java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 07:32:46,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 07:32:46,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 07:32:46,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 07:32:46,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 07:32:46,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 07:32:46,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 07:32:46,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 07:32:46,407 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 07:32:46,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 07:32:46,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 07:32:46,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 07:32:46,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 07:32:46,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 07:32:46,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 07:32:46,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 07:32:46,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 07:32:46,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 07:32:46,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 07:32:46,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 07:32:46,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 07:32:46,421 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 07:32:46,422 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 07:32:46,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 07:32:46,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 07:32:46,425 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 07:32:46,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 07:32:46,426 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 07:32:46,426 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 07:32:46,427 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 07:32:46,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 07:32:46,428 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 07:32:46,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 07:32:46,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 07:32:46,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 07:32:46,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 07:32:46,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 07:32:46,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 07:32:46,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 07:32:46,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 07:32:46,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 07:32:46,434 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 07:32:46,459 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 07:32:46,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 07:32:46,460 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 07:32:46,460 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 07:32:46,460 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 07:32:46,461 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 07:32:46,461 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 07:32:46,461 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 07:32:46,461 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 07:32:46,461 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 07:32:46,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 07:32:46,462 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 07:32:46,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 07:32:46,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 07:32:46,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 07:32:46,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 07:32:46,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 07:32:46,463 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 07:32:46,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 07:32:46,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 07:32:46,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 07:32:46,464 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 07:32:46,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 07:32:46,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 07:32:46,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 07:32:46,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 07:32:46,465 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 07:32:46,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 07:32:46,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 07:32:46,466 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 07:32:46,493 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 07:32:46,505 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 07:32:46,508 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 07:32:46,510 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 07:32:46,510 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 07:32:46,511 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2019-09-10 07:32:46,569 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09dce39de/ac099d68e04f4db69e3628fcb67fc8fe/FLAG15bc17740 [2019-09-10 07:32:47,075 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 07:32:47,075 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2019-09-10 07:32:47,087 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09dce39de/ac099d68e04f4db69e3628fcb67fc8fe/FLAG15bc17740 [2019-09-10 07:32:47,336 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09dce39de/ac099d68e04f4db69e3628fcb67fc8fe [2019-09-10 07:32:47,345 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 07:32:47,346 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 07:32:47,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 07:32:47,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 07:32:47,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 07:32:47,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 07:32:47" (1/1) ... [2019-09-10 07:32:47,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a8d3c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:32:47, skipping insertion in model container [2019-09-10 07:32:47,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 07:32:47" (1/1) ... [2019-09-10 07:32:47,363 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 07:32:47,432 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 07:32:47,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 07:32:47,914 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 07:32:48,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 07:32:48,048 INFO L192 MainTranslator]: Completed translation [2019-09-10 07:32:48,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:32:48 WrapperNode [2019-09-10 07:32:48,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 07:32:48,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 07:32:48,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 07:32:48,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 07:32:48,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:32:48" (1/1) ... [2019-09-10 07:32:48,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:32:48" (1/1) ... [2019-09-10 07:32:48,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:32:48" (1/1) ... [2019-09-10 07:32:48,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:32:48" (1/1) ... [2019-09-10 07:32:48,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:32:48" (1/1) ... [2019-09-10 07:32:48,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:32:48" (1/1) ... [2019-09-10 07:32:48,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:32:48" (1/1) ... [2019-09-10 07:32:48,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 07:32:48,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 07:32:48,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 07:32:48,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 07:32:48,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:32:48" (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:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 07:32:48,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 07:32:48,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 07:32:48,229 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 07:32:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 07:32:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-10 07:32:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-10 07:32:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-10 07:32:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 07:32:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-10 07:32:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-10 07:32:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-10 07:32:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-10 07:32:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-10 07:32:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-10 07:32:48,233 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-10 07:32:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 07:32:48,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 07:32:48,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 07:32:49,492 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 07:32:49,493 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 07:32:49,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 07:32:49 BoogieIcfgContainer [2019-09-10 07:32:49,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 07:32:49,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 07:32:49,495 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 07:32:49,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 07:32:49,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 07:32:47" (1/3) ... [2019-09-10 07:32:49,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f914a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 07:32:49, skipping insertion in model container [2019-09-10 07:32:49,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:32:48" (2/3) ... [2019-09-10 07:32:49,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f914a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 07:32:49, skipping insertion in model container [2019-09-10 07:32:49,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 07:32:49" (3/3) ... [2019-09-10 07:32:49,502 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2019-09-10 07:32:49,511 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 07:32:49,519 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-09-10 07:32:49,535 INFO L252 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-09-10 07:32:49,563 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 07:32:49,563 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 07:32:49,563 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 07:32:49,563 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 07:32:49,564 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 07:32:49,564 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 07:32:49,564 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 07:32:49,564 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 07:32:49,585 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states. [2019-09-10 07:32:49,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-10 07:32:49,600 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:32:49,601 INFO L399 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] [2019-09-10 07:32:49,604 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:32:49,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:32:49,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1048414333, now seen corresponding path program 1 times [2019-09-10 07:32:49,612 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:32:49,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:32:49,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:32:49,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:32:49,673 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:32:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:32:50,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:32:50,091 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:32:50,091 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:32:50,092 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:32:50,100 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:32:50,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:32:50,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:32:50,121 INFO L87 Difference]: Start difference. First operand 212 states. Second operand 5 states. [2019-09-10 07:32:50,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:32:50,441 INFO L93 Difference]: Finished difference Result 191 states and 307 transitions. [2019-09-10 07:32:50,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:32:50,443 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2019-09-10 07:32:50,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:32:50,455 INFO L225 Difference]: With dead ends: 191 [2019-09-10 07:32:50,455 INFO L226 Difference]: Without dead ends: 179 [2019-09-10 07:32:50,457 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:32:50,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2019-09-10 07:32:50,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2019-09-10 07:32:50,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2019-09-10 07:32:50,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 220 transitions. [2019-09-10 07:32:50,504 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 220 transitions. Word has length 51 [2019-09-10 07:32:50,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:32:50,504 INFO L475 AbstractCegarLoop]: Abstraction has 179 states and 220 transitions. [2019-09-10 07:32:50,504 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:32:50,504 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 220 transitions. [2019-09-10 07:32:50,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 07:32:50,507 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:32:50,507 INFO L399 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] [2019-09-10 07:32:50,508 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:32:50,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:32:50,508 INFO L82 PathProgramCache]: Analyzing trace with hash 314314412, now seen corresponding path program 1 times [2019-09-10 07:32:50,508 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:32:50,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:32:50,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:32:50,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:32:50,511 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:32:50,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:32:50,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:32:50,679 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:32:50,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:32:50,679 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:32:50,683 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:32:50,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:32:50,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:32:50,684 INFO L87 Difference]: Start difference. First operand 179 states and 220 transitions. Second operand 5 states. [2019-09-10 07:32:50,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:32:50,904 INFO L93 Difference]: Finished difference Result 169 states and 207 transitions. [2019-09-10 07:32:50,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:32:50,905 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2019-09-10 07:32:50,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:32:50,907 INFO L225 Difference]: With dead ends: 169 [2019-09-10 07:32:50,907 INFO L226 Difference]: Without dead ends: 169 [2019-09-10 07:32:50,908 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:32:50,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2019-09-10 07:32:50,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2019-09-10 07:32:50,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2019-09-10 07:32:50,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 207 transitions. [2019-09-10 07:32:50,921 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 207 transitions. Word has length 52 [2019-09-10 07:32:50,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:32:50,921 INFO L475 AbstractCegarLoop]: Abstraction has 169 states and 207 transitions. [2019-09-10 07:32:50,921 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:32:50,921 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 207 transitions. [2019-09-10 07:32:50,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-09-10 07:32:50,924 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:32:50,924 INFO L399 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] [2019-09-10 07:32:50,924 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:32:50,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:32:50,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1548947995, now seen corresponding path program 1 times [2019-09-10 07:32:50,925 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:32:50,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:32:50,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:32:50,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:32:50,928 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:32:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:32:51,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:32:51,089 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:32:51,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:32:51,089 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:32:51,090 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:32:51,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:32:51,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:32:51,091 INFO L87 Difference]: Start difference. First operand 169 states and 207 transitions. Second operand 5 states. [2019-09-10 07:32:51,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:32:51,243 INFO L93 Difference]: Finished difference Result 161 states and 197 transitions. [2019-09-10 07:32:51,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:32:51,244 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2019-09-10 07:32:51,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:32:51,246 INFO L225 Difference]: With dead ends: 161 [2019-09-10 07:32:51,246 INFO L226 Difference]: Without dead ends: 161 [2019-09-10 07:32:51,246 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:32:51,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2019-09-10 07:32:51,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2019-09-10 07:32:51,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2019-09-10 07:32:51,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 197 transitions. [2019-09-10 07:32:51,256 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 197 transitions. Word has length 53 [2019-09-10 07:32:51,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:32:51,257 INFO L475 AbstractCegarLoop]: Abstraction has 161 states and 197 transitions. [2019-09-10 07:32:51,257 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:32:51,257 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 197 transitions. [2019-09-10 07:32:51,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-09-10 07:32:51,259 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:32:51,259 INFO L399 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] [2019-09-10 07:32:51,259 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:32:51,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:32:51,260 INFO L82 PathProgramCache]: Analyzing trace with hash -911204178, now seen corresponding path program 1 times [2019-09-10 07:32:51,264 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:32:51,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:32:51,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:32:51,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:32:51,266 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:32:51,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:32:51,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:32:51,505 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:32:51,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 07:32:51,505 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:32:51,505 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 07:32:51,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 07:32:51,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-10 07:32:51,507 INFO L87 Difference]: Start difference. First operand 161 states and 197 transitions. Second operand 9 states. [2019-09-10 07:32:52,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:32:52,231 INFO L93 Difference]: Finished difference Result 331 states and 430 transitions. [2019-09-10 07:32:52,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 07:32:52,232 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2019-09-10 07:32:52,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:32:52,234 INFO L225 Difference]: With dead ends: 331 [2019-09-10 07:32:52,235 INFO L226 Difference]: Without dead ends: 331 [2019-09-10 07:32:52,235 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2019-09-10 07:32:52,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2019-09-10 07:32:52,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 161. [2019-09-10 07:32:52,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2019-09-10 07:32:52,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 196 transitions. [2019-09-10 07:32:52,246 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 196 transitions. Word has length 54 [2019-09-10 07:32:52,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:32:52,247 INFO L475 AbstractCegarLoop]: Abstraction has 161 states and 196 transitions. [2019-09-10 07:32:52,247 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 07:32:52,247 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 196 transitions. [2019-09-10 07:32:52,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-09-10 07:32:52,248 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:32:52,249 INFO L399 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] [2019-09-10 07:32:52,249 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:32:52,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:32:52,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1468636978, now seen corresponding path program 1 times [2019-09-10 07:32:52,250 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:32:52,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:32:52,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:32:52,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:32:52,251 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:32:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:32:52,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:32:52,411 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:32:52,411 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 07:32:52,411 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:32:52,411 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 07:32:52,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 07:32:52,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-10 07:32:52,412 INFO L87 Difference]: Start difference. First operand 161 states and 196 transitions. Second operand 9 states. [2019-09-10 07:32:53,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:32:53,139 INFO L93 Difference]: Finished difference Result 335 states and 435 transitions. [2019-09-10 07:32:53,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 07:32:53,140 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2019-09-10 07:32:53,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:32:53,142 INFO L225 Difference]: With dead ends: 335 [2019-09-10 07:32:53,143 INFO L226 Difference]: Without dead ends: 335 [2019-09-10 07:32:53,143 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2019-09-10 07:32:53,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2019-09-10 07:32:53,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 161. [2019-09-10 07:32:53,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2019-09-10 07:32:53,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 195 transitions. [2019-09-10 07:32:53,163 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 195 transitions. Word has length 54 [2019-09-10 07:32:53,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:32:53,164 INFO L475 AbstractCegarLoop]: Abstraction has 161 states and 195 transitions. [2019-09-10 07:32:53,164 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 07:32:53,164 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 195 transitions. [2019-09-10 07:32:53,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-09-10 07:32:53,168 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:32:53,168 INFO L399 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] [2019-09-10 07:32:53,168 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:32:53,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:32:53,169 INFO L82 PathProgramCache]: Analyzing trace with hash 52430183, now seen corresponding path program 1 times [2019-09-10 07:32:53,169 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:32:53,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:32:53,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:32:53,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:32:53,176 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:32:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:32:53,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:32:53,329 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:32:53,329 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 07:32:53,329 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:32:53,330 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 07:32:53,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 07:32:53,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 07:32:53,331 INFO L87 Difference]: Start difference. First operand 161 states and 195 transitions. Second operand 8 states. [2019-09-10 07:32:53,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:32:53,662 INFO L93 Difference]: Finished difference Result 233 states and 283 transitions. [2019-09-10 07:32:53,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 07:32:53,662 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2019-09-10 07:32:53,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:32:53,664 INFO L225 Difference]: With dead ends: 233 [2019-09-10 07:32:53,664 INFO L226 Difference]: Without dead ends: 233 [2019-09-10 07:32:53,665 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2019-09-10 07:32:53,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2019-09-10 07:32:53,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 161. [2019-09-10 07:32:53,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2019-09-10 07:32:53,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2019-09-10 07:32:53,670 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 54 [2019-09-10 07:32:53,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:32:53,671 INFO L475 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2019-09-10 07:32:53,671 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 07:32:53,671 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2019-09-10 07:32:53,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-10 07:32:53,673 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:32:53,673 INFO L399 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] [2019-09-10 07:32:53,673 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:32:53,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:32:53,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1510346154, now seen corresponding path program 1 times [2019-09-10 07:32:53,674 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:32:53,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:32:53,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:32:53,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:32:53,675 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:32:53,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:32:54,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:32:54,446 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:32:54,446 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-09-10 07:32:54,446 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:32:54,447 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-10 07:32:54,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-10 07:32:54,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2019-09-10 07:32:54,448 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand 16 states. [2019-09-10 07:32:55,062 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-10 07:32:56,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:32:56,195 INFO L93 Difference]: Finished difference Result 286 states and 344 transitions. [2019-09-10 07:32:56,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-10 07:32:56,196 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 56 [2019-09-10 07:32:56,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:32:56,198 INFO L225 Difference]: With dead ends: 286 [2019-09-10 07:32:56,198 INFO L226 Difference]: Without dead ends: 286 [2019-09-10 07:32:56,199 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=194, Invalid=562, Unknown=0, NotChecked=0, Total=756 [2019-09-10 07:32:56,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2019-09-10 07:32:56,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 171. [2019-09-10 07:32:56,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2019-09-10 07:32:56,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 209 transitions. [2019-09-10 07:32:56,206 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 209 transitions. Word has length 56 [2019-09-10 07:32:56,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:32:56,206 INFO L475 AbstractCegarLoop]: Abstraction has 171 states and 209 transitions. [2019-09-10 07:32:56,207 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-10 07:32:56,207 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 209 transitions. [2019-09-10 07:32:56,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-10 07:32:56,208 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:32:56,208 INFO L399 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] [2019-09-10 07:32:56,208 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:32:56,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:32:56,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1148696630, now seen corresponding path program 1 times [2019-09-10 07:32:56,209 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:32:56,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:32:56,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:32:56,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:32:56,211 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:32:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:32:56,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:32:56,761 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:32:56,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-09-10 07:32:56,761 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:32:56,761 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-10 07:32:56,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-10 07:32:56,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2019-09-10 07:32:56,762 INFO L87 Difference]: Start difference. First operand 171 states and 209 transitions. Second operand 15 states. [2019-09-10 07:32:58,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:32:58,350 INFO L93 Difference]: Finished difference Result 324 states and 419 transitions. [2019-09-10 07:32:58,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-10 07:32:58,351 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 56 [2019-09-10 07:32:58,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:32:58,354 INFO L225 Difference]: With dead ends: 324 [2019-09-10 07:32:58,354 INFO L226 Difference]: Without dead ends: 324 [2019-09-10 07:32:58,355 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=178, Invalid=472, Unknown=0, NotChecked=0, Total=650 [2019-09-10 07:32:58,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2019-09-10 07:32:58,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 160. [2019-09-10 07:32:58,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-09-10 07:32:58,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 195 transitions. [2019-09-10 07:32:58,361 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 195 transitions. Word has length 56 [2019-09-10 07:32:58,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:32:58,361 INFO L475 AbstractCegarLoop]: Abstraction has 160 states and 195 transitions. [2019-09-10 07:32:58,361 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-10 07:32:58,361 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 195 transitions. [2019-09-10 07:32:58,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 07:32:58,362 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:32:58,362 INFO L399 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] [2019-09-10 07:32:58,363 INFO L418 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:32:58,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:32:58,363 INFO L82 PathProgramCache]: Analyzing trace with hash 129284665, now seen corresponding path program 1 times [2019-09-10 07:32:58,363 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:32:58,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:32:58,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:32:58,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:32:58,365 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:32:58,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:32:58,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:32:58,500 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:32:58,501 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 07:32:58,501 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:32:58,501 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 07:32:58,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 07:32:58,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-10 07:32:58,502 INFO L87 Difference]: Start difference. First operand 160 states and 195 transitions. Second operand 9 states. [2019-09-10 07:32:59,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:32:59,192 INFO L93 Difference]: Finished difference Result 320 states and 414 transitions. [2019-09-10 07:32:59,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 07:32:59,192 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2019-09-10 07:32:59,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:32:59,194 INFO L225 Difference]: With dead ends: 320 [2019-09-10 07:32:59,194 INFO L226 Difference]: Without dead ends: 320 [2019-09-10 07:32:59,195 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2019-09-10 07:32:59,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2019-09-10 07:32:59,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 160. [2019-09-10 07:32:59,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-09-10 07:32:59,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 193 transitions. [2019-09-10 07:32:59,200 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 193 transitions. Word has length 57 [2019-09-10 07:32:59,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:32:59,201 INFO L475 AbstractCegarLoop]: Abstraction has 160 states and 193 transitions. [2019-09-10 07:32:59,201 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 07:32:59,201 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 193 transitions. [2019-09-10 07:32:59,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 07:32:59,202 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:32:59,202 INFO L399 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] [2019-09-10 07:32:59,202 INFO L418 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:32:59,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:32:59,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1929422544, now seen corresponding path program 1 times [2019-09-10 07:32:59,203 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:32:59,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:32:59,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:32:59,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:32:59,204 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:32:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:32:59,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:32:59,319 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:32:59,319 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 07:32:59,320 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:32:59,320 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 07:32:59,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 07:32:59,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-10 07:32:59,321 INFO L87 Difference]: Start difference. First operand 160 states and 193 transitions. Second operand 9 states. [2019-09-10 07:32:59,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:32:59,795 INFO L93 Difference]: Finished difference Result 224 states and 277 transitions. [2019-09-10 07:32:59,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-10 07:32:59,800 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2019-09-10 07:32:59,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:32:59,801 INFO L225 Difference]: With dead ends: 224 [2019-09-10 07:32:59,801 INFO L226 Difference]: Without dead ends: 224 [2019-09-10 07:32:59,802 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2019-09-10 07:32:59,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2019-09-10 07:32:59,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 160. [2019-09-10 07:32:59,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-09-10 07:32:59,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 191 transitions. [2019-09-10 07:32:59,808 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 191 transitions. Word has length 57 [2019-09-10 07:32:59,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:32:59,808 INFO L475 AbstractCegarLoop]: Abstraction has 160 states and 191 transitions. [2019-09-10 07:32:59,809 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 07:32:59,809 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 191 transitions. [2019-09-10 07:32:59,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 07:32:59,809 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:32:59,810 INFO L399 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] [2019-09-10 07:32:59,810 INFO L418 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:32:59,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:32:59,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1236153109, now seen corresponding path program 1 times [2019-09-10 07:32:59,813 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:32:59,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:32:59,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:32:59,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:32:59,814 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:32:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:00,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:00,486 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:00,486 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-09-10 07:33:00,486 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:00,487 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-10 07:33:00,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-10 07:33:00,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2019-09-10 07:33:00,487 INFO L87 Difference]: Start difference. First operand 160 states and 191 transitions. Second operand 15 states. [2019-09-10 07:33:01,045 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2019-09-10 07:33:01,187 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2019-09-10 07:33:01,337 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2019-09-10 07:33:01,512 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2019-09-10 07:33:01,853 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 33 [2019-09-10 07:33:02,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:02,486 INFO L93 Difference]: Finished difference Result 420 states and 552 transitions. [2019-09-10 07:33:02,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-10 07:33:02,499 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 57 [2019-09-10 07:33:02,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:02,502 INFO L225 Difference]: With dead ends: 420 [2019-09-10 07:33:02,502 INFO L226 Difference]: Without dead ends: 420 [2019-09-10 07:33:02,503 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2019-09-10 07:33:02,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2019-09-10 07:33:02,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 152. [2019-09-10 07:33:02,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-09-10 07:33:02,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 181 transitions. [2019-09-10 07:33:02,509 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 181 transitions. Word has length 57 [2019-09-10 07:33:02,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:02,509 INFO L475 AbstractCegarLoop]: Abstraction has 152 states and 181 transitions. [2019-09-10 07:33:02,509 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-10 07:33:02,510 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 181 transitions. [2019-09-10 07:33:02,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 07:33:02,510 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:02,510 INFO L399 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] [2019-09-10 07:33:02,511 INFO L418 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:02,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:02,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1017147876, now seen corresponding path program 1 times [2019-09-10 07:33:02,511 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:02,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:02,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:02,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:02,513 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:03,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:03,152 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:03,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-09-10 07:33:03,152 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:03,152 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-10 07:33:03,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-10 07:33:03,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2019-09-10 07:33:03,153 INFO L87 Difference]: Start difference. First operand 152 states and 181 transitions. Second operand 16 states. [2019-09-10 07:33:03,782 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2019-09-10 07:33:04,213 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2019-09-10 07:33:04,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:04,870 INFO L93 Difference]: Finished difference Result 218 states and 267 transitions. [2019-09-10 07:33:04,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-10 07:33:04,870 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 57 [2019-09-10 07:33:04,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:04,872 INFO L225 Difference]: With dead ends: 218 [2019-09-10 07:33:04,872 INFO L226 Difference]: Without dead ends: 218 [2019-09-10 07:33:04,873 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2019-09-10 07:33:04,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2019-09-10 07:33:04,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 148. [2019-09-10 07:33:04,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-09-10 07:33:04,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 176 transitions. [2019-09-10 07:33:04,878 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 176 transitions. Word has length 57 [2019-09-10 07:33:04,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:04,878 INFO L475 AbstractCegarLoop]: Abstraction has 148 states and 176 transitions. [2019-09-10 07:33:04,879 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-10 07:33:04,879 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 176 transitions. [2019-09-10 07:33:04,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-09-10 07:33:04,879 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:04,879 INFO L399 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] [2019-09-10 07:33:04,880 INFO L418 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:04,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:04,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1774022695, now seen corresponding path program 1 times [2019-09-10 07:33:04,880 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:04,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:04,881 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:04,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:04,882 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:04,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:05,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:05,084 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:05,084 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 07:33:05,084 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:05,084 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 07:33:05,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 07:33:05,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-10 07:33:05,085 INFO L87 Difference]: Start difference. First operand 148 states and 176 transitions. Second operand 10 states. [2019-09-10 07:33:06,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:06,000 INFO L93 Difference]: Finished difference Result 254 states and 323 transitions. [2019-09-10 07:33:06,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-10 07:33:06,001 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2019-09-10 07:33:06,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:06,003 INFO L225 Difference]: With dead ends: 254 [2019-09-10 07:33:06,003 INFO L226 Difference]: Without dead ends: 254 [2019-09-10 07:33:06,003 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2019-09-10 07:33:06,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-09-10 07:33:06,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 148. [2019-09-10 07:33:06,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-09-10 07:33:06,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 175 transitions. [2019-09-10 07:33:06,013 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 175 transitions. Word has length 58 [2019-09-10 07:33:06,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:06,014 INFO L475 AbstractCegarLoop]: Abstraction has 148 states and 175 transitions. [2019-09-10 07:33:06,014 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 07:33:06,014 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 175 transitions. [2019-09-10 07:33:06,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-10 07:33:06,020 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:06,020 INFO L399 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] [2019-09-10 07:33:06,021 INFO L418 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:06,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:06,021 INFO L82 PathProgramCache]: Analyzing trace with hash 334190176, now seen corresponding path program 1 times [2019-09-10 07:33:06,022 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:06,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:06,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:06,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:06,024 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:06,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:06,512 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:06,513 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-09-10 07:33:06,513 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:06,513 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-10 07:33:06,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-10 07:33:06,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2019-09-10 07:33:06,514 INFO L87 Difference]: Start difference. First operand 148 states and 175 transitions. Second operand 18 states. [2019-09-10 07:33:06,671 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-10 07:33:07,243 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2019-09-10 07:33:08,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:08,575 INFO L93 Difference]: Finished difference Result 436 states and 568 transitions. [2019-09-10 07:33:08,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-09-10 07:33:08,576 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 59 [2019-09-10 07:33:08,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:08,578 INFO L225 Difference]: With dead ends: 436 [2019-09-10 07:33:08,578 INFO L226 Difference]: Without dead ends: 436 [2019-09-10 07:33:08,578 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=192, Invalid=800, Unknown=0, NotChecked=0, Total=992 [2019-09-10 07:33:08,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2019-09-10 07:33:08,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 154. [2019-09-10 07:33:08,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-09-10 07:33:08,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 183 transitions. [2019-09-10 07:33:08,584 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 183 transitions. Word has length 59 [2019-09-10 07:33:08,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:08,584 INFO L475 AbstractCegarLoop]: Abstraction has 154 states and 183 transitions. [2019-09-10 07:33:08,584 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-10 07:33:08,584 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 183 transitions. [2019-09-10 07:33:08,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-10 07:33:08,585 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:08,585 INFO L399 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] [2019-09-10 07:33:08,586 INFO L418 AbstractCegarLoop]: === Iteration 15 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:08,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:08,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1378981208, now seen corresponding path program 1 times [2019-09-10 07:33:08,586 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:08,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:08,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:08,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:08,588 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:08,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:08,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:08,942 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:08,942 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-09-10 07:33:08,942 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:08,942 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-10 07:33:08,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-10 07:33:08,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2019-09-10 07:33:08,943 INFO L87 Difference]: Start difference. First operand 154 states and 183 transitions. Second operand 18 states. [2019-09-10 07:33:09,090 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-10 07:33:09,598 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-09-10 07:33:10,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:10,651 INFO L93 Difference]: Finished difference Result 336 states and 427 transitions. [2019-09-10 07:33:10,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-09-10 07:33:10,651 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 59 [2019-09-10 07:33:10,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:10,653 INFO L225 Difference]: With dead ends: 336 [2019-09-10 07:33:10,653 INFO L226 Difference]: Without dead ends: 336 [2019-09-10 07:33:10,654 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2019-09-10 07:33:10,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2019-09-10 07:33:10,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 154. [2019-09-10 07:33:10,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-09-10 07:33:10,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 182 transitions. [2019-09-10 07:33:10,659 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 182 transitions. Word has length 59 [2019-09-10 07:33:10,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:10,659 INFO L475 AbstractCegarLoop]: Abstraction has 154 states and 182 transitions. [2019-09-10 07:33:10,659 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-10 07:33:10,659 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 182 transitions. [2019-09-10 07:33:10,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-10 07:33:10,660 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:10,660 INFO L399 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] [2019-09-10 07:33:10,660 INFO L418 AbstractCegarLoop]: === Iteration 16 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:10,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:10,661 INFO L82 PathProgramCache]: Analyzing trace with hash 583584810, now seen corresponding path program 1 times [2019-09-10 07:33:10,661 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:10,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:10,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:10,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:10,662 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:11,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:11,035 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:11,035 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-09-10 07:33:11,035 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:11,035 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-10 07:33:11,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-10 07:33:11,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2019-09-10 07:33:11,036 INFO L87 Difference]: Start difference. First operand 154 states and 182 transitions. Second operand 13 states. [2019-09-10 07:33:12,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:12,323 INFO L93 Difference]: Finished difference Result 402 states and 534 transitions. [2019-09-10 07:33:12,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-09-10 07:33:12,324 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 60 [2019-09-10 07:33:12,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:12,327 INFO L225 Difference]: With dead ends: 402 [2019-09-10 07:33:12,327 INFO L226 Difference]: Without dead ends: 402 [2019-09-10 07:33:12,328 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=165, Invalid=537, Unknown=0, NotChecked=0, Total=702 [2019-09-10 07:33:12,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2019-09-10 07:33:12,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 141. [2019-09-10 07:33:12,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2019-09-10 07:33:12,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 169 transitions. [2019-09-10 07:33:12,333 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 169 transitions. Word has length 60 [2019-09-10 07:33:12,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:12,334 INFO L475 AbstractCegarLoop]: Abstraction has 141 states and 169 transitions. [2019-09-10 07:33:12,334 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-10 07:33:12,334 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 169 transitions. [2019-09-10 07:33:12,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-10 07:33:12,334 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:12,335 INFO L399 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] [2019-09-10 07:33:12,335 INFO L418 AbstractCegarLoop]: === Iteration 17 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:12,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:12,335 INFO L82 PathProgramCache]: Analyzing trace with hash 514928378, now seen corresponding path program 1 times [2019-09-10 07:33:12,335 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:12,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:12,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:12,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:12,336 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:13,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:13,021 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:13,021 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-09-10 07:33:13,021 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:13,022 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-10 07:33:13,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-10 07:33:13,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2019-09-10 07:33:13,025 INFO L87 Difference]: Start difference. First operand 141 states and 169 transitions. Second operand 17 states. [2019-09-10 07:33:14,073 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-09-10 07:33:15,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:15,310 INFO L93 Difference]: Finished difference Result 453 states and 604 transitions. [2019-09-10 07:33:15,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-09-10 07:33:15,311 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 60 [2019-09-10 07:33:15,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:15,313 INFO L225 Difference]: With dead ends: 453 [2019-09-10 07:33:15,313 INFO L226 Difference]: Without dead ends: 453 [2019-09-10 07:33:15,314 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=214, Invalid=778, Unknown=0, NotChecked=0, Total=992 [2019-09-10 07:33:15,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2019-09-10 07:33:15,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 141. [2019-09-10 07:33:15,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2019-09-10 07:33:15,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 169 transitions. [2019-09-10 07:33:15,322 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 169 transitions. Word has length 60 [2019-09-10 07:33:15,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:15,322 INFO L475 AbstractCegarLoop]: Abstraction has 141 states and 169 transitions. [2019-09-10 07:33:15,322 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-10 07:33:15,322 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 169 transitions. [2019-09-10 07:33:15,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-10 07:33:15,323 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:15,323 INFO L399 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] [2019-09-10 07:33:15,323 INFO L418 AbstractCegarLoop]: === Iteration 18 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:15,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:15,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1498365057, now seen corresponding path program 1 times [2019-09-10 07:33:15,324 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:15,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:15,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:15,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:15,326 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:15,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:15,702 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:15,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-09-10 07:33:15,702 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:15,702 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-10 07:33:15,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-10 07:33:15,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-09-10 07:33:15,704 INFO L87 Difference]: Start difference. First operand 141 states and 169 transitions. Second operand 12 states. [2019-09-10 07:33:16,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:16,590 INFO L93 Difference]: Finished difference Result 291 states and 381 transitions. [2019-09-10 07:33:16,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-10 07:33:16,591 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 60 [2019-09-10 07:33:16,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:16,593 INFO L225 Difference]: With dead ends: 291 [2019-09-10 07:33:16,593 INFO L226 Difference]: Without dead ends: 291 [2019-09-10 07:33:16,593 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2019-09-10 07:33:16,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2019-09-10 07:33:16,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 124. [2019-09-10 07:33:16,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-09-10 07:33:16,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 149 transitions. [2019-09-10 07:33:16,597 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 149 transitions. Word has length 60 [2019-09-10 07:33:16,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:16,597 INFO L475 AbstractCegarLoop]: Abstraction has 124 states and 149 transitions. [2019-09-10 07:33:16,597 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-10 07:33:16,598 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 149 transitions. [2019-09-10 07:33:16,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-10 07:33:16,598 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:16,598 INFO L399 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] [2019-09-10 07:33:16,599 INFO L418 AbstractCegarLoop]: === Iteration 19 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:16,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:16,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1413076030, now seen corresponding path program 1 times [2019-09-10 07:33:16,599 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:16,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:16,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:16,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:16,601 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:17,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:17,431 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:17,431 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-09-10 07:33:17,431 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:17,432 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-10 07:33:17,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-10 07:33:17,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2019-09-10 07:33:17,432 INFO L87 Difference]: Start difference. First operand 124 states and 149 transitions. Second operand 18 states. [2019-09-10 07:33:18,002 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2019-09-10 07:33:18,159 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-09-10 07:33:18,310 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 07:33:18,458 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 07:33:18,611 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-09-10 07:33:18,775 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-09-10 07:33:20,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:20,009 INFO L93 Difference]: Finished difference Result 342 states and 451 transitions. [2019-09-10 07:33:20,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-09-10 07:33:20,010 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 60 [2019-09-10 07:33:20,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:20,012 INFO L225 Difference]: With dead ends: 342 [2019-09-10 07:33:20,012 INFO L226 Difference]: Without dead ends: 342 [2019-09-10 07:33:20,013 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=260, Invalid=796, Unknown=0, NotChecked=0, Total=1056 [2019-09-10 07:33:20,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2019-09-10 07:33:20,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 124. [2019-09-10 07:33:20,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-09-10 07:33:20,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 148 transitions. [2019-09-10 07:33:20,016 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 148 transitions. Word has length 60 [2019-09-10 07:33:20,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:20,017 INFO L475 AbstractCegarLoop]: Abstraction has 124 states and 148 transitions. [2019-09-10 07:33:20,017 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-10 07:33:20,017 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 148 transitions. [2019-09-10 07:33:20,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-10 07:33:20,018 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:20,018 INFO L399 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] [2019-09-10 07:33:20,018 INFO L418 AbstractCegarLoop]: === Iteration 20 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:20,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:20,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1314143621, now seen corresponding path program 1 times [2019-09-10 07:33:20,019 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:20,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:20,019 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:20,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:20,020 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:20,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:20,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:20,692 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:20,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-10 07:33:20,693 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:20,693 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-10 07:33:20,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-10 07:33:20,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-09-10 07:33:20,695 INFO L87 Difference]: Start difference. First operand 124 states and 148 transitions. Second operand 11 states. [2019-09-10 07:33:21,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:21,611 INFO L93 Difference]: Finished difference Result 440 states and 607 transitions. [2019-09-10 07:33:21,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-10 07:33:21,612 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 61 [2019-09-10 07:33:21,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:21,615 INFO L225 Difference]: With dead ends: 440 [2019-09-10 07:33:21,615 INFO L226 Difference]: Without dead ends: 440 [2019-09-10 07:33:21,616 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=158, Invalid=394, Unknown=0, NotChecked=0, Total=552 [2019-09-10 07:33:21,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2019-09-10 07:33:21,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 106. [2019-09-10 07:33:21,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-09-10 07:33:21,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 130 transitions. [2019-09-10 07:33:21,620 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 130 transitions. Word has length 61 [2019-09-10 07:33:21,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:21,621 INFO L475 AbstractCegarLoop]: Abstraction has 106 states and 130 transitions. [2019-09-10 07:33:21,621 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-10 07:33:21,621 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 130 transitions. [2019-09-10 07:33:21,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-09-10 07:33:21,622 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:21,622 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:21,622 INFO L418 AbstractCegarLoop]: === Iteration 21 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:21,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:21,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1247665849, now seen corresponding path program 1 times [2019-09-10 07:33:21,623 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:21,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:21,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:21,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:21,624 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:21,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:21,677 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:21,677 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:33:21,677 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:21,678 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:33:21,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:33:21,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:33:21,678 INFO L87 Difference]: Start difference. First operand 106 states and 130 transitions. Second operand 3 states. [2019-09-10 07:33:21,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:21,699 INFO L93 Difference]: Finished difference Result 145 states and 184 transitions. [2019-09-10 07:33:21,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:33:21,700 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2019-09-10 07:33:21,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:21,701 INFO L225 Difference]: With dead ends: 145 [2019-09-10 07:33:21,701 INFO L226 Difference]: Without dead ends: 145 [2019-09-10 07:33:21,702 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:33:21,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2019-09-10 07:33:21,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 143. [2019-09-10 07:33:21,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2019-09-10 07:33:21,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 183 transitions. [2019-09-10 07:33:21,705 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 183 transitions. Word has length 77 [2019-09-10 07:33:21,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:21,706 INFO L475 AbstractCegarLoop]: Abstraction has 143 states and 183 transitions. [2019-09-10 07:33:21,706 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:33:21,706 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 183 transitions. [2019-09-10 07:33:21,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-10 07:33:21,707 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:21,707 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:21,707 INFO L418 AbstractCegarLoop]: === Iteration 22 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:21,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:21,707 INFO L82 PathProgramCache]: Analyzing trace with hash -574990682, now seen corresponding path program 1 times [2019-09-10 07:33:21,708 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:21,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:21,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:21,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:21,709 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:21,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:21,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:21,781 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:21,781 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 07:33:21,781 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:21,782 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 07:33:21,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 07:33:21,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:33:21,782 INFO L87 Difference]: Start difference. First operand 143 states and 183 transitions. Second operand 7 states. [2019-09-10 07:33:22,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:22,040 INFO L93 Difference]: Finished difference Result 311 states and 415 transitions. [2019-09-10 07:33:22,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 07:33:22,043 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2019-09-10 07:33:22,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:22,044 INFO L225 Difference]: With dead ends: 311 [2019-09-10 07:33:22,044 INFO L226 Difference]: Without dead ends: 311 [2019-09-10 07:33:22,045 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2019-09-10 07:33:22,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2019-09-10 07:33:22,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 171. [2019-09-10 07:33:22,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2019-09-10 07:33:22,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 222 transitions. [2019-09-10 07:33:22,050 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 222 transitions. Word has length 79 [2019-09-10 07:33:22,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:22,050 INFO L475 AbstractCegarLoop]: Abstraction has 171 states and 222 transitions. [2019-09-10 07:33:22,051 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 07:33:22,051 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 222 transitions. [2019-09-10 07:33:22,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-10 07:33:22,051 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:22,052 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:22,052 INFO L418 AbstractCegarLoop]: === Iteration 23 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:22,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:22,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1123393510, now seen corresponding path program 1 times [2019-09-10 07:33:22,052 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:22,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:22,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:22,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:22,054 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:22,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:22,130 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:22,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 07:33:22,130 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:22,130 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 07:33:22,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 07:33:22,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:33:22,131 INFO L87 Difference]: Start difference. First operand 171 states and 222 transitions. Second operand 7 states. [2019-09-10 07:33:22,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:22,438 INFO L93 Difference]: Finished difference Result 451 states and 605 transitions. [2019-09-10 07:33:22,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 07:33:22,438 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2019-09-10 07:33:22,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:22,441 INFO L225 Difference]: With dead ends: 451 [2019-09-10 07:33:22,441 INFO L226 Difference]: Without dead ends: 451 [2019-09-10 07:33:22,442 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2019-09-10 07:33:22,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2019-09-10 07:33:22,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 297. [2019-09-10 07:33:22,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2019-09-10 07:33:22,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 404 transitions. [2019-09-10 07:33:22,450 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 404 transitions. Word has length 79 [2019-09-10 07:33:22,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:22,450 INFO L475 AbstractCegarLoop]: Abstraction has 297 states and 404 transitions. [2019-09-10 07:33:22,450 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 07:33:22,450 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 404 transitions. [2019-09-10 07:33:22,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-10 07:33:22,451 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:22,451 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:22,452 INFO L418 AbstractCegarLoop]: === Iteration 24 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:22,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:22,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1884477720, now seen corresponding path program 1 times [2019-09-10 07:33:22,452 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:22,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:22,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:22,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:22,453 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:22,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:22,502 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:22,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:33:22,502 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:22,503 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:33:22,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:33:22,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:33:22,503 INFO L87 Difference]: Start difference. First operand 297 states and 404 transitions. Second operand 3 states. [2019-09-10 07:33:22,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:22,524 INFO L93 Difference]: Finished difference Result 495 states and 673 transitions. [2019-09-10 07:33:22,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:33:22,525 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2019-09-10 07:33:22,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:22,527 INFO L225 Difference]: With dead ends: 495 [2019-09-10 07:33:22,527 INFO L226 Difference]: Without dead ends: 495 [2019-09-10 07:33:22,528 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:33:22,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2019-09-10 07:33:22,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 493. [2019-09-10 07:33:22,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2019-09-10 07:33:22,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 672 transitions. [2019-09-10 07:33:22,536 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 672 transitions. Word has length 79 [2019-09-10 07:33:22,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:22,536 INFO L475 AbstractCegarLoop]: Abstraction has 493 states and 672 transitions. [2019-09-10 07:33:22,537 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:33:22,537 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 672 transitions. [2019-09-10 07:33:22,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-10 07:33:22,538 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:22,538 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:22,538 INFO L418 AbstractCegarLoop]: === Iteration 25 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:22,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:22,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1144737399, now seen corresponding path program 1 times [2019-09-10 07:33:22,539 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:22,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:22,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:22,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:22,540 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:22,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:22,580 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:22,580 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:33:22,581 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:22,581 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:33:22,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:33:22,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:33:22,581 INFO L87 Difference]: Start difference. First operand 493 states and 672 transitions. Second operand 3 states. [2019-09-10 07:33:22,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:22,608 INFO L93 Difference]: Finished difference Result 717 states and 975 transitions. [2019-09-10 07:33:22,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:33:22,608 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2019-09-10 07:33:22,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:22,611 INFO L225 Difference]: With dead ends: 717 [2019-09-10 07:33:22,612 INFO L226 Difference]: Without dead ends: 717 [2019-09-10 07:33:22,612 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:33:22,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2019-09-10 07:33:22,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 715. [2019-09-10 07:33:22,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 715 states. [2019-09-10 07:33:22,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 974 transitions. [2019-09-10 07:33:22,624 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 974 transitions. Word has length 79 [2019-09-10 07:33:22,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:22,624 INFO L475 AbstractCegarLoop]: Abstraction has 715 states and 974 transitions. [2019-09-10 07:33:22,624 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:33:22,624 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 974 transitions. [2019-09-10 07:33:22,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-10 07:33:22,625 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:22,625 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:22,626 INFO L418 AbstractCegarLoop]: === Iteration 26 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:22,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:22,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1854658784, now seen corresponding path program 1 times [2019-09-10 07:33:22,626 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:22,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:22,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:22,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:22,628 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:22,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:22,704 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:22,704 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 07:33:22,704 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:22,705 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 07:33:22,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 07:33:22,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:33:22,705 INFO L87 Difference]: Start difference. First operand 715 states and 974 transitions. Second operand 7 states. [2019-09-10 07:33:23,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:23,037 INFO L93 Difference]: Finished difference Result 1921 states and 2619 transitions. [2019-09-10 07:33:23,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 07:33:23,037 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2019-09-10 07:33:23,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:23,045 INFO L225 Difference]: With dead ends: 1921 [2019-09-10 07:33:23,045 INFO L226 Difference]: Without dead ends: 1921 [2019-09-10 07:33:23,045 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2019-09-10 07:33:23,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2019-09-10 07:33:23,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1227. [2019-09-10 07:33:23,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1227 states. [2019-09-10 07:33:23,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1688 transitions. [2019-09-10 07:33:23,072 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1688 transitions. Word has length 79 [2019-09-10 07:33:23,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:23,073 INFO L475 AbstractCegarLoop]: Abstraction has 1227 states and 1688 transitions. [2019-09-10 07:33:23,073 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 07:33:23,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1688 transitions. [2019-09-10 07:33:23,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-09-10 07:33:23,074 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:23,074 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:23,074 INFO L418 AbstractCegarLoop]: === Iteration 27 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:23,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:23,075 INFO L82 PathProgramCache]: Analyzing trace with hash 2127178523, now seen corresponding path program 1 times [2019-09-10 07:33:23,075 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:23,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:23,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:23,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:23,076 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:23,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:23,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:23,117 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:23,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:33:23,118 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:23,118 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:33:23,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:33:23,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:33:23,119 INFO L87 Difference]: Start difference. First operand 1227 states and 1688 transitions. Second operand 3 states. [2019-09-10 07:33:23,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:23,135 INFO L93 Difference]: Finished difference Result 1157 states and 1561 transitions. [2019-09-10 07:33:23,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:33:23,136 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2019-09-10 07:33:23,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:23,140 INFO L225 Difference]: With dead ends: 1157 [2019-09-10 07:33:23,141 INFO L226 Difference]: Without dead ends: 1157 [2019-09-10 07:33:23,141 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:33:23,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2019-09-10 07:33:23,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1055. [2019-09-10 07:33:23,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1055 states. [2019-09-10 07:33:23,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1438 transitions. [2019-09-10 07:33:23,158 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1438 transitions. Word has length 80 [2019-09-10 07:33:23,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:23,158 INFO L475 AbstractCegarLoop]: Abstraction has 1055 states and 1438 transitions. [2019-09-10 07:33:23,158 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:33:23,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1438 transitions. [2019-09-10 07:33:23,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-09-10 07:33:23,159 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:23,159 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:23,160 INFO L418 AbstractCegarLoop]: === Iteration 28 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:23,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:23,160 INFO L82 PathProgramCache]: Analyzing trace with hash -30044759, now seen corresponding path program 1 times [2019-09-10 07:33:23,160 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:23,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:23,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:23,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:23,162 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:23,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:23,203 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:23,204 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:33:23,204 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:23,204 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:33:23,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:33:23,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:33:23,205 INFO L87 Difference]: Start difference. First operand 1055 states and 1438 transitions. Second operand 3 states. [2019-09-10 07:33:23,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:23,237 INFO L93 Difference]: Finished difference Result 1155 states and 1565 transitions. [2019-09-10 07:33:23,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:33:23,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 81 [2019-09-10 07:33:23,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:23,245 INFO L225 Difference]: With dead ends: 1155 [2019-09-10 07:33:23,245 INFO L226 Difference]: Without dead ends: 1155 [2019-09-10 07:33:23,245 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:33:23,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2019-09-10 07:33:23,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1153. [2019-09-10 07:33:23,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1153 states. [2019-09-10 07:33:23,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1564 transitions. [2019-09-10 07:33:23,266 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1564 transitions. Word has length 81 [2019-09-10 07:33:23,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:23,266 INFO L475 AbstractCegarLoop]: Abstraction has 1153 states and 1564 transitions. [2019-09-10 07:33:23,267 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:33:23,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1564 transitions. [2019-09-10 07:33:23,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-09-10 07:33:23,267 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:23,268 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:23,268 INFO L418 AbstractCegarLoop]: === Iteration 29 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:23,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:23,268 INFO L82 PathProgramCache]: Analyzing trace with hash 951455397, now seen corresponding path program 1 times [2019-09-10 07:33:23,268 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:23,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:23,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:23,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:23,270 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:23,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:23,356 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:23,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 07:33:23,356 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:23,356 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 07:33:23,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 07:33:23,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 07:33:23,357 INFO L87 Difference]: Start difference. First operand 1153 states and 1564 transitions. Second operand 6 states. [2019-09-10 07:33:23,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:23,427 INFO L93 Difference]: Finished difference Result 1686 states and 2262 transitions. [2019-09-10 07:33:23,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-10 07:33:23,428 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 81 [2019-09-10 07:33:23,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:23,435 INFO L225 Difference]: With dead ends: 1686 [2019-09-10 07:33:23,435 INFO L226 Difference]: Without dead ends: 1686 [2019-09-10 07:33:23,437 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-09-10 07:33:23,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2019-09-10 07:33:23,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 1171. [2019-09-10 07:33:23,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1171 states. [2019-09-10 07:33:23,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1576 transitions. [2019-09-10 07:33:23,459 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1576 transitions. Word has length 81 [2019-09-10 07:33:23,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:23,460 INFO L475 AbstractCegarLoop]: Abstraction has 1171 states and 1576 transitions. [2019-09-10 07:33:23,460 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 07:33:23,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1576 transitions. [2019-09-10 07:33:23,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-10 07:33:23,461 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:23,462 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:23,462 INFO L418 AbstractCegarLoop]: === Iteration 30 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:23,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:23,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1615042876, now seen corresponding path program 1 times [2019-09-10 07:33:23,462 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:23,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:23,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:23,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:23,464 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:23,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:23,534 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-10 07:33:23,535 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:23,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:33:23,535 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:23,535 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:33:23,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:33:23,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:33:23,536 INFO L87 Difference]: Start difference. First operand 1171 states and 1576 transitions. Second operand 5 states. [2019-09-10 07:33:23,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:23,611 INFO L93 Difference]: Finished difference Result 3418 states and 4597 transitions. [2019-09-10 07:33:23,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:33:23,611 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2019-09-10 07:33:23,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:23,621 INFO L225 Difference]: With dead ends: 3418 [2019-09-10 07:33:23,621 INFO L226 Difference]: Without dead ends: 3418 [2019-09-10 07:33:23,621 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:33:23,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3418 states. [2019-09-10 07:33:23,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3418 to 1891. [2019-09-10 07:33:23,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1891 states. [2019-09-10 07:33:23,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1891 states to 1891 states and 2538 transitions. [2019-09-10 07:33:23,657 INFO L78 Accepts]: Start accepts. Automaton has 1891 states and 2538 transitions. Word has length 102 [2019-09-10 07:33:23,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:23,657 INFO L475 AbstractCegarLoop]: Abstraction has 1891 states and 2538 transitions. [2019-09-10 07:33:23,657 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:33:23,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1891 states and 2538 transitions. [2019-09-10 07:33:23,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-10 07:33:23,659 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:23,659 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:23,659 INFO L418 AbstractCegarLoop]: === Iteration 31 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:23,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:23,660 INFO L82 PathProgramCache]: Analyzing trace with hash 965337079, now seen corresponding path program 1 times [2019-09-10 07:33:23,660 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:23,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:23,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:23,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:23,661 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:23,711 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-10 07:33:23,712 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:23,712 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:33:23,712 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:23,712 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:33:23,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:33:23,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:33:23,713 INFO L87 Difference]: Start difference. First operand 1891 states and 2538 transitions. Second operand 3 states. [2019-09-10 07:33:23,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:23,737 INFO L93 Difference]: Finished difference Result 1722 states and 2254 transitions. [2019-09-10 07:33:23,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:33:23,737 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2019-09-10 07:33:23,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:23,744 INFO L225 Difference]: With dead ends: 1722 [2019-09-10 07:33:23,744 INFO L226 Difference]: Without dead ends: 1722 [2019-09-10 07:33:23,745 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:33:23,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2019-09-10 07:33:23,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1666. [2019-09-10 07:33:23,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1666 states. [2019-09-10 07:33:23,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2190 transitions. [2019-09-10 07:33:23,770 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 2190 transitions. Word has length 103 [2019-09-10 07:33:23,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:23,771 INFO L475 AbstractCegarLoop]: Abstraction has 1666 states and 2190 transitions. [2019-09-10 07:33:23,771 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:33:23,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 2190 transitions. [2019-09-10 07:33:23,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-10 07:33:23,773 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:23,773 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:23,773 INFO L418 AbstractCegarLoop]: === Iteration 32 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:23,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:23,774 INFO L82 PathProgramCache]: Analyzing trace with hash 856377447, now seen corresponding path program 1 times [2019-09-10 07:33:23,774 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:23,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:23,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:23,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:23,775 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:23,860 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-10 07:33:23,860 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:23,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:33:23,861 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:23,861 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:33:23,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:33:23,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:33:23,862 INFO L87 Difference]: Start difference. First operand 1666 states and 2190 transitions. Second operand 5 states. [2019-09-10 07:33:23,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:23,922 INFO L93 Difference]: Finished difference Result 3600 states and 4730 transitions. [2019-09-10 07:33:23,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:33:23,922 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 103 [2019-09-10 07:33:23,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:23,936 INFO L225 Difference]: With dead ends: 3600 [2019-09-10 07:33:23,937 INFO L226 Difference]: Without dead ends: 3600 [2019-09-10 07:33:23,937 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:33:23,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3600 states. [2019-09-10 07:33:23,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3600 to 2605. [2019-09-10 07:33:23,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2605 states. [2019-09-10 07:33:23,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 3411 transitions. [2019-09-10 07:33:23,988 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 3411 transitions. Word has length 103 [2019-09-10 07:33:23,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:23,988 INFO L475 AbstractCegarLoop]: Abstraction has 2605 states and 3411 transitions. [2019-09-10 07:33:23,988 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:33:23,988 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 3411 transitions. [2019-09-10 07:33:23,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-10 07:33:23,990 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:23,990 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:23,990 INFO L418 AbstractCegarLoop]: === Iteration 33 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:23,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:23,991 INFO L82 PathProgramCache]: Analyzing trace with hash -924431250, now seen corresponding path program 1 times [2019-09-10 07:33:23,991 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:23,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:23,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:23,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:23,992 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:24,047 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:24,049 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:24,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:33:24,049 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:24,051 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:33:24,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:33:24,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:33:24,051 INFO L87 Difference]: Start difference. First operand 2605 states and 3411 transitions. Second operand 3 states. [2019-09-10 07:33:24,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:24,074 INFO L93 Difference]: Finished difference Result 3968 states and 5102 transitions. [2019-09-10 07:33:24,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:33:24,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2019-09-10 07:33:24,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:24,094 INFO L225 Difference]: With dead ends: 3968 [2019-09-10 07:33:24,094 INFO L226 Difference]: Without dead ends: 3968 [2019-09-10 07:33:24,095 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:33:24,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3968 states. [2019-09-10 07:33:24,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3968 to 3616. [2019-09-10 07:33:24,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3616 states. [2019-09-10 07:33:24,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 4676 transitions. [2019-09-10 07:33:24,154 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 4676 transitions. Word has length 104 [2019-09-10 07:33:24,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:24,154 INFO L475 AbstractCegarLoop]: Abstraction has 3616 states and 4676 transitions. [2019-09-10 07:33:24,154 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:33:24,154 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 4676 transitions. [2019-09-10 07:33:24,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-10 07:33:24,156 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:24,156 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:24,156 INFO L418 AbstractCegarLoop]: === Iteration 34 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:24,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:24,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1380496519, now seen corresponding path program 1 times [2019-09-10 07:33:24,157 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:24,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:24,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:24,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:24,158 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:24,283 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 07:33:24,283 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:24,283 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:33:24,284 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:24,284 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:33:24,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:33:24,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:33:24,287 INFO L87 Difference]: Start difference. First operand 3616 states and 4676 transitions. Second operand 5 states. [2019-09-10 07:33:24,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:24,349 INFO L93 Difference]: Finished difference Result 4557 states and 5891 transitions. [2019-09-10 07:33:24,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:33:24,350 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2019-09-10 07:33:24,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:24,369 INFO L225 Difference]: With dead ends: 4557 [2019-09-10 07:33:24,370 INFO L226 Difference]: Without dead ends: 4557 [2019-09-10 07:33:24,371 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-09-10 07:33:24,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4557 states. [2019-09-10 07:33:24,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4557 to 4067. [2019-09-10 07:33:24,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4067 states. [2019-09-10 07:33:24,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4067 states to 4067 states and 5268 transitions. [2019-09-10 07:33:24,424 INFO L78 Accepts]: Start accepts. Automaton has 4067 states and 5268 transitions. Word has length 104 [2019-09-10 07:33:24,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:24,425 INFO L475 AbstractCegarLoop]: Abstraction has 4067 states and 5268 transitions. [2019-09-10 07:33:24,425 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:33:24,425 INFO L276 IsEmpty]: Start isEmpty. Operand 4067 states and 5268 transitions. [2019-09-10 07:33:24,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-09-10 07:33:24,426 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:24,427 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:24,427 INFO L418 AbstractCegarLoop]: === Iteration 35 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:24,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:24,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1368665944, now seen corresponding path program 1 times [2019-09-10 07:33:24,427 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:24,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:24,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:24,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:24,429 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:24,550 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 07:33:24,550 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:33:24,550 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:33:24,551 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 106 with the following transitions: [2019-09-10 07:33:24,553 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [58], [61], [64], [68], [71], [74], [78], [81], [84], [87], [91], [94], [97], [101], [103], [106], [109], [112], [115], [117], [119], [122], [125], [128], [130], [132], [135], [145], [148], [152], [155], [158], [162], [164], [167], [170], [178], [180], [183], [191], [193], [196], [204], [206], [209], [212], [216], [218], [220], [223], [224], [226], [228], [230], [235], [237], [240], [253], [255], [258], [261], [263], [278], [280], [283], [286], [288], [303], [305], [308], [311], [313], [349], [754], [755], [759], [760], [761] [2019-09-10 07:33:24,598 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:33:24,598 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:33:24,733 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:33:25,338 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:33:25,342 INFO L272 AbstractInterpreter]: Visited 97 different actions 474 times. Merged at 39 different actions 325 times. Widened at 18 different actions 57 times. Performed 1787 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1787 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 56 fixpoints after 15 different actions. Largest state had 147 variables. [2019-09-10 07:33:25,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:25,347 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:33:25,348 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:33:25,348 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:33:25,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:25,370 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:33:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:25,515 INFO L256 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 13 conjunts are in the unsatisfiable core [2019-09-10 07:33:25,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:33:25,609 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:25,638 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:25,685 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:25,868 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:25,868 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:33:25,911 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:26,044 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:26,045 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:26,046 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:26,047 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:26,789 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:26,918 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:26,922 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:33:26,923 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 23 [2019-09-10 07:33:26,923 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:33:26,924 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-10 07:33:26,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-10 07:33:26,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=427, Unknown=0, NotChecked=0, Total=506 [2019-09-10 07:33:26,925 INFO L87 Difference]: Start difference. First operand 4067 states and 5268 transitions. Second operand 14 states. [2019-09-10 07:33:31,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:31,252 INFO L93 Difference]: Finished difference Result 31051 states and 40077 transitions. [2019-09-10 07:33:31,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2019-09-10 07:33:31,253 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 105 [2019-09-10 07:33:31,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:31,302 INFO L225 Difference]: With dead ends: 31051 [2019-09-10 07:33:31,302 INFO L226 Difference]: Without dead ends: 31051 [2019-09-10 07:33:31,304 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 170 SyntacticMatches, 25 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2127 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1229, Invalid=4777, Unknown=0, NotChecked=0, Total=6006 [2019-09-10 07:33:31,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31051 states. [2019-09-10 07:33:31,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31051 to 12260. [2019-09-10 07:33:31,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12260 states. [2019-09-10 07:33:31,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12260 states to 12260 states and 15906 transitions. [2019-09-10 07:33:31,608 INFO L78 Accepts]: Start accepts. Automaton has 12260 states and 15906 transitions. Word has length 105 [2019-09-10 07:33:31,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:31,608 INFO L475 AbstractCegarLoop]: Abstraction has 12260 states and 15906 transitions. [2019-09-10 07:33:31,608 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-10 07:33:31,608 INFO L276 IsEmpty]: Start isEmpty. Operand 12260 states and 15906 transitions. [2019-09-10 07:33:31,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-09-10 07:33:31,611 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:31,611 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:31,612 INFO L418 AbstractCegarLoop]: === Iteration 36 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:31,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:31,612 INFO L82 PathProgramCache]: Analyzing trace with hash 75351500, now seen corresponding path program 1 times [2019-09-10 07:33:31,612 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:31,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:31,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:31,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:31,619 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:31,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:31,748 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-09-10 07:33:31,749 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:31,749 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 07:33:31,749 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:31,749 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 07:33:31,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 07:33:31,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-10 07:33:31,750 INFO L87 Difference]: Start difference. First operand 12260 states and 15906 transitions. Second operand 9 states. [2019-09-10 07:33:32,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:32,181 INFO L93 Difference]: Finished difference Result 25000 states and 32285 transitions. [2019-09-10 07:33:32,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-10 07:33:32,182 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 106 [2019-09-10 07:33:32,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:32,223 INFO L225 Difference]: With dead ends: 25000 [2019-09-10 07:33:32,223 INFO L226 Difference]: Without dead ends: 25000 [2019-09-10 07:33:32,223 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2019-09-10 07:33:32,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25000 states. [2019-09-10 07:33:32,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25000 to 12260. [2019-09-10 07:33:32,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12260 states. [2019-09-10 07:33:32,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12260 states to 12260 states and 15904 transitions. [2019-09-10 07:33:32,566 INFO L78 Accepts]: Start accepts. Automaton has 12260 states and 15904 transitions. Word has length 106 [2019-09-10 07:33:32,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:32,566 INFO L475 AbstractCegarLoop]: Abstraction has 12260 states and 15904 transitions. [2019-09-10 07:33:32,567 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 07:33:32,567 INFO L276 IsEmpty]: Start isEmpty. Operand 12260 states and 15904 transitions. [2019-09-10 07:33:32,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 07:33:32,569 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:32,569 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:32,570 INFO L418 AbstractCegarLoop]: === Iteration 37 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:32,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:32,570 INFO L82 PathProgramCache]: Analyzing trace with hash 94830107, now seen corresponding path program 1 times [2019-09-10 07:33:32,570 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:32,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:32,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:32,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:32,572 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:32,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:32,836 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:32,836 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:33:32,836 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:33:32,838 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2019-09-10 07:33:32,838 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [58], [61], [64], [68], [71], [74], [78], [81], [84], [87], [91], [94], [97], [101], [103], [106], [109], [112], [115], [117], [119], [122], [125], [128], [130], [132], [135], [138], [141], [143], [145], [148], [152], [155], [158], [162], [164], [167], [170], [173], [178], [180], [183], [191], [193], [196], [199], [204], [206], [209], [216], [218], [220], [223], [224], [226], [228], [237], [240], [244], [246], [249], [255], [258], [261], [263], [278], [280], [283], [286], [288], [296], [299], [305], [308], [311], [313], [754], [755], [759], [760], [761] [2019-09-10 07:33:32,860 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:33:32,861 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:33:32,906 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:33:33,396 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:33:33,396 INFO L272 AbstractInterpreter]: Visited 101 different actions 471 times. Merged at 41 different actions 328 times. Widened at 13 different actions 45 times. Performed 1818 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1818 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 34 fixpoints after 11 different actions. Largest state had 147 variables. [2019-09-10 07:33:33,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:33,397 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:33:33,397 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:33:33,397 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:33:33,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:33,429 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:33:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:33,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 20 conjunts are in the unsatisfiable core [2019-09-10 07:33:33,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:33:33,843 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:33,955 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,133 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:34,134 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:33:34,278 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,278 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,279 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,279 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,279 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,280 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,280 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,281 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,281 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,282 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,283 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,283 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,284 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,285 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,285 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,285 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,286 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,286 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,287 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,288 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,288 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,289 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,291 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,291 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,292 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,292 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,293 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,293 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,293 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,294 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,295 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,295 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,296 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:34,296 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:36,143 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:36,300 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:36,313 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:33:36,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2019-09-10 07:33:36,313 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:33:36,314 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-10 07:33:36,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-10 07:33:36,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2019-09-10 07:33:36,314 INFO L87 Difference]: Start difference. First operand 12260 states and 15904 transitions. Second operand 18 states. [2019-09-10 07:33:36,784 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2019-09-10 07:33:37,013 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2019-09-10 07:33:37,400 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 38 [2019-09-10 07:33:37,615 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 36 [2019-09-10 07:33:37,953 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2019-09-10 07:33:38,391 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2019-09-10 07:33:38,700 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 38 [2019-09-10 07:33:38,960 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-10 07:33:39,199 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2019-09-10 07:33:39,501 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-09-10 07:33:39,661 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-10 07:33:40,089 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-10 07:33:40,391 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-10 07:33:40,604 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-09-10 07:33:40,856 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 38 [2019-09-10 07:33:41,104 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-09-10 07:33:41,287 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2019-09-10 07:33:41,600 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-10 07:33:41,956 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 36 [2019-09-10 07:33:42,517 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2019-09-10 07:33:42,758 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-10 07:33:43,155 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 38 [2019-09-10 07:33:43,296 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 33 [2019-09-10 07:33:43,644 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-10 07:33:43,993 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2019-09-10 07:33:44,255 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-10 07:33:44,581 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-09-10 07:33:44,830 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2019-09-10 07:33:45,064 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2019-09-10 07:33:45,315 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-10 07:33:45,761 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 36 [2019-09-10 07:33:46,032 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2019-09-10 07:33:46,257 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 39 [2019-09-10 07:33:46,553 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-10 07:33:46,735 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-10 07:33:47,017 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-10 07:33:47,500 WARN L188 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2019-09-10 07:33:47,803 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-10 07:33:48,043 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-09-10 07:33:48,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:48,141 INFO L93 Difference]: Finished difference Result 63920 states and 81486 transitions. [2019-09-10 07:33:48,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2019-09-10 07:33:48,142 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 108 [2019-09-10 07:33:48,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:48,254 INFO L225 Difference]: With dead ends: 63920 [2019-09-10 07:33:48,254 INFO L226 Difference]: Without dead ends: 63920 [2019-09-10 07:33:48,257 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 179 SyntacticMatches, 26 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1512 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=1143, Invalid=3827, Unknown=0, NotChecked=0, Total=4970 [2019-09-10 07:33:48,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63920 states. [2019-09-10 07:33:49,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63920 to 28753. [2019-09-10 07:33:49,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28753 states. [2019-09-10 07:33:49,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28753 states to 28753 states and 37197 transitions. [2019-09-10 07:33:49,573 INFO L78 Accepts]: Start accepts. Automaton has 28753 states and 37197 transitions. Word has length 108 [2019-09-10 07:33:49,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:49,575 INFO L475 AbstractCegarLoop]: Abstraction has 28753 states and 37197 transitions. [2019-09-10 07:33:49,575 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-10 07:33:49,575 INFO L276 IsEmpty]: Start isEmpty. Operand 28753 states and 37197 transitions. [2019-09-10 07:33:49,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 07:33:49,581 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:49,581 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:49,582 INFO L418 AbstractCegarLoop]: === Iteration 38 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:49,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:49,582 INFO L82 PathProgramCache]: Analyzing trace with hash -636435167, now seen corresponding path program 1 times [2019-09-10 07:33:49,583 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:49,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:49,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:49,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:49,584 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:49,842 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:49,843 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:33:49,843 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:33:49,843 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2019-09-10 07:33:49,844 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [58], [61], [64], [68], [71], [74], [78], [81], [84], [87], [91], [94], [97], [101], [103], [106], [109], [112], [115], [117], [119], [122], [125], [128], [130], [132], [135], [138], [141], [143], [145], [148], [152], [155], [158], [162], [164], [167], [170], [173], [178], [180], [183], [186], [191], [193], [196], [204], [206], [209], [216], [218], [220], [223], [224], [226], [228], [237], [240], [244], [253], [255], [258], [261], [263], [271], [274], [280], [283], [286], [288], [296], [299], [305], [308], [311], [313], [754], [755], [759], [760], [761] [2019-09-10 07:33:49,851 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:33:49,851 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:33:49,871 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:33:50,169 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:33:50,170 INFO L272 AbstractInterpreter]: Visited 101 different actions 455 times. Merged at 41 different actions 314 times. Widened at 13 different actions 38 times. Performed 1759 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1759 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 35 fixpoints after 11 different actions. Largest state had 147 variables. [2019-09-10 07:33:50,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:50,171 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:33:50,171 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:33:50,171 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:33:50,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:50,185 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:33:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:50,315 INFO L256 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 19 conjunts are in the unsatisfiable core [2019-09-10 07:33:50,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:33:50,529 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:50,863 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:50,863 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:33:50,988 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:51,641 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:51,703 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:51,704 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:51,705 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:52,684 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:33:52,820 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:52,824 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:33:52,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2019-09-10 07:33:52,824 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:33:52,825 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-10 07:33:52,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-10 07:33:52,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=552, Unknown=0, NotChecked=0, Total=650 [2019-09-10 07:33:52,826 INFO L87 Difference]: Start difference. First operand 28753 states and 37197 transitions. Second operand 20 states. [2019-09-10 07:33:55,550 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2019-09-10 07:33:56,638 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2019-09-10 07:33:59,191 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2019-09-10 07:34:00,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:00,807 INFO L93 Difference]: Finished difference Result 150044 states and 190139 transitions. [2019-09-10 07:34:00,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2019-09-10 07:34:00,808 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 108 [2019-09-10 07:34:00,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:00,978 INFO L225 Difference]: With dead ends: 150044 [2019-09-10 07:34:00,978 INFO L226 Difference]: Without dead ends: 150044 [2019-09-10 07:34:00,980 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 175 SyntacticMatches, 28 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1130 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1180, Invalid=2980, Unknown=0, NotChecked=0, Total=4160 [2019-09-10 07:34:01,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150044 states. [2019-09-10 07:34:03,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150044 to 70971. [2019-09-10 07:34:03,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70971 states. [2019-09-10 07:34:03,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70971 states to 70971 states and 91807 transitions. [2019-09-10 07:34:03,155 INFO L78 Accepts]: Start accepts. Automaton has 70971 states and 91807 transitions. Word has length 108 [2019-09-10 07:34:03,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:03,155 INFO L475 AbstractCegarLoop]: Abstraction has 70971 states and 91807 transitions. [2019-09-10 07:34:03,155 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-10 07:34:03,156 INFO L276 IsEmpty]: Start isEmpty. Operand 70971 states and 91807 transitions. [2019-09-10 07:34:03,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 07:34:03,164 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:03,164 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:03,164 INFO L418 AbstractCegarLoop]: === Iteration 39 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:03,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:03,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1305569259, now seen corresponding path program 1 times [2019-09-10 07:34:03,165 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:03,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:03,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:03,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:03,166 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:03,514 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:03,515 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:34:03,515 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:34:03,516 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2019-09-10 07:34:03,517 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [58], [61], [64], [68], [71], [74], [78], [81], [84], [87], [91], [94], [97], [101], [103], [106], [109], [112], [115], [117], [119], [122], [125], [128], [130], [132], [135], [138], [141], [143], [145], [148], [152], [155], [158], [162], [164], [167], [170], [178], [180], [183], [186], [191], [193], [196], [199], [204], [206], [209], [216], [218], [220], [223], [224], [226], [228], [237], [240], [244], [246], [249], [255], [258], [261], [263], [271], [274], [280], [283], [286], [288], [303], [305], [308], [311], [313], [754], [755], [759], [760], [761] [2019-09-10 07:34:03,522 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:34:03,522 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:34:03,548 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:34:03,771 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:34:03,771 INFO L272 AbstractInterpreter]: Visited 101 different actions 430 times. Merged at 41 different actions 291 times. Widened at 12 different actions 30 times. Performed 1555 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1555 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 29 fixpoints after 12 different actions. Largest state had 147 variables. [2019-09-10 07:34:03,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:03,772 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:34:03,772 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:34:03,772 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:34:03,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:03,794 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:34:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:03,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-10 07:34:03,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:34:04,442 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:04,557 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:04,758 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:04,759 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:34:05,079 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:05,080 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:05,080 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:05,080 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:05,081 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:05,081 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:05,082 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:05,082 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:05,082 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:05,083 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:05,083 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:05,084 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:05,084 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:05,085 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:05,085 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:05,086 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:05,087 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:05,088 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:05,088 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:05,089 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:05,090 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:05,961 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:06,075 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:06,079 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:34:06,079 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 12] total 36 [2019-09-10 07:34:06,079 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:34:06,079 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-09-10 07:34:06,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-09-10 07:34:06,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1153, Unknown=0, NotChecked=0, Total=1260 [2019-09-10 07:34:06,080 INFO L87 Difference]: Start difference. First operand 70971 states and 91807 transitions. Second operand 26 states. [2019-09-10 07:34:06,236 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-10 07:34:06,725 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-10 07:34:07,019 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-10 07:34:07,398 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-10 07:34:07,749 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 07:34:07,995 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-10 07:34:08,247 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-10 07:34:08,646 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-10 07:34:08,838 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2019-09-10 07:34:09,163 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:34:09,667 WARN L188 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:34:10,072 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:34:10,406 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:34:10,784 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:34:11,260 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:34:11,537 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:34:12,067 WARN L188 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:34:12,348 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:34:12,906 WARN L188 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:34:13,146 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:34:13,457 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:34:13,810 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2019-09-10 07:34:14,424 WARN L188 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2019-09-10 07:34:14,725 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2019-09-10 07:34:15,137 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2019-09-10 07:34:15,680 WARN L188 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2019-09-10 07:34:15,916 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:34:16,153 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:34:16,381 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:34:16,641 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:34:16,858 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:34:17,085 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:34:17,386 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:34:17,616 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:34:17,951 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:34:18,213 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:34:18,624 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:34:18,964 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:34:19,164 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:34:19,912 WARN L188 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2019-09-10 07:34:20,296 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2019-09-10 07:34:20,682 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:34:20,966 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:34:21,305 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:34:21,653 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:34:21,942 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:34:22,224 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:34:22,528 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:34:22,885 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2019-09-10 07:34:23,284 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2019-09-10 07:34:23,573 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 07:34:23,854 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:34:24,141 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:34:24,543 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:34:25,022 WARN L188 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:34:25,226 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:34:25,654 WARN L188 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:34:25,945 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:34:26,422 WARN L188 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:34:26,733 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-10 07:34:27,301 WARN L188 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:34:27,559 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:34:27,864 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:34:28,309 WARN L188 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 07:34:28,686 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:34:29,005 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:34:29,481 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2019-09-10 07:34:29,856 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2019-09-10 07:34:30,192 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 89 [2019-09-10 07:34:30,707 WARN L188 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2019-09-10 07:34:31,017 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2019-09-10 07:34:31,299 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:34:31,815 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2019-09-10 07:34:32,233 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-10 07:34:32,460 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:34:32,869 WARN L188 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:34:33,248 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2019-09-10 07:34:33,627 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2019-09-10 07:34:33,932 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2019-09-10 07:34:34,160 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:34:34,425 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:34:34,704 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:34:35,325 WARN L188 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:34:35,735 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2019-09-10 07:34:36,104 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2019-09-10 07:34:36,442 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:34:36,795 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:34:37,095 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2019-09-10 07:34:37,382 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:34:37,673 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2019-09-10 07:34:37,916 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 07:34:38,294 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:34:38,551 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 07:34:38,841 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:34:39,143 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:34:39,404 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2019-09-10 07:34:39,668 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2019-09-10 07:34:39,976 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:34:40,430 WARN L188 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 85 [2019-09-10 07:34:40,832 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 93 [2019-09-10 07:34:41,339 WARN L188 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2019-09-10 07:34:41,606 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-10 07:34:41,992 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2019-09-10 07:34:42,385 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:34:42,702 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:34:42,961 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:34:43,243 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:34:43,526 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:34:43,977 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:34:44,524 WARN L188 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 07:34:44,790 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:34:45,118 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:34:45,547 WARN L188 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2019-09-10 07:34:45,802 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:34:46,107 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:34:46,718 WARN L188 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2019-09-10 07:34:47,106 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:34:47,414 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:34:47,900 WARN L188 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2019-09-10 07:34:48,184 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:34:48,585 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-10 07:34:48,847 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:34:49,114 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:34:49,442 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:34:49,721 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:34:49,975 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:34:50,291 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:34:50,589 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:34:50,878 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 07:34:51,095 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:34:51,450 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-09-10 07:34:51,768 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:34:52,181 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:34:52,424 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:34:52,704 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2019-09-10 07:34:52,993 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-10 07:34:53,310 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:34:53,550 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:34:54,128 WARN L188 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:34:54,574 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-10 07:34:54,997 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 91 [2019-09-10 07:34:55,306 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2019-09-10 07:34:55,717 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2019-09-10 07:34:55,986 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:34:56,246 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:34:56,601 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-10 07:34:56,968 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:34:57,166 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:34:57,730 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 07:34:57,993 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:34:58,340 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:34:59,036 WARN L188 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:34:59,469 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:34:59,806 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:35:00,154 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:35:00,410 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:35:01,107 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2019-09-10 07:35:01,442 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2019-09-10 07:35:01,798 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:35:02,084 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2019-09-10 07:35:02,639 WARN L188 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 07:35:03,036 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:35:03,477 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-10 07:35:04,352 WARN L188 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2019-09-10 07:35:04,627 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:35:05,021 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:35:05,341 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2019-09-10 07:35:05,799 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-10 07:35:06,176 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2019-09-10 07:35:06,446 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:35:06,723 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:35:07,065 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:35:07,394 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:35:07,727 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2019-09-10 07:35:07,978 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:35:08,277 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2019-09-10 07:35:08,635 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2019-09-10 07:35:09,046 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:35:09,466 WARN L188 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:35:10,116 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2019-09-10 07:35:10,459 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2019-09-10 07:35:10,848 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:35:11,274 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2019-09-10 07:35:11,735 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:35:12,295 WARN L188 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:35:12,846 WARN L188 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2019-09-10 07:35:13,329 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 07:35:13,758 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2019-09-10 07:35:14,152 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:35:14,658 WARN L188 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:35:15,014 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:35:15,406 WARN L188 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:35:15,781 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:35:16,151 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:35:16,418 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:35:16,751 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:35:17,197 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-10 07:35:17,554 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:35:17,887 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:35:18,319 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:35:18,936 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 97 [2019-09-10 07:35:19,340 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 93 [2019-09-10 07:35:19,692 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2019-09-10 07:35:19,971 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:35:20,346 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:35:20,703 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:35:21,083 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:35:21,469 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2019-09-10 07:35:21,836 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2019-09-10 07:35:22,144 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2019-09-10 07:35:22,537 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:35:22,827 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2019-09-10 07:35:23,253 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 93 [2019-09-10 07:35:23,640 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:35:24,063 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:35:24,643 WARN L188 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2019-09-10 07:35:25,142 WARN L188 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-10 07:35:25,554 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2019-09-10 07:35:25,954 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:35:26,286 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:35:26,540 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:35:26,919 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:35:27,366 WARN L188 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:35:27,743 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2019-09-10 07:35:28,045 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:35:28,419 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2019-09-10 07:35:28,931 WARN L188 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:35:29,342 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:35:29,720 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2019-09-10 07:35:29,996 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:35:30,341 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:35:30,821 WARN L188 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:35:31,091 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2019-09-10 07:35:31,551 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:35:32,102 WARN L188 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-09-10 07:35:32,360 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2019-09-10 07:35:32,610 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:35:33,023 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:35:33,355 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:35:33,697 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 07:35:33,973 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:35:34,412 WARN L188 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:35:34,988 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2019-09-10 07:35:35,507 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2019-09-10 07:35:35,879 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2019-09-10 07:35:36,265 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2019-09-10 07:35:36,737 WARN L188 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2019-09-10 07:35:37,086 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2019-09-10 07:35:37,409 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-10 07:35:37,870 WARN L188 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2019-09-10 07:35:38,216 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 89 [2019-09-10 07:35:38,632 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2019-09-10 07:35:39,092 WARN L188 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:35:39,499 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 94 [2019-09-10 07:35:39,861 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2019-09-10 07:35:40,186 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 89 [2019-09-10 07:35:40,579 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:35:40,971 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:35:41,285 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:35:41,598 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2019-09-10 07:35:41,976 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:35:42,365 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2019-09-10 07:35:42,789 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 91 [2019-09-10 07:35:43,269 WARN L188 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2019-09-10 07:35:43,690 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 92 [2019-09-10 07:35:44,019 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:35:44,476 WARN L188 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2019-09-10 07:35:44,910 WARN L188 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2019-09-10 07:35:45,169 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:35:45,471 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2019-09-10 07:35:45,773 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:35:46,067 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:35:46,485 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2019-09-10 07:35:46,898 WARN L188 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:35:47,187 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:35:47,880 WARN L188 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:35:48,366 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2019-09-10 07:35:48,670 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2019-09-10 07:35:49,083 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:35:49,661 WARN L188 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:35:49,940 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:35:50,313 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:35:50,632 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2019-09-10 07:35:50,956 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-10 07:35:51,269 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 07:35:51,608 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:35:51,893 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2019-09-10 07:35:52,287 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:35:52,641 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:35:53,032 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:35:53,371 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:35:53,763 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:35:54,087 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:35:54,504 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:35:54,803 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 85 [2019-09-10 07:35:55,182 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:35:55,504 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:35:55,840 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:35:56,215 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:35:56,537 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2019-09-10 07:35:56,798 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:35:57,161 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:35:57,429 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:35:57,710 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:35:57,999 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:35:58,242 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:35:58,500 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:35:58,899 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-10 07:35:59,174 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:35:59,650 WARN L188 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:36:00,301 WARN L188 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:36:00,916 WARN L188 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2019-09-10 07:36:01,524 WARN L188 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:36:02,365 WARN L188 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:36:02,668 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:36:03,013 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2019-09-10 07:36:03,437 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 97 [2019-09-10 07:36:03,988 WARN L188 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 95 [2019-09-10 07:36:04,697 WARN L188 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2019-09-10 07:36:05,252 WARN L188 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:36:05,648 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:36:05,964 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2019-09-10 07:36:06,374 WARN L188 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2019-09-10 07:36:06,736 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2019-09-10 07:36:07,083 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-10 07:36:07,358 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:36:07,804 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:36:08,228 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2019-09-10 07:36:08,566 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2019-09-10 07:36:08,844 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:36:09,147 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2019-09-10 07:36:09,579 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 07:36:09,949 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2019-09-10 07:36:10,374 WARN L188 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-09-10 07:36:10,690 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:36:11,012 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2019-09-10 07:36:11,365 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2019-09-10 07:36:11,684 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 07:36:11,988 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:36:12,477 WARN L188 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:36:12,910 WARN L188 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-09-10 07:36:13,411 WARN L188 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:36:13,716 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:36:13,984 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:36:14,292 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 85 [2019-09-10 07:36:14,658 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:36:15,114 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:36:15,400 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:36:15,686 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:36:16,016 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-10 07:36:16,325 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-10 07:36:16,706 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:36:17,006 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:36:17,294 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:36:17,612 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2019-09-10 07:36:17,950 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2019-09-10 07:36:18,311 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-10 07:36:18,651 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:36:19,044 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:36:19,327 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:36:19,595 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:36:19,978 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2019-09-10 07:36:20,322 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:36:20,718 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:36:21,088 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:36:21,356 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:36:21,985 WARN L188 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2019-09-10 07:36:22,343 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:36:22,724 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2019-09-10 07:36:23,112 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:36:23,492 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2019-09-10 07:36:23,958 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:36:24,312 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:36:24,592 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:36:25,110 WARN L188 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:36:25,404 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:36:25,922 WARN L188 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 07:36:26,411 WARN L188 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:36:26,734 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2019-09-10 07:36:27,053 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:36:27,353 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:36:27,657 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2019-09-10 07:36:28,015 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2019-09-10 07:36:28,373 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2019-09-10 07:36:28,776 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:36:29,016 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:36:29,615 WARN L188 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2019-09-10 07:36:29,884 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:36:30,290 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:36:30,818 WARN L188 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:36:31,276 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 07:36:31,652 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-10 07:36:31,972 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2019-09-10 07:36:32,455 WARN L188 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:36:32,824 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:36:33,122 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:36:33,438 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:36:34,061 WARN L188 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:36:34,567 WARN L188 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:36:34,974 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:36:35,247 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:36:35,614 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:36:35,950 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:36:36,272 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:36:36,614 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:36:37,100 WARN L188 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-09-10 07:36:37,535 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:36:37,863 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-10 07:36:38,231 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2019-09-10 07:36:38,569 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:36:38,891 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:36:40,410 WARN L188 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:36:40,838 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:36:41,453 WARN L188 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:36:41,879 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:36:42,350 WARN L188 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2019-09-10 07:36:42,642 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:36:42,985 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:36:43,573 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:36:43,968 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:36:44,393 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2019-09-10 07:36:45,097 WARN L188 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-10 07:36:45,548 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2019-09-10 07:36:45,871 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2019-09-10 07:36:46,284 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:36:46,569 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:36:47,009 WARN L188 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:36:47,424 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:36:47,991 WARN L188 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 91 [2019-09-10 07:36:48,501 WARN L188 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2019-09-10 07:36:48,811 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:36:49,283 WARN L188 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2019-09-10 07:36:49,696 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:36:50,207 WARN L188 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2019-09-10 07:36:50,578 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:36:50,994 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-09-10 07:36:51,323 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:36:51,795 WARN L188 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2019-09-10 07:36:52,176 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:36:52,550 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 92 [2019-09-10 07:36:52,930 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2019-09-10 07:36:53,286 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:36:53,591 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:36:53,988 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:36:54,330 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:36:54,704 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-10 07:36:55,150 WARN L188 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2019-09-10 07:36:55,598 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-10 07:36:56,043 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:36:56,433 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:36:56,917 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:36:57,286 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:36:57,591 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:36:57,868 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:36:58,158 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:36:58,445 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2019-09-10 07:36:58,739 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:36:58,998 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 07:36:59,260 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:36:59,564 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:36:59,972 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2019-09-10 07:37:00,217 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2019-09-10 07:37:00,491 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-10 07:37:00,842 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 07:37:01,533 WARN L188 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:37:02,182 WARN L188 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:37:02,489 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:37:02,756 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:37:03,172 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:37:03,525 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:37:03,849 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:37:04,290 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:37:04,613 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2019-09-10 07:37:04,958 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-10 07:37:05,311 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:37:05,598 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:37:06,012 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2019-09-10 07:37:06,493 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:37:06,881 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2019-09-10 07:37:07,532 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2019-09-10 07:37:07,904 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:37:08,268 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:37:08,682 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2019-09-10 07:37:08,988 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2019-09-10 07:37:09,547 WARN L188 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2019-09-10 07:37:09,885 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-10 07:37:10,265 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-10 07:37:10,659 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:37:10,969 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2019-09-10 07:37:11,355 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2019-09-10 07:37:11,761 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:37:12,066 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:37:12,350 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 07:37:12,639 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:37:13,333 WARN L188 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:37:13,721 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:37:14,193 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:37:14,516 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:37:14,928 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:37:15,331 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:37:15,550 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 07:37:15,829 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:37:16,076 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:37:16,334 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:37:16,633 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2019-09-10 07:37:16,955 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:37:17,325 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2019-09-10 07:37:17,689 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:37:18,070 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:37:18,390 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-10 07:37:18,811 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2019-09-10 07:37:19,174 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:37:19,515 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:37:19,859 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:37:20,164 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:37:20,691 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:37:21,085 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:37:21,448 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2019-09-10 07:37:21,833 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:37:22,193 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:37:22,519 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2019-09-10 07:37:22,884 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:37:23,322 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:37:23,661 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:37:24,068 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:37:24,498 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 07:37:24,860 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 07:37:25,231 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:37:25,568 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:37:25,881 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:37:26,211 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:37:26,725 WARN L188 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:37:27,041 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:37:27,430 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2019-09-10 07:37:27,989 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:37:28,440 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:37:28,785 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:37:29,189 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:37:29,845 WARN L188 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:37:30,162 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-10 07:37:30,386 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:37:30,650 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:37:31,050 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:37:31,362 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:37:31,790 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:37:32,278 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:37:32,656 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:37:33,011 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:37:33,783 WARN L188 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 07:37:34,093 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:37:34,603 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-10 07:37:34,988 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2019-09-10 07:37:35,383 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-10 07:37:35,826 WARN L188 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2019-09-10 07:37:36,295 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:37:36,592 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:37:37,054 WARN L188 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2019-09-10 07:37:37,391 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:37:37,718 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:37:38,123 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:37:38,512 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:37:38,904 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 94 [2019-09-10 07:37:39,220 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2019-09-10 07:37:39,690 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-09-10 07:37:40,015 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:37:40,342 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:37:40,716 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-10 07:37:41,058 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2019-09-10 07:37:41,346 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:37:41,782 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:37:42,302 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:37:42,931 WARN L188 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:37:43,436 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:37:44,234 WARN L188 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-10 07:37:44,874 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:37:45,150 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:37:45,775 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:37:46,044 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:37:46,574 WARN L188 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:37:46,837 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:37:47,298 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:37:47,618 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:37:48,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:37:48,615 INFO L93 Difference]: Finished difference Result 483926 states and 610811 transitions. [2019-09-10 07:37:48,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 589 states. [2019-09-10 07:37:48,615 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 108 [2019-09-10 07:37:48,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:37:49,238 INFO L225 Difference]: With dead ends: 483926 [2019-09-10 07:37:49,238 INFO L226 Difference]: Without dead ends: 483926 [2019-09-10 07:37:49,266 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 817 GetRequests, 184 SyntacticMatches, 13 SemanticMatches, 620 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183318 ImplicationChecksByTransitivity, 204.5s TimeCoverageRelationStatistics Valid=39234, Invalid=347028, Unknown=0, NotChecked=0, Total=386262 [2019-09-10 07:37:49,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483926 states. [2019-09-10 07:37:52,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483926 to 93324. [2019-09-10 07:37:52,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93324 states. [2019-09-10 07:37:52,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93324 states to 93324 states and 120982 transitions. [2019-09-10 07:37:52,156 INFO L78 Accepts]: Start accepts. Automaton has 93324 states and 120982 transitions. Word has length 108 [2019-09-10 07:37:52,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:37:52,157 INFO L475 AbstractCegarLoop]: Abstraction has 93324 states and 120982 transitions. [2019-09-10 07:37:52,157 INFO L476 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-09-10 07:37:52,157 INFO L276 IsEmpty]: Start isEmpty. Operand 93324 states and 120982 transitions. [2019-09-10 07:37:52,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 07:37:52,165 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:37:52,165 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:37:52,165 INFO L418 AbstractCegarLoop]: === Iteration 40 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:37:52,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:37:52,166 INFO L82 PathProgramCache]: Analyzing trace with hash -252800890, now seen corresponding path program 1 times [2019-09-10 07:37:52,166 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:37:52,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:37:52,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:37:52,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:37:52,167 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:37:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:37:52,444 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:37:52,444 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:37:52,444 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:37:52,444 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 110 with the following transitions: [2019-09-10 07:37:52,444 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [58], [61], [64], [68], [71], [74], [78], [81], [84], [87], [91], [94], [97], [101], [103], [106], [109], [112], [115], [117], [119], [122], [125], [128], [130], [132], [135], [138], [141], [143], [145], [148], [152], [155], [158], [162], [164], [167], [170], [173], [178], [180], [183], [186], [189], [191], [193], [196], [199], [204], [206], [209], [216], [218], [220], [223], [224], [226], [228], [237], [240], [244], [246], [249], [255], [258], [261], [263], [280], [283], [286], [288], [296], [299], [305], [308], [311], [313], [754], [755], [759], [760], [761] [2019-09-10 07:37:52,449 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:37:52,449 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:37:52,467 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:37:52,691 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:37:52,691 INFO L272 AbstractInterpreter]: Visited 102 different actions 465 times. Merged at 42 different actions 324 times. Widened at 12 different actions 41 times. Performed 1749 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1749 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 34 fixpoints after 8 different actions. Largest state had 147 variables. [2019-09-10 07:37:52,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:37:52,692 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:37:52,692 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:37:52,692 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:37:52,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:37:52,709 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:37:52,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:37:52,827 INFO L256 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 25 conjunts are in the unsatisfiable core [2019-09-10 07:37:52,830 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:37:53,397 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:53,467 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:53,702 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:54,137 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:37:54,137 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:37:54,453 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:54,453 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:54,454 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:55,174 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:55,258 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:55,259 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:55,439 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2019-09-10 07:37:55,658 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-10 07:37:55,659 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:55,659 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:57,745 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-10 07:37:57,855 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:37:57,859 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:37:57,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 15] total 43 [2019-09-10 07:37:57,859 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:37:57,860 INFO L454 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-09-10 07:37:57,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-09-10 07:37:57,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=1663, Unknown=0, NotChecked=0, Total=1806 [2019-09-10 07:37:57,861 INFO L87 Difference]: Start difference. First operand 93324 states and 120982 transitions. Second operand 30 states. [2019-09-10 07:38:04,562 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-10 07:38:05,425 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:38:07,002 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-09-10 07:38:07,735 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:38:10,483 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:38:15,759 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-10 07:38:18,921 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-10 07:38:20,966 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 07:38:21,835 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 07:38:23,707 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:38:27,368 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:38:27,563 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 07:38:29,431 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:38:30,535 WARN L188 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:38:32,663 WARN L188 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2019-09-10 07:38:35,575 WARN L188 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-10 07:38:35,849 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-09-10 07:38:37,135 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:38:37,564 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:38:38,425 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-10 07:38:38,901 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-09-10 07:38:41,572 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:38:41,946 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:38:42,596 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 07:38:43,229 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:38:43,655 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 07:38:44,067 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:38:44,370 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 07:38:45,770 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 07:38:46,245 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 07:38:51,938 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 07:38:52,592 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2019-09-10 07:38:55,912 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:38:56,352 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:38:57,184 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 07:38:57,823 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2019-09-10 07:39:00,804 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:39:01,602 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:39:02,345 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-09-10 07:39:03,942 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-09-10 07:39:04,520 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 07:39:06,058 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:39:06,554 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-10 07:39:07,582 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:39:07,911 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-10 07:39:08,643 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-10 07:39:11,294 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-10 07:39:12,103 WARN L188 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2019-09-10 07:39:12,555 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-10 07:39:14,144 WARN L188 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:39:14,567 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2019-09-10 07:39:18,049 WARN L188 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:39:19,230 WARN L188 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:39:21,043 WARN L188 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:39:22,005 WARN L188 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-10 07:39:22,804 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:39:24,459 WARN L188 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:39:25,345 WARN L188 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:39:25,834 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:39:31,994 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2019-09-10 07:39:37,545 WARN L188 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:39:38,567 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2019-09-10 07:39:39,401 WARN L188 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:39:41,082 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-10 07:39:41,686 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2019-09-10 07:39:41,990 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 07:39:43,668 WARN L188 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-10 07:39:44,129 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2019-09-10 07:39:44,574 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:39:45,475 WARN L188 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:39:45,781 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2019-09-10 07:39:48,298 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2019-09-10 07:39:48,666 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2019-09-10 07:39:49,828 WARN L188 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 07:39:53,180 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-09-10 07:39:54,605 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-09-10 07:39:56,159 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2019-09-10 07:39:56,460 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-10 07:39:58,056 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:40:00,300 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2019-09-10 07:40:01,019 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:40:01,933 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 07:40:02,290 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2019-09-10 07:40:03,939 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-09-10 07:40:06,970 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-10 07:40:13,827 WARN L188 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2019-09-10 07:40:14,296 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-10 07:40:15,118 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2019-09-10 07:40:15,992 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:40:16,575 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 07:40:17,680 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 07:40:19,435 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:40:20,189 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2019-09-10 07:40:20,593 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:40:21,351 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 07:40:23,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:40:23,705 INFO L93 Difference]: Finished difference Result 449184 states and 571892 transitions. [2019-09-10 07:40:23,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 265 states. [2019-09-10 07:40:23,705 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 109 [2019-09-10 07:40:23,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:40:24,387 INFO L225 Difference]: With dead ends: 449184 [2019-09-10 07:40:24,387 INFO L226 Difference]: Without dead ends: 449184 [2019-09-10 07:40:24,393 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 164 SyntacticMatches, 29 SemanticMatches, 303 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36200 ImplicationChecksByTransitivity, 97.7s TimeCoverageRelationStatistics Valid=9746, Invalid=82974, Unknown=0, NotChecked=0, Total=92720 [2019-09-10 07:40:24,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449184 states. [2019-09-10 07:40:30,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449184 to 168733. [2019-09-10 07:40:30,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168733 states. [2019-09-10 07:40:30,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168733 states to 168733 states and 218897 transitions. [2019-09-10 07:40:30,671 INFO L78 Accepts]: Start accepts. Automaton has 168733 states and 218897 transitions. Word has length 109 [2019-09-10 07:40:30,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:40:30,671 INFO L475 AbstractCegarLoop]: Abstraction has 168733 states and 218897 transitions. [2019-09-10 07:40:30,671 INFO L476 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-09-10 07:40:30,671 INFO L276 IsEmpty]: Start isEmpty. Operand 168733 states and 218897 transitions. [2019-09-10 07:40:30,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-09-10 07:40:30,682 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:40:30,682 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:40:30,682 INFO L418 AbstractCegarLoop]: === Iteration 41 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:40:30,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:40:30,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1505847849, now seen corresponding path program 1 times [2019-09-10 07:40:30,683 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:40:30,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:40:30,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:40:30,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:40:30,684 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:40:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:40:31,017 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:40:31,018 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:40:31,018 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:40:31,018 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 111 with the following transitions: [2019-09-10 07:40:31,018 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [58], [61], [64], [68], [71], [74], [78], [81], [84], [87], [91], [94], [97], [101], [103], [106], [109], [112], [115], [117], [119], [122], [125], [128], [130], [132], [135], [138], [143], [145], [148], [152], [155], [158], [162], [164], [167], [170], [173], [178], [180], [183], [186], [189], [191], [193], [196], [199], [204], [206], [209], [216], [218], [220], [223], [224], [226], [228], [237], [240], [244], [246], [249], [255], [258], [261], [263], [280], [283], [286], [288], [296], [299], [305], [308], [311], [313], [325], [347], [754], [755], [759], [760], [761] [2019-09-10 07:40:31,021 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:40:31,021 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:40:31,035 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:40:31,256 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:40:31,257 INFO L272 AbstractInterpreter]: Visited 103 different actions 419 times. Merged at 42 different actions 281 times. Widened at 11 different actions 29 times. Performed 1630 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1630 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 30 fixpoints after 7 different actions. Largest state had 147 variables. [2019-09-10 07:40:31,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:40:31,258 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:40:31,258 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:40:31,258 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:40:32,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:40:32,012 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:40:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:40:32,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 868 conjuncts, 16 conjunts are in the unsatisfiable core [2019-09-10 07:40:32,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:40:32,244 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:32,280 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:32,368 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:32,528 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:40:32,528 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:40:32,844 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:32,844 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:32,845 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:32,846 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:32,846 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:32,847 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:32,847 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:32,848 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:32,848 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:32,849 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:32,881 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:40:32,886 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:40:32,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10, 10] total 34 [2019-09-10 07:40:32,886 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:40:32,886 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-09-10 07:40:32,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-09-10 07:40:32,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=1024, Unknown=0, NotChecked=0, Total=1122 [2019-09-10 07:40:32,887 INFO L87 Difference]: Start difference. First operand 168733 states and 218897 transitions. Second operand 26 states. [2019-09-10 07:40:34,060 WARN L188 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2019-09-10 07:41:12,620 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-10 07:41:15,131 WARN L188 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-10 07:41:15,275 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2019-09-10 07:41:17,402 WARN L188 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2019-09-10 07:41:19,850 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-10 07:41:22,002 WARN L188 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2019-09-10 07:41:47,595 WARN L188 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2019-09-10 07:41:51,776 WARN L188 SmtUtils]: Spent 4.12 s on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2019-09-10 07:42:02,553 WARN L188 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2019-09-10 07:42:06,770 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-10 07:42:06,976 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-10 07:42:09,479 WARN L188 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-10 07:42:11,652 WARN L188 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-10 07:42:13,422 WARN L188 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-10 07:42:13,602 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-10 07:42:14,007 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2019-09-10 07:42:14,725 WARN L188 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-10 07:42:15,872 WARN L188 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-10 07:42:16,295 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-10 07:42:16,803 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-10 07:42:17,810 WARN L188 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-10 07:42:18,283 WARN L188 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2019-09-10 07:42:21,049 WARN L188 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-10 07:42:23,870 WARN L188 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-10 07:42:25,974 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-10 07:42:28,159 WARN L188 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-10 07:42:30,342 WARN L188 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2019-09-10 07:42:36,736 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-10 07:42:36,928 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-10 07:42:45,779 WARN L188 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-09-10 07:42:49,963 WARN L188 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-09-10 07:42:59,376 WARN L188 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-09-10 07:43:01,575 WARN L188 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 42 [2019-09-10 07:43:03,828 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2019-09-10 07:43:08,112 WARN L188 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-09-10 07:43:10,337 WARN L188 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2019-09-10 07:43:16,665 WARN L188 SmtUtils]: Spent 6.16 s on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2019-09-10 07:43:21,863 WARN L188 SmtUtils]: Spent 4.14 s on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-10 07:43:24,089 WARN L188 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-10 07:43:26,488 WARN L188 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-10 07:43:32,997 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-10 07:44:02,787 WARN L188 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2019-09-10 07:44:07,107 WARN L188 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-10 07:44:09,984 WARN L188 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2019-09-10 07:44:12,222 WARN L188 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-10 07:44:14,793 WARN L188 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2019-09-10 07:44:14,955 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-10 07:44:19,322 WARN L188 SmtUtils]: Spent 4.11 s on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2019-09-10 07:44:19,485 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-10 07:44:21,837 WARN L188 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-10 07:44:24,342 WARN L188 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-10 07:44:28,645 WARN L188 SmtUtils]: Spent 4.12 s on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2019-09-10 07:44:29,214 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2019-09-10 07:44:31,367 WARN L188 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2019-09-10 07:44:33,786 WARN L188 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2019-09-10 07:44:36,015 WARN L188 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2019-09-10 07:44:38,623 WARN L188 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2019-09-10 07:44:41,270 WARN L188 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2019-09-10 07:44:43,570 WARN L188 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2019-09-10 07:44:43,825 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-10 07:44:47,977 WARN L188 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2019-09-10 07:44:50,110 WARN L188 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2019-09-10 07:44:54,287 WARN L188 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2019-09-10 07:44:58,579 WARN L188 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2019-09-10 07:45:11,754 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-09-10 07:45:13,943 WARN L188 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-10 07:45:16,060 WARN L188 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 37 DAG size of output: 33