10-10 15:42:13,232 WARN L178 SmtUtils]: Spent 835.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 225 [2018-10-10 15:42:14,089 WARN L178 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 183 [2018-10-10 15:42:14,883 WARN L178 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 148 [2018-10-10 15:42:15,553 WARN L178 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 104 [2018-10-10 15:42:16,188 WARN L178 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 111 [2018-10-10 15:42:17,181 WARN L178 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 120 [2018-10-10 15:42:18,178 WARN L178 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 127 [2018-10-10 15:42:19,090 WARN L178 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 135 [2018-10-10 15:42:19,412 WARN L178 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2018-10-10 15:42:19,814 WARN L178 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2018-10-10 15:42:20,127 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2018-10-10 15:42:21,436 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2018-10-10 15:42:21,860 WARN L178 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 55 [2018-10-10 15:42:22,379 WARN L178 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 93 [2018-10-10 15:42:23,215 WARN L178 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 118 [2018-10-10 15:42:23,966 WARN L178 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 141 [2018-10-10 15:42:24,509 WARN L178 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 133 [2018-10-10 15:42:24,979 WARN L178 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 110 [2018-10-10 15:42:25,414 WARN L178 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2018-10-10 15:42:25,787 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 68 [2018-10-10 15:42:26,151 WARN L178 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2018-10-10 15:42:26,639 WARN L178 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 78 [2018-10-10 15:42:27,089 WARN L178 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 84 [2018-10-10 15:42:27,572 WARN L178 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 89 [2018-10-10 15:42:28,193 WARN L178 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2018-10-10 15:42:29,465 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 56 [2018-10-10 15:42:29,771 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2018-10-10 15:42:31,507 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2018-10-10 15:42:32,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:42:32,545 INFO L93 Difference]: Finished difference Result 494 states and 495 transitions. [2018-10-10 15:42:32,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2018-10-10 15:42:32,545 INFO L78 Accepts]: Start accepts. Automaton has 154 states. Word has length 431 [2018-10-10 15:42:32,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:42:32,548 INFO L225 Difference]: With dead ends: 494 [2018-10-10 15:42:32,548 INFO L226 Difference]: Without dead ends: 494 [2018-10-10 15:42:32,551 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 340 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32176 ImplicationChecksByTransitivity, 138.8s TimeCoverageRelationStatistics Valid=8152, Invalid=108470, Unknown=0, NotChecked=0, Total=116622 [2018-10-10 15:42:32,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2018-10-10 15:42:32,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 475. [2018-10-10 15:42:32,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2018-10-10 15:42:32,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 476 transitions. [2018-10-10 15:42:32,560 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 476 transitions. Word has length 431 [2018-10-10 15:42:32,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:42:32,561 INFO L481 AbstractCegarLoop]: Abstraction has 475 states and 476 transitions. [2018-10-10 15:42:32,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 154 states. [2018-10-10 15:42:32,561 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 476 transitions. [2018-10-10 15:42:32,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2018-10-10 15:42:32,564 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:42:32,565 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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] [2018-10-10 15:42:32,565 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:42:32,565 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:42:32,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1568250288, now seen corresponding path program 8 times [2018-10-10 15:42:32,566 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:42:32,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:42:34,453 WARN L178 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 11 [2018-10-10 15:42:34,913 WARN L178 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2018-10-10 15:42:36,695 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 28 [2018-10-10 15:42:36,883 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 30 [2018-10-10 15:42:38,307 WARN L178 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 36 [2018-10-10 15:42:38,544 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 33 [2018-10-10 15:42:40,140 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 34 [2018-10-10 15:42:40,398 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 37 [2018-10-10 15:42:40,642 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 37 [2018-10-10 15:42:41,593 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 37 [2018-10-10 15:42:41,888 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 37 [2018-10-10 15:42:42,179 WARN L178 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 39 [2018-10-10 15:42:42,455 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2018-10-10 15:42:42,726 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2018-10-10 15:42:43,047 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 40 [2018-10-10 15:42:43,402 WARN L178 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 39 [2018-10-10 15:42:43,913 WARN L178 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 52 [2018-10-10 15:42:44,470 WARN L178 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 72 [2018-10-10 15:42:44,994 WARN L178 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 70 [2018-10-10 15:42:45,514 WARN L178 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 73 [2018-10-10 15:42:46,105 WARN L178 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 73 [2018-10-10 15:42:46,598 WARN L178 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2018-10-10 15:42:47,125 WARN L178 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2018-10-10 15:42:47,679 WARN L178 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 66 [2018-10-10 15:42:48,173 WARN L178 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 62 [2018-10-10 15:42:48,874 WARN L178 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 56 [2018-10-10 15:42:49,429 WARN L178 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 62 [2018-10-10 15:42:49,994 WARN L178 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 62 [2018-10-10 15:42:50,695 WARN L178 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2018-10-10 15:42:51,099 WARN L178 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2018-10-10 15:42:51,558 WARN L178 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 57 [2018-10-10 15:42:51,979 WARN L178 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 62 [2018-10-10 15:42:52,422 WARN L178 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2018-10-10 15:42:52,870 WARN L178 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 66 [2018-10-10 15:42:53,350 WARN L178 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2018-10-10 15:42:53,857 WARN L178 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2018-10-10 15:42:54,300 WARN L178 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2018-10-10 15:42:54,801 WARN L178 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2018-10-10 15:42:55,649 WARN L178 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 81 [2018-10-10 15:42:56,179 WARN L178 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 72 [2018-10-10 15:42:56,739 WARN L178 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2018-10-10 15:42:57,019 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2018-10-10 15:42:58,053 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2018-10-10 15:43:01,914 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2018-10-10 15:43:12,563 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 15 proven. 755 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:43:12,563 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:43:12,563 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [146] total 146 [2018-10-10 15:43:12,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 146 states [2018-10-10 15:43:12,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2018-10-10 15:43:12,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=640, Invalid=20530, Unknown=0, NotChecked=0, Total=21170 [2018-10-10 15:43:12,565 INFO L87 Difference]: Start difference. First operand 475 states and 476 transitions. Second operand 146 states. [2018-10-10 15:43:16,455 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 45 [2018-10-10 15:43:16,868 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 53 [2018-10-10 15:43:17,270 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 50 [2018-10-10 15:43:19,325 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 56 [2018-10-10 15:43:19,761 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 58 [2018-10-10 15:43:20,043 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 53 [2018-10-10 15:43:22,727 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 57 [2018-10-10 15:43:24,057 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 52 [2018-10-10 15:43:24,528 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 49 [2018-10-10 15:43:24,929 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 51 [2018-10-10 15:43:26,017 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 53 [2018-10-10 15:43:26,320 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 48 [2018-10-10 15:43:28,164 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2018-10-10 15:43:28,625 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2018-10-10 15:43:29,113 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2018-10-10 15:43:30,283 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 63 [2018-10-10 15:43:31,006 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2018-10-10 15:43:31,267 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2018-10-10 15:43:32,794 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2018-10-10 15:43:33,455 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2018-10-10 15:43:33,851 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2018-10-10 15:43:34,258 WARN L178 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2018-10-10 15:43:35,349 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 67 [2018-10-10 15:43:35,791 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 74 [2018-10-10 15:43:36,231 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 73 [2018-10-10 15:43:36,667 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 71 [2018-10-10 15:43:37,860 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 75 [2018-10-10 15:43:38,204 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 70 [2018-10-10 15:43:38,684 WARN L178 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2018-10-10 15:43:39,199 WARN L178 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2018-10-10 15:43:39,845 WARN L178 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 101 [2018-10-10 15:43:40,346 WARN L178 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 103 [2018-10-10 15:43:41,005 WARN L178 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 100 [2018-10-10 15:43:41,998 WARN L178 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 123 [2018-10-10 15:43:42,826 WARN L178 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 128 [2018-10-10 15:43:43,674 WARN L178 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 127 [2018-10-10 15:43:45,166 WARN L178 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 87 [2018-10-10 15:43:45,697 WARN L178 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 94 [2018-10-10 15:43:46,105 WARN L178 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 89 [2018-10-10 15:43:46,680 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 62 [2018-10-10 15:43:47,076 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 73 [2018-10-10 15:43:47,382 WARN L178 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 75 [2018-10-10 15:43:47,844 WARN L178 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 72 [2018-10-10 15:43:48,468 WARN L178 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 81 [2018-10-10 15:43:48,867 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2018-10-10 15:43:49,330 WARN L178 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2018-10-10 15:43:49,894 WARN L178 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 96 [2018-10-10 15:43:50,517 WARN L178 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 96 [2018-10-10 15:43:51,189 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2018-10-10 15:43:51,793 WARN L178 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 107 [2018-10-10 15:43:52,412 WARN L178 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 126 [2018-10-10 15:43:53,155 WARN L178 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 134 [2018-10-10 15:43:53,920 WARN L178 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 137 [2018-10-10 15:43:54,782 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 83 [2018-10-10 15:43:56,055 WARN L178 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 154 [2018-10-10 15:43:56,975 WARN L178 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 149 [2018-10-10 15:43:57,352 WARN L178 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92 [2018-10-10 15:43:57,837 WARN L178 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 99 [2018-10-10 15:43:58,438 WARN L178 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 115 [2018-10-10 15:43:58,940 WARN L178 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 117 [2018-10-10 15:44:00,298 WARN L178 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 124 DAG size of output: 115 [2018-10-10 15:44:01,414 WARN L178 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 160 [2018-10-10 15:44:02,323 WARN L178 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 165 [2018-10-10 15:44:03,433 WARN L178 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 163 [2018-10-10 15:44:04,725 WARN L178 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 114 [2018-10-10 15:44:05,674 WARN L178 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 169 [2018-10-10 15:44:07,120 WARN L178 SmtUtils]: Spent 979.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 187 [2018-10-10 15:44:08,379 WARN L178 SmtUtils]: Spent 929.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 182 [2018-10-10 15:44:08,909 WARN L178 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 115 [2018-10-10 15:44:09,833 WARN L178 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 131 [2018-10-10 15:44:11,004 WARN L178 SmtUtils]: Spent 875.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 144 [2018-10-10 15:44:12,016 WARN L178 SmtUtils]: Spent 803.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 146 [2018-10-10 15:44:13,207 WARN L178 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 144 [2018-10-10 15:44:14,662 WARN L178 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 156 [2018-10-10 15:44:15,509 WARN L178 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 97 [2018-10-10 15:44:16,586 WARN L178 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 144 [2018-10-10 15:44:18,072 WARN L178 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 230 DAG size of output: 200 [2018-10-10 15:44:19,559 WARN L178 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 232 DAG size of output: 202 [2018-10-10 15:44:20,576 WARN L178 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 129 [2018-10-10 15:44:21,628 WARN L178 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 200 [2018-10-10 15:44:22,413 WARN L178 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 151 [2018-10-10 15:44:23,273 WARN L178 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 158 [2018-10-10 15:44:24,279 WARN L178 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2018-10-10 15:44:25,047 WARN L178 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 140 [2018-10-10 15:44:25,876 WARN L178 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 135 [2018-10-10 15:44:26,647 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 103