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.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 08:13:59,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 08:13:59,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 08:14:00,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 08:14:00,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 08:14:00,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 08:14:00,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 08:14:00,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 08:14:00,028 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 08:14:00,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 08:14:00,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 08:14:00,031 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 08:14:00,031 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 08:14:00,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 08:14:00,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 08:14:00,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 08:14:00,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 08:14:00,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 08:14:00,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 08:14:00,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 08:14:00,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 08:14:00,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 08:14:00,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 08:14:00,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 08:14:00,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-10 08:14:00,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 08:14:00,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 08:14:00,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 08:14:00,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 08:14:00,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 08:14:00,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 08:14:00,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 08:14:00,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 08:14:00,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 08:14:00,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 08:14:00,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 08:14:00,054 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 08:14:00,069 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 08:14:00,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 08:14:00,070 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 08:14:00,070 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 08:14:00,070 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 08:14:00,071 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 08:14:00,071 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 08:14:00,071 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 08:14:00,071 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 08:14:00,071 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 08:14:00,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 08:14:00,072 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 08:14:00,073 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 08:14:00,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 08:14:00,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 08:14:00,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 08:14:00,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 08:14:00,073 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 08:14:00,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 08:14:00,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 08:14:00,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 08:14:00,076 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 08:14:00,076 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 08:14:00,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 08:14:00,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 08:14:00,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 08:14:00,077 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 08:14:00,077 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 08:14:00,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 08:14:00,078 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 08:14:00,115 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 08:14:00,131 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 08:14:00,134 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 08:14:00,135 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 08:14:00,136 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 08:14:00,137 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2019-09-10 08:14:00,218 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0961e823/7a33f89c7ab341d0bebbb4670b31c78e/FLAGde5c3cb0a [2019-09-10 08:14:00,743 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 08:14:00,744 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2019-09-10 08:14:00,756 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0961e823/7a33f89c7ab341d0bebbb4670b31c78e/FLAGde5c3cb0a [2019-09-10 08:14:01,109 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0961e823/7a33f89c7ab341d0bebbb4670b31c78e [2019-09-10 08:14:01,119 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 08:14:01,121 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 08:14:01,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 08:14:01,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 08:14:01,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 08:14:01,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 08:14:01" (1/1) ... [2019-09-10 08:14:01,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fa9071e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 08:14:01, skipping insertion in model container [2019-09-10 08:14:01,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 08:14:01" (1/1) ... [2019-09-10 08:14:01,137 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 08:14:01,198 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 08:14:01,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 08:14:01,673 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 08:14:01,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 08:14:01,802 INFO L192 MainTranslator]: Completed translation [2019-09-10 08:14:01,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 08:14:01 WrapperNode [2019-09-10 08:14:01,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 08:14:01,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 08:14:01,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 08:14:01,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 08:14:01,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 08:14:01" (1/1) ... [2019-09-10 08:14:01,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 08:14:01" (1/1) ... [2019-09-10 08:14:01,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 08:14:01" (1/1) ... [2019-09-10 08:14:01,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 08:14:01" (1/1) ... [2019-09-10 08:14:01,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 08:14:01" (1/1) ... [2019-09-10 08:14:01,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 08:14:01" (1/1) ... [2019-09-10 08:14:01,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 08:14:01" (1/1) ... [2019-09-10 08:14:01,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 08:14:01,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 08:14:01,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 08:14:01,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 08:14:01,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 08:14:01" (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 08:14:01,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 08:14:01,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 08:14:01,962 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 08:14:01,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 08:14:01,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-10 08:14:01,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-10 08:14:01,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-09-10 08:14:01,963 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-10 08:14:01,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 08:14:01,963 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-10 08:14:01,963 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-10 08:14:01,963 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-10 08:14:01,964 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-10 08:14:01,964 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-10 08:14:01,964 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2019-09-10 08:14:01,964 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2019-09-10 08:14:01,964 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2019-09-10 08:14:01,965 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-10 08:14:01,965 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-10 08:14:01,965 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 08:14:01,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 08:14:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 08:14:02,864 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 08:14:02,865 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 08:14:02,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 08:14:02 BoogieIcfgContainer [2019-09-10 08:14:02,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 08:14:02,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 08:14:02,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 08:14:02,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 08:14:02,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 08:14:01" (1/3) ... [2019-09-10 08:14:02,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15c7d8e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 08:14:02, skipping insertion in model container [2019-09-10 08:14:02,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 08:14:01" (2/3) ... [2019-09-10 08:14:02,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15c7d8e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 08:14:02, skipping insertion in model container [2019-09-10 08:14:02,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 08:14:02" (3/3) ... [2019-09-10 08:14:02,881 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2019-09-10 08:14:02,891 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 08:14:02,912 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 08:14:02,929 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 08:14:02,959 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 08:14:02,960 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 08:14:02,960 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 08:14:02,960 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 08:14:02,960 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 08:14:02,960 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 08:14:02,960 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 08:14:02,961 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 08:14:02,995 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2019-09-10 08:14:03,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-10 08:14:03,008 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:03,009 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:14:03,011 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:03,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:03,016 INFO L82 PathProgramCache]: Analyzing trace with hash -911853224, now seen corresponding path program 1 times [2019-09-10 08:14:03,018 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:03,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:03,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:03,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:03,072 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:03,467 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 08:14:03,469 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:03,469 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 08:14:03,470 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:03,478 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 08:14:03,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 08:14:03,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 08:14:03,496 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 3 states. [2019-09-10 08:14:03,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:03,654 INFO L93 Difference]: Finished difference Result 279 states and 465 transitions. [2019-09-10 08:14:03,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 08:14:03,656 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2019-09-10 08:14:03,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:03,672 INFO L225 Difference]: With dead ends: 279 [2019-09-10 08:14:03,672 INFO L226 Difference]: Without dead ends: 271 [2019-09-10 08:14:03,674 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 08:14:03,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2019-09-10 08:14:03,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 269. [2019-09-10 08:14:03,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2019-09-10 08:14:03,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 388 transitions. [2019-09-10 08:14:03,739 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 388 transitions. Word has length 94 [2019-09-10 08:14:03,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:03,740 INFO L475 AbstractCegarLoop]: Abstraction has 269 states and 388 transitions. [2019-09-10 08:14:03,740 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 08:14:03,740 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 388 transitions. [2019-09-10 08:14:03,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-09-10 08:14:03,744 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:03,745 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:14:03,745 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:03,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:03,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1894560043, now seen corresponding path program 1 times [2019-09-10 08:14:03,746 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:03,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:03,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:03,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:03,749 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:03,978 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 08:14:03,978 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:03,979 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 08:14:03,979 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:03,981 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 08:14:03,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 08:14:03,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 08:14:03,982 INFO L87 Difference]: Start difference. First operand 269 states and 388 transitions. Second operand 5 states. [2019-09-10 08:14:04,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:04,404 INFO L93 Difference]: Finished difference Result 452 states and 675 transitions. [2019-09-10 08:14:04,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 08:14:04,404 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 96 [2019-09-10 08:14:04,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:04,408 INFO L225 Difference]: With dead ends: 452 [2019-09-10 08:14:04,409 INFO L226 Difference]: Without dead ends: 452 [2019-09-10 08:14:04,410 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 08:14:04,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2019-09-10 08:14:04,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 450. [2019-09-10 08:14:04,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2019-09-10 08:14:04,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 674 transitions. [2019-09-10 08:14:04,433 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 674 transitions. Word has length 96 [2019-09-10 08:14:04,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:04,434 INFO L475 AbstractCegarLoop]: Abstraction has 450 states and 674 transitions. [2019-09-10 08:14:04,434 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 08:14:04,434 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 674 transitions. [2019-09-10 08:14:04,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-09-10 08:14:04,438 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:04,438 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:14:04,439 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:04,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:04,439 INFO L82 PathProgramCache]: Analyzing trace with hash -787666345, now seen corresponding path program 1 times [2019-09-10 08:14:04,440 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:04,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:04,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:04,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:04,442 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:04,654 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 08:14:04,654 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:04,655 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 08:14:04,655 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:04,656 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 08:14:04,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 08:14:04,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 08:14:04,656 INFO L87 Difference]: Start difference. First operand 450 states and 674 transitions. Second operand 5 states. [2019-09-10 08:14:04,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:04,860 INFO L93 Difference]: Finished difference Result 450 states and 669 transitions. [2019-09-10 08:14:04,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 08:14:04,860 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2019-09-10 08:14:04,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:04,864 INFO L225 Difference]: With dead ends: 450 [2019-09-10 08:14:04,864 INFO L226 Difference]: Without dead ends: 450 [2019-09-10 08:14:04,865 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 08:14:04,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2019-09-10 08:14:04,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2019-09-10 08:14:04,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2019-09-10 08:14:04,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 669 transitions. [2019-09-10 08:14:04,879 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 669 transitions. Word has length 97 [2019-09-10 08:14:04,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:04,879 INFO L475 AbstractCegarLoop]: Abstraction has 450 states and 669 transitions. [2019-09-10 08:14:04,879 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 08:14:04,880 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 669 transitions. [2019-09-10 08:14:04,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-09-10 08:14:04,884 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:04,884 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:14:04,884 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:04,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:04,885 INFO L82 PathProgramCache]: Analyzing trace with hash 263026140, now seen corresponding path program 1 times [2019-09-10 08:14:04,885 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:04,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:04,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:04,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:04,889 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:04,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:05,037 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 08:14:05,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:05,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 08:14:05,038 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:05,038 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 08:14:05,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 08:14:05,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 08:14:05,039 INFO L87 Difference]: Start difference. First operand 450 states and 669 transitions. Second operand 5 states. [2019-09-10 08:14:05,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:05,241 INFO L93 Difference]: Finished difference Result 450 states and 664 transitions. [2019-09-10 08:14:05,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 08:14:05,241 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2019-09-10 08:14:05,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:05,246 INFO L225 Difference]: With dead ends: 450 [2019-09-10 08:14:05,246 INFO L226 Difference]: Without dead ends: 450 [2019-09-10 08:14:05,246 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 08:14:05,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2019-09-10 08:14:05,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2019-09-10 08:14:05,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2019-09-10 08:14:05,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 664 transitions. [2019-09-10 08:14:05,260 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 664 transitions. Word has length 98 [2019-09-10 08:14:05,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:05,260 INFO L475 AbstractCegarLoop]: Abstraction has 450 states and 664 transitions. [2019-09-10 08:14:05,276 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 08:14:05,276 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 664 transitions. [2019-09-10 08:14:05,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-09-10 08:14:05,282 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:05,283 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:14:05,283 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:05,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:05,284 INFO L82 PathProgramCache]: Analyzing trace with hash 699898071, now seen corresponding path program 1 times [2019-09-10 08:14:05,284 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:05,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:05,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:05,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:05,291 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:05,444 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 08:14:05,444 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:05,444 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 08:14:05,444 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:05,445 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 08:14:05,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 08:14:05,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 08:14:05,446 INFO L87 Difference]: Start difference. First operand 450 states and 664 transitions. Second operand 5 states. [2019-09-10 08:14:05,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:05,622 INFO L93 Difference]: Finished difference Result 450 states and 659 transitions. [2019-09-10 08:14:05,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 08:14:05,622 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 99 [2019-09-10 08:14:05,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:05,627 INFO L225 Difference]: With dead ends: 450 [2019-09-10 08:14:05,628 INFO L226 Difference]: Without dead ends: 450 [2019-09-10 08:14:05,628 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 08:14:05,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2019-09-10 08:14:05,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2019-09-10 08:14:05,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2019-09-10 08:14:05,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 659 transitions. [2019-09-10 08:14:05,643 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 659 transitions. Word has length 99 [2019-09-10 08:14:05,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:05,644 INFO L475 AbstractCegarLoop]: Abstraction has 450 states and 659 transitions. [2019-09-10 08:14:05,645 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 08:14:05,645 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 659 transitions. [2019-09-10 08:14:05,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-09-10 08:14:05,652 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:05,652 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:14:05,653 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:05,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:05,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1306674069, now seen corresponding path program 1 times [2019-09-10 08:14:05,653 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:05,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:05,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:05,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:05,657 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:05,742 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 08:14:05,743 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:05,743 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 08:14:05,743 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:05,744 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 08:14:05,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 08:14:05,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 08:14:05,744 INFO L87 Difference]: Start difference. First operand 450 states and 659 transitions. Second operand 5 states. [2019-09-10 08:14:05,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:05,908 INFO L93 Difference]: Finished difference Result 450 states and 654 transitions. [2019-09-10 08:14:05,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 08:14:05,909 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2019-09-10 08:14:05,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:05,911 INFO L225 Difference]: With dead ends: 450 [2019-09-10 08:14:05,911 INFO L226 Difference]: Without dead ends: 450 [2019-09-10 08:14:05,912 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 08:14:05,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2019-09-10 08:14:05,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2019-09-10 08:14:05,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2019-09-10 08:14:05,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 654 transitions. [2019-09-10 08:14:05,923 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 654 transitions. Word has length 100 [2019-09-10 08:14:05,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:05,923 INFO L475 AbstractCegarLoop]: Abstraction has 450 states and 654 transitions. [2019-09-10 08:14:05,923 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 08:14:05,924 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 654 transitions. [2019-09-10 08:14:05,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-09-10 08:14:05,925 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:05,925 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:14:05,925 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:05,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:05,926 INFO L82 PathProgramCache]: Analyzing trace with hash 2126638581, now seen corresponding path program 1 times [2019-09-10 08:14:05,926 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:05,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:05,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:05,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:05,928 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:06,043 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 08:14:06,044 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:06,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 08:14:06,044 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:06,045 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 08:14:06,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 08:14:06,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 08:14:06,046 INFO L87 Difference]: Start difference. First operand 450 states and 654 transitions. Second operand 5 states. [2019-09-10 08:14:06,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:06,199 INFO L93 Difference]: Finished difference Result 450 states and 649 transitions. [2019-09-10 08:14:06,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 08:14:06,200 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2019-09-10 08:14:06,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:06,202 INFO L225 Difference]: With dead ends: 450 [2019-09-10 08:14:06,202 INFO L226 Difference]: Without dead ends: 450 [2019-09-10 08:14:06,203 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 08:14:06,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2019-09-10 08:14:06,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2019-09-10 08:14:06,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2019-09-10 08:14:06,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 649 transitions. [2019-09-10 08:14:06,214 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 649 transitions. Word has length 101 [2019-09-10 08:14:06,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:06,214 INFO L475 AbstractCegarLoop]: Abstraction has 450 states and 649 transitions. [2019-09-10 08:14:06,214 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 08:14:06,215 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 649 transitions. [2019-09-10 08:14:06,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-10 08:14:06,216 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:06,216 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:14:06,216 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:06,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:06,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1373809086, now seen corresponding path program 1 times [2019-09-10 08:14:06,217 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:06,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:06,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:06,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:06,219 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:06,379 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 08:14:06,380 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:06,380 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 08:14:06,380 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:06,381 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 08:14:06,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 08:14:06,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-09-10 08:14:06,381 INFO L87 Difference]: Start difference. First operand 450 states and 649 transitions. Second operand 8 states. [2019-09-10 08:14:06,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:06,650 INFO L93 Difference]: Finished difference Result 1985 states and 2972 transitions. [2019-09-10 08:14:06,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 08:14:06,651 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 102 [2019-09-10 08:14:06,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:06,660 INFO L225 Difference]: With dead ends: 1985 [2019-09-10 08:14:06,661 INFO L226 Difference]: Without dead ends: 1985 [2019-09-10 08:14:06,661 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2019-09-10 08:14:06,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2019-09-10 08:14:06,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 583. [2019-09-10 08:14:06,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2019-09-10 08:14:06,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 852 transitions. [2019-09-10 08:14:06,687 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 852 transitions. Word has length 102 [2019-09-10 08:14:06,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:06,687 INFO L475 AbstractCegarLoop]: Abstraction has 583 states and 852 transitions. [2019-09-10 08:14:06,687 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 08:14:06,688 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 852 transitions. [2019-09-10 08:14:06,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-10 08:14:06,689 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:06,689 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:14:06,689 INFO L418 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:06,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:06,690 INFO L82 PathProgramCache]: Analyzing trace with hash 2021773123, now seen corresponding path program 1 times [2019-09-10 08:14:06,690 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:06,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:06,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:06,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:06,691 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:06,935 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 08:14:06,936 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:06,936 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 08:14:06,936 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:06,937 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 08:14:06,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 08:14:06,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-09-10 08:14:06,938 INFO L87 Difference]: Start difference. First operand 583 states and 852 transitions. Second operand 8 states. [2019-09-10 08:14:07,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:07,328 INFO L93 Difference]: Finished difference Result 2135 states and 3203 transitions. [2019-09-10 08:14:07,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 08:14:07,329 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 102 [2019-09-10 08:14:07,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:07,340 INFO L225 Difference]: With dead ends: 2135 [2019-09-10 08:14:07,340 INFO L226 Difference]: Without dead ends: 2135 [2019-09-10 08:14:07,341 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2019-09-10 08:14:07,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2135 states. [2019-09-10 08:14:07,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2135 to 933. [2019-09-10 08:14:07,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2019-09-10 08:14:07,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1390 transitions. [2019-09-10 08:14:07,379 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1390 transitions. Word has length 102 [2019-09-10 08:14:07,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:07,379 INFO L475 AbstractCegarLoop]: Abstraction has 933 states and 1390 transitions. [2019-09-10 08:14:07,380 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 08:14:07,380 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1390 transitions. [2019-09-10 08:14:07,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-10 08:14:07,381 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:07,381 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:14:07,382 INFO L418 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:07,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:07,382 INFO L82 PathProgramCache]: Analyzing trace with hash -323435815, now seen corresponding path program 1 times [2019-09-10 08:14:07,382 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:07,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:07,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:07,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:07,384 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:07,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:07,483 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 08:14:07,484 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:07,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 08:14:07,484 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:07,485 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 08:14:07,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 08:14:07,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 08:14:07,485 INFO L87 Difference]: Start difference. First operand 933 states and 1390 transitions. Second operand 5 states. [2019-09-10 08:14:07,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:07,583 INFO L93 Difference]: Finished difference Result 1527 states and 2290 transitions. [2019-09-10 08:14:07,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 08:14:07,583 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2019-09-10 08:14:07,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:07,593 INFO L225 Difference]: With dead ends: 1527 [2019-09-10 08:14:07,594 INFO L226 Difference]: Without dead ends: 1527 [2019-09-10 08:14:07,594 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 08:14:07,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2019-09-10 08:14:07,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1359. [2019-09-10 08:14:07,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1359 states. [2019-09-10 08:14:07,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 2041 transitions. [2019-09-10 08:14:07,635 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 2041 transitions. Word has length 102 [2019-09-10 08:14:07,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:07,635 INFO L475 AbstractCegarLoop]: Abstraction has 1359 states and 2041 transitions. [2019-09-10 08:14:07,636 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 08:14:07,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 2041 transitions. [2019-09-10 08:14:07,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-10 08:14:07,638 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:07,638 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:14:07,639 INFO L418 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:07,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:07,639 INFO L82 PathProgramCache]: Analyzing trace with hash 602278735, now seen corresponding path program 1 times [2019-09-10 08:14:07,639 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:07,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:07,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:07,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:07,641 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:07,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:07,732 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 08:14:07,732 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:07,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 08:14:07,733 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:07,733 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 08:14:07,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 08:14:07,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 08:14:07,734 INFO L87 Difference]: Start difference. First operand 1359 states and 2041 transitions. Second operand 3 states. [2019-09-10 08:14:07,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:07,804 INFO L93 Difference]: Finished difference Result 1499 states and 2237 transitions. [2019-09-10 08:14:07,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 08:14:07,805 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2019-09-10 08:14:07,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:07,815 INFO L225 Difference]: With dead ends: 1499 [2019-09-10 08:14:07,815 INFO L226 Difference]: Without dead ends: 1499 [2019-09-10 08:14:07,816 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 08:14:07,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2019-09-10 08:14:07,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1497. [2019-09-10 08:14:07,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1497 states. [2019-09-10 08:14:07,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 2236 transitions. [2019-09-10 08:14:07,893 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 2236 transitions. Word has length 102 [2019-09-10 08:14:07,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:07,894 INFO L475 AbstractCegarLoop]: Abstraction has 1497 states and 2236 transitions. [2019-09-10 08:14:07,894 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 08:14:07,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 2236 transitions. [2019-09-10 08:14:07,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-10 08:14:07,896 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:07,896 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:14:07,896 INFO L418 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:07,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:07,897 INFO L82 PathProgramCache]: Analyzing trace with hash 359154384, now seen corresponding path program 1 times [2019-09-10 08:14:07,897 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:07,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:07,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:07,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:07,900 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:08,009 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 08:14:08,010 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:08,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 08:14:08,010 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:08,011 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 08:14:08,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 08:14:08,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 08:14:08,011 INFO L87 Difference]: Start difference. First operand 1497 states and 2236 transitions. Second operand 3 states. [2019-09-10 08:14:08,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:08,056 INFO L93 Difference]: Finished difference Result 2621 states and 3884 transitions. [2019-09-10 08:14:08,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 08:14:08,057 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2019-09-10 08:14:08,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:08,069 INFO L225 Difference]: With dead ends: 2621 [2019-09-10 08:14:08,070 INFO L226 Difference]: Without dead ends: 2621 [2019-09-10 08:14:08,070 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 08:14:08,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2621 states. [2019-09-10 08:14:08,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2621 to 2583. [2019-09-10 08:14:08,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2583 states. [2019-09-10 08:14:08,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2583 states to 2583 states and 3829 transitions. [2019-09-10 08:14:08,132 INFO L78 Accepts]: Start accepts. Automaton has 2583 states and 3829 transitions. Word has length 102 [2019-09-10 08:14:08,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:08,133 INFO L475 AbstractCegarLoop]: Abstraction has 2583 states and 3829 transitions. [2019-09-10 08:14:08,133 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 08:14:08,133 INFO L276 IsEmpty]: Start isEmpty. Operand 2583 states and 3829 transitions. [2019-09-10 08:14:08,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-10 08:14:08,135 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:08,135 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:14:08,135 INFO L418 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:08,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:08,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1507490450, now seen corresponding path program 1 times [2019-09-10 08:14:08,136 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:08,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:08,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:08,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:08,137 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:08,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:08,317 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 08:14:08,318 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:08,318 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 08:14:08,318 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:08,318 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 08:14:08,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 08:14:08,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-10 08:14:08,319 INFO L87 Difference]: Start difference. First operand 2583 states and 3829 transitions. Second operand 8 states. [2019-09-10 08:14:08,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:08,588 INFO L93 Difference]: Finished difference Result 7285 states and 10844 transitions. [2019-09-10 08:14:08,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 08:14:08,589 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 102 [2019-09-10 08:14:08,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:08,629 INFO L225 Difference]: With dead ends: 7285 [2019-09-10 08:14:08,629 INFO L226 Difference]: Without dead ends: 7285 [2019-09-10 08:14:08,630 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2019-09-10 08:14:08,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7285 states. [2019-09-10 08:14:08,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7285 to 3103. [2019-09-10 08:14:08,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3103 states. [2019-09-10 08:14:08,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 4603 transitions. [2019-09-10 08:14:08,761 INFO L78 Accepts]: Start accepts. Automaton has 3103 states and 4603 transitions. Word has length 102 [2019-09-10 08:14:08,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:08,761 INFO L475 AbstractCegarLoop]: Abstraction has 3103 states and 4603 transitions. [2019-09-10 08:14:08,761 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 08:14:08,762 INFO L276 IsEmpty]: Start isEmpty. Operand 3103 states and 4603 transitions. [2019-09-10 08:14:08,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-10 08:14:08,763 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:08,764 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:14:08,764 INFO L418 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:08,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:08,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1474006360, now seen corresponding path program 1 times [2019-09-10 08:14:08,764 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:08,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:08,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:08,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:08,766 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:08,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:08,875 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 08:14:08,875 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:08,876 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 08:14:08,876 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:08,876 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 08:14:08,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 08:14:08,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 08:14:08,899 INFO L87 Difference]: Start difference. First operand 3103 states and 4603 transitions. Second operand 5 states. [2019-09-10 08:14:09,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:09,031 INFO L93 Difference]: Finished difference Result 3739 states and 5543 transitions. [2019-09-10 08:14:09,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 08:14:09,032 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2019-09-10 08:14:09,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:09,051 INFO L225 Difference]: With dead ends: 3739 [2019-09-10 08:14:09,051 INFO L226 Difference]: Without dead ends: 3739 [2019-09-10 08:14:09,052 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 08:14:09,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3739 states. [2019-09-10 08:14:09,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3739 to 3383. [2019-09-10 08:14:09,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3383 states. [2019-09-10 08:14:09,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3383 states to 3383 states and 5023 transitions. [2019-09-10 08:14:09,160 INFO L78 Accepts]: Start accepts. Automaton has 3383 states and 5023 transitions. Word has length 102 [2019-09-10 08:14:09,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:09,160 INFO L475 AbstractCegarLoop]: Abstraction has 3383 states and 5023 transitions. [2019-09-10 08:14:09,160 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 08:14:09,161 INFO L276 IsEmpty]: Start isEmpty. Operand 3383 states and 5023 transitions. [2019-09-10 08:14:09,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-10 08:14:09,162 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:09,162 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:14:09,163 INFO L418 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:09,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:09,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1383468205, now seen corresponding path program 1 times [2019-09-10 08:14:09,163 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:09,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:09,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:09,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:09,165 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:09,320 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 08:14:09,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:09,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 08:14:09,321 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:09,321 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 08:14:09,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 08:14:09,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-10 08:14:09,322 INFO L87 Difference]: Start difference. First operand 3383 states and 5023 transitions. Second operand 8 states. [2019-09-10 08:14:09,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:09,592 INFO L93 Difference]: Finished difference Result 8446 states and 12583 transitions. [2019-09-10 08:14:09,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 08:14:09,592 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 102 [2019-09-10 08:14:09,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:09,631 INFO L225 Difference]: With dead ends: 8446 [2019-09-10 08:14:09,631 INFO L226 Difference]: Without dead ends: 8446 [2019-09-10 08:14:09,633 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2019-09-10 08:14:09,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8446 states. [2019-09-10 08:14:09,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8446 to 3922. [2019-09-10 08:14:09,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3922 states. [2019-09-10 08:14:09,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3922 states to 3922 states and 5828 transitions. [2019-09-10 08:14:09,747 INFO L78 Accepts]: Start accepts. Automaton has 3922 states and 5828 transitions. Word has length 102 [2019-09-10 08:14:09,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:09,747 INFO L475 AbstractCegarLoop]: Abstraction has 3922 states and 5828 transitions. [2019-09-10 08:14:09,747 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 08:14:09,747 INFO L276 IsEmpty]: Start isEmpty. Operand 3922 states and 5828 transitions. [2019-09-10 08:14:09,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-10 08:14:09,749 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:09,749 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, 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 08:14:09,749 INFO L418 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:09,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:09,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1488862363, now seen corresponding path program 1 times [2019-09-10 08:14:09,750 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:09,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:09,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:09,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:09,751 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:09,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:09,841 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 08:14:09,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:09,842 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 08:14:09,842 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:09,842 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 08:14:09,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 08:14:09,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 08:14:09,843 INFO L87 Difference]: Start difference. First operand 3922 states and 5828 transitions. Second operand 5 states. [2019-09-10 08:14:09,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:09,926 INFO L93 Difference]: Finished difference Result 6648 states and 9841 transitions. [2019-09-10 08:14:09,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 08:14:09,926 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 103 [2019-09-10 08:14:09,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:09,940 INFO L225 Difference]: With dead ends: 6648 [2019-09-10 08:14:09,941 INFO L226 Difference]: Without dead ends: 6648 [2019-09-10 08:14:09,941 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-10 08:14:09,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6648 states. [2019-09-10 08:14:10,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6648 to 3950. [2019-09-10 08:14:10,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3950 states. [2019-09-10 08:14:10,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3950 states to 3950 states and 5844 transitions. [2019-09-10 08:14:10,037 INFO L78 Accepts]: Start accepts. Automaton has 3950 states and 5844 transitions. Word has length 103 [2019-09-10 08:14:10,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:10,038 INFO L475 AbstractCegarLoop]: Abstraction has 3950 states and 5844 transitions. [2019-09-10 08:14:10,038 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 08:14:10,038 INFO L276 IsEmpty]: Start isEmpty. Operand 3950 states and 5844 transitions. [2019-09-10 08:14:10,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-10 08:14:10,040 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:10,040 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, 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 08:14:10,040 INFO L418 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:10,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:10,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1518421097, now seen corresponding path program 1 times [2019-09-10 08:14:10,041 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:10,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:10,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:10,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:10,043 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:10,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:10,278 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 08:14:10,279 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:10,279 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 08:14:10,279 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:10,279 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 08:14:10,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 08:14:10,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-09-10 08:14:10,280 INFO L87 Difference]: Start difference. First operand 3950 states and 5844 transitions. Second operand 9 states. [2019-09-10 08:14:10,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:10,932 INFO L93 Difference]: Finished difference Result 7607 states and 11265 transitions. [2019-09-10 08:14:10,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 08:14:10,933 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 103 [2019-09-10 08:14:10,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:10,951 INFO L225 Difference]: With dead ends: 7607 [2019-09-10 08:14:10,951 INFO L226 Difference]: Without dead ends: 7607 [2019-09-10 08:14:10,952 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2019-09-10 08:14:10,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7607 states. [2019-09-10 08:14:11,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7607 to 3950. [2019-09-10 08:14:11,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3950 states. [2019-09-10 08:14:11,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3950 states to 3950 states and 5843 transitions. [2019-09-10 08:14:11,054 INFO L78 Accepts]: Start accepts. Automaton has 3950 states and 5843 transitions. Word has length 103 [2019-09-10 08:14:11,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:11,055 INFO L475 AbstractCegarLoop]: Abstraction has 3950 states and 5843 transitions. [2019-09-10 08:14:11,055 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 08:14:11,055 INFO L276 IsEmpty]: Start isEmpty. Operand 3950 states and 5843 transitions. [2019-09-10 08:14:11,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-10 08:14:11,057 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:11,057 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, 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 08:14:11,057 INFO L418 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:11,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:11,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1934155735, now seen corresponding path program 1 times [2019-09-10 08:14:11,058 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:11,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:11,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:11,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:11,060 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:11,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:11,398 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 08:14:11,398 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:11,398 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 08:14:11,398 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:11,399 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 08:14:11,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 08:14:11,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-09-10 08:14:11,400 INFO L87 Difference]: Start difference. First operand 3950 states and 5843 transitions. Second operand 10 states. [2019-09-10 08:14:12,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:12,533 INFO L93 Difference]: Finished difference Result 6825 states and 10055 transitions. [2019-09-10 08:14:12,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-10 08:14:12,533 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 104 [2019-09-10 08:14:12,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:12,553 INFO L225 Difference]: With dead ends: 6825 [2019-09-10 08:14:12,553 INFO L226 Difference]: Without dead ends: 6825 [2019-09-10 08:14:12,554 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2019-09-10 08:14:12,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6825 states. [2019-09-10 08:14:12,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6825 to 3950. [2019-09-10 08:14:12,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3950 states. [2019-09-10 08:14:12,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3950 states to 3950 states and 5840 transitions. [2019-09-10 08:14:12,680 INFO L78 Accepts]: Start accepts. Automaton has 3950 states and 5840 transitions. Word has length 104 [2019-09-10 08:14:12,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:12,680 INFO L475 AbstractCegarLoop]: Abstraction has 3950 states and 5840 transitions. [2019-09-10 08:14:12,680 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 08:14:12,680 INFO L276 IsEmpty]: Start isEmpty. Operand 3950 states and 5840 transitions. [2019-09-10 08:14:12,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-10 08:14:12,682 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:12,682 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, 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 08:14:12,684 INFO L418 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:12,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:12,684 INFO L82 PathProgramCache]: Analyzing trace with hash 85263168, now seen corresponding path program 1 times [2019-09-10 08:14:12,684 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:12,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:12,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:12,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:12,686 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:12,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:12,923 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 08:14:12,977 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:12,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 08:14:12,977 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:12,978 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 08:14:12,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 08:14:12,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-09-10 08:14:12,979 INFO L87 Difference]: Start difference. First operand 3950 states and 5840 transitions. Second operand 10 states. [2019-09-10 08:14:13,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:13,911 INFO L93 Difference]: Finished difference Result 7864 states and 11597 transitions. [2019-09-10 08:14:13,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-10 08:14:13,911 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 104 [2019-09-10 08:14:13,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:13,929 INFO L225 Difference]: With dead ends: 7864 [2019-09-10 08:14:13,929 INFO L226 Difference]: Without dead ends: 7864 [2019-09-10 08:14:13,930 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2019-09-10 08:14:13,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7864 states. [2019-09-10 08:14:14,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7864 to 3950. [2019-09-10 08:14:14,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3950 states. [2019-09-10 08:14:14,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3950 states to 3950 states and 5834 transitions. [2019-09-10 08:14:14,032 INFO L78 Accepts]: Start accepts. Automaton has 3950 states and 5834 transitions. Word has length 104 [2019-09-10 08:14:14,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:14,032 INFO L475 AbstractCegarLoop]: Abstraction has 3950 states and 5834 transitions. [2019-09-10 08:14:14,032 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 08:14:14,033 INFO L276 IsEmpty]: Start isEmpty. Operand 3950 states and 5834 transitions. [2019-09-10 08:14:14,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-09-10 08:14:14,034 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:14,034 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, 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 08:14:14,035 INFO L418 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:14,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:14,035 INFO L82 PathProgramCache]: Analyzing trace with hash 37876548, now seen corresponding path program 1 times [2019-09-10 08:14:14,035 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:14,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:14,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:14,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:14,037 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:14,279 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 08:14:14,279 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:14,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 08:14:14,280 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:14,280 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 08:14:14,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 08:14:14,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-09-10 08:14:14,281 INFO L87 Difference]: Start difference. First operand 3950 states and 5834 transitions. Second operand 10 states. [2019-09-10 08:14:15,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:15,114 INFO L93 Difference]: Finished difference Result 7774 states and 11432 transitions. [2019-09-10 08:14:15,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-10 08:14:15,114 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 105 [2019-09-10 08:14:15,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:15,134 INFO L225 Difference]: With dead ends: 7774 [2019-09-10 08:14:15,134 INFO L226 Difference]: Without dead ends: 7774 [2019-09-10 08:14:15,135 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2019-09-10 08:14:15,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7774 states. [2019-09-10 08:14:15,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7774 to 3950. [2019-09-10 08:14:15,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3950 states. [2019-09-10 08:14:15,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3950 states to 3950 states and 5821 transitions. [2019-09-10 08:14:15,275 INFO L78 Accepts]: Start accepts. Automaton has 3950 states and 5821 transitions. Word has length 105 [2019-09-10 08:14:15,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:15,275 INFO L475 AbstractCegarLoop]: Abstraction has 3950 states and 5821 transitions. [2019-09-10 08:14:15,276 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 08:14:15,276 INFO L276 IsEmpty]: Start isEmpty. Operand 3950 states and 5821 transitions. [2019-09-10 08:14:15,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-09-10 08:14:15,277 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:15,278 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, 1, 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 08:14:15,278 INFO L418 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:15,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:15,279 INFO L82 PathProgramCache]: Analyzing trace with hash -6182625, now seen corresponding path program 1 times [2019-09-10 08:14:15,279 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:15,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:15,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:15,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:15,282 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:15,550 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 08:14:15,550 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:15,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 08:14:15,551 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:15,551 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 08:14:15,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 08:14:15,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-09-10 08:14:15,552 INFO L87 Difference]: Start difference. First operand 3950 states and 5821 transitions. Second operand 10 states. [2019-09-10 08:14:16,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:16,679 INFO L93 Difference]: Finished difference Result 7849 states and 11537 transitions. [2019-09-10 08:14:16,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-10 08:14:16,679 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 106 [2019-09-10 08:14:16,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:16,696 INFO L225 Difference]: With dead ends: 7849 [2019-09-10 08:14:16,696 INFO L226 Difference]: Without dead ends: 7849 [2019-09-10 08:14:16,696 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2019-09-10 08:14:16,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7849 states. [2019-09-10 08:14:16,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7849 to 3950. [2019-09-10 08:14:16,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3950 states. [2019-09-10 08:14:16,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3950 states to 3950 states and 5812 transitions. [2019-09-10 08:14:16,780 INFO L78 Accepts]: Start accepts. Automaton has 3950 states and 5812 transitions. Word has length 106 [2019-09-10 08:14:16,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:16,781 INFO L475 AbstractCegarLoop]: Abstraction has 3950 states and 5812 transitions. [2019-09-10 08:14:16,781 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 08:14:16,781 INFO L276 IsEmpty]: Start isEmpty. Operand 3950 states and 5812 transitions. [2019-09-10 08:14:16,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-09-10 08:14:16,783 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:16,783 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, 1, 1, 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 08:14:16,784 INFO L418 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:16,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:16,784 INFO L82 PathProgramCache]: Analyzing trace with hash -361867127, now seen corresponding path program 1 times [2019-09-10 08:14:16,784 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:16,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:16,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:16,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:16,789 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:16,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:17,033 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 08:14:17,034 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:17,034 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 08:14:17,034 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:17,035 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 08:14:17,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 08:14:17,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-09-10 08:14:17,036 INFO L87 Difference]: Start difference. First operand 3950 states and 5812 transitions. Second operand 10 states. [2019-09-10 08:14:18,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:18,057 INFO L93 Difference]: Finished difference Result 7819 states and 11475 transitions. [2019-09-10 08:14:18,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-10 08:14:18,059 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 107 [2019-09-10 08:14:18,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:18,069 INFO L225 Difference]: With dead ends: 7819 [2019-09-10 08:14:18,070 INFO L226 Difference]: Without dead ends: 7819 [2019-09-10 08:14:18,070 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2019-09-10 08:14:18,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7819 states. [2019-09-10 08:14:18,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7819 to 3950. [2019-09-10 08:14:18,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3950 states. [2019-09-10 08:14:18,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3950 states to 3950 states and 5801 transitions. [2019-09-10 08:14:18,151 INFO L78 Accepts]: Start accepts. Automaton has 3950 states and 5801 transitions. Word has length 107 [2019-09-10 08:14:18,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:18,151 INFO L475 AbstractCegarLoop]: Abstraction has 3950 states and 5801 transitions. [2019-09-10 08:14:18,151 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 08:14:18,151 INFO L276 IsEmpty]: Start isEmpty. Operand 3950 states and 5801 transitions. [2019-09-10 08:14:18,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 08:14:18,153 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:18,153 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, 1, 1, 1, 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 08:14:18,154 INFO L418 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:18,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:18,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1928807370, now seen corresponding path program 1 times [2019-09-10 08:14:18,154 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:18,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:18,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:18,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:18,156 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:19,143 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-10 08:14:20,135 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 08:14:20,135 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:20,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-09-10 08:14:20,135 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:20,136 INFO L454 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-09-10 08:14:20,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-09-10 08:14:20,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2019-09-10 08:14:20,137 INFO L87 Difference]: Start difference. First operand 3950 states and 5801 transitions. Second operand 25 states. [2019-09-10 08:14:21,249 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 41 [2019-09-10 08:14:21,505 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2019-09-10 08:14:21,862 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 81 [2019-09-10 08:14:22,244 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 92 [2019-09-10 08:14:22,760 WARN L188 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 123 [2019-09-10 08:14:23,428 WARN L188 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 138 [2019-09-10 08:14:23,671 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2019-09-10 08:14:23,847 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2019-09-10 08:14:24,225 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2019-09-10 08:14:24,661 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2019-09-10 08:14:24,906 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2019-09-10 08:14:25,263 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2019-09-10 08:14:25,734 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 44 [2019-09-10 08:14:26,143 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 44 [2019-09-10 08:14:28,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:28,398 INFO L93 Difference]: Finished difference Result 12535 states and 18501 transitions. [2019-09-10 08:14:28,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-09-10 08:14:28,398 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 108 [2019-09-10 08:14:28,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:28,410 INFO L225 Difference]: With dead ends: 12535 [2019-09-10 08:14:28,410 INFO L226 Difference]: Without dead ends: 12535 [2019-09-10 08:14:28,411 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=495, Invalid=2055, Unknown=0, NotChecked=0, Total=2550 [2019-09-10 08:14:28,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12535 states. [2019-09-10 08:14:28,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12535 to 3965. [2019-09-10 08:14:28,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3965 states. [2019-09-10 08:14:28,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3965 states to 3965 states and 5814 transitions. [2019-09-10 08:14:28,513 INFO L78 Accepts]: Start accepts. Automaton has 3965 states and 5814 transitions. Word has length 108 [2019-09-10 08:14:28,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:28,514 INFO L475 AbstractCegarLoop]: Abstraction has 3965 states and 5814 transitions. [2019-09-10 08:14:28,514 INFO L476 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-09-10 08:14:28,514 INFO L276 IsEmpty]: Start isEmpty. Operand 3965 states and 5814 transitions. [2019-09-10 08:14:28,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 08:14:28,516 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:28,517 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, 1, 1, 1, 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 08:14:28,517 INFO L418 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:28,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:28,517 INFO L82 PathProgramCache]: Analyzing trace with hash -2012504660, now seen corresponding path program 1 times [2019-09-10 08:14:28,517 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:28,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:28,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:28,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:28,519 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:29,193 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2019-09-10 08:14:29,730 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2019-09-10 08:14:29,890 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 08:14:30,070 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-10 08:14:30,220 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2019-09-10 08:14:30,447 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-10 08:14:30,620 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2019-09-10 08:14:30,801 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2019-09-10 08:14:31,206 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2019-09-10 08:14:32,599 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 08:14:32,599 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:14:32,599 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2019-09-10 08:14:32,599 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:14:32,600 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-09-10 08:14:32,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-09-10 08:14:32,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=1167, Unknown=0, NotChecked=0, Total=1260 [2019-09-10 08:14:32,601 INFO L87 Difference]: Start difference. First operand 3965 states and 5814 transitions. Second operand 36 states. [2019-09-10 08:14:32,821 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 46 [2019-09-10 08:14:34,181 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 42 [2019-09-10 08:14:34,372 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 41 [2019-09-10 08:14:34,994 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2019-09-10 08:14:35,318 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2019-09-10 08:14:35,728 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 73 [2019-09-10 08:14:36,199 WARN L188 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 92 [2019-09-10 08:14:36,708 WARN L188 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 103 [2019-09-10 08:14:37,374 WARN L188 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 124 [2019-09-10 08:14:38,144 WARN L188 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 137 [2019-09-10 08:14:39,114 WARN L188 SmtUtils]: Spent 803.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 156 [2019-09-10 08:14:40,251 WARN L188 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 228 DAG size of output: 176 [2019-09-10 08:14:41,519 WARN L188 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 250 DAG size of output: 195 [2019-09-10 08:14:41,902 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 86 [2019-09-10 08:14:42,303 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 86 [2019-09-10 08:14:43,048 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 83 [2019-09-10 08:14:43,623 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 83 [2019-09-10 08:14:44,362 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 77 [2019-09-10 08:14:45,059 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 77 [2019-09-10 08:14:45,963 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 71 [2019-09-10 08:14:46,695 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 71 [2019-09-10 08:14:48,692 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2019-09-10 08:14:56,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:14:56,461 INFO L93 Difference]: Finished difference Result 16772 states and 24767 transitions. [2019-09-10 08:14:56,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2019-09-10 08:14:56,461 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 108 [2019-09-10 08:14:56,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:14:56,476 INFO L225 Difference]: With dead ends: 16772 [2019-09-10 08:14:56,476 INFO L226 Difference]: Without dead ends: 16772 [2019-09-10 08:14:56,478 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 819 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=961, Invalid=4441, Unknown=0, NotChecked=0, Total=5402 [2019-09-10 08:14:56,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16772 states. [2019-09-10 08:14:56,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16772 to 4050. [2019-09-10 08:14:56,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4050 states. [2019-09-10 08:14:56,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4050 states to 4050 states and 5927 transitions. [2019-09-10 08:14:56,613 INFO L78 Accepts]: Start accepts. Automaton has 4050 states and 5927 transitions. Word has length 108 [2019-09-10 08:14:56,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:14:56,613 INFO L475 AbstractCegarLoop]: Abstraction has 4050 states and 5927 transitions. [2019-09-10 08:14:56,613 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-09-10 08:14:56,613 INFO L276 IsEmpty]: Start isEmpty. Operand 4050 states and 5927 transitions. [2019-09-10 08:14:56,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 08:14:56,615 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:14:56,615 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, 1, 1, 1, 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 08:14:56,616 INFO L418 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:14:56,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:14:56,616 INFO L82 PathProgramCache]: Analyzing trace with hash -409687476, now seen corresponding path program 1 times [2019-09-10 08:14:56,616 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:14:56,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:56,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:14:56,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:14:56,618 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:14:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:14:59,943 WARN L188 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 08:15:00,141 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2019-09-10 08:15:00,306 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 08:15:02,698 WARN L188 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-10 08:15:03,504 WARN L188 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 08:15:05,712 WARN L188 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 08:15:05,918 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 08:15:07,500 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 08:15:07,500 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:15:07,500 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2019-09-10 08:15:07,500 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:15:07,500 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-09-10 08:15:07,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-09-10 08:15:07,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1170, Unknown=0, NotChecked=0, Total=1260 [2019-09-10 08:15:07,501 INFO L87 Difference]: Start difference. First operand 4050 states and 5927 transitions. Second operand 36 states. [2019-09-10 08:15:08,053 WARN L188 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 140 [2019-09-10 08:15:08,977 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2019-09-10 08:15:09,161 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-09-10 08:15:09,387 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 08:15:09,640 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 08:15:09,955 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 08:15:10,691 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 08:15:11,234 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 08:15:11,729 WARN L188 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 112 [2019-09-10 08:15:12,478 WARN L188 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 134 [2019-09-10 08:15:13,396 WARN L188 SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 151 [2019-09-10 08:15:15,806 WARN L188 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 190 DAG size of output: 168 [2019-09-10 08:15:18,404 WARN L188 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 212 DAG size of output: 190 [2019-09-10 08:15:45,832 WARN L188 SmtUtils]: Spent 27.15 s on a formula simplification. DAG size of input: 241 DAG size of output: 218 [2019-09-10 08:16:29,585 WARN L188 SmtUtils]: Spent 43.49 s on a formula simplification. DAG size of input: 267 DAG size of output: 243 [2019-09-10 08:17:13,985 WARN L188 SmtUtils]: Spent 44.11 s on a formula simplification. DAG size of input: 292 DAG size of output: 267 [2019-09-10 08:17:16,738 WARN L188 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 111 [2019-09-10 08:17:17,213 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 111 [2019-09-10 08:17:17,577 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2019-09-10 08:17:17,917 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2019-09-10 08:17:18,228 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2019-09-10 08:17:21,220 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2019-09-10 08:17:29,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:17:29,750 INFO L93 Difference]: Finished difference Result 14702 states and 21679 transitions. [2019-09-10 08:17:29,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-09-10 08:17:29,750 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 108 [2019-09-10 08:17:29,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:17:29,763 INFO L225 Difference]: With dead ends: 14702 [2019-09-10 08:17:29,763 INFO L226 Difference]: Without dead ends: 14702 [2019-09-10 08:17:29,764 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 137.2s TimeCoverageRelationStatistics Valid=738, Invalid=3552, Unknown=0, NotChecked=0, Total=4290 [2019-09-10 08:17:29,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14702 states. [2019-09-10 08:17:29,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14702 to 4069. [2019-09-10 08:17:29,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4069 states. [2019-09-10 08:17:29,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4069 states to 4069 states and 5951 transitions. [2019-09-10 08:17:29,864 INFO L78 Accepts]: Start accepts. Automaton has 4069 states and 5951 transitions. Word has length 108 [2019-09-10 08:17:29,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:17:29,865 INFO L475 AbstractCegarLoop]: Abstraction has 4069 states and 5951 transitions. [2019-09-10 08:17:29,865 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-09-10 08:17:29,865 INFO L276 IsEmpty]: Start isEmpty. Operand 4069 states and 5951 transitions. [2019-09-10 08:17:29,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 08:17:29,867 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:17:29,867 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, 1, 1, 1, 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 08:17:29,867 INFO L418 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:17:29,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:17:29,868 INFO L82 PathProgramCache]: Analyzing trace with hash -32217364, now seen corresponding path program 1 times [2019-09-10 08:17:29,868 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:17:29,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:17:29,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:17:29,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:17:29,869 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:17:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:17:30,880 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 08:17:30,881 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:17:30,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-09-10 08:17:30,881 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:17:30,882 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-10 08:17:30,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-10 08:17:30,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2019-09-10 08:17:30,882 INFO L87 Difference]: Start difference. First operand 4069 states and 5951 transitions. Second operand 19 states. [2019-09-10 08:17:31,491 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 39 [2019-09-10 08:17:31,711 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-09-10 08:17:32,151 WARN L188 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2019-09-10 08:17:32,616 WARN L188 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2019-09-10 08:17:32,799 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2019-09-10 08:17:33,140 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2019-09-10 08:17:33,456 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2019-09-10 08:17:33,620 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2019-09-10 08:17:33,858 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2019-09-10 08:17:34,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:17:34,854 INFO L93 Difference]: Finished difference Result 15545 states and 22934 transitions. [2019-09-10 08:17:34,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-09-10 08:17:34,855 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 108 [2019-09-10 08:17:34,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:17:34,869 INFO L225 Difference]: With dead ends: 15545 [2019-09-10 08:17:34,870 INFO L226 Difference]: Without dead ends: 15545 [2019-09-10 08:17:34,870 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=280, Invalid=1052, Unknown=0, NotChecked=0, Total=1332 [2019-09-10 08:17:34,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15545 states. [2019-09-10 08:17:34,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15545 to 4079. [2019-09-10 08:17:34,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4079 states. [2019-09-10 08:17:34,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4079 states to 4079 states and 5953 transitions. [2019-09-10 08:17:34,963 INFO L78 Accepts]: Start accepts. Automaton has 4079 states and 5953 transitions. Word has length 108 [2019-09-10 08:17:34,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:17:34,964 INFO L475 AbstractCegarLoop]: Abstraction has 4079 states and 5953 transitions. [2019-09-10 08:17:34,964 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-10 08:17:34,964 INFO L276 IsEmpty]: Start isEmpty. Operand 4079 states and 5953 transitions. [2019-09-10 08:17:34,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 08:17:34,967 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:17:34,967 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, 1, 1, 1, 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 08:17:34,967 INFO L418 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:17:34,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:17:34,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1699265207, now seen corresponding path program 1 times [2019-09-10 08:17:34,968 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:17:34,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:17:34,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:17:34,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:17:34,969 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:17:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:17:36,126 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 08:17:36,127 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:17:36,127 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-09-10 08:17:36,127 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:17:36,127 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-10 08:17:36,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-10 08:17:36,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2019-09-10 08:17:36,128 INFO L87 Difference]: Start difference. First operand 4079 states and 5953 transitions. Second operand 19 states. [2019-09-10 08:17:36,736 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2019-09-10 08:17:36,932 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-10 08:17:37,403 WARN L188 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 08:17:37,756 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 99 [2019-09-10 08:17:37,959 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-09-10 08:17:38,109 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2019-09-10 08:17:38,373 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2019-09-10 08:17:38,665 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2019-09-10 08:17:38,843 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2019-09-10 08:17:39,087 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2019-09-10 08:17:40,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:17:40,041 INFO L93 Difference]: Finished difference Result 15478 states and 22832 transitions. [2019-09-10 08:17:40,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-09-10 08:17:40,041 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 108 [2019-09-10 08:17:40,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:17:40,057 INFO L225 Difference]: With dead ends: 15478 [2019-09-10 08:17:40,057 INFO L226 Difference]: Without dead ends: 15478 [2019-09-10 08:17:40,058 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=280, Invalid=1052, Unknown=0, NotChecked=0, Total=1332 [2019-09-10 08:17:40,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15478 states. [2019-09-10 08:17:40,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15478 to 4069. [2019-09-10 08:17:40,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4069 states. [2019-09-10 08:17:40,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4069 states to 4069 states and 5935 transitions. [2019-09-10 08:17:40,160 INFO L78 Accepts]: Start accepts. Automaton has 4069 states and 5935 transitions. Word has length 108 [2019-09-10 08:17:40,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:17:40,160 INFO L475 AbstractCegarLoop]: Abstraction has 4069 states and 5935 transitions. [2019-09-10 08:17:40,160 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-10 08:17:40,160 INFO L276 IsEmpty]: Start isEmpty. Operand 4069 states and 5935 transitions. [2019-09-10 08:17:40,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 08:17:40,162 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:17:40,162 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, 1, 1, 1, 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 08:17:40,162 INFO L418 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:17:40,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:17:40,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1049438965, now seen corresponding path program 1 times [2019-09-10 08:17:40,163 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:17:40,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:17:40,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:17:40,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:17:40,165 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:17:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:17:41,036 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 08:17:41,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:17:41,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-09-10 08:17:41,037 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:17:41,037 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-10 08:17:41,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-10 08:17:41,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2019-09-10 08:17:41,038 INFO L87 Difference]: Start difference. First operand 4069 states and 5935 transitions. Second operand 17 states. [2019-09-10 08:17:41,741 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-09-10 08:17:41,919 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2019-09-10 08:17:42,177 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 69 [2019-09-10 08:17:42,339 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-10 08:17:42,512 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-10 08:17:42,766 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2019-09-10 08:17:42,983 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-09-10 08:17:43,164 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-09-10 08:17:44,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:17:44,252 INFO L93 Difference]: Finished difference Result 13167 states and 19427 transitions. [2019-09-10 08:17:44,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-09-10 08:17:44,252 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 108 [2019-09-10 08:17:44,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:17:44,264 INFO L225 Difference]: With dead ends: 13167 [2019-09-10 08:17:44,264 INFO L226 Difference]: Without dead ends: 13167 [2019-09-10 08:17:44,265 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2019-09-10 08:17:44,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13167 states. [2019-09-10 08:17:44,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13167 to 4034. [2019-09-10 08:17:44,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4034 states. [2019-09-10 08:17:44,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4034 states to 4034 states and 5885 transitions. [2019-09-10 08:17:44,343 INFO L78 Accepts]: Start accepts. Automaton has 4034 states and 5885 transitions. Word has length 108 [2019-09-10 08:17:44,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:17:44,344 INFO L475 AbstractCegarLoop]: Abstraction has 4034 states and 5885 transitions. [2019-09-10 08:17:44,344 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-10 08:17:44,344 INFO L276 IsEmpty]: Start isEmpty. Operand 4034 states and 5885 transitions. [2019-09-10 08:17:44,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 08:17:44,346 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:17:44,346 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, 1, 1, 1, 1, 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 08:17:44,346 INFO L418 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:17:44,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:17:44,347 INFO L82 PathProgramCache]: Analyzing trace with hash 914669364, now seen corresponding path program 1 times [2019-09-10 08:17:44,347 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:17:44,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:17:44,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:17:44,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:17:44,348 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:17:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:17:45,286 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 08:17:45,287 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:17:45,287 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-09-10 08:17:45,287 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:17:45,287 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-10 08:17:45,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-10 08:17:45,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2019-09-10 08:17:45,288 INFO L87 Difference]: Start difference. First operand 4034 states and 5885 transitions. Second operand 19 states. [2019-09-10 08:17:45,886 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2019-09-10 08:17:46,099 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-10 08:17:46,416 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-10 08:17:46,753 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2019-09-10 08:17:46,940 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-10 08:17:47,336 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-09-10 08:17:47,642 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-10 08:17:48,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:17:48,435 INFO L93 Difference]: Finished difference Result 12369 states and 18220 transitions. [2019-09-10 08:17:48,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-09-10 08:17:48,436 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 109 [2019-09-10 08:17:48,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:17:48,447 INFO L225 Difference]: With dead ends: 12369 [2019-09-10 08:17:48,447 INFO L226 Difference]: Without dead ends: 12369 [2019-09-10 08:17:48,448 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=236, Invalid=954, Unknown=0, NotChecked=0, Total=1190 [2019-09-10 08:17:48,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12369 states. [2019-09-10 08:17:48,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12369 to 4009. [2019-09-10 08:17:48,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4009 states. [2019-09-10 08:17:48,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4009 states to 4009 states and 5854 transitions. [2019-09-10 08:17:48,519 INFO L78 Accepts]: Start accepts. Automaton has 4009 states and 5854 transitions. Word has length 109 [2019-09-10 08:17:48,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:17:48,520 INFO L475 AbstractCegarLoop]: Abstraction has 4009 states and 5854 transitions. [2019-09-10 08:17:48,520 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-10 08:17:48,520 INFO L276 IsEmpty]: Start isEmpty. Operand 4009 states and 5854 transitions. [2019-09-10 08:17:48,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 08:17:48,521 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:17:48,522 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, 1, 1, 1, 1, 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 08:17:48,522 INFO L418 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:17:48,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:17:48,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1552482483, now seen corresponding path program 1 times [2019-09-10 08:17:48,522 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:17:48,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:17:48,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:17:48,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:17:48,524 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:17:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:17:49,522 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 08:17:49,522 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:17:49,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-09-10 08:17:49,523 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:17:49,523 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-10 08:17:49,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-10 08:17:49,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2019-09-10 08:17:49,524 INFO L87 Difference]: Start difference. First operand 4009 states and 5854 transitions. Second operand 18 states. [2019-09-10 08:17:50,335 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2019-09-10 08:17:50,550 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-10 08:17:50,861 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 08:17:51,085 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-10 08:17:51,281 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-10 08:17:51,521 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-10 08:17:51,755 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-10 08:17:51,969 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-09-10 08:17:52,115 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-10 08:17:52,333 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-10 08:17:52,504 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2019-09-10 08:17:52,782 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2019-09-10 08:17:53,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:17:53,635 INFO L93 Difference]: Finished difference Result 27763 states and 41095 transitions. [2019-09-10 08:17:53,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-09-10 08:17:53,635 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 109 [2019-09-10 08:17:53,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:17:53,660 INFO L225 Difference]: With dead ends: 27763 [2019-09-10 08:17:53,660 INFO L226 Difference]: Without dead ends: 27763 [2019-09-10 08:17:53,661 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=298, Invalid=1108, Unknown=0, NotChecked=0, Total=1406 [2019-09-10 08:17:53,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27763 states. [2019-09-10 08:17:53,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27763 to 3953. [2019-09-10 08:17:53,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3953 states. [2019-09-10 08:17:53,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3953 states to 3953 states and 5778 transitions. [2019-09-10 08:17:53,862 INFO L78 Accepts]: Start accepts. Automaton has 3953 states and 5778 transitions. Word has length 109 [2019-09-10 08:17:53,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:17:53,863 INFO L475 AbstractCegarLoop]: Abstraction has 3953 states and 5778 transitions. [2019-09-10 08:17:53,863 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-10 08:17:53,863 INFO L276 IsEmpty]: Start isEmpty. Operand 3953 states and 5778 transitions. [2019-09-10 08:17:53,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 08:17:53,864 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:17:53,864 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, 1, 1, 1, 1, 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 08:17:53,864 INFO L418 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:17:53,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:17:53,865 INFO L82 PathProgramCache]: Analyzing trace with hash -528155211, now seen corresponding path program 1 times [2019-09-10 08:17:53,865 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:17:53,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:17:53,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:17:53,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:17:53,866 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:17:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:17:53,986 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 08:17:53,986 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:17:53,986 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 08:17:53,986 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:17:53,987 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 08:17:53,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 08:17:53,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 08:17:53,987 INFO L87 Difference]: Start difference. First operand 3953 states and 5778 transitions. Second operand 4 states. [2019-09-10 08:17:54,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:17:54,050 INFO L93 Difference]: Finished difference Result 5600 states and 8168 transitions. [2019-09-10 08:17:54,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 08:17:54,051 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 109 [2019-09-10 08:17:54,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:17:54,057 INFO L225 Difference]: With dead ends: 5600 [2019-09-10 08:17:54,057 INFO L226 Difference]: Without dead ends: 5600 [2019-09-10 08:17:54,058 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 08:17:54,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5600 states. [2019-09-10 08:17:54,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5600 to 5572. [2019-09-10 08:17:54,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5572 states. [2019-09-10 08:17:54,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5572 states to 5572 states and 8141 transitions. [2019-09-10 08:17:54,128 INFO L78 Accepts]: Start accepts. Automaton has 5572 states and 8141 transitions. Word has length 109 [2019-09-10 08:17:54,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:17:54,129 INFO L475 AbstractCegarLoop]: Abstraction has 5572 states and 8141 transitions. [2019-09-10 08:17:54,129 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 08:17:54,129 INFO L276 IsEmpty]: Start isEmpty. Operand 5572 states and 8141 transitions. [2019-09-10 08:17:54,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 08:17:54,130 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:17:54,130 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, 1, 1, 1, 1, 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 08:17:54,131 INFO L418 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:17:54,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:17:54,131 INFO L82 PathProgramCache]: Analyzing trace with hash -2012181736, now seen corresponding path program 1 times [2019-09-10 08:17:54,131 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:17:54,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:17:54,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:17:54,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:17:54,135 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:17:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:17:55,128 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 08:17:55,128 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:17:55,128 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-09-10 08:17:55,128 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:17:55,129 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-10 08:17:55,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-10 08:17:55,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2019-09-10 08:17:55,129 INFO L87 Difference]: Start difference. First operand 5572 states and 8141 transitions. Second operand 19 states. [2019-09-10 08:17:55,967 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-10 08:17:56,310 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2019-09-10 08:17:56,664 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2019-09-10 08:17:56,853 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2019-09-10 08:17:56,997 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-10 08:17:57,236 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-09-10 08:17:57,484 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2019-09-10 08:17:57,713 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2019-09-10 08:17:57,941 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2019-09-10 08:17:59,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:17:59,094 INFO L93 Difference]: Finished difference Result 24393 states and 35890 transitions. [2019-09-10 08:17:59,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-09-10 08:17:59,095 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 109 [2019-09-10 08:17:59,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:17:59,115 INFO L225 Difference]: With dead ends: 24393 [2019-09-10 08:17:59,115 INFO L226 Difference]: Without dead ends: 24393 [2019-09-10 08:17:59,116 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=280, Invalid=1052, Unknown=0, NotChecked=0, Total=1332 [2019-09-10 08:17:59,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24393 states. [2019-09-10 08:17:59,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24393 to 5572. [2019-09-10 08:17:59,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5572 states. [2019-09-10 08:17:59,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5572 states to 5572 states and 8135 transitions. [2019-09-10 08:17:59,311 INFO L78 Accepts]: Start accepts. Automaton has 5572 states and 8135 transitions. Word has length 109 [2019-09-10 08:17:59,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:17:59,311 INFO L475 AbstractCegarLoop]: Abstraction has 5572 states and 8135 transitions. [2019-09-10 08:17:59,311 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-10 08:17:59,311 INFO L276 IsEmpty]: Start isEmpty. Operand 5572 states and 8135 transitions. [2019-09-10 08:17:59,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-09-10 08:17:59,313 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:17:59,313 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, 1, 1, 1, 1, 1, 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 08:17:59,313 INFO L418 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:17:59,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:17:59,313 INFO L82 PathProgramCache]: Analyzing trace with hash -584523345, now seen corresponding path program 1 times [2019-09-10 08:17:59,313 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:17:59,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:17:59,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:17:59,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:17:59,314 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:17:59,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:17:59,866 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 08:17:59,868 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:17:59,868 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-09-10 08:17:59,868 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:17:59,870 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-10 08:17:59,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-10 08:17:59,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2019-09-10 08:17:59,871 INFO L87 Difference]: Start difference. First operand 5572 states and 8135 transitions. Second operand 13 states. [2019-09-10 08:18:00,209 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2019-09-10 08:18:00,371 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-10 08:18:00,531 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-10 08:18:00,857 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2019-09-10 08:18:01,077 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2019-09-10 08:18:01,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:18:01,371 INFO L93 Difference]: Finished difference Result 12004 states and 17608 transitions. [2019-09-10 08:18:01,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 08:18:01,372 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 110 [2019-09-10 08:18:01,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:18:01,383 INFO L225 Difference]: With dead ends: 12004 [2019-09-10 08:18:01,383 INFO L226 Difference]: Without dead ends: 12004 [2019-09-10 08:18:01,383 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2019-09-10 08:18:01,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12004 states. [2019-09-10 08:18:01,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12004 to 5520. [2019-09-10 08:18:01,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5520 states. [2019-09-10 08:18:01,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5520 states to 5520 states and 8068 transitions. [2019-09-10 08:18:01,462 INFO L78 Accepts]: Start accepts. Automaton has 5520 states and 8068 transitions. Word has length 110 [2019-09-10 08:18:01,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:18:01,463 INFO L475 AbstractCegarLoop]: Abstraction has 5520 states and 8068 transitions. [2019-09-10 08:18:01,463 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-10 08:18:01,463 INFO L276 IsEmpty]: Start isEmpty. Operand 5520 states and 8068 transitions. [2019-09-10 08:18:01,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-09-10 08:18:01,464 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:18:01,464 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, 1, 1, 1, 1, 1, 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 08:18:01,464 INFO L418 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:18:01,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:18:01,465 INFO L82 PathProgramCache]: Analyzing trace with hash 639012882, now seen corresponding path program 1 times [2019-09-10 08:18:01,465 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:18:01,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:18:01,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:18:01,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:18:01,466 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:18:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:18:02,006 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 08:18:02,007 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:18:02,007 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-09-10 08:18:02,007 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:18:02,007 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-10 08:18:02,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-10 08:18:02,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-09-10 08:18:02,008 INFO L87 Difference]: Start difference. First operand 5520 states and 8068 transitions. Second operand 12 states. [2019-09-10 08:18:02,434 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2019-09-10 08:18:02,589 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2019-09-10 08:18:02,753 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2019-09-10 08:18:03,077 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2019-09-10 08:18:03,332 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2019-09-10 08:18:03,488 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2019-09-10 08:18:03,963 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-09-10 08:18:04,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:18:04,095 INFO L93 Difference]: Finished difference Result 26642 states and 39239 transitions. [2019-09-10 08:18:04,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-10 08:18:04,096 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 110 [2019-09-10 08:18:04,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:18:04,120 INFO L225 Difference]: With dead ends: 26642 [2019-09-10 08:18:04,120 INFO L226 Difference]: Without dead ends: 26642 [2019-09-10 08:18:04,120 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2019-09-10 08:18:04,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26642 states. [2019-09-10 08:18:04,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26642 to 5498. [2019-09-10 08:18:04,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5498 states. [2019-09-10 08:18:04,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5498 states to 5498 states and 8040 transitions. [2019-09-10 08:18:04,279 INFO L78 Accepts]: Start accepts. Automaton has 5498 states and 8040 transitions. Word has length 110 [2019-09-10 08:18:04,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:18:04,279 INFO L475 AbstractCegarLoop]: Abstraction has 5498 states and 8040 transitions. [2019-09-10 08:18:04,279 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-10 08:18:04,279 INFO L276 IsEmpty]: Start isEmpty. Operand 5498 states and 8040 transitions. [2019-09-10 08:18:04,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-09-10 08:18:04,280 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:18:04,280 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, 1, 1, 1, 1, 1, 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 08:18:04,281 INFO L418 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:18:04,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:18:04,281 INFO L82 PathProgramCache]: Analyzing trace with hash 2081170354, now seen corresponding path program 1 times [2019-09-10 08:18:04,281 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:18:04,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:18:04,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:18:04,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:18:04,282 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:18:04,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:18:04,748 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 08:18:04,748 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:18:04,748 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-09-10 08:18:04,748 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:18:04,748 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-10 08:18:04,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-10 08:18:04,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-09-10 08:18:04,749 INFO L87 Difference]: Start difference. First operand 5498 states and 8040 transitions. Second operand 12 states. [2019-09-10 08:18:05,251 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2019-09-10 08:18:05,405 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-10 08:18:05,572 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-10 08:18:05,891 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-10 08:18:06,136 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2019-09-10 08:18:06,284 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2019-09-10 08:18:06,725 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2019-09-10 08:18:06,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:18:06,864 INFO L93 Difference]: Finished difference Result 26641 states and 39237 transitions. [2019-09-10 08:18:06,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-10 08:18:06,865 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 110 [2019-09-10 08:18:06,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:18:06,888 INFO L225 Difference]: With dead ends: 26641 [2019-09-10 08:18:06,888 INFO L226 Difference]: Without dead ends: 26641 [2019-09-10 08:18:06,888 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2019-09-10 08:18:06,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26641 states. [2019-09-10 08:18:07,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26641 to 5472. [2019-09-10 08:18:07,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5472 states. [2019-09-10 08:18:07,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5472 states to 5472 states and 8008 transitions. [2019-09-10 08:18:07,030 INFO L78 Accepts]: Start accepts. Automaton has 5472 states and 8008 transitions. Word has length 110 [2019-09-10 08:18:07,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:18:07,030 INFO L475 AbstractCegarLoop]: Abstraction has 5472 states and 8008 transitions. [2019-09-10 08:18:07,030 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-10 08:18:07,030 INFO L276 IsEmpty]: Start isEmpty. Operand 5472 states and 8008 transitions. [2019-09-10 08:18:07,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-09-10 08:18:07,031 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:18:07,031 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, 1, 1, 1, 1, 1, 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 08:18:07,031 INFO L418 AbstractCegarLoop]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:18:07,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:18:07,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1243814062, now seen corresponding path program 1 times [2019-09-10 08:18:07,032 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:18:07,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:18:07,032 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:18:07,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:18:07,033 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:18:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:18:07,616 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2019-09-10 08:18:07,902 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 08:18:07,903 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:18:07,903 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-09-10 08:18:07,903 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:18:07,903 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-10 08:18:07,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-10 08:18:07,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2019-09-10 08:18:07,904 INFO L87 Difference]: Start difference. First operand 5472 states and 8008 transitions. Second operand 14 states. [2019-09-10 08:18:08,523 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-10 08:18:08,679 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-10 08:18:08,829 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2019-09-10 08:18:09,038 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2019-09-10 08:18:09,251 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2019-09-10 08:18:09,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:18:09,609 INFO L93 Difference]: Finished difference Result 21337 states and 31416 transitions. [2019-09-10 08:18:09,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-10 08:18:09,610 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 110 [2019-09-10 08:18:09,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:18:09,627 INFO L225 Difference]: With dead ends: 21337 [2019-09-10 08:18:09,627 INFO L226 Difference]: Without dead ends: 21337 [2019-09-10 08:18:09,628 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=165, Invalid=435, Unknown=0, NotChecked=0, Total=600 [2019-09-10 08:18:09,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21337 states. [2019-09-10 08:18:09,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21337 to 5423. [2019-09-10 08:18:09,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5423 states. [2019-09-10 08:18:09,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5423 states to 5423 states and 7949 transitions. [2019-09-10 08:18:09,747 INFO L78 Accepts]: Start accepts. Automaton has 5423 states and 7949 transitions. Word has length 110 [2019-09-10 08:18:09,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:18:09,747 INFO L475 AbstractCegarLoop]: Abstraction has 5423 states and 7949 transitions. [2019-09-10 08:18:09,747 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-10 08:18:09,747 INFO L276 IsEmpty]: Start isEmpty. Operand 5423 states and 7949 transitions. [2019-09-10 08:18:09,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-09-10 08:18:09,748 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:18:09,748 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, 1, 1, 1, 1, 1, 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 08:18:09,748 INFO L418 AbstractCegarLoop]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:18:09,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:18:09,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1636111030, now seen corresponding path program 1 times [2019-09-10 08:18:09,748 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:18:09,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:18:09,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:18:09,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:18:09,749 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:18:09,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:18:10,515 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2019-09-10 08:18:10,639 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-09-10 08:18:10,786 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2019-09-10 08:18:10,933 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2019-09-10 08:18:11,100 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2019-09-10 08:18:11,471 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 46 [2019-09-10 08:18:12,298 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-10 08:18:14,200 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 08:18:14,200 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:18:14,200 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2019-09-10 08:18:14,200 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:18:14,201 INFO L454 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-09-10 08:18:14,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-09-10 08:18:14,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1310, Unknown=0, NotChecked=0, Total=1406 [2019-09-10 08:18:14,202 INFO L87 Difference]: Start difference. First operand 5423 states and 7949 transitions. Second operand 38 states. [2019-09-10 08:18:14,569 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 55 [2019-09-10 08:18:15,545 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 35 [2019-09-10 08:18:15,770 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 37 [2019-09-10 08:18:16,039 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2019-09-10 08:18:16,371 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2019-09-10 08:18:16,711 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2019-09-10 08:18:17,079 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2019-09-10 08:18:17,902 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 51 [2019-09-10 08:18:18,244 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 58 [2019-09-10 08:18:18,585 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 64 [2019-09-10 08:18:18,940 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 73 [2019-09-10 08:18:19,374 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 85 [2019-09-10 08:18:19,852 WARN L188 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 94 [2019-09-10 08:18:20,387 WARN L188 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 105 [2019-09-10 08:18:20,932 WARN L188 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 113 [2019-09-10 08:18:21,751 WARN L188 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 134 [2019-09-10 08:18:22,567 WARN L188 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 150 [2019-09-10 08:18:23,784 WARN L188 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 210 DAG size of output: 160 [2019-09-10 08:18:24,234 WARN L188 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 80 [2019-09-10 08:18:24,688 WARN L188 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 80 [2019-09-10 08:18:25,194 WARN L188 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 77 [2019-09-10 08:18:25,709 WARN L188 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 85 [2019-09-10 08:18:26,180 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 81 [2019-09-10 08:18:26,535 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 48 [2019-09-10 08:18:26,958 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 75 [2019-09-10 08:18:27,382 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 78 [2019-09-10 08:18:27,830 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-10 08:18:29,490 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 33 [2019-09-10 08:18:30,461 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2019-09-10 08:18:31,147 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2019-09-10 08:18:32,556 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2019-09-10 08:18:33,369 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2019-09-10 08:18:33,684 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2019-09-10 08:18:34,105 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 55 [2019-09-10 08:18:34,581 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2019-09-10 08:18:35,014 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 58 [2019-09-10 08:18:37,512 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2019-09-10 08:18:38,023 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2019-09-10 08:18:38,459 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2019-09-10 08:18:51,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:18:51,313 INFO L93 Difference]: Finished difference Result 62798 states and 92793 transitions. [2019-09-10 08:18:51,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2019-09-10 08:18:51,313 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 110 [2019-09-10 08:18:51,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:18:51,365 INFO L225 Difference]: With dead ends: 62798 [2019-09-10 08:18:51,365 INFO L226 Difference]: Without dead ends: 62798 [2019-09-10 08:18:51,367 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1808 ImplicationChecksByTransitivity, 19.3s TimeCoverageRelationStatistics Valid=1305, Invalid=7067, Unknown=0, NotChecked=0, Total=8372 [2019-09-10 08:18:51,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62798 states. [2019-09-10 08:18:51,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62798 to 5440. [2019-09-10 08:18:51,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5440 states. [2019-09-10 08:18:51,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 7970 transitions. [2019-09-10 08:18:51,648 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 7970 transitions. Word has length 110 [2019-09-10 08:18:51,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:18:51,649 INFO L475 AbstractCegarLoop]: Abstraction has 5440 states and 7970 transitions. [2019-09-10 08:18:51,649 INFO L476 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-09-10 08:18:51,649 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 7970 transitions. [2019-09-10 08:18:51,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-09-10 08:18:51,650 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:18:51,650 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, 1, 1, 1, 1, 1, 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 08:18:51,650 INFO L418 AbstractCegarLoop]: === Iteration 38 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:18:51,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:18:51,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1085275794, now seen corresponding path program 1 times [2019-09-10 08:18:51,651 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:18:51,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:18:51,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:18:51,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:18:51,652 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:18:51,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:18:52,239 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 08:18:52,239 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:18:52,240 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-09-10 08:18:52,240 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:18:52,240 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-10 08:18:52,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-10 08:18:52,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2019-09-10 08:18:52,241 INFO L87 Difference]: Start difference. First operand 5440 states and 7970 transitions. Second operand 12 states. [2019-09-10 08:18:52,698 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2019-09-10 08:18:52,938 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-10 08:18:53,131 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2019-09-10 08:18:53,311 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2019-09-10 08:18:53,466 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2019-09-10 08:18:53,625 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-10 08:18:53,770 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-09-10 08:18:54,141 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2019-09-10 08:18:54,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:18:54,384 INFO L93 Difference]: Finished difference Result 21363 states and 31607 transitions. [2019-09-10 08:18:54,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-10 08:18:54,385 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 110 [2019-09-10 08:18:54,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:18:54,402 INFO L225 Difference]: With dead ends: 21363 [2019-09-10 08:18:54,402 INFO L226 Difference]: Without dead ends: 21363 [2019-09-10 08:18:54,403 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=173, Invalid=427, Unknown=0, NotChecked=0, Total=600 [2019-09-10 08:18:54,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21363 states. [2019-09-10 08:18:54,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21363 to 5289. [2019-09-10 08:18:54,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5289 states. [2019-09-10 08:18:54,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5289 states to 5289 states and 7758 transitions. [2019-09-10 08:18:54,511 INFO L78 Accepts]: Start accepts. Automaton has 5289 states and 7758 transitions. Word has length 110 [2019-09-10 08:18:54,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:18:54,511 INFO L475 AbstractCegarLoop]: Abstraction has 5289 states and 7758 transitions. [2019-09-10 08:18:54,511 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-10 08:18:54,511 INFO L276 IsEmpty]: Start isEmpty. Operand 5289 states and 7758 transitions. [2019-09-10 08:18:54,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-09-10 08:18:54,512 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:18:54,512 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, 1, 1, 1, 1, 1, 1, 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 08:18:54,512 INFO L418 AbstractCegarLoop]: === Iteration 39 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:18:54,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:18:54,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1800056775, now seen corresponding path program 1 times [2019-09-10 08:18:54,512 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:18:54,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:18:54,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:18:54,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:18:54,514 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:18:54,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:18:55,158 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 08:18:55,158 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:18:55,159 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-09-10 08:18:55,159 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:18:55,159 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-10 08:18:55,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-10 08:18:55,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-09-10 08:18:55,160 INFO L87 Difference]: Start difference. First operand 5289 states and 7758 transitions. Second operand 14 states. [2019-09-10 08:18:55,283 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2019-09-10 08:18:55,761 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 28 [2019-09-10 08:18:56,012 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2019-09-10 08:18:56,289 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2019-09-10 08:18:56,586 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2019-09-10 08:18:57,064 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2019-09-10 08:18:57,302 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-09-10 08:18:57,555 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-10 08:18:58,094 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2019-09-10 08:18:58,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:18:58,207 INFO L93 Difference]: Finished difference Result 25856 states and 38138 transitions. [2019-09-10 08:18:58,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-10 08:18:58,207 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 111 [2019-09-10 08:18:58,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:18:58,228 INFO L225 Difference]: With dead ends: 25856 [2019-09-10 08:18:58,229 INFO L226 Difference]: Without dead ends: 25856 [2019-09-10 08:18:58,229 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=189, Invalid=623, Unknown=0, NotChecked=0, Total=812 [2019-09-10 08:18:58,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25856 states. [2019-09-10 08:18:58,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25856 to 5271. [2019-09-10 08:18:58,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5271 states. [2019-09-10 08:18:58,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5271 states to 5271 states and 7735 transitions. [2019-09-10 08:18:58,368 INFO L78 Accepts]: Start accepts. Automaton has 5271 states and 7735 transitions. Word has length 111 [2019-09-10 08:18:58,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:18:58,368 INFO L475 AbstractCegarLoop]: Abstraction has 5271 states and 7735 transitions. [2019-09-10 08:18:58,368 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-10 08:18:58,368 INFO L276 IsEmpty]: Start isEmpty. Operand 5271 states and 7735 transitions. [2019-09-10 08:18:58,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-09-10 08:18:58,370 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:18:58,370 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:18:58,371 INFO L418 AbstractCegarLoop]: === Iteration 40 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:18:58,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:18:58,371 INFO L82 PathProgramCache]: Analyzing trace with hash 105892615, now seen corresponding path program 1 times [2019-09-10 08:18:58,371 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:18:58,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:18:58,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:18:58,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:18:58,372 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:18:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:18:58,441 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:18:58,441 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:18:58,442 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 08:18:58,442 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:18:58,442 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 08:18:58,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 08:18:58,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 08:18:58,443 INFO L87 Difference]: Start difference. First operand 5271 states and 7735 transitions. Second operand 3 states. [2019-09-10 08:18:58,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:18:58,480 INFO L93 Difference]: Finished difference Result 10089 states and 14686 transitions. [2019-09-10 08:18:58,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 08:18:58,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 141 [2019-09-10 08:18:58,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:18:58,491 INFO L225 Difference]: With dead ends: 10089 [2019-09-10 08:18:58,491 INFO L226 Difference]: Without dead ends: 10089 [2019-09-10 08:18:58,491 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 08:18:58,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10089 states. [2019-09-10 08:18:58,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10089 to 9767. [2019-09-10 08:18:58,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9767 states. [2019-09-10 08:18:58,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9767 states to 9767 states and 14285 transitions. [2019-09-10 08:18:58,582 INFO L78 Accepts]: Start accepts. Automaton has 9767 states and 14285 transitions. Word has length 141 [2019-09-10 08:18:58,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:18:58,582 INFO L475 AbstractCegarLoop]: Abstraction has 9767 states and 14285 transitions. [2019-09-10 08:18:58,582 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 08:18:58,582 INFO L276 IsEmpty]: Start isEmpty. Operand 9767 states and 14285 transitions. [2019-09-10 08:18:58,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-09-10 08:18:58,584 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:18:58,584 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:18:58,585 INFO L418 AbstractCegarLoop]: === Iteration 41 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:18:58,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:18:58,585 INFO L82 PathProgramCache]: Analyzing trace with hash -509787595, now seen corresponding path program 1 times [2019-09-10 08:18:58,585 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:18:58,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:18:58,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:18:58,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:18:58,586 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:18:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:18:58,648 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:18:58,648 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:18:58,648 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 08:18:58,648 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:18:58,649 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 08:18:58,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 08:18:58,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 08:18:58,649 INFO L87 Difference]: Start difference. First operand 9767 states and 14285 transitions. Second operand 3 states. [2019-09-10 08:18:58,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:18:58,696 INFO L93 Difference]: Finished difference Result 13525 states and 19687 transitions. [2019-09-10 08:18:58,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 08:18:58,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-09-10 08:18:58,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:18:58,711 INFO L225 Difference]: With dead ends: 13525 [2019-09-10 08:18:58,711 INFO L226 Difference]: Without dead ends: 13525 [2019-09-10 08:18:58,711 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 08:18:58,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13525 states. [2019-09-10 08:18:58,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13525 to 13083. [2019-09-10 08:18:58,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13083 states. [2019-09-10 08:18:58,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13083 states to 13083 states and 19081 transitions. [2019-09-10 08:18:58,878 INFO L78 Accepts]: Start accepts. Automaton has 13083 states and 19081 transitions. Word has length 142 [2019-09-10 08:18:58,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:18:58,879 INFO L475 AbstractCegarLoop]: Abstraction has 13083 states and 19081 transitions. [2019-09-10 08:18:58,879 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 08:18:58,879 INFO L276 IsEmpty]: Start isEmpty. Operand 13083 states and 19081 transitions. [2019-09-10 08:18:58,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-09-10 08:18:58,880 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:18:58,881 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:18:58,881 INFO L418 AbstractCegarLoop]: === Iteration 42 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:18:58,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:18:58,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1087314025, now seen corresponding path program 1 times [2019-09-10 08:18:58,881 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:18:58,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:18:58,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:18:58,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:18:58,883 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:18:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:18:58,980 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:18:58,980 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:18:58,981 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 08:18:58,981 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:18:58,981 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 08:18:58,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 08:18:58,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 08:18:58,982 INFO L87 Difference]: Start difference. First operand 13083 states and 19081 transitions. Second operand 7 states. [2019-09-10 08:18:59,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:18:59,689 INFO L93 Difference]: Finished difference Result 34255 states and 49595 transitions. [2019-09-10 08:18:59,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 08:18:59,690 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2019-09-10 08:18:59,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:18:59,718 INFO L225 Difference]: With dead ends: 34255 [2019-09-10 08:18:59,718 INFO L226 Difference]: Without dead ends: 34255 [2019-09-10 08:18:59,719 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2019-09-10 08:18:59,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34255 states. [2019-09-10 08:18:59,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34255 to 14073. [2019-09-10 08:18:59,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14073 states. [2019-09-10 08:18:59,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14073 states to 14073 states and 20456 transitions. [2019-09-10 08:18:59,907 INFO L78 Accepts]: Start accepts. Automaton has 14073 states and 20456 transitions. Word has length 142 [2019-09-10 08:18:59,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:18:59,907 INFO L475 AbstractCegarLoop]: Abstraction has 14073 states and 20456 transitions. [2019-09-10 08:18:59,907 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 08:18:59,908 INFO L276 IsEmpty]: Start isEmpty. Operand 14073 states and 20456 transitions. [2019-09-10 08:18:59,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-09-10 08:18:59,908 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:18:59,909 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:18:59,909 INFO L418 AbstractCegarLoop]: === Iteration 43 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:18:59,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:18:59,909 INFO L82 PathProgramCache]: Analyzing trace with hash -405334307, now seen corresponding path program 1 times [2019-09-10 08:18:59,909 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:18:59,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:18:59,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:18:59,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:18:59,910 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:18:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:19:00,040 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:19:00,040 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:19:00,041 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 08:19:00,041 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:19:00,041 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 08:19:00,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 08:19:00,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 08:19:00,042 INFO L87 Difference]: Start difference. First operand 14073 states and 20456 transitions. Second operand 7 states. [2019-09-10 08:19:00,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:19:00,662 INFO L93 Difference]: Finished difference Result 68319 states and 98333 transitions. [2019-09-10 08:19:00,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 08:19:00,662 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2019-09-10 08:19:00,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:19:00,724 INFO L225 Difference]: With dead ends: 68319 [2019-09-10 08:19:00,724 INFO L226 Difference]: Without dead ends: 68319 [2019-09-10 08:19:00,725 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 08:19:00,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68319 states. [2019-09-10 08:19:01,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68319 to 30137. [2019-09-10 08:19:01,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30137 states. [2019-09-10 08:19:01,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30137 states to 30137 states and 43750 transitions. [2019-09-10 08:19:01,842 INFO L78 Accepts]: Start accepts. Automaton has 30137 states and 43750 transitions. Word has length 142 [2019-09-10 08:19:01,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:19:01,842 INFO L475 AbstractCegarLoop]: Abstraction has 30137 states and 43750 transitions. [2019-09-10 08:19:01,842 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 08:19:01,843 INFO L276 IsEmpty]: Start isEmpty. Operand 30137 states and 43750 transitions. [2019-09-10 08:19:01,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-09-10 08:19:01,843 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:19:01,844 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:19:01,844 INFO L418 AbstractCegarLoop]: === Iteration 44 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:19:01,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:19:01,844 INFO L82 PathProgramCache]: Analyzing trace with hash -819767965, now seen corresponding path program 1 times [2019-09-10 08:19:01,844 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:19:01,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:01,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:19:01,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:01,845 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:19:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:19:01,943 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:19:01,943 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:19:01,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 08:19:01,943 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:19:01,944 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 08:19:01,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 08:19:01,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 08:19:01,944 INFO L87 Difference]: Start difference. First operand 30137 states and 43750 transitions. Second operand 7 states. [2019-09-10 08:19:02,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:19:02,920 INFO L93 Difference]: Finished difference Result 136463 states and 195613 transitions. [2019-09-10 08:19:02,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 08:19:02,921 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2019-09-10 08:19:02,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:19:03,134 INFO L225 Difference]: With dead ends: 136463 [2019-09-10 08:19:03,134 INFO L226 Difference]: Without dead ends: 136463 [2019-09-10 08:19:03,135 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 08:19:03,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136463 states. [2019-09-10 08:19:05,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136463 to 64425. [2019-09-10 08:19:05,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64425 states. [2019-09-10 08:19:05,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64425 states to 64425 states and 93362 transitions. [2019-09-10 08:19:05,371 INFO L78 Accepts]: Start accepts. Automaton has 64425 states and 93362 transitions. Word has length 142 [2019-09-10 08:19:05,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:19:05,371 INFO L475 AbstractCegarLoop]: Abstraction has 64425 states and 93362 transitions. [2019-09-10 08:19:05,372 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 08:19:05,372 INFO L276 IsEmpty]: Start isEmpty. Operand 64425 states and 93362 transitions. [2019-09-10 08:19:05,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-09-10 08:19:05,373 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:19:05,373 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:19:05,373 INFO L418 AbstractCegarLoop]: === Iteration 45 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:19:05,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:19:05,373 INFO L82 PathProgramCache]: Analyzing trace with hash -926650851, now seen corresponding path program 1 times [2019-09-10 08:19:05,373 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:19:05,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:05,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:19:05,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:05,375 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:19:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:19:05,476 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:19:05,477 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:19:05,477 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 08:19:05,477 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:19:05,477 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 08:19:05,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 08:19:05,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 08:19:05,478 INFO L87 Difference]: Start difference. First operand 64425 states and 93362 transitions. Second operand 7 states. [2019-09-10 08:19:08,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:19:08,377 INFO L93 Difference]: Finished difference Result 272751 states and 389309 transitions. [2019-09-10 08:19:08,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 08:19:08,378 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2019-09-10 08:19:08,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:19:08,646 INFO L225 Difference]: With dead ends: 272751 [2019-09-10 08:19:08,646 INFO L226 Difference]: Without dead ends: 272751 [2019-09-10 08:19:08,647 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2019-09-10 08:19:08,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272751 states. [2019-09-10 08:19:10,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272751 to 137321. [2019-09-10 08:19:10,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137321 states. [2019-09-10 08:19:10,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137321 states to 137321 states and 198634 transitions. [2019-09-10 08:19:10,477 INFO L78 Accepts]: Start accepts. Automaton has 137321 states and 198634 transitions. Word has length 142 [2019-09-10 08:19:10,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:19:10,477 INFO L475 AbstractCegarLoop]: Abstraction has 137321 states and 198634 transitions. [2019-09-10 08:19:10,477 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 08:19:10,477 INFO L276 IsEmpty]: Start isEmpty. Operand 137321 states and 198634 transitions. [2019-09-10 08:19:10,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-09-10 08:19:10,489 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:19:10,489 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:19:10,490 INFO L418 AbstractCegarLoop]: === Iteration 46 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:19:10,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:19:10,490 INFO L82 PathProgramCache]: Analyzing trace with hash 496520109, now seen corresponding path program 1 times [2019-09-10 08:19:10,490 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:19:10,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:10,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:19:10,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:10,491 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:19:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:19:10,565 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:19:10,565 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:19:10,565 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 08:19:10,565 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:19:10,566 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 08:19:10,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 08:19:10,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 08:19:10,566 INFO L87 Difference]: Start difference. First operand 137321 states and 198634 transitions. Second operand 3 states. [2019-09-10 08:19:11,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:19:11,444 INFO L93 Difference]: Finished difference Result 262379 states and 374619 transitions. [2019-09-10 08:19:11,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 08:19:11,444 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 173 [2019-09-10 08:19:11,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:19:11,744 INFO L225 Difference]: With dead ends: 262379 [2019-09-10 08:19:11,745 INFO L226 Difference]: Without dead ends: 262379 [2019-09-10 08:19:11,745 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 08:19:11,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262379 states. [2019-09-10 08:19:16,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262379 to 190345. [2019-09-10 08:19:16,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190345 states. [2019-09-10 08:19:16,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190345 states to 190345 states and 272802 transitions. [2019-09-10 08:19:16,832 INFO L78 Accepts]: Start accepts. Automaton has 190345 states and 272802 transitions. Word has length 173 [2019-09-10 08:19:16,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:19:16,832 INFO L475 AbstractCegarLoop]: Abstraction has 190345 states and 272802 transitions. [2019-09-10 08:19:16,832 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 08:19:16,832 INFO L276 IsEmpty]: Start isEmpty. Operand 190345 states and 272802 transitions. [2019-09-10 08:19:16,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-09-10 08:19:16,844 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:19:16,845 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:19:16,845 INFO L418 AbstractCegarLoop]: === Iteration 47 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:19:16,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:19:16,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1733503052, now seen corresponding path program 1 times [2019-09-10 08:19:16,845 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:19:16,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:16,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:19:16,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:16,847 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:19:16,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:19:16,921 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:19:16,922 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:19:16,922 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 08:19:16,922 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:19:16,922 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 08:19:16,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 08:19:16,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 08:19:16,923 INFO L87 Difference]: Start difference. First operand 190345 states and 272802 transitions. Second operand 3 states. [2019-09-10 08:19:17,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:19:17,261 INFO L93 Difference]: Finished difference Result 174795 states and 246883 transitions. [2019-09-10 08:19:17,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 08:19:17,262 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2019-09-10 08:19:17,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:19:17,442 INFO L225 Difference]: With dead ends: 174795 [2019-09-10 08:19:17,442 INFO L226 Difference]: Without dead ends: 174795 [2019-09-10 08:19:17,443 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 08:19:17,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174795 states. [2019-09-10 08:19:21,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174795 to 133081. [2019-09-10 08:19:21,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133081 states. [2019-09-10 08:19:22,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133081 states to 133081 states and 187800 transitions. [2019-09-10 08:19:22,074 INFO L78 Accepts]: Start accepts. Automaton has 133081 states and 187800 transitions. Word has length 174 [2019-09-10 08:19:22,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:19:22,075 INFO L475 AbstractCegarLoop]: Abstraction has 133081 states and 187800 transitions. [2019-09-10 08:19:22,075 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 08:19:22,075 INFO L276 IsEmpty]: Start isEmpty. Operand 133081 states and 187800 transitions. [2019-09-10 08:19:22,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-09-10 08:19:22,083 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:19:22,084 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:19:22,084 INFO L418 AbstractCegarLoop]: === Iteration 48 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:19:22,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:19:22,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1069762009, now seen corresponding path program 1 times [2019-09-10 08:19:22,084 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:19:22,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:22,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:19:22,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:22,085 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:19:22,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:19:22,153 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-09-10 08:19:22,153 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:19:22,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 08:19:22,153 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:19:22,154 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 08:19:22,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 08:19:22,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 08:19:22,154 INFO L87 Difference]: Start difference. First operand 133081 states and 187800 transitions. Second operand 3 states. [2019-09-10 08:19:22,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:19:22,480 INFO L93 Difference]: Finished difference Result 165075 states and 230251 transitions. [2019-09-10 08:19:22,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 08:19:22,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2019-09-10 08:19:22,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:19:22,647 INFO L225 Difference]: With dead ends: 165075 [2019-09-10 08:19:22,647 INFO L226 Difference]: Without dead ends: 165075 [2019-09-10 08:19:22,648 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 08:19:22,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165075 states. [2019-09-10 08:19:24,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165075 to 157297. [2019-09-10 08:19:24,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157297 states. [2019-09-10 08:19:25,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157297 states to 157297 states and 220962 transitions. [2019-09-10 08:19:25,400 INFO L78 Accepts]: Start accepts. Automaton has 157297 states and 220962 transitions. Word has length 175 [2019-09-10 08:19:25,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:19:25,401 INFO L475 AbstractCegarLoop]: Abstraction has 157297 states and 220962 transitions. [2019-09-10 08:19:25,401 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 08:19:25,401 INFO L276 IsEmpty]: Start isEmpty. Operand 157297 states and 220962 transitions. [2019-09-10 08:19:25,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-09-10 08:19:25,409 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:19:25,409 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:19:25,409 INFO L418 AbstractCegarLoop]: === Iteration 49 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:19:25,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:19:25,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1804548595, now seen corresponding path program 1 times [2019-09-10 08:19:25,410 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:19:25,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:25,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:19:25,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:25,411 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:19:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:19:25,480 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-10 08:19:25,480 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 08:19:25,481 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 08:19:25,481 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:19:25,481 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 08:19:25,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 08:19:25,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 08:19:25,482 INFO L87 Difference]: Start difference. First operand 157297 states and 220962 transitions. Second operand 3 states. [2019-09-10 08:19:25,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:19:25,826 INFO L93 Difference]: Finished difference Result 191525 states and 265745 transitions. [2019-09-10 08:19:25,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 08:19:25,827 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2019-09-10 08:19:25,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:19:26,021 INFO L225 Difference]: With dead ends: 191525 [2019-09-10 08:19:26,021 INFO L226 Difference]: Without dead ends: 191525 [2019-09-10 08:19:26,021 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 08:19:26,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191525 states. [2019-09-10 08:19:29,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191525 to 182871. [2019-09-10 08:19:29,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182871 states. [2019-09-10 08:19:29,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182871 states to 182871 states and 254929 transitions. [2019-09-10 08:19:29,327 INFO L78 Accepts]: Start accepts. Automaton has 182871 states and 254929 transitions. Word has length 176 [2019-09-10 08:19:29,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:19:29,328 INFO L475 AbstractCegarLoop]: Abstraction has 182871 states and 254929 transitions. [2019-09-10 08:19:29,328 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 08:19:29,328 INFO L276 IsEmpty]: Start isEmpty. Operand 182871 states and 254929 transitions. [2019-09-10 08:19:29,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-09-10 08:19:29,340 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:19:29,340 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 08:19:29,340 INFO L418 AbstractCegarLoop]: === Iteration 50 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:19:29,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:19:29,340 INFO L82 PathProgramCache]: Analyzing trace with hash -907484293, now seen corresponding path program 1 times [2019-09-10 08:19:29,340 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:19:29,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:29,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:19:29,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:19:29,341 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:19:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:19:29,732 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:19:29,732 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 08:19:29,732 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 08:19:29,733 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 178 with the following transitions: [2019-09-10 08:19:29,736 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [57], [60], [63], [66], [69], [72], [75], [78], [81], [84], [87], [90], [93], [96], [99], [102], [105], [108], [111], [114], [117], [120], [123], [127], [130], [133], [135], [139], [142], [145], [147], [151], [154], [157], [159], [163], [166], [169], [171], [175], [178], [181], [183], [187], [190], [193], [195], [198], [202], [205], [208], [212], [215], [219], [222], [225], [227], [230], [233], [236], [238], [241], [244], [247], [249], [252], [255], [258], [260], [263], [266], [269], [271], [274], [277], [280], [282], [284], [287], [290], [294], [296], [299], [300], [302], [305], [310], [318], [320], [323], [331], [333], [336], [344], [346], [349], [357], [359], [362], [370], [372], [375], [383], [393], [395], [398], [401], [403], [418], [420], [423], [426], [428], [443], [445], [448], [451], [453], [468], [470], [473], [476], [478], [493], [495], [498], [501], [503], [518], [520], [522], [525], [528], [530], [538], [543], [545], [548], [677], [678], [682], [683], [684] [2019-09-10 08:19:29,787 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 08:19:29,788 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 08:19:29,973 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 08:19:30,986 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 08:19:30,989 INFO L272 AbstractInterpreter]: Visited 162 different actions 1006 times. Merged at 60 different actions 728 times. Widened at 23 different actions 107 times. Performed 3581 root evaluator evaluations with a maximum evaluation depth of 8. Performed 3581 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Found 124 fixpoints after 22 different actions. Largest state had 176 variables. [2019-09-10 08:19:30,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:19:30,995 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 08:19:30,996 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 08:19:30,996 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) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 08:19:31,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:19:31,021 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 08:19:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:19:31,183 INFO L256 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 20 conjunts are in the unsatisfiable core [2019-09-10 08:19:31,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 08:19:31,459 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:31,653 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:32,996 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:19:32,997 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 08:19:33,287 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,288 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,288 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,289 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,289 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,292 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,294 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,294 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,294 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,295 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,295 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,296 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,296 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,298 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,299 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,300 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,300 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,301 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,301 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,302 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,302 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,303 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,303 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:33,304 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:36,466 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:19:36,716 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:19:36,720 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 08:19:36,721 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 29 [2019-09-10 08:19:36,721 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 08:19:36,722 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-10 08:19:36,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-10 08:19:36,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2019-09-10 08:19:36,722 INFO L87 Difference]: Start difference. First operand 182871 states and 254929 transitions. Second operand 20 states. [2019-09-10 08:19:36,888 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2019-09-10 08:19:38,661 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2019-09-10 08:19:39,175 WARN L188 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-09-10 08:19:39,909 WARN L188 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-10 08:19:40,123 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-09-10 08:19:40,386 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 08:19:40,740 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2019-09-10 08:19:41,113 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-10 08:19:41,282 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-10 08:19:41,451 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2019-09-10 08:19:41,603 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2019-09-10 08:19:41,851 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-10 08:19:42,136 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-10 08:19:42,331 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-10 08:19:42,562 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2019-09-10 08:19:42,968 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-10 08:19:43,227 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2019-09-10 08:19:43,509 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-10 08:19:43,699 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-10 08:19:43,908 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2019-09-10 08:19:44,116 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2019-09-10 08:19:44,281 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-09-10 08:19:44,685 WARN L188 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2019-09-10 08:19:44,939 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2019-09-10 08:19:45,115 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-10 08:19:45,304 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2019-09-10 08:19:45,462 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-09-10 08:19:46,107 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-10 08:19:46,331 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-10 08:19:46,627 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2019-09-10 08:19:47,521 WARN L188 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2019-09-10 08:19:47,790 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2019-09-10 08:19:48,054 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-10 08:19:48,263 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-10 08:19:48,468 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-10 08:19:48,817 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 83 [2019-09-10 08:19:49,186 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 08:19:49,515 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-10 08:19:50,012 WARN L188 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 73 [2019-09-10 08:19:50,256 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-10 08:19:50,518 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2019-09-10 08:19:51,053 WARN L188 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2019-09-10 08:19:51,320 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 08:19:51,633 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2019-09-10 08:19:51,936 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-10 08:19:52,165 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2019-09-10 08:19:52,551 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 08:19:52,913 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-10 08:19:53,185 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2019-09-10 08:19:53,563 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 08:19:53,929 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 83 [2019-09-10 08:19:54,309 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-10 08:19:54,598 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2019-09-10 08:19:54,904 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 08:19:55,128 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-10 08:19:55,506 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2019-09-10 08:19:55,876 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2019-09-10 08:19:56,088 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-10 08:19:57,137 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 08:19:57,582 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2019-09-10 08:19:58,154 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-10 08:19:58,424 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-10 08:19:58,693 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-10 08:19:58,893 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-09-10 08:19:59,563 WARN L188 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 08:20:00,009 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 08:20:00,303 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 08:20:00,513 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 08:20:00,783 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 08:20:00,997 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-10 08:20:01,537 WARN L188 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-09-10 08:20:02,057 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 08:20:02,435 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 08:20:02,707 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 75 [2019-09-10 08:20:02,975 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 08:20:04,204 WARN L188 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 92 DAG size of output: 75 [2019-09-10 08:20:04,507 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 08:20:04,801 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2019-09-10 08:20:05,038 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-10 08:20:05,462 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2019-09-10 08:20:05,647 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-10 08:20:05,969 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-10 08:20:06,242 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 75 [2019-09-10 08:20:06,509 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-10 08:20:07,446 WARN L188 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 75 [2019-09-10 08:20:07,770 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 80 [2019-09-10 08:20:08,120 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 08:20:09,065 WARN L188 SmtUtils]: Spent 847.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 80 [2019-09-10 08:20:09,505 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 08:20:09,897 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-10 08:20:10,231 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-10 08:20:10,450 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2019-09-10 08:20:10,661 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 08:20:10,881 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2019-09-10 08:20:11,105 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 08:20:11,382 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 70 [2019-09-10 08:20:11,728 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 08:20:12,096 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2019-09-10 08:20:12,411 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2019-09-10 08:20:12,638 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-10 08:20:12,901 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2019-09-10 08:20:13,133 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2019-09-10 08:20:13,485 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 65 [2019-09-10 08:20:13,822 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 08:20:14,050 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2019-09-10 08:20:14,381 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 08:20:14,707 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 80 [2019-09-10 08:20:15,019 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 08:20:15,349 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 80 [2019-09-10 08:20:15,645 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-10 08:20:15,962 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-10 08:20:16,199 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 08:20:16,427 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2019-09-10 08:20:17,312 WARN L188 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 08:20:17,541 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2019-09-10 08:20:18,067 WARN L188 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 86 [2019-09-10 08:20:18,504 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 86 [2019-09-10 08:20:18,807 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 75 [2019-09-10 08:20:19,262 WARN L188 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 08:20:19,566 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 75 [2019-09-10 08:20:19,858 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 08:20:20,163 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-10 08:20:20,470 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-10 08:20:20,756 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-09-10 08:20:21,030 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-09-10 08:20:21,282 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 08:20:21,556 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 70 [2019-09-10 08:20:21,978 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 76 [2019-09-10 08:20:22,245 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-10 08:20:22,500 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2019-09-10 08:20:22,975 WARN L188 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-10 08:20:23,264 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-10 08:20:23,501 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-10 08:20:23,715 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-10 08:20:23,946 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-10 08:20:24,455 WARN L188 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-09-10 08:20:24,710 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2019-09-10 08:20:25,003 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 71 [2019-09-10 08:20:25,377 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2019-09-10 08:20:25,851 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-09-10 08:20:26,211 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 83 [2019-09-10 08:20:26,692 WARN L188 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 83 [2019-09-10 08:20:27,656 WARN L188 SmtUtils]: Spent 898.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 08:20:27,946 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 75 [2019-09-10 08:20:30,226 WARN L188 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 08:20:30,517 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 75 [2019-09-10 08:20:30,768 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-10 08:20:33,534 WARN L188 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-10 08:20:33,893 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 83 [2019-09-10 08:20:34,270 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 83 [2019-09-10 08:20:34,618 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81 [2019-09-10 08:20:34,964 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81 [2019-09-10 08:20:35,240 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 75 [2019-09-10 08:20:35,571 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-10 08:20:35,844 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 75 [2019-09-10 08:20:38,465 WARN L188 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-10 08:20:38,715 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-10 08:20:38,973 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-10 08:20:39,270 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 73 [2019-09-10 08:20:39,560 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 73 [2019-09-10 08:20:39,821 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2019-09-10 08:20:40,093 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2019-09-10 08:20:40,425 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2019-09-10 08:20:41,313 WARN L188 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2019-09-10 08:20:41,577 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2019-09-10 08:20:41,852 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2019-09-10 08:20:42,123 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2019-09-10 08:20:42,415 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2019-09-10 08:20:42,642 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2019-09-10 08:20:42,973 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2019-09-10 08:20:43,312 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2019-09-10 08:20:43,551 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-10 08:20:44,522 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-10 08:20:45,036 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 80 [2019-09-10 08:20:45,453 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 86 [2019-09-10 08:20:47,884 WARN L188 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 99 DAG size of output: 80 [2019-09-10 08:20:48,309 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 86 [2019-09-10 08:20:48,724 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2019-09-10 08:20:49,133 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2019-09-10 08:20:49,531 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2019-09-10 08:20:49,796 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-09-10 08:20:50,110 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2019-09-10 08:20:50,370 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-09-10 08:20:50,607 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-10 08:20:50,956 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 70 [2019-09-10 08:20:51,280 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 76 [2019-09-10 08:20:51,538 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2019-09-10 08:20:51,778 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2019-09-10 08:20:52,022 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2019-09-10 08:20:52,256 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2019-09-10 08:20:52,666 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2019-09-10 08:20:52,845 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-09-10 08:20:53,280 WARN L188 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 65 [2019-09-10 08:20:53,648 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 71 [2019-09-10 08:20:53,864 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-09-10 08:20:54,166 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 08:20:54,496 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 08:20:54,794 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 08:20:55,000 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 08:20:55,596 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 75 [2019-09-10 08:20:56,060 WARN L188 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81 [2019-09-10 08:20:57,058 WARN L188 SmtUtils]: Spent 929.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 75 [2019-09-10 08:20:57,502 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81 [2019-09-10 08:20:58,152 WARN L188 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 08:20:58,384 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-10 08:20:58,692 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-10 08:20:58,959 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-10 08:20:59,193 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-10 08:20:59,403 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-10 08:20:59,689 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-10 08:20:59,937 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-10 08:21:00,328 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-09-10 08:21:00,820 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-09-10 08:21:01,251 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 08:21:01,516 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 08:21:02,319 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2019-09-10 08:21:02,569 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2019-09-10 08:21:16,456 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 08:21:17,287 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-10 08:21:17,586 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 75 [2019-09-10 08:21:18,039 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-10 08:21:18,334 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2019-09-10 08:21:18,752 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2019-09-10 08:21:19,134 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-10 08:21:19,525 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-10 08:21:20,091 WARN L188 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-10 08:21:20,347 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-10 08:21:20,831 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-10 08:21:21,126 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2019-09-10 08:21:21,662 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-10 08:21:21,943 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2019-09-10 08:21:22,361 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 75 [2019-09-10 08:21:22,622 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2019-09-10 08:21:23,037 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-10 08:21:23,313 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2019-09-10 08:21:23,579 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 68 [2019-09-10 08:21:23,868 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2019-09-10 08:21:24,205 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2019-09-10 08:21:24,484 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2019-09-10 08:21:24,750 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2019-09-10 08:21:24,990 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2019-09-10 08:21:27,542 WARN L188 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2019-09-10 08:21:27,811 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-10 08:21:28,094 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-10 08:21:28,353 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 08:21:28,590 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-10 08:21:28,791 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-10 08:21:29,081 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2019-09-10 08:21:29,362 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 68 [2019-09-10 08:21:29,675 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2019-09-10 08:21:30,013 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2019-09-10 08:21:30,312 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2019-09-10 08:21:30,912 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-09-10 08:21:31,183 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-10 08:21:31,447 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2019-09-10 08:21:31,715 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2019-09-10 08:21:32,047 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2019-09-10 08:21:32,342 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2019-09-10 08:21:32,679 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-09-10 08:21:32,954 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2019-09-10 08:21:33,195 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2019-09-10 08:21:33,477 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2019-09-10 08:21:33,762 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-10 08:21:34,078 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-10 08:21:34,268 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-10 08:21:34,530 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 08:21:34,792 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-10 08:21:35,042 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-10 08:21:35,269 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2019-09-10 08:21:35,606 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2019-09-10 08:21:35,985 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2019-09-10 08:21:36,237 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-09-10 08:21:36,538 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2019-09-10 08:21:36,859 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2019-09-10 08:21:37,103 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2019-09-10 08:21:37,362 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-10 08:21:37,660 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-10 08:21:38,038 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2019-09-10 08:21:38,382 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-10 08:21:38,614 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-10 08:21:38,874 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2019-09-10 08:21:39,129 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2019-09-10 08:21:39,416 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2019-09-10 08:21:39,655 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-10 08:21:39,883 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-10 08:21:40,167 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2019-09-10 08:21:40,384 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2019-09-10 08:21:40,642 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2019-09-10 08:21:41,019 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 87 [2019-09-10 08:21:41,301 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2019-09-10 08:21:41,566 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-09-10 08:21:41,794 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-10 08:21:42,002 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-10 08:21:42,317 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2019-09-10 08:21:42,661 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-10 08:21:42,912 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2019-09-10 08:21:43,128 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2019-09-10 08:21:43,355 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2019-09-10 08:21:43,705 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 84 [2019-09-10 08:21:44,102 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 84 [2019-09-10 08:21:44,441 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2019-09-10 08:21:44,943 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 90 [2019-09-10 08:21:45,311 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2019-09-10 08:21:45,514 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-10 08:21:45,730 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-10 08:21:46,018 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2019-09-10 08:21:46,345 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2019-09-10 08:21:46,615 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2019-09-10 08:21:46,890 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 08:21:47,254 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-10 08:21:49,630 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 87 [2019-09-10 08:21:50,161 WARN L188 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 08:21:50,449 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 08:21:50,804 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2019-09-10 08:21:51,136 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2019-09-10 08:21:51,503 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 81 [2019-09-10 08:21:51,817 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-10 08:21:52,177 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 82 [2019-09-10 08:21:52,537 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2019-09-10 08:21:52,885 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2019-09-10 08:21:53,271 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 86 [2019-09-10 08:21:53,678 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 75 [2019-09-10 08:21:54,023 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 75 [2019-09-10 08:21:54,384 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81 [2019-09-10 08:21:54,647 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-10 08:21:54,921 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2019-09-10 08:21:55,173 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2019-09-10 08:21:55,450 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2019-09-10 08:21:56,024 WARN L188 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 71 [2019-09-10 08:21:56,392 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2019-09-10 08:21:56,693 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 08:21:57,019 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-09-10 08:21:57,348 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2019-09-10 08:21:57,654 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 78 [2019-09-10 08:21:58,024 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-10 08:21:58,402 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 79 [2019-09-10 08:21:58,681 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2019-09-10 08:21:59,042 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 79 [2019-09-10 08:21:59,464 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 85 [2019-09-10 08:21:59,760 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-10 08:22:00,027 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2019-09-10 08:22:00,369 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 72 [2019-09-10 08:22:00,650 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 73 [2019-09-10 08:22:01,100 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2019-09-10 08:22:01,451 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 76 [2019-09-10 08:22:01,743 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2019-09-10 08:22:02,034 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2019-09-10 08:22:02,440 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 82 [2019-09-10 08:22:02,715 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 08:22:03,035 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 08:22:03,312 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2019-09-10 08:22:03,604 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2019-09-10 08:22:03,856 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 68 [2019-09-10 08:22:04,201 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 76 [2019-09-10 08:22:04,592 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 72 [2019-09-10 08:22:05,109 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81 [2019-09-10 08:22:05,484 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 70 [2019-09-10 08:22:05,880 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 70 [2019-09-10 08:22:06,312 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 76 [2019-09-10 08:22:06,596 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-10 08:22:06,937 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-10 08:22:07,298 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 73 [2019-09-10 08:22:07,911 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2019-09-10 08:22:08,571 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2019-09-10 08:22:09,003 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 86 [2019-09-10 08:22:09,630 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 72 [2019-09-10 08:22:10,050 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81 [2019-09-10 08:22:11,005 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 08:22:11,458 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-10 08:22:11,787 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 08:22:12,156 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 08:22:12,522 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 08:22:12,855 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 08:22:13,470 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-10 08:22:13,738 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-10 08:22:13,990 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-10 08:22:14,243 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2019-09-10 08:22:14,685 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 08:22:14,948 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 08:22:15,311 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 08:22:15,605 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 08:22:15,927 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 08:22:16,499 WARN L188 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 08:22:16,786 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 08:22:17,089 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 08:22:17,324 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-10 08:22:17,762 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 08:22:18,023 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2019-09-10 08:22:18,256 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-10 08:22:18,523 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-10 08:22:18,795 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2019-09-10 08:22:19,117 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2019-09-10 08:22:19,334 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2019-09-10 08:22:19,659 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 08:22:20,069 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2019-09-10 08:22:20,443 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-10 08:22:20,685 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 08:22:20,935 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2019-09-10 08:22:21,283 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 08:22:21,641 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 08:22:22,346 WARN L188 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 08:22:22,707 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 78 [2019-09-10 08:22:23,002 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 08:22:23,293 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 78 [2019-09-10 08:22:23,862 WARN L188 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 08:22:24,103 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2019-09-10 08:22:24,690 WARN L188 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 08:22:24,894 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-10 08:22:25,097 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2019-09-10 08:22:25,336 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2019-09-10 08:22:25,675 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 80 [2019-09-10 08:22:25,896 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-10 08:22:26,383 WARN L188 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 64 [2019-09-10 08:22:26,934 WARN L188 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2019-09-10 08:22:27,405 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 89 [2019-09-10 08:22:27,894 WARN L188 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2019-09-10 08:22:28,213 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 75 [2019-09-10 08:22:28,528 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2019-09-10 08:22:28,765 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2019-09-10 08:22:29,219 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 08:22:29,635 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 83 [2019-09-10 08:22:30,100 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2019-09-10 08:22:30,474 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 83 [2019-09-10 08:22:30,892 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-10 08:22:31,150 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2019-09-10 08:22:31,406 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 08:22:31,653 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2019-09-10 08:22:31,932 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2019-09-10 08:22:32,579 WARN L188 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 08:22:32,881 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 73 [2019-09-10 08:22:33,196 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2019-09-10 08:22:33,557 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 08:22:33,795 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2019-09-10 08:22:36,040 WARN L188 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 87 DAG size of output: 68 [2019-09-10 08:22:36,352 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2019-09-10 08:22:36,815 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 84 [2019-09-10 08:22:37,108 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2019-09-10 08:22:37,668 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 89 [2019-09-10 08:22:38,138 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2019-09-10 08:22:38,459 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2019-09-10 08:22:38,783 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2019-09-10 08:22:39,116 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 75 [2019-09-10 08:22:39,598 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 79 [2019-09-10 08:22:39,972 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 74 [2019-09-10 08:22:40,603 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 84 [2019-09-10 08:22:46,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:22:46,650 INFO L93 Difference]: Finished difference Result 2491549 states and 3393440 transitions. [2019-09-10 08:22:46,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 451 states. [2019-09-10 08:22:46,651 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 177 [2019-09-10 08:22:46,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:23:02,417 INFO L225 Difference]: With dead ends: 2491549 [2019-09-10 08:23:02,417 INFO L226 Difference]: Without dead ends: 2491549 [2019-09-10 08:23:02,430 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 814 GetRequests, 275 SyntacticMatches, 63 SemanticMatches, 476 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100661 ImplicationChecksByTransitivity, 158.3s TimeCoverageRelationStatistics Valid=23781, Invalid=204225, Unknown=0, NotChecked=0, Total=228006 [2019-09-10 08:23:05,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491549 states. [2019-09-10 08:23:48,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491549 to 710071. [2019-09-10 08:23:48,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 710071 states. [2019-09-10 08:23:51,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710071 states to 710071 states and 980919 transitions. [2019-09-10 08:23:51,260 INFO L78 Accepts]: Start accepts. Automaton has 710071 states and 980919 transitions. Word has length 177 [2019-09-10 08:23:51,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:23:51,260 INFO L475 AbstractCegarLoop]: Abstraction has 710071 states and 980919 transitions. [2019-09-10 08:23:51,260 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-10 08:23:51,260 INFO L276 IsEmpty]: Start isEmpty. Operand 710071 states and 980919 transitions. [2019-09-10 08:23:51,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-09-10 08:23:51,289 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:23:51,289 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:23:51,290 INFO L418 AbstractCegarLoop]: === Iteration 51 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:23:51,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:23:51,290 INFO L82 PathProgramCache]: Analyzing trace with hash -742133607, now seen corresponding path program 1 times [2019-09-10 08:23:51,290 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:23:51,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:23:51,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:23:51,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:23:51,292 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:23:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:23:51,781 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:23:51,781 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 08:23:51,781 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 08:23:51,782 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 178 with the following transitions: [2019-09-10 08:23:51,784 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [57], [60], [63], [66], [69], [72], [75], [78], [81], [84], [87], [90], [93], [96], [99], [102], [105], [108], [111], [114], [117], [120], [123], [127], [130], [133], [135], [139], [142], [145], [147], [151], [154], [157], [159], [163], [166], [169], [171], [175], [178], [181], [183], [187], [190], [193], [195], [198], [202], [205], [208], [212], [215], [219], [222], [225], [227], [230], [233], [236], [238], [241], [244], [247], [249], [252], [255], [258], [260], [263], [266], [269], [271], [274], [277], [280], [282], [284], [287], [294], [296], [299], [300], [302], [320], [323], [326], [331], [333], [336], [344], [346], [349], [352], [357], [359], [362], [370], [372], [375], [383], [393], [395], [398], [401], [403], [418], [420], [423], [426], [428], [436], [439], [445], [448], [451], [453], [468], [470], [473], [476], [478], [486], [489], [495], [498], [501], [503], [522], [525], [528], [530], [545], [548], [552], [677], [678], [682], [683], [684] [2019-09-10 08:23:51,798 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 08:23:51,799 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 08:23:51,839 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 08:23:52,459 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 08:23:52,459 INFO L272 AbstractInterpreter]: Visited 159 different actions 846 times. Merged at 58 different actions 604 times. Widened at 18 different actions 98 times. Performed 3021 root evaluator evaluations with a maximum evaluation depth of 6. Performed 3021 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 68 fixpoints after 16 different actions. Largest state had 176 variables. [2019-09-10 08:23:52,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:23:52,460 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 08:23:52,460 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 08:23:52,460 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) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 08:23:52,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:23:52,480 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 08:23:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:23:52,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 1109 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-10 08:23:52,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 08:23:52,703 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:23:52,704 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 08:23:52,765 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (3)] Exception during sending of exit command (exit): Broken pipe [2019-09-10 08:23:52,779 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-09-10 08:23:52,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [12] total 14 [2019-09-10 08:23:52,779 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 08:23:52,780 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 08:23:52,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 08:23:52,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2019-09-10 08:23:52,781 INFO L87 Difference]: Start difference. First operand 710071 states and 980919 transitions. Second operand 3 states. [2019-09-10 08:24:02,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 08:24:02,482 INFO L93 Difference]: Finished difference Result 545965 states and 744882 transitions. [2019-09-10 08:24:02,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 08:24:02,483 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2019-09-10 08:24:02,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 08:24:03,119 INFO L225 Difference]: With dead ends: 545965 [2019-09-10 08:24:03,120 INFO L226 Difference]: Without dead ends: 545965 [2019-09-10 08:24:03,120 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2019-09-10 08:24:03,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545965 states. [2019-09-10 08:24:08,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545965 to 538466. [2019-09-10 08:24:08,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538466 states. [2019-09-10 08:24:19,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538466 states to 538466 states and 735389 transitions. [2019-09-10 08:24:19,346 INFO L78 Accepts]: Start accepts. Automaton has 538466 states and 735389 transitions. Word has length 177 [2019-09-10 08:24:19,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 08:24:19,346 INFO L475 AbstractCegarLoop]: Abstraction has 538466 states and 735389 transitions. [2019-09-10 08:24:19,346 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 08:24:19,346 INFO L276 IsEmpty]: Start isEmpty. Operand 538466 states and 735389 transitions. [2019-09-10 08:24:19,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-09-10 08:24:19,361 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 08:24:19,361 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:24:19,361 INFO L418 AbstractCegarLoop]: === Iteration 52 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 08:24:19,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:24:19,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1258846731, now seen corresponding path program 1 times [2019-09-10 08:24:19,362 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 08:24:19,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:24:19,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:24:19,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 08:24:19,364 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 08:24:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:24:19,822 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:24:19,822 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 08:24:19,822 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 08:24:19,823 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 179 with the following transitions: [2019-09-10 08:24:19,823 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [57], [60], [63], [66], [69], [72], [75], [78], [81], [84], [87], [90], [93], [96], [99], [102], [105], [108], [111], [114], [117], [120], [123], [127], [130], [133], [135], [139], [142], [145], [147], [151], [154], [157], [159], [163], [166], [169], [171], [175], [178], [181], [183], [187], [190], [193], [195], [198], [202], [205], [208], [212], [215], [219], [222], [225], [227], [230], [233], [236], [238], [241], [244], [247], [249], [252], [255], [258], [260], [263], [266], [269], [271], [274], [277], [280], [282], [284], [287], [294], [296], [299], [300], [302], [305], [310], [318], [320], [323], [326], [331], [333], [336], [344], [346], [349], [352], [357], [359], [362], [370], [372], [375], [383], [393], [395], [398], [401], [403], [418], [420], [423], [426], [428], [436], [439], [445], [448], [451], [453], [468], [470], [473], [476], [478], [486], [489], [495], [498], [501], [503], [518], [520], [522], [525], [528], [530], [545], [548], [552], [677], [678], [682], [683], [684] [2019-09-10 08:24:19,829 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 08:24:19,829 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 08:24:19,883 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 08:24:20,741 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 08:24:20,742 INFO L272 AbstractInterpreter]: Visited 164 different actions 1088 times. Merged at 63 different actions 808 times. Widened at 23 different actions 146 times. Performed 3730 root evaluator evaluations with a maximum evaluation depth of 6. Performed 3730 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 99 fixpoints after 21 different actions. Largest state had 176 variables. [2019-09-10 08:24:20,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 08:24:20,743 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 08:24:20,743 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 08:24:20,743 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 08:24:20,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 08:24:20,774 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 08:24:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 08:24:20,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-10 08:24:20,930 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 08:24:21,184 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,297 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,556 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:24:21,556 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 08:24:21,812 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,812 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,812 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,813 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,813 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,816 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,816 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,817 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,817 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,818 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,818 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,819 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,820 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,820 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,821 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,821 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,821 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,822 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,823 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,823 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,824 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,824 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:21,825 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:24,627 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 08:24:24,820 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 08:24:24,824 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 08:24:24,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 31 [2019-09-10 08:24:24,824 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 08:24:24,825 INFO L454 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-09-10 08:24:24,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-09-10 08:24:24,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2019-09-10 08:24:24,826 INFO L87 Difference]: Start difference. First operand 538466 states and 735389 transitions. Second operand 21 states. [2019-09-10 08:24:25,040 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 08:24:25,593 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-10 08:24:26,566 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-10 08:24:26,796 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-10 08:24:27,159 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 08:24:27,398 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 08:24:27,848 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 08:24:28,259 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 08:24:31,113 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 08:24:31,566 WARN L188 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 08:24:32,025 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 08:24:32,319 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 08:24:32,555 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 08:24:32,825 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 08:24:33,462 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 08:24:33,723 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 08:24:34,290 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:24:34,720 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 08:24:35,036 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 08:24:35,525 WARN L188 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 08:24:35,911 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 08:24:36,461 WARN L188 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 08:24:36,760 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 08:24:37,117 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 08:24:37,449 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 08:24:37,920 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 08:24:38,253 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 08:24:38,701 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 08:24:39,070 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 08:24:39,387 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 08:24:40,465 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 08:24:40,796 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 08:24:41,066 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 08:24:41,630 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 08:24:42,018 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-09-10 08:24:42,661 WARN L188 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 08:24:42,998 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 08:24:43,513 WARN L188 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 08:24:43,916 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 08:24:44,372 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2019-09-10 08:24:44,756 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2019-09-10 08:24:45,147 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 08:24:45,490 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 08:24:45,863 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 08:24:46,239 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 08:24:46,697 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 08:24:47,151 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 08:24:47,494 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 08:24:47,874 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 08:24:48,292 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2019-09-10 08:24:48,603 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 08:24:48,981 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2019-09-10 08:24:49,605 WARN L188 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 08:24:50,188 WARN L188 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 08:24:50,492 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 08:24:50,995 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 08:24:51,599 WARN L188 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 08:24:51,991 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 08:24:52,562 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 08:24:52,875 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 08:24:53,285 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 08:24:54,090 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:24:54,468 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:24:54,819 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 08:24:55,278 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 08:24:55,764 WARN L188 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 08:24:56,207 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 08:24:56,650 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 08:24:56,987 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 08:24:57,482 WARN L188 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:24:58,041 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 08:24:58,623 WARN L188 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 08:24:58,992 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 08:24:59,460 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:24:59,885 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:25:00,348 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:25:00,762 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:25:01,082 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 08:25:01,468 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 08:25:01,938 WARN L188 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 08:25:02,616 WARN L188 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 08:25:03,030 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 08:25:03,554 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 08:25:03,912 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 08:25:04,366 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 08:25:04,930 WARN L188 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 08:25:05,245 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 08:25:05,611 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:25:06,310 WARN L188 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-09-10 08:25:06,773 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-09-10 08:25:07,279 WARN L188 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 08:25:07,701 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 08:25:08,075 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-10 08:25:08,404 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 08:25:09,740 WARN L188 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 08:25:10,098 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2019-09-10 08:25:10,491 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2019-09-10 08:25:10,886 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2019-09-10 08:25:11,381 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2019-09-10 08:25:11,930 WARN L188 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2019-09-10 08:25:12,383 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2019-09-10 08:25:12,743 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 08:25:13,076 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-09-10 08:25:13,441 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 08:25:13,802 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 08:25:14,246 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2019-09-10 08:25:14,605 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2019-09-10 08:25:15,031 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2019-09-10 08:25:15,447 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 08:25:15,796 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 08:25:16,100 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 08:25:16,540 WARN L188 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-09-10 08:25:16,907 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 08:25:17,350 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2019-09-10 08:25:17,844 WARN L188 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 08:25:18,254 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 08:25:18,660 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2019-09-10 08:25:19,096 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-09-10 08:25:19,479 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 08:25:19,872 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 08:25:20,224 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-10 08:25:20,603 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-10 08:25:20,950 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 08:25:21,599 WARN L188 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-10 08:25:21,983 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 08:25:22,385 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2019-09-10 08:25:22,825 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-09-10 08:25:23,429 WARN L188 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 08:25:24,079 WARN L188 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2019-09-10 08:25:24,484 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-10 08:25:24,968 WARN L188 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2019-09-10 08:25:25,349 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 08:25:25,801 WARN L188 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2019-09-10 08:25:26,149 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 08:25:28,451 WARN L188 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 08:25:28,805 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-10 08:25:29,168 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 08:25:29,550 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 08:25:30,011 WARN L188 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-10 08:25:30,455 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 08:25:31,015 WARN L188 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-10 08:25:31,389 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 08:25:31,765 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-10 08:25:34,205 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 08:25:34,867 WARN L188 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 08:25:35,317 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 08:25:35,709 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-10 08:25:36,111 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 08:25:36,617 WARN L188 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 08:25:36,942 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 08:25:37,419 WARN L188 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 08:25:37,783 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2019-09-10 08:25:38,210 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-09-10 08:25:38,762 WARN L188 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 08:25:39,089 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 08:25:39,477 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 08:25:41,850 WARN L188 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 08:25:47,725 WARN L188 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 08:25:48,659 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 08:25:49,062 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-09-10 08:25:49,400 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 08:25:49,913 WARN L188 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 08:25:50,435 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 08:25:50,786 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 08:25:51,145 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 08:25:51,759 WARN L188 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 08:25:52,104 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 08:25:52,652 WARN L188 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-10 08:25:53,119 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 08:25:53,934 WARN L188 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 08:26:03,563 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 08:26:03,932 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 08:26:04,490 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 08:26:05,023 WARN L188 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-09-10 08:26:05,427 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 08:26:05,767 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 08:26:06,177 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 08:26:06,489 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 08:26:06,847 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86