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/sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:53:25,680 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:53:25,682 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:53:25,694 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:53:25,694 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:53:25,695 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:53:25,696 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:53:25,698 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:53:25,700 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:53:25,700 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:53:25,701 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:53:25,701 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:53:25,702 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:53:25,703 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:53:25,704 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:53:25,705 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:53:25,706 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:53:25,708 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:53:25,710 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:53:25,711 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:53:25,713 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:53:25,714 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:53:25,718 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 16:53:25,719 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 16:53:25,719 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 16:53:25,724 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 16:53:25,725 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 16:53:25,726 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 16:53:25,727 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 16:53:25,728 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 16:53:25,728 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 16:53:25,729 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-14 16:53:25,729 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-14 16:53:25,729 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-14 16:53:25,730 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-14 16:53:25,731 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-14 16:53:25,731 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-14 16:53:25,749 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:53:25,749 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:53:25,750 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:53:25,751 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:53:25,751 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:53:25,751 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:53:25,752 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:53:25,752 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:53:25,752 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:53:25,752 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:53:25,753 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:53:25,753 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:53:25,753 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:53:25,754 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:53:25,755 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:53:25,802 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:53:25,815 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:53:25,823 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:53:25,824 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:53:25,825 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:53:25,826 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl [2018-10-14 16:53:25,826 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl' [2018-10-14 16:53:25,918 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:53:25,920 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:53:25,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:53:25,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:53:25,921 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:53:25,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:25" (1/1) ... [2018-10-14 16:53:25,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:25" (1/1) ... [2018-10-14 16:53:25,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:25" (1/1) ... [2018-10-14 16:53:25,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:25" (1/1) ... [2018-10-14 16:53:26,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:25" (1/1) ... [2018-10-14 16:53:26,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:25" (1/1) ... [2018-10-14 16:53:26,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:25" (1/1) ... [2018-10-14 16:53:26,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:53:26,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:53:26,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:53:26,032 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:53:26,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:25" (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 [2018-10-14 16:53:26,120 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:53:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:53:26,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:53:27,652 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:53:27,653 INFO L202 PluginConnector]: Adding new model sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:53:27 BoogieIcfgContainer [2018-10-14 16:53:27,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:53:27,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:53:27,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:53:27,659 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:53:27,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:25" (1/2) ... [2018-10-14 16:53:27,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30bf0f3b and model type sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:53:27, skipping insertion in model container [2018-10-14 16:53:27,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:53:27" (2/2) ... [2018-10-14 16:53:27,663 INFO L112 eAbstractionObserver]: Analyzing ICFG sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl [2018-10-14 16:53:27,673 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:53:27,688 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:53:27,707 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:53:27,739 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:53:27,740 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:53:27,740 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:53:27,740 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:53:27,740 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:53:27,740 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:53:27,741 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:53:27,741 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:53:27,741 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:53:27,772 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states. [2018-10-14 16:53:27,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2018-10-14 16:53:27,799 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:53:27,801 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:53:27,802 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:53:27,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:53:27,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1038936915, now seen corresponding path program 1 times [2018-10-14 16:53:27,877 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:53:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:53:29,713 WARN L179 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 21 [2018-10-14 16:53:31,610 WARN L179 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2018-10-14 16:53:32,102 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2018-10-14 16:53:33,047 WARN L179 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2018-10-14 16:53:33,564 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2018-10-14 16:53:33,835 WARN L179 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2018-10-14 16:53:35,721 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2018-10-14 16:53:36,172 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2018-10-14 16:53:36,763 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2018-10-14 16:53:45,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:53:45,137 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:53:45,138 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [96] imperfect sequences [] total 96 [2018-10-14 16:53:45,143 INFO L460 AbstractCegarLoop]: Interpolant automaton has 96 states [2018-10-14 16:53:45,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2018-10-14 16:53:45,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=8831, Unknown=0, NotChecked=0, Total=9120 [2018-10-14 16:53:45,167 INFO L87 Difference]: Start difference. First operand 343 states. Second operand 96 states. [2018-10-14 16:53:51,458 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-10-14 16:53:54,128 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2018-10-14 16:53:54,506 WARN L179 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2018-10-14 16:53:55,572 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2018-10-14 16:53:56,918 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2018-10-14 16:53:57,258 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2018-10-14 16:53:57,611 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2018-10-14 16:53:57,996 WARN L179 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2018-10-14 16:53:58,637 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2018-10-14 16:53:59,143 WARN L179 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2018-10-14 16:53:59,528 WARN L179 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2018-10-14 16:53:59,942 WARN L179 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 78 [2018-10-14 16:54:00,289 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 76 [2018-10-14 16:54:00,706 WARN L179 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 80 [2018-10-14 16:54:01,126 WARN L179 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2018-10-14 16:54:01,416 WARN L179 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 74 [2018-10-14 16:54:01,886 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2018-10-14 16:54:02,256 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2018-10-14 16:54:02,554 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2018-10-14 16:54:03,120 WARN L179 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 78 [2018-10-14 16:54:03,637 WARN L179 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 90 [2018-10-14 16:54:04,314 WARN L179 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 104 [2018-10-14 16:54:04,904 WARN L179 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 109 [2018-10-14 16:54:05,570 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 82 [2018-10-14 16:54:06,039 WARN L179 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 96 [2018-10-14 16:54:07,158 WARN L179 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 111 [2018-10-14 16:54:07,760 WARN L179 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 126 [2018-10-14 16:54:08,758 WARN L179 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 141 [2018-10-14 16:54:09,859 WARN L179 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 126 [2018-10-14 16:54:10,552 WARN L179 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 132 [2018-10-14 16:54:11,531 WARN L179 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 138 [2018-10-14 16:54:12,254 WARN L179 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 144 [2018-10-14 16:54:13,086 WARN L179 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 148 [2018-10-14 16:54:14,028 WARN L179 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 155 [2018-10-14 16:54:14,917 WARN L179 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 110 [2018-10-14 16:54:15,622 WARN L179 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 136 [2018-10-14 16:54:16,148 WARN L179 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 124 [2018-10-14 16:54:17,081 WARN L179 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 125 [2018-10-14 16:54:17,829 WARN L179 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 143 [2018-10-14 16:54:18,702 WARN L179 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 121 [2018-10-14 16:54:19,476 WARN L179 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 156 [2018-10-14 16:54:20,804 WARN L179 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 160 [2018-10-14 16:54:21,811 WARN L179 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 179 [2018-10-14 16:54:22,587 WARN L179 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 145 [2018-10-14 16:54:23,481 WARN L179 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 166 [2018-10-14 16:54:24,541 WARN L179 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 129 [2018-10-14 16:54:25,408 WARN L179 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 170 [2018-10-14 16:54:25,994 WARN L179 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 143 [2018-10-14 16:54:26,557 WARN L179 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 112 [2018-10-14 16:54:27,048 WARN L179 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 114 [2018-10-14 16:54:27,713 WARN L179 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 117 [2018-10-14 16:54:28,232 WARN L179 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 108 [2018-10-14 16:54:28,746 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2018-10-14 16:54:29,252 WARN L179 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2018-10-14 16:54:29,634 WARN L179 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 72 [2018-10-14 16:54:30,294 WARN L179 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 79 [2018-10-14 16:54:30,840 WARN L179 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 86 [2018-10-14 16:54:31,526 WARN L179 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 111 [2018-10-14 16:54:32,254 WARN L179 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 118 [2018-10-14 16:54:32,838 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2018-10-14 16:54:33,264 WARN L179 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107 [2018-10-14 16:54:33,684 WARN L179 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 100 [2018-10-14 16:54:34,995 WARN L179 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 114 [2018-10-14 16:54:35,675 WARN L179 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 121 [2018-10-14 16:54:36,387 WARN L179 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 128 [2018-10-14 16:54:37,007 WARN L179 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 121 [2018-10-14 16:54:37,823 WARN L179 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 123 [2018-10-14 16:54:38,783 WARN L179 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 118 [2018-10-14 16:54:39,486 WARN L179 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 126 [2018-10-14 16:54:40,225 WARN L179 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 92 [2018-10-14 16:54:40,802 WARN L179 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 119 [2018-10-14 16:54:41,327 WARN L179 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 111 [2018-10-14 16:54:41,859 WARN L179 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 113 [2018-10-14 16:54:42,541 WARN L179 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 86 [2018-10-14 16:54:43,033 WARN L179 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 108 [2018-10-14 16:54:43,560 WARN L179 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 111 [2018-10-14 16:54:44,407 WARN L179 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 119 [2018-10-14 16:54:45,177 WARN L179 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 122 [2018-10-14 16:54:45,704 WARN L179 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 107 [2018-10-14 16:54:46,201 WARN L179 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 111 [2018-10-14 16:54:46,757 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2018-10-14 16:54:47,056 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2018-10-14 16:54:47,610 WARN L179 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2018-10-14 16:54:47,977 WARN L179 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2018-10-14 16:54:48,326 WARN L179 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 86 [2018-10-14 16:54:48,676 WARN L179 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2018-10-14 16:54:49,135 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2018-10-14 16:54:49,479 WARN L179 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2018-10-14 16:54:49,842 WARN L179 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2018-10-14 16:54:50,275 WARN L179 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2018-10-14 16:54:50,778 WARN L179 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2018-10-14 16:54:51,237 WARN L179 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2018-10-14 16:54:51,810 WARN L179 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2018-10-14 16:54:52,280 WARN L179 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 120 [2018-10-14 16:54:52,851 WARN L179 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 114 [2018-10-14 16:54:53,325 WARN L179 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 122 [2018-10-14 16:54:53,851 WARN L179 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 130 [2018-10-14 16:54:54,355 WARN L179 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 123 [2018-10-14 16:54:54,776 WARN L179 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 115 [2018-10-14 16:54:55,201 WARN L179 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2018-10-14 16:54:55,755 WARN L179 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2018-10-14 16:54:56,301 WARN L179 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2018-10-14 16:54:56,671 WARN L179 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2018-10-14 16:54:56,970 WARN L179 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2018-10-14 16:54:57,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:54:57,056 INFO L93 Difference]: Finished difference Result 352 states and 352 transitions. [2018-10-14 16:54:57,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2018-10-14 16:54:57,058 INFO L78 Accepts]: Start accepts. Automaton has 96 states. Word has length 332 [2018-10-14 16:54:57,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:54:57,079 INFO L225 Difference]: With dead ends: 352 [2018-10-14 16:54:57,079 INFO L226 Difference]: Without dead ends: 352 [2018-10-14 16:54:57,092 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 227 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11523 ImplicationChecksByTransitivity, 66.6s TimeCoverageRelationStatistics Valid=5093, Invalid=47119, Unknown=0, NotChecked=0, Total=52212 [2018-10-14 16:54:57,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2018-10-14 16:54:57,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 345. [2018-10-14 16:54:57,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2018-10-14 16:54:57,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 345 transitions. [2018-10-14 16:54:57,153 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 345 transitions. Word has length 332 [2018-10-14 16:54:57,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:54:57,155 INFO L481 AbstractCegarLoop]: Abstraction has 345 states and 345 transitions. [2018-10-14 16:54:57,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 96 states. [2018-10-14 16:54:57,155 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 345 transitions. [2018-10-14 16:54:57,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2018-10-14 16:54:57,162 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:54:57,163 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:54:57,163 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:54:57,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:54:57,164 INFO L82 PathProgramCache]: Analyzing trace with hash 26090920, now seen corresponding path program 1 times [2018-10-14 16:54:57,165 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:54:57,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:54:59,817 WARN L179 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2018-10-14 16:55:00,649 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2018-10-14 16:55:04,643 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2018-10-14 16:55:07,428 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2018-10-14 16:55:10,900 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2018-10-14 16:55:15,619 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:55:15,619 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:55:15,619 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [105] total 105 [2018-10-14 16:55:15,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 105 states [2018-10-14 16:55:15,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2018-10-14 16:55:15,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=317, Invalid=10603, Unknown=0, NotChecked=0, Total=10920 [2018-10-14 16:55:15,624 INFO L87 Difference]: Start difference. First operand 345 states and 345 transitions. Second operand 105 states. [2018-10-14 16:55:23,946 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2018-10-14 16:55:24,234 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2018-10-14 16:55:24,542 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2018-10-14 16:55:24,805 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2018-10-14 16:55:25,128 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2018-10-14 16:55:25,455 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2018-10-14 16:55:26,786 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2018-10-14 16:55:27,543 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2018-10-14 16:55:27,930 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2018-10-14 16:55:28,646 WARN L179 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2018-10-14 16:55:29,058 WARN L179 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2018-10-14 16:55:29,507 WARN L179 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2018-10-14 16:55:30,004 WARN L179 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2018-10-14 16:55:30,715 WARN L179 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2018-10-14 16:55:31,274 WARN L179 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 95 [2018-10-14 16:55:31,689 WARN L179 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 88 [2018-10-14 16:55:32,136 WARN L179 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 77 [2018-10-14 16:55:32,594 WARN L179 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 83 [2018-10-14 16:55:33,054 WARN L179 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 86 [2018-10-14 16:55:33,377 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 77 [2018-10-14 16:55:34,319 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 64 [2018-10-14 16:55:34,631 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2018-10-14 16:55:35,221 WARN L179 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 75 [2018-10-14 16:55:35,700 WARN L179 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 82 [2018-10-14 16:55:36,362 WARN L179 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 95 [2018-10-14 16:55:36,987 WARN L179 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 100 [2018-10-14 16:55:37,679 WARN L179 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2018-10-14 16:55:38,139 WARN L179 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2018-10-14 16:55:39,319 WARN L179 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 99 [2018-10-14 16:55:39,877 WARN L179 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 108 [2018-10-14 16:55:40,481 WARN L179 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 117 [2018-10-14 16:55:40,945 WARN L179 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 108 [2018-10-14 16:55:41,578 WARN L179 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 115 [2018-10-14 16:55:42,267 WARN L179 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 119 [2018-10-14 16:55:43,212 WARN L179 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 125 [2018-10-14 16:55:43,914 WARN L179 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 129 [2018-10-14 16:55:44,664 WARN L179 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 130 [2018-10-14 16:55:45,474 WARN L179 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 133 [2018-10-14 16:55:46,277 WARN L179 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 99 [2018-10-14 16:55:47,037 WARN L179 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 119 [2018-10-14 16:55:47,619 WARN L179 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 114 [2018-10-14 16:55:48,259 WARN L179 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 117 [2018-10-14 16:55:48,974 WARN L179 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 129 [2018-10-14 16:55:49,846 WARN L179 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 108 [2018-10-14 16:55:50,601 WARN L179 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 136 [2018-10-14 16:55:51,397 WARN L179 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 142 [2018-10-14 16:55:52,639 WARN L179 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 146 [2018-10-14 16:55:53,534 WARN L179 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 159 [2018-10-14 16:55:54,314 WARN L179 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 141 [2018-10-14 16:55:55,202 WARN L179 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 159 [2018-10-14 16:55:56,077 WARN L179 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 118 [2018-10-14 16:55:56,811 WARN L179 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 145 [2018-10-14 16:55:57,397 WARN L179 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 132 [2018-10-14 16:55:57,933 WARN L179 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 108 [2018-10-14 16:55:58,453 WARN L179 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 112 [2018-10-14 16:55:58,995 WARN L179 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 115 [2018-10-14 16:55:59,414 WARN L179 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 106 [2018-10-14 16:55:59,666 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2018-10-14 16:55:59,976 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2018-10-14 16:56:00,463 WARN L179 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 75 [2018-10-14 16:56:00,880 WARN L179 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 77 [2018-10-14 16:56:01,605 WARN L179 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 86 [2018-10-14 16:56:02,351 WARN L179 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 95 [2018-10-14 16:56:03,161 WARN L179 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 122 [2018-10-14 16:56:03,961 WARN L179 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 129 [2018-10-14 16:56:04,669 WARN L179 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 91 [2018-10-14 16:56:05,330 WARN L179 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 118 [2018-10-14 16:56:05,836 WARN L179 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 111 [2018-10-14 16:56:07,177 WARN L179 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 127 [2018-10-14 16:56:07,935 WARN L179 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 136 [2018-10-14 16:56:08,776 WARN L179 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 145 [2018-10-14 16:56:09,468 WARN L179 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 136 [2018-10-14 16:56:10,249 WARN L179 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 138 [2018-10-14 16:56:11,067 WARN L179 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 140 [2018-10-14 16:56:12,207 WARN L179 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 135 [2018-10-14 16:56:13,071 WARN L179 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 142 [2018-10-14 16:56:13,836 WARN L179 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2018-10-14 16:56:14,461 WARN L179 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 135 [2018-10-14 16:56:15,098 WARN L179 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 128 [2018-10-14 16:56:15,737 WARN L179 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 134 [2018-10-14 16:56:16,541 WARN L179 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 105 [2018-10-14 16:56:17,200 WARN L179 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 133 [2018-10-14 16:56:17,929 WARN L179 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 135 [2018-10-14 16:56:18,978 WARN L179 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 141 [2018-10-14 16:56:20,059 WARN L179 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 144 [2018-10-14 16:56:20,645 WARN L179 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 127 [2018-10-14 16:56:21,253 WARN L179 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 131 [2018-10-14 16:56:21,835 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2018-10-14 16:56:22,160 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2018-10-14 16:56:22,815 WARN L179 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2018-10-14 16:56:23,206 WARN L179 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2018-10-14 16:56:23,573 WARN L179 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2018-10-14 16:56:23,940 WARN L179 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2018-10-14 16:56:24,424 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2018-10-14 16:56:24,782 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2018-10-14 16:56:25,165 WARN L179 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2018-10-14 16:56:25,609 WARN L179 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2018-10-14 16:56:26,076 WARN L179 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2018-10-14 16:56:26,576 WARN L179 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 129 [2018-10-14 16:56:27,214 WARN L179 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 128 [2018-10-14 16:56:27,775 WARN L179 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 130 [2018-10-14 16:56:28,399 WARN L179 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 123 [2018-10-14 16:56:28,893 WARN L179 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 132 [2018-10-14 16:56:29,591 WARN L179 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 141 [2018-10-14 16:56:30,089 WARN L179 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 133 [2018-10-14 16:56:30,476 WARN L179 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 124 [2018-10-14 16:56:30,930 WARN L179 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 122 [2018-10-14 16:56:31,422 WARN L179 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 114 [2018-10-14 16:56:31,840 WARN L179 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 116 [2018-10-14 16:56:32,392 WARN L179 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106 [2018-10-14 16:56:32,881 WARN L179 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 109 [2018-10-14 16:56:33,316 WARN L179 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2018-10-14 16:56:33,752 WARN L179 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2018-10-14 16:56:34,084 WARN L179 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2018-10-14 16:56:34,631 WARN L179 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2018-10-14 16:56:35,247 WARN L179 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2018-10-14 16:56:35,660 WARN L179 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2018-10-14 16:56:35,985 WARN L179 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2018-10-14 16:56:36,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:56:36,069 INFO L93 Difference]: Finished difference Result 364 states and 364 transitions. [2018-10-14 16:56:36,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2018-10-14 16:56:36,069 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 344 [2018-10-14 16:56:36,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:56:36,073 INFO L225 Difference]: With dead ends: 364 [2018-10-14 16:56:36,074 INFO L226 Difference]: Without dead ends: 364 [2018-10-14 16:56:36,078 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 3 SyntacticMatches, 7 SemanticMatches, 250 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14369 ImplicationChecksByTransitivity, 75.3s TimeCoverageRelationStatistics Valid=6177, Invalid=57075, Unknown=0, NotChecked=0, Total=63252 [2018-10-14 16:56:36,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2018-10-14 16:56:36,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 357. [2018-10-14 16:56:36,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2018-10-14 16:56:36,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 357 transitions. [2018-10-14 16:56:36,096 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 357 transitions. Word has length 344 [2018-10-14 16:56:36,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:56:36,097 INFO L481 AbstractCegarLoop]: Abstraction has 357 states and 357 transitions. [2018-10-14 16:56:36,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 105 states. [2018-10-14 16:56:36,097 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 357 transitions. [2018-10-14 16:56:36,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2018-10-14 16:56:36,105 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:56:36,105 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:56:36,105 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:56:36,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:56:36,106 INFO L82 PathProgramCache]: Analyzing trace with hash 611678333, now seen corresponding path program 2 times [2018-10-14 16:56:36,107 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:56:36,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:56:51,654 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:56:51,654 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:56:51,654 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [102] total 102 [2018-10-14 16:56:51,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 102 states [2018-10-14 16:56:51,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2018-10-14 16:56:51,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=10016, Unknown=0, NotChecked=0, Total=10302 [2018-10-14 16:56:51,656 INFO L87 Difference]: Start difference. First operand 357 states and 357 transitions. Second operand 102 states. [2018-10-14 16:57:02,285 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2018-10-14 16:57:02,606 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2018-10-14 16:57:02,956 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2018-10-14 16:57:03,383 WARN L179 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2018-10-14 16:57:04,090 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2018-10-14 16:57:04,520 WARN L179 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 81 [2018-10-14 16:57:04,831 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 75 [2018-10-14 16:57:05,241 WARN L179 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 77 [2018-10-14 16:57:05,584 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 75 [2018-10-14 16:57:06,034 WARN L179 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 79 [2018-10-14 16:57:06,486 WARN L179 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 84 [2018-10-14 16:57:06,800 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 75 [2018-10-14 16:57:07,681 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2018-10-14 16:57:07,979 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2018-10-14 16:57:08,594 WARN L179 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 78 [2018-10-14 16:57:09,102 WARN L179 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 91 [2018-10-14 16:57:09,722 WARN L179 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 103 [2018-10-14 16:57:10,302 WARN L179 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 108 [2018-10-14 16:57:11,201 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2018-10-14 16:57:11,658 WARN L179 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 92 [2018-10-14 16:57:12,927 WARN L179 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 105 [2018-10-14 16:57:13,488 WARN L179 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 118 [2018-10-14 16:57:14,122 WARN L179 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 131 [2018-10-14 16:57:14,570 WARN L179 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 118 [2018-10-14 16:57:15,154 WARN L179 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 120 [2018-10-14 16:57:15,775 WARN L179 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 119 [2018-10-14 16:57:16,665 WARN L179 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 123 [2018-10-14 16:57:17,293 WARN L179 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 127 [2018-10-14 16:57:17,968 WARN L179 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 129 [2018-10-14 16:57:18,698 WARN L179 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 132 [2018-10-14 16:57:19,544 WARN L179 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 101 [2018-10-14 16:57:20,187 WARN L179 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 121 [2018-10-14 16:57:20,693 WARN L179 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 115 [2018-10-14 16:57:21,285 WARN L179 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 118 [2018-10-14 16:57:21,950 WARN L179 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 134 [2018-10-14 16:57:22,839 WARN L179 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 114 [2018-10-14 16:57:23,561 WARN L179 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 149 [2018-10-14 16:57:24,838 WARN L179 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 153 [2018-10-14 16:57:25,706 WARN L179 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 170 [2018-10-14 16:57:26,400 WARN L179 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 138 [2018-10-14 16:57:27,224 WARN L179 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 161 [2018-10-14 16:57:28,093 WARN L179 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 116 [2018-10-14 16:57:28,813 WARN L179 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 148 [2018-10-14 16:57:29,419 WARN L179 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 131 [2018-10-14 16:57:29,975 WARN L179 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 110 [2018-10-14 16:57:30,513 WARN L179 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 112 [2018-10-14 16:57:31,248 WARN L179 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 117 [2018-10-14 16:57:31,796 WARN L179 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 108 [2018-10-14 16:57:32,086 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2018-10-14 16:57:32,418 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2018-10-14 16:57:32,851 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 77 [2018-10-14 16:57:33,274 WARN L179 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 79 [2018-10-14 16:57:33,964 WARN L179 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 86 [2018-10-14 16:57:34,577 WARN L179 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 95 [2018-10-14 16:57:35,426 WARN L179 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 126 [2018-10-14 16:57:36,206 WARN L179 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 133 [2018-10-14 16:57:36,864 WARN L179 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2018-10-14 16:57:37,354 WARN L179 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 118 [2018-10-14 16:57:37,840 WARN L179 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 111 [2018-10-14 16:57:38,935 WARN L179 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 127 [2018-10-14 16:57:39,544 WARN L179 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 136 [2018-10-14 16:57:40,186 WARN L179 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 145 [2018-10-14 16:57:40,706 WARN L179 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 136 [2018-10-14 16:57:41,411 WARN L179 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 138 [2018-10-14 16:57:42,410 WARN L179 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 135 [2018-10-14 16:57:43,072 WARN L179 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 142 [2018-10-14 16:57:43,853 WARN L179 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 98 [2018-10-14 16:57:44,523 WARN L179 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 133 [2018-10-14 16:57:45,161 WARN L179 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 126 [2018-10-14 16:57:45,777 WARN L179 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 128 [2018-10-14 16:57:46,602 WARN L179 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 93 [2018-10-14 16:57:47,183 WARN L179 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 121 [2018-10-14 16:57:47,792 WARN L179 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 124 [2018-10-14 16:57:48,778 WARN L179 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 132 [2018-10-14 16:57:49,641 WARN L179 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 135 [2018-10-14 16:57:50,231 WARN L179 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 122 [2018-10-14 16:57:50,869 WARN L179 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 126 [2018-10-14 16:57:51,179 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2018-10-14 16:57:51,573 WARN L179 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2018-10-14 16:57:51,964 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2018-10-14 16:57:52,651 WARN L179 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2018-10-14 16:57:53,108 WARN L179 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2018-10-14 16:57:53,541 WARN L179 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2018-10-14 16:57:53,963 WARN L179 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 105 [2018-10-14 16:57:54,514 WARN L179 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2018-10-14 16:57:54,934 WARN L179 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2018-10-14 16:57:55,377 WARN L179 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 100 [2018-10-14 16:57:55,860 WARN L179 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2018-10-14 16:57:56,410 WARN L179 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 136 [2018-10-14 16:57:56,976 WARN L179 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 142 [2018-10-14 16:57:57,695 WARN L179 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 147 [2018-10-14 16:57:58,266 WARN L179 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 149 [2018-10-14 16:57:58,972 WARN L179 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 143 [2018-10-14 16:57:59,557 WARN L179 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 157 [2018-10-14 16:58:00,191 WARN L179 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 171 [2018-10-14 16:58:00,781 WARN L179 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 164 [2018-10-14 16:58:01,252 WARN L179 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 150 [2018-10-14 16:58:01,794 WARN L179 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2018-10-14 16:58:02,377 WARN L179 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 137 [2018-10-14 16:58:02,883 WARN L179 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 139 [2018-10-14 16:58:03,524 WARN L179 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 123 [2018-10-14 16:58:03,996 WARN L179 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 129 [2018-10-14 16:58:04,495 WARN L179 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 135 [2018-10-14 16:58:04,982 WARN L179 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 131 [2018-10-14 16:58:05,362 WARN L179 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 125 [2018-10-14 16:58:05,985 WARN L179 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2018-10-14 16:58:06,447 WARN L179 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 121 [2018-10-14 16:58:07,067 WARN L179 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2018-10-14 16:58:07,523 WARN L179 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2018-10-14 16:58:07,978 WARN L179 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 121 [2018-10-14 16:58:08,451 WARN L179 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2018-10-14 16:58:08,831 WARN L179 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2018-10-14 16:58:09,461 WARN L179 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2018-10-14 16:58:10,155 WARN L179 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2018-10-14 16:58:10,646 WARN L179 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2018-10-14 16:58:11,038 WARN L179 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2018-10-14 16:58:11,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:58:11,123 INFO L93 Difference]: Finished difference Result 376 states and 376 transitions. [2018-10-14 16:58:11,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2018-10-14 16:58:11,123 INFO L78 Accepts]: Start accepts. Automaton has 102 states. Word has length 356 [2018-10-14 16:58:11,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:58:11,125 INFO L225 Difference]: With dead ends: 376 [2018-10-14 16:58:11,125 INFO L226 Difference]: Without dead ends: 376 [2018-10-14 16:58:11,127 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 7 SyntacticMatches, 5 SemanticMatches, 248 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13400 ImplicationChecksByTransitivity, 69.9s TimeCoverageRelationStatistics Valid=5431, Invalid=56819, Unknown=0, NotChecked=0, Total=62250 [2018-10-14 16:58:11,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2018-10-14 16:58:11,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 369. [2018-10-14 16:58:11,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2018-10-14 16:58:11,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 369 transitions. [2018-10-14 16:58:11,142 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 369 transitions. Word has length 356 [2018-10-14 16:58:11,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:58:11,143 INFO L481 AbstractCegarLoop]: Abstraction has 369 states and 369 transitions. [2018-10-14 16:58:11,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 102 states. [2018-10-14 16:58:11,143 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 369 transitions. [2018-10-14 16:58:11,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2018-10-14 16:58:11,149 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:58:11,149 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:58:11,150 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:58:11,150 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:58:11,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1473627182, now seen corresponding path program 3 times [2018-10-14 16:58:11,151 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:58:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:58:14,646 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2018-10-14 16:58:15,020 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2018-10-14 16:58:15,344 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2018-10-14 16:58:15,807 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2018-10-14 16:58:16,012 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2018-10-14 16:58:16,216 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2018-10-14 16:58:16,439 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2018-10-14 16:58:16,649 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2018-10-14 16:58:16,864 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2018-10-14 16:58:17,084 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2018-10-14 16:58:17,342 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2018-10-14 16:58:17,793 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2018-10-14 16:58:18,044 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-10-14 16:58:19,625 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2018-10-14 16:58:20,223 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2018-10-14 16:58:20,888 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2018-10-14 16:58:21,336 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2018-10-14 16:58:21,624 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2018-10-14 16:58:22,405 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2018-10-14 16:58:22,876 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2018-10-14 16:58:23,368 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2018-10-14 16:58:29,949 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:58:29,949 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:58:29,949 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [114] total 114 [2018-10-14 16:58:29,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 114 states [2018-10-14 16:58:29,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2018-10-14 16:58:29,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=12525, Unknown=0, NotChecked=0, Total=12882 [2018-10-14 16:58:29,950 INFO L87 Difference]: Start difference. First operand 369 states and 369 transitions. Second operand 114 states. [2018-10-14 16:58:38,137 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2018-10-14 16:58:38,451 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2018-10-14 16:58:38,679 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2018-10-14 16:58:39,001 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2018-10-14 16:58:39,325 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2018-10-14 16:58:40,639 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2018-10-14 16:58:41,450 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2018-10-14 16:58:41,863 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2018-10-14 16:58:42,648 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2018-10-14 16:58:43,089 WARN L179 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2018-10-14 16:58:43,560 WARN L179 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 91 [2018-10-14 16:58:44,069 WARN L179 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 93 [2018-10-14 16:58:44,891 WARN L179 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2018-10-14 16:58:45,420 WARN L179 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 95 [2018-10-14 16:58:45,815 WARN L179 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 88 [2018-10-14 16:58:46,278 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2018-10-14 16:58:46,719 WARN L179 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 81 [2018-10-14 16:58:47,174 WARN L179 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 84 [2018-10-14 16:58:47,506 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 75 [2018-10-14 16:58:47,972 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2018-10-14 16:58:48,402 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 63 [2018-10-14 16:58:48,733 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2018-10-14 16:58:49,373 WARN L179 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 74 [2018-10-14 16:58:49,898 WARN L179 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 84 [2018-10-14 16:58:50,596 WARN L179 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 101 [2018-10-14 16:58:51,229 WARN L179 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 106 [2018-10-14 16:58:51,985 WARN L179 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2018-10-14 16:58:52,508 WARN L179 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 97 [2018-10-14 16:58:53,876 WARN L179 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 108 [2018-10-14 16:58:54,551 WARN L179 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 117 [2018-10-14 16:58:55,305 WARN L179 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 128 [2018-10-14 16:58:55,927 WARN L179 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 117 [2018-10-14 16:58:56,693 WARN L179 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 125 [2018-10-14 16:58:57,464 WARN L179 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 127 [2018-10-14 16:58:58,547 WARN L179 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 132 [2018-10-14 16:58:59,365 WARN L179 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 137 [2018-10-14 16:59:00,235 WARN L179 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 138 [2018-10-14 16:59:01,172 WARN L179 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 142 [2018-10-14 16:59:02,116 WARN L179 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 106 [2018-10-14 16:59:02,884 WARN L179 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 128 [2018-10-14 16:59:03,513 WARN L179 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 122 [2018-10-14 16:59:04,211 WARN L179 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 123 [2018-10-14 16:59:04,992 WARN L179 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 139 [2018-10-14 16:59:06,015 WARN L179 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 118 [2018-10-14 16:59:06,856 WARN L179 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 149 [2018-10-14 16:59:07,799 WARN L179 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 153 [2018-10-14 16:59:09,153 WARN L179 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 157 [2018-10-14 16:59:10,198 WARN L179 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 172 [2018-10-14 16:59:11,084 WARN L179 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 149 [2018-10-14 16:59:12,087 WARN L179 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 168 [2018-10-14 16:59:13,109 WARN L179 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 125 [2018-10-14 16:59:14,134 WARN L179 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 153 [2018-10-14 16:59:14,973 WARN L179 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 138 [2018-10-14 16:59:15,556 WARN L179 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 111 [2018-10-14 16:59:16,254 WARN L179 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 115 [2018-10-14 16:59:16,972 WARN L179 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 118 [2018-10-14 16:59:18,144 WARN L179 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 109 [2018-10-14 16:59:18,384 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2018-10-14 16:59:18,734 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2018-10-14 16:59:19,248 WARN L179 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2018-10-14 16:59:19,683 WARN L179 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 78 [2018-10-14 16:59:20,369 WARN L179 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 91 [2018-10-14 16:59:20,956 WARN L179 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 101 [2018-10-14 16:59:21,738 WARN L179 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 130 [2018-10-14 16:59:22,461 WARN L179 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 137 [2018-10-14 16:59:23,209 WARN L179 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 93 [2018-10-14 16:59:23,768 WARN L179 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 121 [2018-10-14 16:59:24,309 WARN L179 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 114 [2018-10-14 16:59:25,532 WARN L179 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 134 [2018-10-14 16:59:26,226 WARN L179 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 144 [2018-10-14 16:59:26,991 WARN L179 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 154 [2018-10-14 16:59:27,622 WARN L179 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 144 [2018-10-14 16:59:28,326 WARN L179 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 146 [2018-10-14 16:59:29,045 WARN L179 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 148 [2018-10-14 16:59:30,183 WARN L179 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 144 [2018-10-14 16:59:30,984 WARN L179 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 153 [2018-10-14 16:59:31,844 WARN L179 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 111 [2018-10-14 16:59:32,597 WARN L179 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 142 [2018-10-14 16:59:33,368 WARN L179 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 133 [2018-10-14 16:59:34,145 WARN L179 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 139 [2018-10-14 16:59:35,039 WARN L179 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 108 [2018-10-14 16:59:35,768 WARN L179 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 138 [2018-10-14 16:59:36,514 WARN L179 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 140 [2018-10-14 16:59:37,655 WARN L179 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 146 [2018-10-14 16:59:38,637 WARN L179 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 149 [2018-10-14 16:59:39,178 WARN L179 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 134 [2018-10-14 16:59:39,795 WARN L179 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 138 [2018-10-14 16:59:40,364 WARN L179 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2018-10-14 16:59:40,691 WARN L179 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2018-10-14 16:59:41,248 WARN L179 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 107 [2018-10-14 16:59:41,684 WARN L179 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 128 [2018-10-14 16:59:42,069 WARN L179 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 111 [2018-10-14 16:59:42,462 WARN L179 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2018-10-14 16:59:42,928 WARN L179 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2018-10-14 16:59:43,314 WARN L179 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 98 [2018-10-14 16:59:43,712 WARN L179 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 104 [2018-10-14 16:59:44,156 WARN L179 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 128 [2018-10-14 16:59:44,693 WARN L179 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 149 [2018-10-14 16:59:45,265 WARN L179 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 155 [2018-10-14 16:59:45,945 WARN L179 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 164 [2018-10-14 16:59:46,532 WARN L179 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 166 [2018-10-14 16:59:47,225 WARN L179 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 160 [2018-10-14 16:59:47,848 WARN L179 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 178 [2018-10-14 16:59:48,507 WARN L179 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 196 [2018-10-14 16:59:49,128 WARN L179 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 190 [2018-10-14 16:59:49,639 WARN L179 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 172 [2018-10-14 16:59:50,198 WARN L179 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 169 [2018-10-14 16:59:50,726 WARN L179 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 160 [2018-10-14 16:59:51,203 WARN L179 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 162 [2018-10-14 16:59:51,774 WARN L179 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 141 [2018-10-14 16:59:52,223 WARN L179 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 151 [2018-10-14 16:59:52,697 WARN L179 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 161 [2018-10-14 16:59:53,159 WARN L179 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 156 [2018-10-14 16:59:53,538 WARN L179 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 146 [2018-10-14 16:59:54,102 WARN L179 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 140 [2018-10-14 16:59:54,534 WARN L179 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 142 [2018-10-14 16:59:55,070 WARN L179 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 132 [2018-10-14 16:59:55,502 WARN L179 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 138 [2018-10-14 16:59:55,929 WARN L179 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 144 [2018-10-14 16:59:56,367 WARN L179 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 140 [2018-10-14 16:59:56,731 WARN L179 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 134 [2018-10-14 16:59:57,251 WARN L179 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 128 [2018-10-14 16:59:57,660 WARN L179 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 130 [2018-10-14 16:59:58,176 WARN L179 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 124 [2018-10-14 16:59:58,596 WARN L179 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 127 [2018-10-14 16:59:59,013 WARN L179 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 130 [2018-10-14 16:59:59,435 WARN L179 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 127 [2018-10-14 16:59:59,790 WARN L179 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 124 [2018-10-14 17:00:00,319 WARN L179 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 119 [2018-10-14 17:00:00,898 WARN L179 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 116 [2018-10-14 17:00:01,358 WARN L179 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2018-10-14 17:00:01,736 WARN L179 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 110 [2018-10-14 17:00:01,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 17:00:01,797 INFO L93 Difference]: Finished difference Result 388 states and 388 transitions. [2018-10-14 17:00:01,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2018-10-14 17:00:01,798 INFO L78 Accepts]: Start accepts. Automaton has 114 states. Word has length 368 [2018-10-14 17:00:01,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 17:00:01,800 INFO L225 Difference]: With dead ends: 388 [2018-10-14 17:00:01,801 INFO L226 Difference]: Without dead ends: 388 [2018-10-14 17:00:01,803 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 3 SyntacticMatches, 7 SemanticMatches, 273 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19745 ImplicationChecksByTransitivity, 85.2s TimeCoverageRelationStatistics Valid=6482, Invalid=68868, Unknown=0, NotChecked=0, Total=75350 [2018-10-14 17:00:01,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2018-10-14 17:00:01,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 381. [2018-10-14 17:00:01,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2018-10-14 17:00:01,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 381 transitions. [2018-10-14 17:00:01,813 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 381 transitions. Word has length 368 [2018-10-14 17:00:01,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 17:00:01,814 INFO L481 AbstractCegarLoop]: Abstraction has 381 states and 381 transitions. [2018-10-14 17:00:01,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 114 states. [2018-10-14 17:00:01,814 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 381 transitions. [2018-10-14 17:00:01,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2018-10-14 17:00:01,820 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 17:00:01,820 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 17:00:01,821 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 17:00:01,821 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 17:00:01,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1028892583, now seen corresponding path program 4 times [2018-10-14 17:00:01,822 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 17:00:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 17:00:09,786 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2018-10-14 17:00:10,027 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2018-10-14 17:00:10,274 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2018-10-14 17:00:11,818 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2018-10-14 17:00:12,662 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2018-10-14 17:00:13,173 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2018-10-14 17:00:13,724 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2018-10-14 17:00:14,220 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2018-10-14 17:00:21,375 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 17:00:21,376 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 17:00:21,376 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [118] total 118 [2018-10-14 17:00:21,377 INFO L460 AbstractCegarLoop]: Interpolant automaton has 118 states [2018-10-14 17:00:21,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2018-10-14 17:00:21,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=368, Invalid=13438, Unknown=0, NotChecked=0, Total=13806 [2018-10-14 17:00:21,378 INFO L87 Difference]: Start difference. First operand 381 states and 381 transitions. Second operand 118 states. [2018-10-14 17:00:29,985 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2018-10-14 17:00:30,322 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2018-10-14 17:00:30,563 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2018-10-14 17:00:30,896 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2018-10-14 17:00:31,244 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2018-10-14 17:00:32,640 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2018-10-14 17:00:33,484 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2018-10-14 17:00:33,917 WARN L179 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2018-10-14 17:00:34,754 WARN L179 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 79 [2018-10-14 17:00:35,234 WARN L179 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 83 [2018-10-14 17:00:35,742 WARN L179 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 91 [2018-10-14 17:00:36,271 WARN L179 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 93 [2018-10-14 17:00:37,111 WARN L179 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 79 [2018-10-14 17:00:37,682 WARN L179 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 95 [2018-10-14 17:00:38,127 WARN L179 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 88 [2018-10-14 17:00:38,642 WARN L179 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 77 [2018-10-14 17:00:39,152 WARN L179 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 81 [2018-10-14 17:00:39,687 WARN L179 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 84 [2018-10-14 17:00:40,051 WARN L179 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 75 [2018-10-14 17:00:40,999 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 63 [2018-10-14 17:00:41,369 WARN L179 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 65 [2018-10-14 17:00:42,073 WARN L179 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 74 [2018-10-14 17:00:42,632 WARN L179 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 83 [2018-10-14 17:00:43,346 WARN L179 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 96 [2018-10-14 17:00:44,024 WARN L179 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 101 [2018-10-14 17:00:44,834 WARN L179 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 77 [2018-10-14 17:00:45,337 WARN L179 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 90 [2018-10-14 17:00:46,633 WARN L179 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 99 [2018-10-14 17:00:47,210 WARN L179 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 108 [2018-10-14 17:00:47,839 WARN L179 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 117 [2018-10-14 17:00:48,332 WARN L179 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 108 [2018-10-14 17:00:48,966 WARN L179 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 115 [2018-10-14 17:00:49,649 WARN L179 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 119 [2018-10-14 17:00:50,659 WARN L179 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 125 [2018-10-14 17:00:51,390 WARN L179 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 129 [2018-10-14 17:00:52,171 WARN L179 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 130 [2018-10-14 17:00:53,003 WARN L179 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 133 [2018-10-14 17:00:53,943 WARN L179 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 99 [2018-10-14 17:00:54,680 WARN L179 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 119 [2018-10-14 17:00:55,296 WARN L179 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 114 [2018-10-14 17:00:55,991 WARN L179 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 117 [2018-10-14 17:00:56,767 WARN L179 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 129 [2018-10-14 17:00:57,752 WARN L179 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 108 [2018-10-14 17:00:58,522 WARN L179 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 136 [2018-10-14 17:00:59,380 WARN L179 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 140 [2018-10-14 17:01:00,670 WARN L179 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 144 [2018-10-14 17:01:01,628 WARN L179 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 157 [2018-10-14 17:01:02,477 WARN L179 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 139 [2018-10-14 17:01:03,445 WARN L179 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 158 [2018-10-14 17:01:04,474 WARN L179 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 119 [2018-10-14 17:01:05,504 WARN L179 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 149 [2018-10-14 17:01:06,318 WARN L179 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 136 [2018-10-14 17:01:06,931 WARN L179 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 112 [2018-10-14 17:01:07,524 WARN L179 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 116 [2018-10-14 17:01:08,158 WARN L179 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 119 [2018-10-14 17:01:08,675 WARN L179 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 110 [2018-10-14 17:01:08,943 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2018-10-14 17:01:09,335 WARN L179 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 69 [2018-10-14 17:01:09,898 WARN L179 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 78 [2018-10-14 17:01:10,377 WARN L179 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 80 [2018-10-14 17:01:11,140 WARN L179 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 95 [2018-10-14 17:01:11,781 WARN L179 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 105 [2018-10-14 17:01:12,657 WARN L179 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 135 [2018-10-14 17:01:13,451 WARN L179 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 142 [2018-10-14 17:01:14,291 WARN L179 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 94 [2018-10-14 17:01:14,916 WARN L179 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 124 [2018-10-14 17:01:15,527 WARN L179 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 117 [2018-10-14 17:01:16,873 WARN L179 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 134 [2018-10-14 17:01:17,606 WARN L179 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 149 [2018-10-14 17:01:18,441 WARN L179 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 159 [2018-10-14 17:01:19,119 WARN L179 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 149 [2018-10-14 17:01:19,890 WARN L179 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 151 [2018-10-14 17:01:20,677 WARN L179 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 153 [2018-10-14 17:01:21,888 WARN L179 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 149 [2018-10-14 17:01:22,756 WARN L179 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 157 [2018-10-14 17:01:23,674 WARN L179 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 111 [2018-10-14 17:01:24,479 WARN L179 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 148 [2018-10-14 17:01:25,248 WARN L179 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 140 [2018-10-14 17:01:26,053 WARN L179 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 146 [2018-10-14 17:01:27,006 WARN L179 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 109 [2018-10-14 17:01:27,790 WARN L179 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 141 [2018-10-14 17:01:28,613 WARN L179 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 143 [2018-10-14 17:01:29,879 WARN L179 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 156 [2018-10-14 17:01:31,002 WARN L179 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 166 [2018-10-14 17:01:31,605 WARN L179 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 136 [2018-10-14 17:01:32,258 WARN L179 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 140 [2018-10-14 17:01:32,516 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2018-10-14 17:01:32,885 WARN L179 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 93 [2018-10-14 17:01:33,242 WARN L179 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 91 [2018-10-14 17:01:33,849 WARN L179 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 116 [2018-10-14 17:01:34,327 WARN L179 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 141 [2018-10-14 17:01:34,763 WARN L179 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 121 [2018-10-14 17:01:35,183 WARN L179 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 123 [2018-10-14 17:01:35,693 WARN L179 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 98 [2018-10-14 17:01:36,104 WARN L179 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 104 [2018-10-14 17:01:36,537 WARN L179 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 110 [2018-10-14 17:01:37,033 WARN L179 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 138 [2018-10-14 17:01:37,631 WARN L179 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 163 [2018-10-14 17:01:38,226 WARN L179 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 169 [2018-10-14 17:01:38,990 WARN L179 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 183 [2018-10-14 17:01:39,649 WARN L179 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 185 [2018-10-14 17:01:40,411 WARN L179 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 179 [2018-10-14 17:01:41,102 WARN L179 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 201 [2018-10-14 17:01:41,862 WARN L179 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 223 [2018-10-14 17:01:42,589 WARN L179 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 216 [2018-10-14 17:01:43,163 WARN L179 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 194 [2018-10-14 17:01:43,790 WARN L179 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 191 [2018-10-14 17:01:44,441 WARN L179 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 182 [2018-10-14 17:01:45,024 WARN L179 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 184 [2018-10-14 17:01:45,719 WARN L179 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 159 [2018-10-14 17:01:46,254 WARN L179 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 173 [2018-10-14 17:01:46,817 WARN L179 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 187 [2018-10-14 17:01:47,367 WARN L179 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 182 [2018-10-14 17:01:47,818 WARN L179 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 168 [2018-10-14 17:01:48,446 WARN L179 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 162 [2018-10-14 17:01:48,948 WARN L179 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 164 [2018-10-14 17:01:49,574 WARN L179 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 150 [2018-10-14 17:01:50,057 WARN L179 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 160 [2018-10-14 17:01:50,574 WARN L179 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 170 [2018-10-14 17:01:51,096 WARN L179 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 166 [2018-10-14 17:01:51,524 WARN L179 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 156 [2018-10-14 17:01:52,140 WARN L179 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 150 [2018-10-14 17:01:52,624 WARN L179 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 152 [2018-10-14 17:01:53,227 WARN L179 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 142 [2018-10-14 17:01:53,700 WARN L179 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 148 [2018-10-14 17:01:54,197 WARN L179 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 154 [2018-10-14 17:01:54,682 WARN L179 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 150 [2018-10-14 17:01:55,094 WARN L179 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 144 [2018-10-14 17:01:55,682 WARN L179 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 138 [2018-10-14 17:01:56,149 WARN L179 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 140 [2018-10-14 17:01:56,743 WARN L179 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 134 [2018-10-14 17:01:57,214 WARN L179 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 137 [2018-10-14 17:01:57,680 WARN L179 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 140 [2018-10-14 17:01:58,150 WARN L179 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 137 [2018-10-14 17:01:58,552 WARN L179 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 134 [2018-10-14 17:01:59,120 WARN L179 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 129 [2018-10-14 17:01:59,758 WARN L179 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 126 [2018-10-14 17:02:00,295 WARN L179 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 123 [2018-10-14 17:02:00,730 WARN L179 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 120 [2018-10-14 17:02:00,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 17:02:00,799 INFO L93 Difference]: Finished difference Result 400 states and 400 transitions. [2018-10-14 17:02:00,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2018-10-14 17:02:00,801 INFO L78 Accepts]: Start accepts. Automaton has 118 states. Word has length 380 [2018-10-14 17:02:00,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 17:02:00,804 INFO L225 Difference]: With dead ends: 400 [2018-10-14 17:02:00,804 INFO L226 Difference]: Without dead ends: 400 [2018-10-14 17:02:00,807 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 4 SyntacticMatches, 9 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21618 ImplicationChecksByTransitivity, 91.1s TimeCoverageRelationStatistics Valid=6711, Invalid=74799, Unknown=0, NotChecked=0, Total=81510 [2018-10-14 17:02:00,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2018-10-14 17:02:00,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 393. [2018-10-14 17:02:00,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2018-10-14 17:02:00,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 393 transitions. [2018-10-14 17:02:00,814 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 393 transitions. Word has length 380 [2018-10-14 17:02:00,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 17:02:00,815 INFO L481 AbstractCegarLoop]: Abstraction has 393 states and 393 transitions. [2018-10-14 17:02:00,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 118 states. [2018-10-14 17:02:00,815 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 393 transitions. [2018-10-14 17:02:00,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2018-10-14 17:02:00,817 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 17:02:00,818 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 17:02:00,818 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 17:02:00,818 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 17:02:00,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1816593412, now seen corresponding path program 5 times [2018-10-14 17:02:00,819 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 17:02:00,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 17:02:20,709 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 17:02:20,710 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 17:02:20,710 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [123] total 123 [2018-10-14 17:02:20,711 INFO L460 AbstractCegarLoop]: Interpolant automaton has 123 states [2018-10-14 17:02:20,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2018-10-14 17:02:20,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=352, Invalid=14654, Unknown=0, NotChecked=0, Total=15006 [2018-10-14 17:02:20,711 INFO L87 Difference]: Start difference. First operand 393 states and 393 transitions. Second operand 123 states.