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/AutomizerBplTransformed.xml -s ../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf -i ../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrcat-alloca_true-valid-memsafety_true-termination.i_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 18:15:51,402 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 18:15:51,404 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 18:15:51,417 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 18:15:51,418 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 18:15:51,419 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 18:15:51,420 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 18:15:51,423 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 18:15:51,427 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 18:15:51,434 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 18:15:51,435 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 18:15:51,435 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 18:15:51,440 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 18:15:51,441 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 18:15:51,442 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 18:15:51,443 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 18:15:51,444 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 18:15:51,446 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 18:15:51,448 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 18:15:51,449 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 18:15:51,450 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 18:15:51,451 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 18:15:51,454 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 18:15:51,454 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 18:15:51,454 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 18:15:51,455 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 18:15:51,456 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 18:15:51,457 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 18:15:51,458 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 18:15:51,459 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 18:15:51,459 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 18:15:51,460 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-14 18:15:51,460 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-14 18:15:51,460 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-14 18:15:51,461 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-14 18:15:51,462 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-14 18:15:51,462 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 18:15:51,478 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 18:15:51,478 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 18:15:51,480 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 18:15:51,480 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 18:15:51,480 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 18:15:51,481 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 18:15:51,481 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 18:15:51,481 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 18:15:51,484 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 18:15:51,485 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 18:15:51,485 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 18:15:51,485 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 18:15:51,485 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 18:15:51,486 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 18:15:51,488 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 18:15:51,533 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 18:15:51,549 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 18:15:51,555 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 18:15:51,557 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 18:15:51,558 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 18:15:51,558 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrcat-alloca_true-valid-memsafety_true-termination.i_10.bpl [2018-10-14 18:15:51,559 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/cstrcat-alloca_true-valid-memsafety_true-termination.i_10.bpl' [2018-10-14 18:15:51,658 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 18:15:51,661 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-14 18:15:51,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 18:15:51,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 18:15:51,662 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 18:15:51,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "cstrcat-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:15:51" (1/1) ... [2018-10-14 18:15:51,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "cstrcat-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:15:51" (1/1) ... [2018-10-14 18:15:51,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "cstrcat-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:15:51" (1/1) ... [2018-10-14 18:15:51,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "cstrcat-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:15:51" (1/1) ... [2018-10-14 18:15:51,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "cstrcat-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:15:51" (1/1) ... [2018-10-14 18:15:51,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "cstrcat-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:15:51" (1/1) ... [2018-10-14 18:15:51,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "cstrcat-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:15:51" (1/1) ... [2018-10-14 18:15:51,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 18:15:51,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 18:15:51,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 18:15:51,735 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 18:15:51,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "cstrcat-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:15:51" (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 18:15:51,808 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 18:15:51,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 18:15:51,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 18:15:52,400 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 18:15:52,401 INFO L202 PluginConnector]: Adding new model cstrcat-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:15:52 BoogieIcfgContainer [2018-10-14 18:15:52,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 18:15:52,401 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-10-14 18:15:52,401 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-10-14 18:15:52,402 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-10-14 18:15:52,406 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "cstrcat-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:15:52" (1/1) ... [2018-10-14 18:15:52,415 INFO L137 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-10-14 18:15:52,415 INFO L138 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-10-14 18:15:52,458 INFO L191 apSepIcfgTransformer]: Heap separator: starting loc-array-style preprocessing [2018-10-14 18:15:52,507 INFO L219 apSepIcfgTransformer]: finished MemlocArrayUpdater [2018-10-14 18:15:52,524 INFO L282 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-10-14 18:15:52,593 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=1) [2018-10-14 18:16:17,633 INFO L315 AbstractInterpreter]: Visited 79 different actions 96 times. Merged at 15 different actions 16 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-10-14 18:16:17,635 INFO L306 apSepIcfgTransformer]: finished equality analysis [2018-10-14 18:16:17,639 INFO L318 apSepIcfgTransformer]: Finished detection of select terms ("array reads") [2018-10-14 18:16:17,725 WARN L152 HeapPartitionManager]: No literal set constraint found for loc-array access (select |v_#locv_ULTIMATE.start_write~int_old_#memory_int_4_1_1| |v_ULTIMATE.start_write~int_#ptr.base_12|) at (assume write~int_old_#memory_int[write~int_#ptr.base := write~int_old_#memory_int[write~int_#ptr.base][write~int_#ptr.offset := write~int_#value]] == #memory_int;) [2018-10-14 18:16:17,771 WARN L152 HeapPartitionManager]: No literal set constraint found for loc-array access (select (select |#loc_#memory_int_(Array-Int-(Array-Int-#locsort2))| |v_ULTIMATE.start_read~int_#ptr.base_7|) |v_ULTIMATE.start_read~int_#ptr.offset_5|) at (assume #memory_int[read~int_#ptr.base][read~int_#ptr.offset] == read~int_#value;) [2018-10-14 18:16:17,773 INFO L232 HeapPartitionManager]: partitioning result: [2018-10-14 18:16:17,774 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-14 18:16:17,774 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-14 18:16:17,774 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 3 [2018-10-14 18:16:17,774 INFO L248 HeapPartitionManager]: # location blocks :2 [2018-10-14 18:16:17,775 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-14 18:16:17,775 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-14 18:16:17,775 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-14 18:16:17,775 INFO L237 HeapPartitionManager]: location blocks for array group [#memory_int, ULTIMATE.start_write~int_old_#memory_int] [2018-10-14 18:16:17,775 INFO L246 HeapPartitionManager]: at dimension 1 [2018-10-14 18:16:17,776 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 3 [2018-10-14 18:16:17,776 INFO L248 HeapPartitionManager]: # location blocks :2 [2018-10-14 18:16:17,776 INFO L246 HeapPartitionManager]: at dimension 2 [2018-10-14 18:16:17,776 INFO L247 HeapPartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-10-14 18:16:17,776 INFO L248 HeapPartitionManager]: # location blocks :1 [2018-10-14 18:16:17,778 INFO L145 ransitionTransformer]: executing heap partitioning transformation [2018-10-14 18:16:17,801 INFO L202 PluginConnector]: Adding new model cstrcat-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.10 06:16:17 BasicIcfg [2018-10-14 18:16:17,801 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-10-14 18:16:17,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 18:16:17,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 18:16:17,808 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 18:16:17,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cstrcat-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 06:15:51" (1/3) ... [2018-10-14 18:16:17,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@570f3e05 and model type cstrcat-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:16:17, skipping insertion in model container [2018-10-14 18:16:17,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cstrcat-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:15:52" (2/3) ... [2018-10-14 18:16:17,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@570f3e05 and model type cstrcat-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 06:16:17, skipping insertion in model container [2018-10-14 18:16:17,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cstrcat-alloca_true-valid-memsafety_true-termination.i_10.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.10 06:16:17" (3/3) ... [2018-10-14 18:16:17,812 INFO L112 eAbstractionObserver]: Analyzing ICFG memPartitionedIcfg [2018-10-14 18:16:17,823 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 18:16:17,832 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 18:16:17,848 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 18:16:17,876 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 18:16:17,877 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 18:16:17,877 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 18:16:17,877 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 18:16:17,877 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 18:16:17,881 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 18:16:17,881 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 18:16:17,881 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 18:16:17,881 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 18:16:17,898 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2018-10-14 18:16:17,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-10-14 18:16:17,906 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:16:17,907 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] [2018-10-14 18:16:17,909 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:16:17,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:16:17,914 INFO L82 PathProgramCache]: Analyzing trace with hash -572282269, now seen corresponding path program 1 times [2018-10-14 18:16:17,973 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:16:18,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:16:18,775 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 18:16:18,777 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 18:16:18,778 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-14 18:16:18,782 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-14 18:16:18,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-14 18:16:18,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-10-14 18:16:18,797 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 12 states. [2018-10-14 18:16:19,376 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-14 18:16:19,694 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-10-14 18:16:20,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:16:20,240 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2018-10-14 18:16:20,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-14 18:16:20,242 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 66 [2018-10-14 18:16:20,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:16:20,253 INFO L225 Difference]: With dead ends: 91 [2018-10-14 18:16:20,253 INFO L226 Difference]: Without dead ends: 91 [2018-10-14 18:16:20,255 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2018-10-14 18:16:20,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-10-14 18:16:20,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 80. [2018-10-14 18:16:20,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-10-14 18:16:20,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 80 transitions. [2018-10-14 18:16:20,306 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 80 transitions. Word has length 66 [2018-10-14 18:16:20,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:16:20,307 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 80 transitions. [2018-10-14 18:16:20,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-14 18:16:20,307 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 80 transitions. [2018-10-14 18:16:20,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-10-14 18:16:20,310 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:16:20,310 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-14 18:16:20,311 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:16:20,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:16:20,311 INFO L82 PathProgramCache]: Analyzing trace with hash 188123709, now seen corresponding path program 1 times [2018-10-14 18:16:20,312 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:16:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:16:20,741 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:16:20,742 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:16:20,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-10-14 18:16:20,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-14 18:16:20,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-14 18:16:20,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2018-10-14 18:16:20,745 INFO L87 Difference]: Start difference. First operand 80 states and 80 transitions. Second operand 14 states. [2018-10-14 18:16:21,318 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-10-14 18:16:21,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:16:21,867 INFO L93 Difference]: Finished difference Result 104 states and 104 transitions. [2018-10-14 18:16:21,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-14 18:16:21,872 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 79 [2018-10-14 18:16:21,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:16:21,874 INFO L225 Difference]: With dead ends: 104 [2018-10-14 18:16:21,874 INFO L226 Difference]: Without dead ends: 104 [2018-10-14 18:16:21,875 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=211, Invalid=491, Unknown=0, NotChecked=0, Total=702 [2018-10-14 18:16:21,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-10-14 18:16:21,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 93. [2018-10-14 18:16:21,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-10-14 18:16:21,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 93 transitions. [2018-10-14 18:16:21,887 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 93 transitions. Word has length 79 [2018-10-14 18:16:21,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:16:21,890 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 93 transitions. [2018-10-14 18:16:21,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-14 18:16:21,890 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 93 transitions. [2018-10-14 18:16:21,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-10-14 18:16:21,898 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:16:21,898 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 18:16:21,899 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:16:21,899 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:16:21,899 INFO L82 PathProgramCache]: Analyzing trace with hash 480492707, now seen corresponding path program 2 times [2018-10-14 18:16:21,902 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:16:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:16:22,772 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:16:22,773 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:16:22,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-10-14 18:16:22,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-10-14 18:16:22,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-10-14 18:16:22,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2018-10-14 18:16:22,774 INFO L87 Difference]: Start difference. First operand 93 states and 93 transitions. Second operand 24 states. [2018-10-14 18:16:24,327 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2018-10-14 18:16:24,675 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2018-10-14 18:16:26,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:16:26,276 INFO L93 Difference]: Finished difference Result 117 states and 117 transitions. [2018-10-14 18:16:26,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-10-14 18:16:26,277 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 92 [2018-10-14 18:16:26,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:16:26,279 INFO L225 Difference]: With dead ends: 117 [2018-10-14 18:16:26,279 INFO L226 Difference]: Without dead ends: 117 [2018-10-14 18:16:26,280 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=582, Invalid=1674, Unknown=0, NotChecked=0, Total=2256 [2018-10-14 18:16:26,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-10-14 18:16:26,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 106. [2018-10-14 18:16:26,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-10-14 18:16:26,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2018-10-14 18:16:26,288 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 92 [2018-10-14 18:16:26,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:16:26,289 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2018-10-14 18:16:26,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-10-14 18:16:26,289 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2018-10-14 18:16:26,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-14 18:16:26,291 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:16:26,291 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 18:16:26,292 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:16:26,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:16:26,292 INFO L82 PathProgramCache]: Analyzing trace with hash -736747523, now seen corresponding path program 3 times [2018-10-14 18:16:26,293 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:16:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:16:26,818 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 29 [2018-10-14 18:16:27,488 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 18:16:27,489 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:16:27,489 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-10-14 18:16:27,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-10-14 18:16:27,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-10-14 18:16:27,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=805, Unknown=0, NotChecked=0, Total=870 [2018-10-14 18:16:27,490 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand 30 states. [2018-10-14 18:16:29,172 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2018-10-14 18:16:29,406 WARN L179 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2018-10-14 18:16:29,710 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2018-10-14 18:16:29,918 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2018-10-14 18:16:30,104 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2018-10-14 18:16:30,334 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-10-14 18:16:30,531 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2018-10-14 18:16:30,680 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2018-10-14 18:16:30,967 WARN L179 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2018-10-14 18:16:31,229 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2018-10-14 18:16:31,458 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2018-10-14 18:16:31,858 WARN L179 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2018-10-14 18:16:32,169 WARN L179 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2018-10-14 18:16:32,341 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2018-10-14 18:16:33,176 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2018-10-14 18:16:33,353 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2018-10-14 18:16:33,613 WARN L179 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2018-10-14 18:16:33,775 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2018-10-14 18:16:34,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:16:34,095 INFO L93 Difference]: Finished difference Result 130 states and 130 transitions. [2018-10-14 18:16:34,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-10-14 18:16:34,096 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 105 [2018-10-14 18:16:34,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:16:34,098 INFO L225 Difference]: With dead ends: 130 [2018-10-14 18:16:34,098 INFO L226 Difference]: Without dead ends: 130 [2018-10-14 18:16:34,100 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=810, Invalid=2850, Unknown=0, NotChecked=0, Total=3660 [2018-10-14 18:16:34,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-10-14 18:16:34,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 119. [2018-10-14 18:16:34,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-10-14 18:16:34,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 119 transitions. [2018-10-14 18:16:34,108 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 119 transitions. Word has length 105 [2018-10-14 18:16:34,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:16:34,108 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 119 transitions. [2018-10-14 18:16:34,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-10-14 18:16:34,109 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 119 transitions. [2018-10-14 18:16:34,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-10-14 18:16:34,111 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:16:34,111 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 18:16:34,111 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:16:34,111 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:16:34,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1926594275, now seen corresponding path program 4 times [2018-10-14 18:16:34,112 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:16:34,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:16:36,149 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:16:36,149 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:16:36,149 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-10-14 18:16:36,150 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-10-14 18:16:36,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-10-14 18:16:36,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1179, Unknown=0, NotChecked=0, Total=1260 [2018-10-14 18:16:36,151 INFO L87 Difference]: Start difference. First operand 119 states and 119 transitions. Second operand 36 states. [2018-10-14 18:16:37,720 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2018-10-14 18:16:38,098 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2018-10-14 18:16:38,444 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2018-10-14 18:16:38,695 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2018-10-14 18:16:38,906 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2018-10-14 18:16:39,173 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2018-10-14 18:16:39,426 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2018-10-14 18:16:39,621 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2018-10-14 18:16:40,005 WARN L179 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 114 [2018-10-14 18:16:40,400 WARN L179 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2018-10-14 18:16:40,717 WARN L179 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2018-10-14 18:16:41,165 WARN L179 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 105 [2018-10-14 18:16:41,612 WARN L179 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 118 [2018-10-14 18:16:41,859 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2018-10-14 18:16:42,235 WARN L179 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2018-10-14 18:16:42,653 WARN L179 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 107 [2018-10-14 18:16:42,970 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2018-10-14 18:16:43,203 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2018-10-14 18:16:43,384 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-10-14 18:16:43,885 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2018-10-14 18:16:44,085 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2018-10-14 18:16:44,293 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-10-14 18:16:44,650 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2018-10-14 18:16:44,851 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2018-10-14 18:16:45,013 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2018-10-14 18:16:45,204 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2018-10-14 18:16:45,588 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2018-10-14 18:16:45,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:16:45,644 INFO L93 Difference]: Finished difference Result 143 states and 143 transitions. [2018-10-14 18:16:45,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-10-14 18:16:45,644 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 118 [2018-10-14 18:16:45,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:16:45,646 INFO L225 Difference]: With dead ends: 143 [2018-10-14 18:16:45,646 INFO L226 Difference]: Without dead ends: 143 [2018-10-14 18:16:45,648 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=1040, Invalid=4362, Unknown=0, NotChecked=0, Total=5402 [2018-10-14 18:16:45,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-10-14 18:16:45,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 132. [2018-10-14 18:16:45,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-10-14 18:16:45,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 132 transitions. [2018-10-14 18:16:45,655 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 132 transitions. Word has length 118 [2018-10-14 18:16:45,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:16:45,656 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 132 transitions. [2018-10-14 18:16:45,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-10-14 18:16:45,656 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 132 transitions. [2018-10-14 18:16:45,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-10-14 18:16:45,658 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:16:45,659 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 18:16:45,659 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:16:45,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:16:45,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1606550973, now seen corresponding path program 5 times [2018-10-14 18:16:45,660 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:16:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:16:48,651 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:16:48,651 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:16:48,652 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2018-10-14 18:16:48,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-10-14 18:16:48,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-10-14 18:16:48,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=1756, Unknown=0, NotChecked=0, Total=1892 [2018-10-14 18:16:48,653 INFO L87 Difference]: Start difference. First operand 132 states and 132 transitions. Second operand 44 states. [2018-10-14 18:16:50,335 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2018-10-14 18:16:50,616 WARN L179 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2018-10-14 18:16:50,977 WARN L179 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2018-10-14 18:16:51,386 WARN L179 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2018-10-14 18:16:51,688 WARN L179 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2018-10-14 18:16:51,921 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2018-10-14 18:16:52,209 WARN L179 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2018-10-14 18:16:52,499 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2018-10-14 18:16:52,724 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2018-10-14 18:16:52,991 WARN L179 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2018-10-14 18:16:53,385 WARN L179 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2018-10-14 18:16:53,668 WARN L179 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2018-10-14 18:16:54,082 WARN L179 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 125 [2018-10-14 18:16:54,557 WARN L179 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 146 [2018-10-14 18:16:55,023 WARN L179 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 144 [2018-10-14 18:16:55,427 WARN L179 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 123 [2018-10-14 18:16:55,919 WARN L179 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 133 [2018-10-14 18:16:56,552 WARN L179 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 136 [2018-10-14 18:16:57,072 WARN L179 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 139 [2018-10-14 18:16:57,454 WARN L179 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 122 [2018-10-14 18:16:57,880 WARN L179 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 135 [2018-10-14 18:16:58,328 WARN L179 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 134 [2018-10-14 18:16:58,703 WARN L179 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 121 [2018-10-14 18:16:59,145 WARN L179 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 125 [2018-10-14 18:16:59,585 WARN L179 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 128 [2018-10-14 18:17:00,035 WARN L179 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 131 [2018-10-14 18:17:00,405 WARN L179 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 115 [2018-10-14 18:17:00,884 WARN L179 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 121 [2018-10-14 18:17:01,299 WARN L179 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 121 [2018-10-14 18:17:01,641 WARN L179 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 115 [2018-10-14 18:17:02,009 WARN L179 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 115 [2018-10-14 18:17:02,434 WARN L179 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 121 [2018-10-14 18:17:02,706 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2018-10-14 18:17:02,972 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2018-10-14 18:17:03,223 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-10-14 18:17:03,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:17:03,259 INFO L93 Difference]: Finished difference Result 156 states and 156 transitions. [2018-10-14 18:17:03,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-10-14 18:17:03,259 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 131 [2018-10-14 18:17:03,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:17:03,261 INFO L225 Difference]: With dead ends: 156 [2018-10-14 18:17:03,261 INFO L226 Difference]: Without dead ends: 156 [2018-10-14 18:17:03,264 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1042 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=1553, Invalid=6279, Unknown=0, NotChecked=0, Total=7832 [2018-10-14 18:17:03,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2018-10-14 18:17:03,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 145. [2018-10-14 18:17:03,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-10-14 18:17:03,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 145 transitions. [2018-10-14 18:17:03,271 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 145 transitions. Word has length 131 [2018-10-14 18:17:03,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:17:03,272 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 145 transitions. [2018-10-14 18:17:03,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-10-14 18:17:03,272 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 145 transitions. [2018-10-14 18:17:03,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-10-14 18:17:03,274 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:17:03,275 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:17:03,275 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:17:03,275 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:17:03,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1086124323, now seen corresponding path program 6 times [2018-10-14 18:17:03,276 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:17:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:17:04,468 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 11 [2018-10-14 18:17:04,844 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 40 [2018-10-14 18:17:05,987 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 43 [2018-10-14 18:17:08,096 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 213 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:17:08,096 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:17:08,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2018-10-14 18:17:08,097 INFO L460 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-10-14 18:17:08,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-10-14 18:17:08,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=2204, Unknown=0, NotChecked=0, Total=2352 [2018-10-14 18:17:08,099 INFO L87 Difference]: Start difference. First operand 145 states and 145 transitions. Second operand 49 states. [2018-10-14 18:17:09,765 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2018-10-14 18:17:10,064 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2018-10-14 18:17:10,376 WARN L179 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2018-10-14 18:17:10,736 WARN L179 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2018-10-14 18:17:11,325 WARN L179 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2018-10-14 18:17:11,948 WARN L179 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2018-10-14 18:17:12,262 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2018-10-14 18:17:12,620 WARN L179 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2018-10-14 18:17:12,995 WARN L179 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2018-10-14 18:17:13,289 WARN L179 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2018-10-14 18:17:13,846 WARN L179 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 156 [2018-10-14 18:17:14,637 WARN L179 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 159 [2018-10-14 18:17:15,298 WARN L179 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 162 [2018-10-14 18:17:16,069 WARN L179 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 145 [2018-10-14 18:17:16,913 WARN L179 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 172 [2018-10-14 18:17:17,507 WARN L179 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 172 [2018-10-14 18:17:17,957 WARN L179 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 145 [2018-10-14 18:17:18,585 WARN L179 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 164 [2018-10-14 18:17:19,387 WARN L179 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 167 [2018-10-14 18:17:20,085 WARN L179 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 170 [2018-10-14 18:17:20,612 WARN L179 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 152 [2018-10-14 18:17:21,211 WARN L179 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 173 [2018-10-14 18:17:21,831 WARN L179 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 168 [2018-10-14 18:17:22,316 WARN L179 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 147 [2018-10-14 18:17:22,950 WARN L179 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2018-10-14 18:17:23,541 WARN L179 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 156 [2018-10-14 18:17:24,133 WARN L179 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 159 [2018-10-14 18:17:24,609 WARN L179 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 145 [2018-10-14 18:17:25,149 WARN L179 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 158 [2018-10-14 18:17:25,666 WARN L179 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 152 [2018-10-14 18:17:26,131 WARN L179 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 139 [2018-10-14 18:17:26,731 WARN L179 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 145 [2018-10-14 18:17:27,274 WARN L179 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 148 [2018-10-14 18:17:27,825 WARN L179 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 151 [2018-10-14 18:17:28,302 WARN L179 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 138 [2018-10-14 18:17:28,807 WARN L179 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 144 [2018-10-14 18:17:29,281 WARN L179 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 139 [2018-10-14 18:17:29,716 WARN L179 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 133 [2018-10-14 18:17:30,255 WARN L179 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 139 [2018-10-14 18:17:30,555 WARN L179 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2018-10-14 18:17:30,842 WARN L179 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2018-10-14 18:17:31,150 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2018-10-14 18:17:31,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:17:31,214 INFO L93 Difference]: Finished difference Result 169 states and 169 transitions. [2018-10-14 18:17:31,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-10-14 18:17:31,215 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 144 [2018-10-14 18:17:31,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:17:31,217 INFO L225 Difference]: With dead ends: 169 [2018-10-14 18:17:31,217 INFO L226 Difference]: Without dead ends: 169 [2018-10-14 18:17:31,219 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1389 ImplicationChecksByTransitivity, 24.8s TimeCoverageRelationStatistics Valid=1877, Invalid=8023, Unknown=0, NotChecked=0, Total=9900 [2018-10-14 18:17:31,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2018-10-14 18:17:31,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 158. [2018-10-14 18:17:31,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-10-14 18:17:31,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 158 transitions. [2018-10-14 18:17:31,226 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 158 transitions. Word has length 144 [2018-10-14 18:17:31,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:17:31,226 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 158 transitions. [2018-10-14 18:17:31,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-10-14 18:17:31,227 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 158 transitions. [2018-10-14 18:17:31,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-10-14 18:17:31,229 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:17:31,229 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:17:31,229 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:17:31,230 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:17:31,230 INFO L82 PathProgramCache]: Analyzing trace with hash -596231299, now seen corresponding path program 7 times [2018-10-14 18:17:31,231 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:17:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:17:31,831 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 24 [2018-10-14 18:17:33,126 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 47 [2018-10-14 18:17:33,332 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 51 [2018-10-14 18:17:33,491 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2018-10-14 18:17:33,652 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2018-10-14 18:17:37,023 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 294 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:17:37,023 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:17:37,023 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54] total 54 [2018-10-14 18:17:37,024 INFO L460 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-10-14 18:17:37,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-10-14 18:17:37,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=2733, Unknown=0, NotChecked=0, Total=2862 [2018-10-14 18:17:37,025 INFO L87 Difference]: Start difference. First operand 158 states and 158 transitions. Second operand 54 states. [2018-10-14 18:17:38,744 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2018-10-14 18:17:38,991 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2018-10-14 18:17:39,343 WARN L179 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2018-10-14 18:17:39,709 WARN L179 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2018-10-14 18:17:40,105 WARN L179 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2018-10-14 18:17:40,725 WARN L179 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2018-10-14 18:17:41,181 WARN L179 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2018-10-14 18:17:41,553 WARN L179 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2018-10-14 18:17:42,052 WARN L179 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2018-10-14 18:17:42,492 WARN L179 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2018-10-14 18:17:42,834 WARN L179 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2018-10-14 18:17:43,505 WARN L179 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 172 [2018-10-14 18:17:44,117 WARN L179 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2018-10-14 18:17:44,580 WARN L179 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2018-10-14 18:17:45,174 WARN L179 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 164 [2018-10-14 18:17:45,987 WARN L179 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 196 [2018-10-14 18:17:46,408 WARN L179 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2018-10-14 18:17:46,736 WARN L179 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2018-10-14 18:17:47,422 WARN L179 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 167 [2018-10-14 18:17:48,010 WARN L179 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2018-10-14 18:17:48,426 WARN L179 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2018-10-14 18:17:48,782 WARN L179 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2018-10-14 18:17:49,199 WARN L179 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2018-10-14 18:17:49,606 WARN L179 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2018-10-14 18:17:49,937 WARN L179 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2018-10-14 18:17:50,530 WARN L179 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 166 [2018-10-14 18:17:51,115 WARN L179 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2018-10-14 18:17:51,527 WARN L179 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2018-10-14 18:17:51,876 WARN L179 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2018-10-14 18:17:52,319 WARN L179 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2018-10-14 18:17:52,726 WARN L179 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2018-10-14 18:17:53,038 WARN L179 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2018-10-14 18:17:53,399 WARN L179 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2018-10-14 18:17:53,941 WARN L179 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2018-10-14 18:17:54,318 WARN L179 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2018-10-14 18:17:54,651 WARN L179 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2018-10-14 18:17:55,036 WARN L179 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2018-10-14 18:17:55,390 WARN L179 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2018-10-14 18:17:55,685 WARN L179 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2018-10-14 18:17:56,226 WARN L179 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 147 [2018-10-14 18:17:56,753 WARN L179 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2018-10-14 18:17:57,159 WARN L179 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2018-10-14 18:17:57,526 WARN L179 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2018-10-14 18:17:57,878 WARN L179 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2018-10-14 18:17:58,212 WARN L179 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2018-10-14 18:17:58,497 WARN L179 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2018-10-14 18:17:59,104 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2018-10-14 18:17:59,451 WARN L179 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2018-10-14 18:17:59,734 WARN L179 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2018-10-14 18:18:00,059 WARN L179 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2018-10-14 18:18:00,708 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2018-10-14 18:18:00,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:18:00,806 INFO L93 Difference]: Finished difference Result 182 states and 182 transitions. [2018-10-14 18:18:00,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2018-10-14 18:18:00,807 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 157 [2018-10-14 18:18:00,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:18:00,809 INFO L225 Difference]: With dead ends: 182 [2018-10-14 18:18:00,809 INFO L226 Difference]: Without dead ends: 182 [2018-10-14 18:18:00,813 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1590 ImplicationChecksByTransitivity, 24.1s TimeCoverageRelationStatistics Valid=1730, Invalid=10926, Unknown=0, NotChecked=0, Total=12656 [2018-10-14 18:18:00,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-10-14 18:18:00,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 171. [2018-10-14 18:18:00,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2018-10-14 18:18:00,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 171 transitions. [2018-10-14 18:18:00,818 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 171 transitions. Word has length 157 [2018-10-14 18:18:00,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:18:00,819 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 171 transitions. [2018-10-14 18:18:00,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 54 states. [2018-10-14 18:18:00,819 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 171 transitions. [2018-10-14 18:18:00,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-10-14 18:18:00,822 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:18:00,822 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:18:00,822 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:18:00,822 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:18:00,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1503531875, now seen corresponding path program 8 times [2018-10-14 18:18:00,823 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:18:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:18:02,007 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 51 [2018-10-14 18:18:02,398 WARN L179 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2018-10-14 18:18:02,668 WARN L179 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2018-10-14 18:18:02,890 WARN L179 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2018-10-14 18:18:03,205 WARN L179 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 51 [2018-10-14 18:18:03,500 WARN L179 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2018-10-14 18:18:03,736 WARN L179 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2018-10-14 18:18:04,053 WARN L179 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 46 [2018-10-14 18:18:04,293 WARN L179 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 46 [2018-10-14 18:18:04,573 WARN L179 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2018-10-14 18:18:04,893 WARN L179 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 59 [2018-10-14 18:18:05,169 WARN L179 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 54 [2018-10-14 18:18:05,453 WARN L179 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 54 [2018-10-14 18:18:05,715 WARN L179 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 51 [2018-10-14 18:18:05,995 WARN L179 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 51 [2018-10-14 18:18:06,281 WARN L179 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 49 [2018-10-14 18:18:06,518 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 50 [2018-10-14 18:18:06,783 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 47 [2018-10-14 18:18:07,025 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 47 [2018-10-14 18:18:07,253 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2018-10-14 18:18:07,663 WARN L179 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2018-10-14 18:18:07,886 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 43 [2018-10-14 18:18:11,055 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 0 proven. 388 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:18:11,055 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:18:11,056 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [60] total 60 [2018-10-14 18:18:11,056 INFO L460 AbstractCegarLoop]: Interpolant automaton has 60 states [2018-10-14 18:18:11,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2018-10-14 18:18:11,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=3395, Unknown=0, NotChecked=0, Total=3540 [2018-10-14 18:18:11,058 INFO L87 Difference]: Start difference. First operand 171 states and 171 transitions. Second operand 60 states. [2018-10-14 18:18:13,380 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2018-10-14 18:18:13,790 WARN L179 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2018-10-14 18:18:14,225 WARN L179 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2018-10-14 18:18:14,729 WARN L179 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2018-10-14 18:18:15,466 WARN L179 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2018-10-14 18:18:16,007 WARN L179 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2018-10-14 18:18:16,433 WARN L179 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2018-10-14 18:18:16,947 WARN L179 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2018-10-14 18:18:17,467 WARN L179 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2018-10-14 18:18:17,954 WARN L179 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2018-10-14 18:18:18,747 WARN L179 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 195 [2018-10-14 18:18:19,486 WARN L179 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2018-10-14 18:18:20,065 WARN L179 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2018-10-14 18:18:20,817 WARN L179 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 187 [2018-10-14 18:18:21,703 WARN L179 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 225 [2018-10-14 18:18:22,236 WARN L179 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2018-10-14 18:18:22,629 WARN L179 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2018-10-14 18:18:23,152 WARN L179 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2018-10-14 18:18:23,864 WARN L179 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2018-10-14 18:18:24,377 WARN L179 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2018-10-14 18:18:24,791 WARN L179 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2018-10-14 18:18:25,312 WARN L179 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2018-10-14 18:18:25,797 WARN L179 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2018-10-14 18:18:26,179 WARN L179 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2018-10-14 18:18:26,913 WARN L179 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2018-10-14 18:18:27,639 WARN L179 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2018-10-14 18:18:28,203 WARN L179 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2018-10-14 18:18:28,630 WARN L179 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2018-10-14 18:18:29,109 WARN L179 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2018-10-14 18:18:29,581 WARN L179 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2018-10-14 18:18:29,961 WARN L179 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2018-10-14 18:18:30,424 WARN L179 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2018-10-14 18:18:31,129 WARN L179 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2018-10-14 18:18:31,610 WARN L179 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2018-10-14 18:18:32,007 WARN L179 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2018-10-14 18:18:32,472 WARN L179 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2018-10-14 18:18:32,934 WARN L179 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2018-10-14 18:18:33,329 WARN L179 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2018-10-14 18:18:33,992 WARN L179 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 172 [2018-10-14 18:18:34,656 WARN L179 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2018-10-14 18:18:35,114 WARN L179 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2018-10-14 18:18:35,496 WARN L179 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2018-10-14 18:18:35,918 WARN L179 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2018-10-14 18:18:36,366 WARN L179 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2018-10-14 18:18:36,710 WARN L179 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2018-10-14 18:18:37,122 WARN L179 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2018-10-14 18:18:37,767 WARN L179 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2018-10-14 18:18:38,246 WARN L179 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2018-10-14 18:18:38,638 WARN L179 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2018-10-14 18:18:39,041 WARN L179 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2018-10-14 18:18:39,433 WARN L179 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2018-10-14 18:18:39,771 WARN L179 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2018-10-14 18:18:40,438 WARN L179 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2018-10-14 18:18:40,825 WARN L179 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2018-10-14 18:18:41,173 WARN L179 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2018-10-14 18:18:41,551 WARN L179 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2018-10-14 18:18:42,318 WARN L179 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2018-10-14 18:18:42,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:18:42,433 INFO L93 Difference]: Finished difference Result 195 states and 195 transitions. [2018-10-14 18:18:42,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-10-14 18:18:42,434 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 170 [2018-10-14 18:18:42,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:18:42,436 INFO L225 Difference]: With dead ends: 195 [2018-10-14 18:18:42,436 INFO L226 Difference]: Without dead ends: 195 [2018-10-14 18:18:42,440 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2090 ImplicationChecksByTransitivity, 34.3s TimeCoverageRelationStatistics Valid=1960, Invalid=13790, Unknown=0, NotChecked=0, Total=15750 [2018-10-14 18:18:42,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2018-10-14 18:18:42,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 184. [2018-10-14 18:18:42,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2018-10-14 18:18:42,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 184 transitions. [2018-10-14 18:18:42,444 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 184 transitions. Word has length 170 [2018-10-14 18:18:42,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:18:42,444 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 184 transitions. [2018-10-14 18:18:42,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 60 states. [2018-10-14 18:18:42,444 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 184 transitions. [2018-10-14 18:18:42,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-10-14 18:18:42,447 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:18:42,447 INFO L375 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:18:42,447 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:18:42,447 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:18:42,447 INFO L82 PathProgramCache]: Analyzing trace with hash -445726403, now seen corresponding path program 9 times [2018-10-14 18:18:42,452 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:18:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:18:43,683 WARN L179 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 55 [2018-10-14 18:18:43,914 WARN L179 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 53 [2018-10-14 18:18:44,154 WARN L179 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 53 [2018-10-14 18:18:44,400 WARN L179 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 53 [2018-10-14 18:18:44,652 WARN L179 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 56 [2018-10-14 18:18:44,906 WARN L179 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 53 [2018-10-14 18:18:45,160 WARN L179 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 53 [2018-10-14 18:18:45,416 WARN L179 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 51 [2018-10-14 18:18:45,689 WARN L179 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 51 [2018-10-14 18:18:45,984 WARN L179 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 60 [2018-10-14 18:18:46,322 WARN L179 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 62 [2018-10-14 18:18:46,619 WARN L179 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 57 [2018-10-14 18:18:46,918 WARN L179 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 57 [2018-10-14 18:18:47,213 WARN L179 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 55 [2018-10-14 18:18:47,518 WARN L179 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 55 [2018-10-14 18:18:47,871 WARN L179 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 53 [2018-10-14 18:18:48,116 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 54 [2018-10-14 18:18:48,406 WARN L179 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 51 [2018-10-14 18:18:48,693 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 51 [2018-10-14 18:18:48,921 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 49 [2018-10-14 18:18:49,148 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 49 [2018-10-14 18:18:49,421 WARN L179 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 47 [2018-10-14 18:18:53,352 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:18:53,352 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:18:53,352 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [68] total 68 [2018-10-14 18:18:53,352 INFO L460 AbstractCegarLoop]: Interpolant automaton has 68 states [2018-10-14 18:18:53,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2018-10-14 18:18:53,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=4172, Unknown=0, NotChecked=0, Total=4556 [2018-10-14 18:18:53,354 INFO L87 Difference]: Start difference. First operand 184 states and 184 transitions. Second operand 68 states. [2018-10-14 18:18:55,653 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2018-10-14 18:18:56,104 WARN L179 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2018-10-14 18:18:56,590 WARN L179 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2018-10-14 18:18:57,119 WARN L179 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2018-10-14 18:18:57,910 WARN L179 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2018-10-14 18:18:58,526 WARN L179 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2018-10-14 18:18:59,057 WARN L179 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2018-10-14 18:18:59,611 WARN L179 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2018-10-14 18:19:00,189 WARN L179 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 237 [2018-10-14 18:19:00,647 WARN L179 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2018-10-14 18:19:01,180 WARN L179 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2018-10-14 18:19:01,894 WARN L179 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2018-10-14 18:19:02,458 WARN L179 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2018-10-14 18:19:03,157 WARN L179 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 203 [2018-10-14 18:19:04,062 WARN L179 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 247 [2018-10-14 18:19:04,969 WARN L179 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 244 [2018-10-14 18:19:05,705 WARN L179 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 200 [2018-10-14 18:19:06,618 WARN L179 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 210 [2018-10-14 18:19:07,715 WARN L179 SmtUtils]: Spent 751.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 213 [2018-10-14 18:19:08,698 WARN L179 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 216 [2018-10-14 18:19:09,467 WARN L179 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 203 [2018-10-14 18:19:10,297 WARN L179 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 242 [2018-10-14 18:19:11,204 WARN L179 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 241 [2018-10-14 18:19:11,977 WARN L179 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 202 [2018-10-14 18:19:12,854 WARN L179 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 217 [2018-10-14 18:19:13,774 WARN L179 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 220 [2018-10-14 18:19:14,807 WARN L179 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 223 [2018-10-14 18:19:15,474 WARN L179 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 196 [2018-10-14 18:19:16,274 WARN L179 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 228 [2018-10-14 18:19:17,133 WARN L179 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 226 [2018-10-14 18:19:17,871 WARN L179 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 194 [2018-10-14 18:19:18,668 WARN L179 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 198 [2018-10-14 18:19:19,562 WARN L179 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 201 [2018-10-14 18:19:20,374 WARN L179 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 204 [2018-10-14 18:19:21,032 WARN L179 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2018-10-14 18:19:21,825 WARN L179 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 218 [2018-10-14 18:19:22,621 WARN L179 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 217 [2018-10-14 18:19:23,299 WARN L179 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2018-10-14 18:19:24,059 WARN L179 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 198 [2018-10-14 18:19:24,937 WARN L179 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 201 [2018-10-14 18:19:25,734 WARN L179 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2018-10-14 18:19:26,410 WARN L179 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 185 [2018-10-14 18:19:27,165 WARN L179 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 206 [2018-10-14 18:19:27,962 WARN L179 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 205 [2018-10-14 18:19:28,655 WARN L179 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 184 [2018-10-14 18:19:29,419 WARN L179 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2018-10-14 18:19:30,184 WARN L179 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2018-10-14 18:19:30,943 WARN L179 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 194 [2018-10-14 18:19:31,594 WARN L179 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 177 [2018-10-14 18:19:32,291 WARN L179 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 190 [2018-10-14 18:19:33,019 WARN L179 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2018-10-14 18:19:33,694 WARN L179 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 176 [2018-10-14 18:19:34,424 WARN L179 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 180 [2018-10-14 18:19:35,207 WARN L179 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 183 [2018-10-14 18:19:35,947 WARN L179 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 186 [2018-10-14 18:19:36,607 WARN L179 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 170 [2018-10-14 18:19:37,291 WARN L179 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 176 [2018-10-14 18:19:37,997 WARN L179 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 176 [2018-10-14 18:19:38,637 WARN L179 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 170 [2018-10-14 18:19:39,309 WARN L179 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 170 [2018-10-14 18:19:40,113 WARN L179 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 176 [2018-10-14 18:19:40,560 WARN L179 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2018-10-14 18:19:40,967 WARN L179 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2018-10-14 18:19:41,427 WARN L179 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2018-10-14 18:19:41,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:19:41,487 INFO L93 Difference]: Finished difference Result 208 states and 208 transitions. [2018-10-14 18:19:41,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2018-10-14 18:19:41,487 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 183 [2018-10-14 18:19:41,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:19:41,489 INFO L225 Difference]: With dead ends: 208 [2018-10-14 18:19:41,489 INFO L226 Difference]: Without dead ends: 208 [2018-10-14 18:19:41,491 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3756 ImplicationChecksByTransitivity, 54.6s TimeCoverageRelationStatistics Valid=3639, Invalid=16101, Unknown=0, NotChecked=0, Total=19740 [2018-10-14 18:19:41,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2018-10-14 18:19:41,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 197. [2018-10-14 18:19:41,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2018-10-14 18:19:41,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 197 transitions. [2018-10-14 18:19:41,495 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 197 transitions. Word has length 183 [2018-10-14 18:19:41,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:19:41,496 INFO L481 AbstractCegarLoop]: Abstraction has 197 states and 197 transitions. [2018-10-14 18:19:41,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 68 states. [2018-10-14 18:19:41,496 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 197 transitions. [2018-10-14 18:19:41,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2018-10-14 18:19:41,497 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:19:41,498 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:19:41,498 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:19:41,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:19:41,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1136453027, now seen corresponding path program 10 times [2018-10-14 18:19:41,499 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:19:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:19:42,733 WARN L179 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 63 [2018-10-14 18:19:43,164 WARN L179 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 60 [2018-10-14 18:19:43,599 WARN L179 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 60 [2018-10-14 18:19:44,057 WARN L179 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 60 [2018-10-14 18:19:44,522 WARN L179 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 63 [2018-10-14 18:19:45,084 WARN L179 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 60 [2018-10-14 18:19:45,562 WARN L179 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 60 [2018-10-14 18:19:46,029 WARN L179 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 58 [2018-10-14 18:19:46,499 WARN L179 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 58 [2018-10-14 18:19:47,005 WARN L179 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 68 [2018-10-14 18:19:47,563 WARN L179 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 70 [2018-10-14 18:19:48,067 WARN L179 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 65 [2018-10-14 18:19:48,586 WARN L179 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 65 [2018-10-14 18:19:49,109 WARN L179 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 63 [2018-10-14 18:19:49,615 WARN L179 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 63 [2018-10-14 18:19:50,277 WARN L179 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 59 [2018-10-14 18:19:50,697 WARN L179 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 62 [2018-10-14 18:19:51,110 WARN L179 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 59 [2018-10-14 18:19:51,531 WARN L179 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 59 [2018-10-14 18:19:51,928 WARN L179 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 57 [2018-10-14 18:19:52,327 WARN L179 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 57 [2018-10-14 18:19:52,789 WARN L179 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 55 [2018-10-14 18:19:53,077 WARN L179 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 54 [2018-10-14 18:19:53,362 WARN L179 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 51 [2018-10-14 18:19:53,644 WARN L179 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 51 [2018-10-14 18:19:53,922 WARN L179 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 49 [2018-10-14 18:19:54,213 WARN L179 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 49 [2018-10-14 18:19:54,506 WARN L179 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 47 [2018-10-14 18:19:54,754 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 48 [2018-10-14 18:19:55,062 WARN L179 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2018-10-14 18:19:55,337 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2018-10-14 18:19:55,567 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2018-10-14 18:19:55,796 WARN L179 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2018-10-14 18:19:56,023 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2018-10-14 18:19:59,309 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 0 proven. 615 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:19:59,309 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:19:59,309 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [73] total 73 [2018-10-14 18:19:59,310 INFO L460 AbstractCegarLoop]: Interpolant automaton has 73 states [2018-10-14 18:19:59,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2018-10-14 18:19:59,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=396, Invalid=4860, Unknown=0, NotChecked=0, Total=5256 [2018-10-14 18:19:59,311 INFO L87 Difference]: Start difference. First operand 197 states and 197 transitions. Second operand 73 states. [2018-10-14 18:20:01,382 WARN L179 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2018-10-14 18:20:01,867 WARN L179 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2018-10-14 18:20:02,440 WARN L179 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2018-10-14 18:20:03,050 WARN L179 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 222 [2018-10-14 18:20:03,844 WARN L179 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2018-10-14 18:20:04,531 WARN L179 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2018-10-14 18:20:05,119 WARN L179 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2018-10-14 18:20:05,829 WARN L179 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2018-10-14 18:20:06,533 WARN L179 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2018-10-14 18:20:07,094 WARN L179 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2018-10-14 18:20:08,122 WARN L179 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 235 [2018-10-14 18:20:09,289 WARN L179 SmtUtils]: Spent 835.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 238 [2018-10-14 18:20:10,440 WARN L179 SmtUtils]: Spent 977.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 241 [2018-10-14 18:20:11,579 WARN L179 SmtUtils]: Spent 984.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 224 [2018-10-14 18:20:12,979 WARN L179 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 293 DAG size of output: 274 [2018-10-14 18:20:13,992 WARN L179 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 272 [2018-10-14 18:20:14,839 WARN L179 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2018-10-14 18:20:15,916 WARN L179 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 240 [2018-10-14 18:20:17,131 WARN L179 SmtUtils]: Spent 901.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 243 [2018-10-14 18:20:18,293 WARN L179 SmtUtils]: Spent 969.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 246 [2018-10-14 18:20:19,106 WARN L179 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 229 [2018-10-14 18:20:20,125 WARN L179 SmtUtils]: Spent 863.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 274 [2018-10-14 18:20:21,245 WARN L179 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 272 [2018-10-14 18:20:22,109 WARN L179 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 227 [2018-10-14 18:20:23,142 WARN L179 SmtUtils]: Spent 797.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 244 [2018-10-14 18:20:24,226 WARN L179 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 247 [2018-10-14 18:20:25,313 WARN L179 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 250 [2018-10-14 18:20:26,210 WARN L179 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 222 [2018-10-14 18:20:27,177 WARN L179 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 260 [2018-10-14 18:20:28,155 WARN L179 SmtUtils]: Spent 759.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 254 [2018-10-14 18:20:28,999 WARN L179 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 216 [2018-10-14 18:20:29,959 WARN L179 SmtUtils]: Spent 759.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 225 [2018-10-14 18:20:31,056 WARN L179 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 228 [2018-10-14 18:20:32,136 WARN L179 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 231 [2018-10-14 18:20:32,951 WARN L179 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 217 [2018-10-14 18:20:33,921 WARN L179 SmtUtils]: Spent 772.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 250 [2018-10-14 18:20:34,883 WARN L179 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 248 [2018-10-14 18:20:35,700 WARN L179 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 215 [2018-10-14 18:20:36,725 WARN L179 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 225 [2018-10-14 18:20:37,726 WARN L179 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 228 [2018-10-14 18:20:38,752 WARN L179 SmtUtils]: Spent 817.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 231 [2018-10-14 18:20:39,560 WARN L179 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 211 [2018-10-14 18:20:40,474 WARN L179 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 238 [2018-10-14 18:20:41,499 WARN L179 SmtUtils]: Spent 779.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 236 [2018-10-14 18:20:42,323 WARN L179 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 209 [2018-10-14 18:20:43,290 WARN L179 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 217 [2018-10-14 18:20:44,319 WARN L179 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 221 [2018-10-14 18:20:45,346 WARN L179 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 224 [2018-10-14 18:20:46,211 WARN L179 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 205 [2018-10-14 18:20:47,149 WARN L179 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 226 [2018-10-14 18:20:48,085 WARN L179 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 224 [2018-10-14 18:20:48,905 WARN L179 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 203 [2018-10-14 18:20:49,800 WARN L179 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 209 [2018-10-14 18:20:50,730 WARN L179 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 212 [2018-10-14 18:20:51,746 WARN L179 SmtUtils]: Spent 785.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 215 [2018-10-14 18:20:52,547 WARN L179 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 201 [2018-10-14 18:20:53,432 WARN L179 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 214 [2018-10-14 18:20:54,286 WARN L179 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 209 [2018-10-14 18:20:55,071 WARN L179 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 196 [2018-10-14 18:20:55,893 WARN L179 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 202 [2018-10-14 18:20:56,853 WARN L179 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 205 [2018-10-14 18:20:57,756 WARN L179 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 208 [2018-10-14 18:20:58,534 WARN L179 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 194 [2018-10-14 18:20:59,363 WARN L179 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 200 [2018-10-14 18:21:00,192 WARN L179 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 195 [2018-10-14 18:21:00,988 WARN L179 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 189 [2018-10-14 18:21:01,925 WARN L179 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 195 [2018-10-14 18:21:02,488 WARN L179 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2018-10-14 18:21:03,002 WARN L179 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2018-10-14 18:21:03,547 WARN L179 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2018-10-14 18:21:03,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:21:03,595 INFO L93 Difference]: Finished difference Result 221 states and 221 transitions. [2018-10-14 18:21:03,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2018-10-14 18:21:03,596 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 196 [2018-10-14 18:21:03,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:21:03,598 INFO L225 Difference]: With dead ends: 221 [2018-10-14 18:21:03,598 INFO L226 Difference]: Without dead ends: 221 [2018-10-14 18:21:03,601 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4495 ImplicationChecksByTransitivity, 78.3s TimeCoverageRelationStatistics Valid=4107, Invalid=18845, Unknown=0, NotChecked=0, Total=22952 [2018-10-14 18:21:03,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2018-10-14 18:21:03,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 210. [2018-10-14 18:21:03,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2018-10-14 18:21:03,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 210 transitions. [2018-10-14 18:21:03,605 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 210 transitions. Word has length 196 [2018-10-14 18:21:03,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:21:03,605 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 210 transitions. [2018-10-14 18:21:03,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 73 states. [2018-10-14 18:21:03,606 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 210 transitions. [2018-10-14 18:21:03,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-10-14 18:21:03,607 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:21:03,607 INFO L375 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:21:03,607 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:21:03,607 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:21:03,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1122473725, now seen corresponding path program 11 times [2018-10-14 18:21:03,608 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:21:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:21:05,117 WARN L179 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 67 [2018-10-14 18:21:05,744 WARN L179 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 65 [2018-10-14 18:21:06,362 WARN L179 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 65 [2018-10-14 18:21:07,136 WARN L179 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 65 [2018-10-14 18:21:07,778 WARN L179 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 68 [2018-10-14 18:21:08,431 WARN L179 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 65 [2018-10-14 18:21:09,097 WARN L179 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 65 [2018-10-14 18:21:09,744 WARN L179 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 63 [2018-10-14 18:21:10,421 WARN L179 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 63 [2018-10-14 18:21:11,199 WARN L179 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 74 [2018-10-14 18:21:12,094 WARN L179 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 76 [2018-10-14 18:21:12,864 WARN L179 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 71 [2018-10-14 18:21:13,611 WARN L179 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 71 [2018-10-14 18:21:14,387 WARN L179 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 69 [2018-10-14 18:21:15,140 WARN L179 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 69 [2018-10-14 18:21:15,844 WARN L179 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 67 [2018-10-14 18:21:16,400 WARN L179 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 68 [2018-10-14 18:21:17,036 WARN L179 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 65 [2018-10-14 18:21:17,594 WARN L179 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 65 [2018-10-14 18:21:18,131 WARN L179 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 63 [2018-10-14 18:21:18,680 WARN L179 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 63 [2018-10-14 18:21:19,302 WARN L179 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 61 [2018-10-14 18:21:19,626 WARN L179 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 60 [2018-10-14 18:21:19,963 WARN L179 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 57 [2018-10-14 18:21:20,296 WARN L179 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 57 [2018-10-14 18:21:20,621 WARN L179 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 55 [2018-10-14 18:21:20,976 WARN L179 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 55 [2018-10-14 18:21:21,395 WARN L179 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 53 [2018-10-14 18:21:21,699 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 54 [2018-10-14 18:21:22,049 WARN L179 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 51 [2018-10-14 18:21:22,354 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 51 [2018-10-14 18:21:22,624 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 49 [2018-10-14 18:21:22,881 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 49 [2018-10-14 18:21:23,184 WARN L179 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 47 [2018-10-14 18:21:28,267 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 748 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:21:28,268 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:21:28,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [79] total 79 [2018-10-14 18:21:28,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 79 states [2018-10-14 18:21:28,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2018-10-14 18:21:28,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=412, Invalid=5750, Unknown=0, NotChecked=0, Total=6162 [2018-10-14 18:21:28,269 INFO L87 Difference]: Start difference. First operand 210 states and 210 transitions. Second operand 79 states. [2018-10-14 18:21:30,824 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2018-10-14 18:21:31,226 WARN L179 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2018-10-14 18:21:31,820 WARN L179 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2018-10-14 18:21:32,544 WARN L179 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2018-10-14 18:21:33,268 WARN L179 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 235 [2018-10-14 18:21:34,341 WARN L179 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2018-10-14 18:21:35,149 WARN L179 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2018-10-14 18:21:35,788 WARN L179 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2018-10-14 18:21:36,571 WARN L179 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2018-10-14 18:21:37,418 WARN L179 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2018-10-14 18:21:38,055 WARN L179 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2018-10-14 18:21:39,212 WARN L179 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 251 [2018-10-14 18:21:40,704 WARN L179 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 254 [2018-10-14 18:21:41,973 WARN L179 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 270 DAG size of output: 257 [2018-10-14 18:21:42,996 WARN L179 SmtUtils]: Spent 847.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 243 [2018-10-14 18:21:44,150 WARN L179 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 299 [2018-10-14 18:21:45,342 WARN L179 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 296 [2018-10-14 18:21:46,277 WARN L179 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 239 [2018-10-14 18:21:47,390 WARN L179 SmtUtils]: Spent 856.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 248 [2018-10-14 18:21:48,839 WARN L179 SmtUtils]: Spent 940.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 251 [2018-10-14 18:21:50,123 WARN L179 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 267 DAG size of output: 254 [2018-10-14 18:21:51,037 WARN L179 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 242 [2018-10-14 18:21:52,174 WARN L179 SmtUtils]: Spent 965.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 292 [2018-10-14 18:21:53,470 WARN L179 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 294 DAG size of output: 284 [2018-10-14 18:21:54,388 WARN L179 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 234 [2018-10-14 18:21:55,613 WARN L179 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 267 [2018-10-14 18:21:57,094 WARN L179 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 284 DAG size of output: 270 [2018-10-14 18:21:58,528 WARN L179 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 289 DAG size of output: 273 [2018-10-14 18:21:59,476 WARN L179 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 241 [2018-10-14 18:22:00,590 WARN L179 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 297 DAG size of output: 285 [2018-10-14 18:22:01,793 WARN L179 SmtUtils]: Spent 918.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 279 [2018-10-14 18:22:02,780 WARN L179 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 235 [2018-10-14 18:22:04,008 WARN L179 SmtUtils]: Spent 929.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 241 [2018-10-14 18:22:05,242 WARN L179 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 244 [2018-10-14 18:22:06,534 WARN L179 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 263 DAG size of output: 247 [2018-10-14 18:22:07,503 WARN L179 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 236 [2018-10-14 18:22:08,730 WARN L179 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 287 DAG size of output: 275 [2018-10-14 18:22:09,867 WARN L179 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 270 [2018-10-14 18:22:10,829 WARN L179 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 231 [2018-10-14 18:22:11,942 WARN L179 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 248 [2018-10-14 18:22:13,155 WARN L179 SmtUtils]: Spent 944.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 251 [2018-10-14 18:22:14,419 WARN L179 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 269 DAG size of output: 254 [2018-10-14 18:22:15,381 WARN L179 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 229 [2018-10-14 18:22:16,497 WARN L179 SmtUtils]: Spent 896.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 261 [2018-10-14 18:22:17,623 WARN L179 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 255 [2018-10-14 18:22:18,677 WARN L179 SmtUtils]: Spent 807.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 223 [2018-10-14 18:22:19,751 WARN L179 SmtUtils]: Spent 822.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 229 [2018-10-14 18:22:20,950 WARN L179 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 232 [2018-10-14 18:22:22,099 WARN L179 SmtUtils]: Spent 906.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 235 [2018-10-14 18:22:23,007 WARN L179 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 225 [2018-10-14 18:22:24,136 WARN L179 SmtUtils]: Spent 889.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 251 [2018-10-14 18:22:25,245 WARN L179 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 245 [2018-10-14 18:22:26,181 WARN L179 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 219 [2018-10-14 18:22:27,219 WARN L179 SmtUtils]: Spent 772.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 229 [2018-10-14 18:22:28,315 WARN L179 SmtUtils]: Spent 820.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 232 [2018-10-14 18:22:29,482 WARN L179 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 235 [2018-10-14 18:22:30,420 WARN L179 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 218 [2018-10-14 18:22:31,473 WARN L179 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 239 [2018-10-14 18:22:32,515 WARN L179 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 234 [2018-10-14 18:22:33,405 WARN L179 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 213 [2018-10-14 18:22:34,443 WARN L179 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 220 [2018-10-14 18:22:35,846 WARN L179 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 232 DAG size of output: 223 [2018-10-14 18:22:37,296 WARN L179 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 236 DAG size of output: 228 [2018-10-14 18:22:38,180 WARN L179 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 211 [2018-10-14 18:22:39,236 WARN L179 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 224 [2018-10-14 18:22:40,212 WARN L179 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 218 [2018-10-14 18:22:41,096 WARN L179 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 205 [2018-10-14 18:22:42,006 WARN L179 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 209 [2018-10-14 18:22:42,977 WARN L179 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 214 [2018-10-14 18:22:43,988 WARN L179 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 217 [2018-10-14 18:22:44,858 WARN L179 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 199 [2018-10-14 18:22:45,772 WARN L179 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 205 [2018-10-14 18:22:46,691 WARN L179 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 205 [2018-10-14 18:22:47,540 WARN L179 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 199 [2018-10-14 18:22:48,496 WARN L179 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 205 [2018-10-14 18:22:49,130 WARN L179 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2018-10-14 18:22:49,694 WARN L179 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2018-10-14 18:22:50,276 WARN L179 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2018-10-14 18:22:50,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 18:22:50,353 INFO L93 Difference]: Finished difference Result 234 states and 234 transitions. [2018-10-14 18:22:50,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2018-10-14 18:22:50,354 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 209 [2018-10-14 18:22:50,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 18:22:50,355 INFO L225 Difference]: With dead ends: 234 [2018-10-14 18:22:50,355 INFO L226 Difference]: Without dead ends: 234 [2018-10-14 18:22:50,356 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5393 ImplicationChecksByTransitivity, 100.2s TimeCoverageRelationStatistics Valid=4521, Invalid=22539, Unknown=0, NotChecked=0, Total=27060 [2018-10-14 18:22:50,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2018-10-14 18:22:50,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 223. [2018-10-14 18:22:50,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2018-10-14 18:22:50,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 223 transitions. [2018-10-14 18:22:50,360 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 223 transitions. Word has length 209 [2018-10-14 18:22:50,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 18:22:50,360 INFO L481 AbstractCegarLoop]: Abstraction has 223 states and 223 transitions. [2018-10-14 18:22:50,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 79 states. [2018-10-14 18:22:50,361 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 223 transitions. [2018-10-14 18:22:50,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2018-10-14 18:22:50,362 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 18:22:50,362 INFO L375 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:22:50,362 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 18:22:50,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 18:22:50,363 INFO L82 PathProgramCache]: Analyzing trace with hash 2019387363, now seen corresponding path program 12 times [2018-10-14 18:22:50,363 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 18:22:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 18:22:52,234 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 11 [2018-10-14 18:22:53,631 WARN L179 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 393 DAG size of output: 74 [2018-10-14 18:22:54,817 WARN L179 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 388 DAG size of output: 71 [2018-10-14 18:22:55,818 WARN L179 SmtUtils]: Spent 891.00 ms on a formula simplification. DAG size of input: 388 DAG size of output: 73 [2018-10-14 18:22:56,863 WARN L179 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 388 DAG size of output: 73 [2018-10-14 18:22:57,932 WARN L179 SmtUtils]: Spent 938.00 ms on a formula simplification. DAG size of input: 391 DAG size of output: 76 [2018-10-14 18:22:59,034 WARN L179 SmtUtils]: Spent 928.00 ms on a formula simplification. DAG size of input: 388 DAG size of output: 73 [2018-10-14 18:23:00,212 WARN L179 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 388 DAG size of output: 73 [2018-10-14 18:23:01,289 WARN L179 SmtUtils]: Spent 918.00 ms on a formula simplification. DAG size of input: 386 DAG size of output: 71 [2018-10-14 18:23:02,418 WARN L179 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 386 DAG size of output: 71 [2018-10-14 18:23:03,741 WARN L179 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 398 DAG size of output: 80 [2018-10-14 18:23:05,135 WARN L179 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 411 DAG size of output: 82 [2018-10-14 18:23:06,401 WARN L179 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 395 DAG size of output: 77 [2018-10-14 18:23:07,680 WARN L179 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 395 DAG size of output: 77 [2018-10-14 18:23:08,934 WARN L179 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 393 DAG size of output: 75 [2018-10-14 18:23:10,239 WARN L179 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 393 DAG size of output: 75 [2018-10-14 18:23:11,395 WARN L179 SmtUtils]: Spent 957.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 73 [2018-10-14 18:23:12,387 WARN L179 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 74 [2018-10-14 18:23:13,332 WARN L179 SmtUtils]: Spent 757.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 71 [2018-10-14 18:23:14,293 WARN L179 SmtUtils]: Spent 767.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 71 [2018-10-14 18:23:15,367 WARN L179 SmtUtils]: Spent 855.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 69 [2018-10-14 18:23:16,234 WARN L179 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 72 [2018-10-14 18:23:17,262 WARN L179 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 67 [2018-10-14 18:23:17,818 WARN L179 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 68 [2018-10-14 18:23:18,377 WARN L179 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 65 [2018-10-14 18:23:18,946 WARN L179 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 65 [2018-10-14 18:23:19,496 WARN L179 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 63 [2018-10-14 18:23:20,129 WARN L179 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 63 [2018-10-14 18:23:20,782 WARN L179 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 59 [2018-10-14 18:23:21,241 WARN L179 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 62 [2018-10-14 18:23:21,679 WARN L179 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 59 [2018-10-14 18:23:22,124 WARN L179 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 59 [2018-10-14 18:23:22,571 WARN L179 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 57 [2018-10-14 18:23:23,015 WARN L179 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 57 [2018-10-14 18:23:23,517 WARN L179 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 55 [2018-10-14 18:23:23,832 WARN L179 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 54 [2018-10-14 18:23:24,145 WARN L179 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 51 [2018-10-14 18:23:24,462 WARN L179 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 51 [2018-10-14 18:23:24,799 WARN L179 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 49 [2018-10-14 18:23:25,189 WARN L179 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 49 [2018-10-14 18:23:25,499 WARN L179 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 47 [2018-10-14 18:23:25,767 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 48 [2018-10-14 18:23:26,038 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2018-10-14 18:23:26,310 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2018-10-14 18:23:26,576 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2018-10-14 18:23:26,865 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2018-10-14 18:23:27,112 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2018-10-14 18:23:31,588 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 0 proven. 894 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 18:23:31,588 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 18:23:31,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [85] total 85 [2018-10-14 18:23:31,589 INFO L460 AbstractCegarLoop]: Interpolant automaton has 85 states [2018-10-14 18:23:31,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2018-10-14 18:23:31,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=428, Invalid=6712, Unknown=0, NotChecked=0, Total=7140 [2018-10-14 18:23:31,589 INFO L87 Difference]: Start difference. First operand 223 states and 223 transitions. Second operand 85 states. [2018-10-14 18:23:34,645 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2018-10-14 18:23:35,180 WARN L179 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2018-10-14 18:23:35,896 WARN L179 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2018-10-14 18:23:36,646 WARN L179 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2018-10-14 18:23:37,499 WARN L179 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2018-10-14 18:23:38,785 WARN L179 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2018-10-14 18:23:39,741 WARN L179 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2018-10-14 18:23:40,558 WARN L179 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2018-10-14 18:23:41,459 WARN L179 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2018-10-14 18:23:42,379 WARN L179 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2018-10-14 18:23:43,095 WARN L179 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 263 [2018-10-14 18:23:44,398 WARN L179 SmtUtils]: Spent 954.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 270 [2018-10-14 18:23:46,175 WARN L179 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 283 DAG size of output: 273 [2018-10-14 18:23:47,633 WARN L179 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 288 DAG size of output: 276 [2018-10-14 18:23:48,726 WARN L179 SmtUtils]: Spent 877.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 263 [2018-10-14 18:23:50,088 WARN L179 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 343 DAG size of output: 321 [2018-10-14 18:23:51,645 WARN L179 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 329 DAG size of output: 315 [2018-10-14 18:23:52,788 WARN L179 SmtUtils]: Spent 840.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 257 [2018-10-14 18:23:54,225 WARN L179 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 281 DAG size of output: 270 [2018-10-14 18:23:56,043 WARN L179 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 287 DAG size of output: 273 [2018-10-14 18:23:57,597 WARN L179 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 293 DAG size of output: 276 [2018-10-14 18:23:58,723 WARN L179 SmtUtils]: Spent 906.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 254 [2018-10-14 18:24:00,130 WARN L179 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 331 DAG size of output: 309 [2018-10-14 18:24:01,677 WARN L179 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 323 DAG size of output: 309 [2018-10-14 18:24:02,852 WARN L179 SmtUtils]: Spent 840.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 252 [2018-10-14 18:24:04,287 WARN L179 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 296 DAG size of output: 282 [2018-10-14 18:24:06,227 WARN L179 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 302 DAG size of output: 286 [2018-10-14 18:24:07,842 WARN L179 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 308 DAG size of output: 289 [2018-10-14 18:24:08,920 WARN L179 SmtUtils]: Spent 820.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 248 [2018-10-14 18:24:10,264 WARN L179 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 323 DAG size of output: 296 [2018-10-14 18:24:11,715 WARN L179 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 313 DAG size of output: 295 [2018-10-14 18:24:12,825 WARN L179 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 247 [2018-10-14 18:24:14,193 WARN L179 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 279 DAG size of output: 262 [2018-10-14 18:24:15,996 WARN L179 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 285 DAG size of output: 266 [2018-10-14 18:24:17,579 WARN L179 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 291 DAG size of output: 269 [2018-10-14 18:24:18,736 WARN L179 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 249 [2018-10-14 18:24:20,135 WARN L179 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 321 DAG size of output: 292 [2018-10-14 18:24:21,643 WARN L179 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 313 DAG size of output: 295 [2018-10-14 18:24:22,797 WARN L179 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 252 [2018-10-14 18:24:24,220 WARN L179 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 283 DAG size of output: 269 [2018-10-14 18:24:25,651 WARN L179 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 289 DAG size of output: 270 [2018-10-14 18:24:27,153 WARN L179 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 295 DAG size of output: 273 [2018-10-14 18:24:28,241 WARN L179 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 242 [2018-10-14 18:24:29,517 WARN L179 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 307 DAG size of output: 278 [2018-10-14 18:24:30,884 WARN L179 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 299 DAG size of output: 279 [2018-10-14 18:24:32,611 WARN L179 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 253 DAG size of output: 243 [2018-10-14 18:24:33,829 WARN L179 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 249 [2018-10-14 18:24:35,140 WARN L179 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 271 DAG size of output: 252 [2018-10-14 18:24:36,547 WARN L179 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 277 DAG size of output: 255 [2018-10-14 18:24:37,655 WARN L179 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 238 [2018-10-14 18:24:38,944 WARN L179 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 297 DAG size of output: 269 [2018-10-14 18:24:40,237 WARN L179 SmtUtils]: Spent 967.00 ms on a formula simplification. DAG size of input: 289 DAG size of output: 271