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-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 06:36:15,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 06:36:15,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 06:36:15,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 06:36:15,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 06:36:15,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 06:36:15,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 06:36:15,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 06:36:15,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 06:36:15,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 06:36:15,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 06:36:15,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 06:36:15,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 06:36:15,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 06:36:15,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 06:36:15,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 06:36:15,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 06:36:15,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 06:36:15,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 06:36:15,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 06:36:15,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 06:36:15,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 06:36:15,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 06:36:15,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 06:36:15,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 06:36:15,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 06:36:15,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 06:36:15,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 06:36:15,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 06:36:15,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 06:36:15,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 06:36:15,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 06:36:15,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 06:36:15,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 06:36:15,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 06:36:15,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 06:36:15,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 06:36:15,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 06:36:15,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 06:36:15,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 06:36:15,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 06:36:15,621 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 06:36:15,637 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 06:36:15,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 06:36:15,638 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 06:36:15,638 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 06:36:15,639 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 06:36:15,639 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 06:36:15,639 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 06:36:15,639 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 06:36:15,639 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 06:36:15,640 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 06:36:15,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 06:36:15,640 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 06:36:15,641 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 06:36:15,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 06:36:15,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 06:36:15,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 06:36:15,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 06:36:15,642 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 06:36:15,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 06:36:15,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 06:36:15,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 06:36:15,643 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 06:36:15,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 06:36:15,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 06:36:15,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 06:36:15,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 06:36:15,643 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 06:36:15,644 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 06:36:15,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 06:36:15,644 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 06:36:15,672 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 06:36:15,689 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 06:36:15,692 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 06:36:15,694 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 06:36:15,694 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 06:36:15,695 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2019-09-10 06:36:15,771 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/debf3d5e1/600d9d1ea54240b8a0abe6d916b24a7d/FLAG261d38994 [2019-09-10 06:36:16,341 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 06:36:16,342 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2019-09-10 06:36:16,359 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/debf3d5e1/600d9d1ea54240b8a0abe6d916b24a7d/FLAG261d38994 [2019-09-10 06:36:16,593 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/debf3d5e1/600d9d1ea54240b8a0abe6d916b24a7d [2019-09-10 06:36:16,605 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 06:36:16,606 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 06:36:16,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 06:36:16,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 06:36:16,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 06:36:16,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 06:36:16" (1/1) ... [2019-09-10 06:36:16,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b9af6bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:36:16, skipping insertion in model container [2019-09-10 06:36:16,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 06:36:16" (1/1) ... [2019-09-10 06:36:16,627 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 06:36:16,666 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 06:36:16,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 06:36:16,935 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 06:36:17,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 06:36:17,122 INFO L192 MainTranslator]: Completed translation [2019-09-10 06:36:17,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:36:17 WrapperNode [2019-09-10 06:36:17,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 06:36:17,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 06:36:17,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 06:36:17,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 06:36:17,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:36:17" (1/1) ... [2019-09-10 06:36:17,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:36:17" (1/1) ... [2019-09-10 06:36:17,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:36:17" (1/1) ... [2019-09-10 06:36:17,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:36:17" (1/1) ... [2019-09-10 06:36:17,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:36:17" (1/1) ... [2019-09-10 06:36:17,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:36:17" (1/1) ... [2019-09-10 06:36:17,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:36:17" (1/1) ... [2019-09-10 06:36:17,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 06:36:17,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 06:36:17,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 06:36:17,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 06:36:17,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:36:17" (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 06:36:17,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 06:36:17,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 06:36:17,235 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 06:36:17,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 06:36:17,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-10 06:36:17,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-10 06:36:17,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-09-10 06:36:17,236 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-10 06:36:17,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 06:36:17,236 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-10 06:36:17,237 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-10 06:36:17,237 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-10 06:36:17,237 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-10 06:36:17,237 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-10 06:36:17,237 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-10 06:36:17,238 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-10 06:36:17,238 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 06:36:17,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 06:36:17,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 06:36:17,837 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 06:36:17,838 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 06:36:17,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 06:36:17 BoogieIcfgContainer [2019-09-10 06:36:17,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 06:36:17,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 06:36:17,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 06:36:17,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 06:36:17,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 06:36:16" (1/3) ... [2019-09-10 06:36:17,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39355d58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 06:36:17, skipping insertion in model container [2019-09-10 06:36:17,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:36:17" (2/3) ... [2019-09-10 06:36:17,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39355d58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 06:36:17, skipping insertion in model container [2019-09-10 06:36:17,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 06:36:17" (3/3) ... [2019-09-10 06:36:17,847 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2019-09-10 06:36:17,860 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 06:36:17,872 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 06:36:17,896 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 06:36:17,932 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 06:36:17,932 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 06:36:17,933 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 06:36:17,933 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 06:36:17,933 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 06:36:17,933 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 06:36:17,933 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 06:36:17,934 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 06:36:17,950 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2019-09-10 06:36:17,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-09-10 06:36:17,963 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:36:17,964 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] [2019-09-10 06:36:17,966 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:36:17,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:36:17,971 INFO L82 PathProgramCache]: Analyzing trace with hash 365919119, now seen corresponding path program 1 times [2019-09-10 06:36:17,973 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:36:18,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:18,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:36:18,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:18,025 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:36:18,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:36:18,323 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 06:36:18,326 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:36:18,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 06:36:18,326 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:36:18,333 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 06:36:18,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 06:36:18,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 06:36:18,350 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 3 states. [2019-09-10 06:36:18,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:36:18,424 INFO L93 Difference]: Finished difference Result 144 states and 223 transitions. [2019-09-10 06:36:18,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 06:36:18,426 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2019-09-10 06:36:18,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:36:18,439 INFO L225 Difference]: With dead ends: 144 [2019-09-10 06:36:18,440 INFO L226 Difference]: Without dead ends: 136 [2019-09-10 06:36:18,442 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 06:36:18,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-09-10 06:36:18,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 134. [2019-09-10 06:36:18,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-09-10 06:36:18,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 198 transitions. [2019-09-10 06:36:18,506 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 198 transitions. Word has length 42 [2019-09-10 06:36:18,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:36:18,506 INFO L475 AbstractCegarLoop]: Abstraction has 134 states and 198 transitions. [2019-09-10 06:36:18,507 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 06:36:18,507 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 198 transitions. [2019-09-10 06:36:18,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-09-10 06:36:18,509 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:36:18,509 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] [2019-09-10 06:36:18,509 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:36:18,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:36:18,510 INFO L82 PathProgramCache]: Analyzing trace with hash -79929744, now seen corresponding path program 1 times [2019-09-10 06:36:18,510 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:36:18,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:18,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:36:18,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:18,513 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:36:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:36:18,680 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 06:36:18,681 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:36:18,681 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 06:36:18,681 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:36:18,685 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 06:36:18,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 06:36:18,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 06:36:18,686 INFO L87 Difference]: Start difference. First operand 134 states and 198 transitions. Second operand 3 states. [2019-09-10 06:36:18,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:36:18,724 INFO L93 Difference]: Finished difference Result 212 states and 318 transitions. [2019-09-10 06:36:18,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 06:36:18,725 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-09-10 06:36:18,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:36:18,729 INFO L225 Difference]: With dead ends: 212 [2019-09-10 06:36:18,730 INFO L226 Difference]: Without dead ends: 212 [2019-09-10 06:36:18,731 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 06:36:18,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2019-09-10 06:36:18,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 210. [2019-09-10 06:36:18,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2019-09-10 06:36:18,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 317 transitions. [2019-09-10 06:36:18,763 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 317 transitions. Word has length 43 [2019-09-10 06:36:18,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:36:18,763 INFO L475 AbstractCegarLoop]: Abstraction has 210 states and 317 transitions. [2019-09-10 06:36:18,763 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 06:36:18,764 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 317 transitions. [2019-09-10 06:36:18,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-09-10 06:36:18,767 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:36:18,767 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] [2019-09-10 06:36:18,768 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:36:18,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:36:18,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1825970920, now seen corresponding path program 1 times [2019-09-10 06:36:18,768 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:36:18,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:18,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:36:18,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:18,771 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:36:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:36:18,886 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 06:36:18,886 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:36:18,887 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 06:36:18,887 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:36:18,887 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 06:36:18,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 06:36:18,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 06:36:18,888 INFO L87 Difference]: Start difference. First operand 210 states and 317 transitions. Second operand 5 states. [2019-09-10 06:36:19,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:36:19,019 INFO L93 Difference]: Finished difference Result 768 states and 1188 transitions. [2019-09-10 06:36:19,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 06:36:19,020 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2019-09-10 06:36:19,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:36:19,026 INFO L225 Difference]: With dead ends: 768 [2019-09-10 06:36:19,026 INFO L226 Difference]: Without dead ends: 768 [2019-09-10 06:36:19,027 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 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 06:36:19,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2019-09-10 06:36:19,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 394. [2019-09-10 06:36:19,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2019-09-10 06:36:19,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 601 transitions. [2019-09-10 06:36:19,057 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 601 transitions. Word has length 44 [2019-09-10 06:36:19,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:36:19,058 INFO L475 AbstractCegarLoop]: Abstraction has 394 states and 601 transitions. [2019-09-10 06:36:19,058 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 06:36:19,058 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 601 transitions. [2019-09-10 06:36:19,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-09-10 06:36:19,060 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:36:19,060 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] [2019-09-10 06:36:19,060 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:36:19,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:36:19,061 INFO L82 PathProgramCache]: Analyzing trace with hash -789056467, now seen corresponding path program 1 times [2019-09-10 06:36:19,061 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:36:19,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:19,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:36:19,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:19,063 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:36:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:36:19,224 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 06:36:19,225 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:36:19,225 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 06:36:19,225 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:36:19,225 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 06:36:19,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 06:36:19,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-10 06:36:19,226 INFO L87 Difference]: Start difference. First operand 394 states and 601 transitions. Second operand 5 states. [2019-09-10 06:36:19,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:36:19,300 INFO L93 Difference]: Finished difference Result 982 states and 1499 transitions. [2019-09-10 06:36:19,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 06:36:19,301 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2019-09-10 06:36:19,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:36:19,307 INFO L225 Difference]: With dead ends: 982 [2019-09-10 06:36:19,307 INFO L226 Difference]: Without dead ends: 982 [2019-09-10 06:36:19,308 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-10 06:36:19,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2019-09-10 06:36:19,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 978. [2019-09-10 06:36:19,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 978 states. [2019-09-10 06:36:19,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1497 transitions. [2019-09-10 06:36:19,347 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1497 transitions. Word has length 45 [2019-09-10 06:36:19,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:36:19,348 INFO L475 AbstractCegarLoop]: Abstraction has 978 states and 1497 transitions. [2019-09-10 06:36:19,349 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 06:36:19,349 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1497 transitions. [2019-09-10 06:36:19,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 06:36:19,358 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:36:19,358 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] [2019-09-10 06:36:19,358 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:36:19,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:36:19,359 INFO L82 PathProgramCache]: Analyzing trace with hash 57272683, now seen corresponding path program 1 times [2019-09-10 06:36:19,359 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:36:19,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:19,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:36:19,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:19,363 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:36:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:36:19,421 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 06:36:19,421 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:36:19,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 06:36:19,422 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:36:19,422 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 06:36:19,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 06:36:19,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 06:36:19,423 INFO L87 Difference]: Start difference. First operand 978 states and 1497 transitions. Second operand 3 states. [2019-09-10 06:36:19,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:36:19,451 INFO L93 Difference]: Finished difference Result 1540 states and 2314 transitions. [2019-09-10 06:36:19,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 06:36:19,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2019-09-10 06:36:19,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:36:19,463 INFO L225 Difference]: With dead ends: 1540 [2019-09-10 06:36:19,463 INFO L226 Difference]: Without dead ends: 1540 [2019-09-10 06:36:19,464 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 06:36:19,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2019-09-10 06:36:19,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1538. [2019-09-10 06:36:19,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1538 states. [2019-09-10 06:36:19,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 2313 transitions. [2019-09-10 06:36:19,507 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 2313 transitions. Word has length 46 [2019-09-10 06:36:19,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:36:19,508 INFO L475 AbstractCegarLoop]: Abstraction has 1538 states and 2313 transitions. [2019-09-10 06:36:19,508 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 06:36:19,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 2313 transitions. [2019-09-10 06:36:19,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 06:36:19,510 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:36:19,510 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 06:36:19,510 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:36:19,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:36:19,511 INFO L82 PathProgramCache]: Analyzing trace with hash 318856598, now seen corresponding path program 1 times [2019-09-10 06:36:19,511 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:36:19,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:19,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:36:19,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:19,513 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:36:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:36:19,602 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 06:36:19,602 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:36:19,603 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 06:36:19,603 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:36:19,603 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 06:36:19,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 06:36:19,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 06:36:19,604 INFO L87 Difference]: Start difference. First operand 1538 states and 2313 transitions. Second operand 5 states. [2019-09-10 06:36:19,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:36:19,836 INFO L93 Difference]: Finished difference Result 3052 states and 4562 transitions. [2019-09-10 06:36:19,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 06:36:19,837 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2019-09-10 06:36:19,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:36:19,853 INFO L225 Difference]: With dead ends: 3052 [2019-09-10 06:36:19,853 INFO L226 Difference]: Without dead ends: 3052 [2019-09-10 06:36:19,854 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 06:36:19,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3052 states. [2019-09-10 06:36:19,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3052 to 3050. [2019-09-10 06:36:19,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3050 states. [2019-09-10 06:36:19,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3050 states to 3050 states and 4561 transitions. [2019-09-10 06:36:19,970 INFO L78 Accepts]: Start accepts. Automaton has 3050 states and 4561 transitions. Word has length 47 [2019-09-10 06:36:19,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:36:19,972 INFO L475 AbstractCegarLoop]: Abstraction has 3050 states and 4561 transitions. [2019-09-10 06:36:19,972 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 06:36:19,972 INFO L276 IsEmpty]: Start isEmpty. Operand 3050 states and 4561 transitions. [2019-09-10 06:36:19,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 06:36:19,975 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:36:19,976 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] [2019-09-10 06:36:19,976 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:36:19,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:36:19,984 INFO L82 PathProgramCache]: Analyzing trace with hash -495555397, now seen corresponding path program 1 times [2019-09-10 06:36:19,984 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:36:19,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:19,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:36:19,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:19,986 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:36:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:36:20,098 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 06:36:20,099 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:36:20,099 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 06:36:20,099 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:36:20,099 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 06:36:20,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 06:36:20,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 06:36:20,100 INFO L87 Difference]: Start difference. First operand 3050 states and 4561 transitions. Second operand 5 states. [2019-09-10 06:36:20,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:36:20,194 INFO L93 Difference]: Finished difference Result 6266 states and 9193 transitions. [2019-09-10 06:36:20,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 06:36:20,195 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2019-09-10 06:36:20,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:36:20,233 INFO L225 Difference]: With dead ends: 6266 [2019-09-10 06:36:20,233 INFO L226 Difference]: Without dead ends: 6266 [2019-09-10 06:36:20,233 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 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 06:36:20,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6266 states. [2019-09-10 06:36:20,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6266 to 3242. [2019-09-10 06:36:20,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3242 states. [2019-09-10 06:36:20,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3242 states to 3242 states and 4753 transitions. [2019-09-10 06:36:20,350 INFO L78 Accepts]: Start accepts. Automaton has 3242 states and 4753 transitions. Word has length 47 [2019-09-10 06:36:20,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:36:20,350 INFO L475 AbstractCegarLoop]: Abstraction has 3242 states and 4753 transitions. [2019-09-10 06:36:20,351 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 06:36:20,351 INFO L276 IsEmpty]: Start isEmpty. Operand 3242 states and 4753 transitions. [2019-09-10 06:36:20,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-09-10 06:36:20,351 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:36:20,352 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] [2019-09-10 06:36:20,352 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:36:20,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:36:20,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1827271577, now seen corresponding path program 1 times [2019-09-10 06:36:20,352 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:36:20,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:20,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:36:20,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:20,354 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:36:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:36:20,426 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 06:36:20,426 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:36:20,426 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 06:36:20,427 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:36:20,427 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 06:36:20,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 06:36:20,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 06:36:20,429 INFO L87 Difference]: Start difference. First operand 3242 states and 4753 transitions. Second operand 3 states. [2019-09-10 06:36:20,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:36:20,492 INFO L93 Difference]: Finished difference Result 3954 states and 5728 transitions. [2019-09-10 06:36:20,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 06:36:20,493 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2019-09-10 06:36:20,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:36:20,518 INFO L225 Difference]: With dead ends: 3954 [2019-09-10 06:36:20,518 INFO L226 Difference]: Without dead ends: 3954 [2019-09-10 06:36:20,519 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 06:36:20,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3954 states. [2019-09-10 06:36:20,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3954 to 3932. [2019-09-10 06:36:20,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3932 states. [2019-09-10 06:36:20,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3932 states to 3932 states and 5707 transitions. [2019-09-10 06:36:20,669 INFO L78 Accepts]: Start accepts. Automaton has 3932 states and 5707 transitions. Word has length 48 [2019-09-10 06:36:20,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:36:20,670 INFO L475 AbstractCegarLoop]: Abstraction has 3932 states and 5707 transitions. [2019-09-10 06:36:20,670 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 06:36:20,671 INFO L276 IsEmpty]: Start isEmpty. Operand 3932 states and 5707 transitions. [2019-09-10 06:36:20,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-10 06:36:20,675 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:36:20,675 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 06:36:20,676 INFO L418 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:36:20,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:36:20,677 INFO L82 PathProgramCache]: Analyzing trace with hash 273056890, now seen corresponding path program 1 times [2019-09-10 06:36:20,677 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:36:20,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:20,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:36:20,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:20,679 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:36:20,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:36:21,060 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:36:21,060 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:36:21,060 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:36:21,061 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 68 with the following transitions: [2019-09-10 06:36:21,063 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [56], [59], [64], [75], [77], [80], [91], [93], [96], [107], [109], [112], [115], [117], [120], [121], [123], [125], [130], [143], [145], [158], [166], [185], [196], [198], [211], [219], [238], [249], [251], [253], [256], [259], [262], [264], [266], [314], [315], [319], [320], [321] [2019-09-10 06:36:21,117 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 06:36:21,117 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 06:36:21,262 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 06:36:21,615 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 06:36:21,618 INFO L272 AbstractInterpreter]: Visited 61 different actions 330 times. Merged at 37 different actions 234 times. Widened at 13 different actions 27 times. Performed 1033 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1033 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 39 fixpoints after 12 different actions. Largest state had 94 variables. [2019-09-10 06:36:21,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:36:21,624 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 06:36:21,624 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:36:21,624 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 06:36:21,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:36:21,653 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 06:36:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:36:21,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-10 06:36:21,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 06:36:21,906 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 06:36:21,907 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 06:36:21,996 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 06:36:22,010 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 06:36:22,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4, 4] total 14 [2019-09-10 06:36:22,010 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 06:36:22,012 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-10 06:36:22,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-10 06:36:22,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-09-10 06:36:22,013 INFO L87 Difference]: Start difference. First operand 3932 states and 5707 transitions. Second operand 12 states. [2019-09-10 06:36:28,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:36:28,714 INFO L93 Difference]: Finished difference Result 42026 states and 58701 transitions. [2019-09-10 06:36:28,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2019-09-10 06:36:28,714 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 67 [2019-09-10 06:36:28,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:36:28,833 INFO L225 Difference]: With dead ends: 42026 [2019-09-10 06:36:28,834 INFO L226 Difference]: Without dead ends: 42026 [2019-09-10 06:36:28,837 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3780 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1765, Invalid=8135, Unknown=0, NotChecked=0, Total=9900 [2019-09-10 06:36:28,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42026 states. [2019-09-10 06:36:29,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42026 to 11446. [2019-09-10 06:36:29,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11446 states. [2019-09-10 06:36:29,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11446 states to 11446 states and 16202 transitions. [2019-09-10 06:36:29,386 INFO L78 Accepts]: Start accepts. Automaton has 11446 states and 16202 transitions. Word has length 67 [2019-09-10 06:36:29,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:36:29,387 INFO L475 AbstractCegarLoop]: Abstraction has 11446 states and 16202 transitions. [2019-09-10 06:36:29,387 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-10 06:36:29,387 INFO L276 IsEmpty]: Start isEmpty. Operand 11446 states and 16202 transitions. [2019-09-10 06:36:29,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-10 06:36:29,391 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:36:29,392 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 06:36:29,392 INFO L418 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:36:29,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:36:29,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1476022815, now seen corresponding path program 1 times [2019-09-10 06:36:29,393 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:36:29,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:29,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:36:29,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:29,395 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:36:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:36:29,444 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:36:29,445 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:36:29,445 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 06:36:29,445 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:36:29,446 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 06:36:29,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 06:36:29,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 06:36:29,446 INFO L87 Difference]: Start difference. First operand 11446 states and 16202 transitions. Second operand 3 states. [2019-09-10 06:36:29,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:36:29,502 INFO L93 Difference]: Finished difference Result 16737 states and 23461 transitions. [2019-09-10 06:36:29,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 06:36:29,503 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2019-09-10 06:36:29,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:36:29,628 INFO L225 Difference]: With dead ends: 16737 [2019-09-10 06:36:29,629 INFO L226 Difference]: Without dead ends: 16737 [2019-09-10 06:36:29,629 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 06:36:29,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16737 states. [2019-09-10 06:36:29,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16737 to 16735. [2019-09-10 06:36:29,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16735 states. [2019-09-10 06:36:29,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16735 states to 16735 states and 23460 transitions. [2019-09-10 06:36:29,888 INFO L78 Accepts]: Start accepts. Automaton has 16735 states and 23460 transitions. Word has length 67 [2019-09-10 06:36:29,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:36:29,889 INFO L475 AbstractCegarLoop]: Abstraction has 16735 states and 23460 transitions. [2019-09-10 06:36:29,889 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 06:36:29,889 INFO L276 IsEmpty]: Start isEmpty. Operand 16735 states and 23460 transitions. [2019-09-10 06:36:29,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-10 06:36:29,894 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:36:29,894 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 06:36:29,894 INFO L418 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:36:29,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:36:29,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1544866088, now seen corresponding path program 1 times [2019-09-10 06:36:29,895 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:36:29,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:29,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:36:29,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:29,897 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:36:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:36:29,976 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-10 06:36:29,976 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:36:29,976 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 06:36:29,977 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:36:29,977 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 06:36:29,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 06:36:29,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-09-10 06:36:29,978 INFO L87 Difference]: Start difference. First operand 16735 states and 23460 transitions. Second operand 6 states. [2019-09-10 06:36:30,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:36:30,257 INFO L93 Difference]: Finished difference Result 46091 states and 63744 transitions. [2019-09-10 06:36:30,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 06:36:30,258 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2019-09-10 06:36:30,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:36:30,370 INFO L225 Difference]: With dead ends: 46091 [2019-09-10 06:36:30,371 INFO L226 Difference]: Without dead ends: 46091 [2019-09-10 06:36:30,371 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2019-09-10 06:36:30,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46091 states. [2019-09-10 06:36:31,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46091 to 46087. [2019-09-10 06:36:31,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46087 states. [2019-09-10 06:36:31,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46087 states to 46087 states and 63742 transitions. [2019-09-10 06:36:31,690 INFO L78 Accepts]: Start accepts. Automaton has 46087 states and 63742 transitions. Word has length 67 [2019-09-10 06:36:31,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:36:31,691 INFO L475 AbstractCegarLoop]: Abstraction has 46087 states and 63742 transitions. [2019-09-10 06:36:31,691 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 06:36:31,691 INFO L276 IsEmpty]: Start isEmpty. Operand 46087 states and 63742 transitions. [2019-09-10 06:36:31,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-10 06:36:31,699 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:36:31,700 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 06:36:31,700 INFO L418 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:36:31,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:36:31,700 INFO L82 PathProgramCache]: Analyzing trace with hash 974449507, now seen corresponding path program 1 times [2019-09-10 06:36:31,700 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:36:31,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:31,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:36:31,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:36:31,702 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:36:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:36:31,779 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:36:31,779 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:36:31,780 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:36:31,780 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 68 with the following transitions: [2019-09-10 06:36:31,780 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [56], [77], [80], [83], [86], [91], [93], [96], [107], [109], [112], [115], [117], [120], [121], [123], [132], [143], [145], [158], [166], [185], [187], [190], [198], [201], [204], [207], [209], [211], [253], [266], [274], [293], [314], [315], [319], [320], [321] [2019-09-10 06:36:31,784 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 06:36:31,785 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 06:36:31,812 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 06:36:31,859 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 06:36:31,860 INFO L272 AbstractInterpreter]: Visited 53 different actions 92 times. Merged at 26 different actions 33 times. Never widened. Performed 380 root evaluator evaluations with a maximum evaluation depth of 5. Performed 380 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 3 fixpoints after 2 different actions. Largest state had 94 variables. [2019-09-10 06:36:31,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:36:31,860 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 06:36:32,032 INFO L227 lantSequenceWeakener]: Weakened 41 states. On average, predicates are now at 80.69% of their original sizes. [2019-09-10 06:36:32,033 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 06:36:33,665 INFO L420 sIntCurrentIteration]: We unified 66 AI predicates to 66 [2019-09-10 06:36:33,665 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 06:36:33,666 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 06:36:33,666 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [36] imperfect sequences [7] total 41 [2019-09-10 06:36:33,666 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:36:33,667 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-09-10 06:36:33,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-09-10 06:36:33,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1096, Unknown=0, NotChecked=0, Total=1260 [2019-09-10 06:36:33,668 INFO L87 Difference]: Start difference. First operand 46087 states and 63742 transitions. Second operand 36 states. [2019-09-10 06:36:59,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:36:59,888 INFO L93 Difference]: Finished difference Result 104351 states and 142432 transitions. [2019-09-10 06:36:59,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 223 states. [2019-09-10 06:36:59,888 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 67 [2019-09-10 06:36:59,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:37:00,076 INFO L225 Difference]: With dead ends: 104351 [2019-09-10 06:37:00,076 INFO L226 Difference]: Without dead ends: 104351 [2019-09-10 06:37:00,092 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 233 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23994 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=7261, Invalid=47729, Unknown=0, NotChecked=0, Total=54990 [2019-09-10 06:37:00,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104351 states. [2019-09-10 06:37:01,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104351 to 57678. [2019-09-10 06:37:01,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57678 states. [2019-09-10 06:37:01,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57678 states to 57678 states and 79199 transitions. [2019-09-10 06:37:01,372 INFO L78 Accepts]: Start accepts. Automaton has 57678 states and 79199 transitions. Word has length 67 [2019-09-10 06:37:01,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:37:01,372 INFO L475 AbstractCegarLoop]: Abstraction has 57678 states and 79199 transitions. [2019-09-10 06:37:01,372 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-09-10 06:37:01,372 INFO L276 IsEmpty]: Start isEmpty. Operand 57678 states and 79199 transitions. [2019-09-10 06:37:01,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-10 06:37:01,379 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:37:01,379 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 06:37:01,380 INFO L418 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:37:01,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:37:01,380 INFO L82 PathProgramCache]: Analyzing trace with hash 742408735, now seen corresponding path program 1 times [2019-09-10 06:37:01,380 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:37:01,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:37:01,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:37:01,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:37:01,382 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:37:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:37:01,422 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:37:01,422 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:37:01,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 06:37:01,423 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:37:01,423 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 06:37:01,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 06:37:01,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 06:37:01,424 INFO L87 Difference]: Start difference. First operand 57678 states and 79199 transitions. Second operand 3 states. [2019-09-10 06:37:01,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:37:01,582 INFO L93 Difference]: Finished difference Result 68117 states and 91940 transitions. [2019-09-10 06:37:01,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 06:37:01,583 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2019-09-10 06:37:01,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:37:01,703 INFO L225 Difference]: With dead ends: 68117 [2019-09-10 06:37:01,704 INFO L226 Difference]: Without dead ends: 68117 [2019-09-10 06:37:01,704 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 06:37:01,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68117 states. [2019-09-10 06:37:02,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68117 to 67653. [2019-09-10 06:37:02,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67653 states. [2019-09-10 06:37:02,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67653 states to 67653 states and 91477 transitions. [2019-09-10 06:37:02,342 INFO L78 Accepts]: Start accepts. Automaton has 67653 states and 91477 transitions. Word has length 67 [2019-09-10 06:37:02,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:37:02,342 INFO L475 AbstractCegarLoop]: Abstraction has 67653 states and 91477 transitions. [2019-09-10 06:37:02,342 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 06:37:02,342 INFO L276 IsEmpty]: Start isEmpty. Operand 67653 states and 91477 transitions. [2019-09-10 06:37:03,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-10 06:37:03,830 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:37:03,830 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 06:37:03,830 INFO L418 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:37:03,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:37:03,831 INFO L82 PathProgramCache]: Analyzing trace with hash 255572904, now seen corresponding path program 1 times [2019-09-10 06:37:03,831 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:37:03,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:37:03,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:37:03,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:37:03,832 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:37:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:37:03,902 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:37:03,903 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:37:03,903 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:37:03,904 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 68 with the following transitions: [2019-09-10 06:37:03,905 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [56], [77], [80], [91], [93], [96], [99], [102], [107], [109], [112], [115], [117], [120], [121], [123], [132], [134], [137], [145], [148], [151], [154], [156], [158], [196], [198], [211], [219], [238], [253], [266], [274], [293], [314], [315], [319], [320], [321] [2019-09-10 06:37:03,912 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 06:37:03,912 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 06:37:03,922 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 06:37:03,968 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 06:37:03,968 INFO L272 AbstractInterpreter]: Visited 53 different actions 110 times. Merged at 26 different actions 49 times. Never widened. Performed 412 root evaluator evaluations with a maximum evaluation depth of 5. Performed 412 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 3 fixpoints after 2 different actions. Largest state had 94 variables. [2019-09-10 06:37:03,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:37:03,969 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 06:37:04,034 INFO L227 lantSequenceWeakener]: Weakened 41 states. On average, predicates are now at 80.9% of their original sizes. [2019-09-10 06:37:04,034 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 06:37:05,172 INFO L420 sIntCurrentIteration]: We unified 66 AI predicates to 66 [2019-09-10 06:37:05,172 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 06:37:05,172 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 06:37:05,172 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [36] imperfect sequences [7] total 41 [2019-09-10 06:37:05,172 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:37:05,173 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-09-10 06:37:05,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-09-10 06:37:05,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1094, Unknown=0, NotChecked=0, Total=1260 [2019-09-10 06:37:05,174 INFO L87 Difference]: Start difference. First operand 67653 states and 91477 transitions. Second operand 36 states. [2019-09-10 06:37:31,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:37:31,309 INFO L93 Difference]: Finished difference Result 132783 states and 177908 transitions. [2019-09-10 06:37:31,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2019-09-10 06:37:31,310 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 67 [2019-09-10 06:37:31,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:37:31,460 INFO L225 Difference]: With dead ends: 132783 [2019-09-10 06:37:31,461 INFO L226 Difference]: Without dead ends: 132783 [2019-09-10 06:37:31,466 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17484 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=5391, Invalid=36021, Unknown=0, NotChecked=0, Total=41412 [2019-09-10 06:37:31,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132783 states. [2019-09-10 06:37:32,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132783 to 75084. [2019-09-10 06:37:32,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75084 states. [2019-09-10 06:37:32,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75084 states to 75084 states and 101018 transitions. [2019-09-10 06:37:32,937 INFO L78 Accepts]: Start accepts. Automaton has 75084 states and 101018 transitions. Word has length 67 [2019-09-10 06:37:32,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:37:32,937 INFO L475 AbstractCegarLoop]: Abstraction has 75084 states and 101018 transitions. [2019-09-10 06:37:32,937 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-09-10 06:37:32,937 INFO L276 IsEmpty]: Start isEmpty. Operand 75084 states and 101018 transitions. [2019-09-10 06:37:32,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-10 06:37:32,947 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:37:32,947 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 06:37:32,947 INFO L418 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:37:32,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:37:32,948 INFO L82 PathProgramCache]: Analyzing trace with hash 479308742, now seen corresponding path program 1 times [2019-09-10 06:37:32,948 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:37:32,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:37:32,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:37:32,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:37:32,950 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:37:32,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:37:32,999 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:37:33,000 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:37:33,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 06:37:33,000 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:37:33,001 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 06:37:33,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 06:37:33,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 06:37:33,001 INFO L87 Difference]: Start difference. First operand 75084 states and 101018 transitions. Second operand 3 states. [2019-09-10 06:37:33,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:37:33,150 INFO L93 Difference]: Finished difference Result 71905 states and 95743 transitions. [2019-09-10 06:37:33,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 06:37:33,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-09-10 06:37:33,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:37:33,215 INFO L225 Difference]: With dead ends: 71905 [2019-09-10 06:37:33,216 INFO L226 Difference]: Without dead ends: 71905 [2019-09-10 06:37:33,216 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 06:37:33,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71905 states. [2019-09-10 06:37:33,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71905 to 64377. [2019-09-10 06:37:33,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64377 states. [2019-09-10 06:37:33,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64377 states to 64377 states and 85596 transitions. [2019-09-10 06:37:33,780 INFO L78 Accepts]: Start accepts. Automaton has 64377 states and 85596 transitions. Word has length 68 [2019-09-10 06:37:33,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:37:33,781 INFO L475 AbstractCegarLoop]: Abstraction has 64377 states and 85596 transitions. [2019-09-10 06:37:33,781 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 06:37:33,781 INFO L276 IsEmpty]: Start isEmpty. Operand 64377 states and 85596 transitions. [2019-09-10 06:37:33,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-10 06:37:33,786 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:37:33,786 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 06:37:33,787 INFO L418 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:37:33,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:37:33,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1485977938, now seen corresponding path program 1 times [2019-09-10 06:37:33,787 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:37:33,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:37:33,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:37:33,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:37:33,788 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:37:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:37:33,827 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:37:33,828 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:37:33,828 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 06:37:33,828 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:37:33,829 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 06:37:33,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 06:37:33,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 06:37:33,829 INFO L87 Difference]: Start difference. First operand 64377 states and 85596 transitions. Second operand 3 states. [2019-09-10 06:37:34,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:37:34,004 INFO L93 Difference]: Finished difference Result 69966 states and 91072 transitions. [2019-09-10 06:37:34,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 06:37:34,004 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-09-10 06:37:34,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:37:34,124 INFO L225 Difference]: With dead ends: 69966 [2019-09-10 06:37:34,125 INFO L226 Difference]: Without dead ends: 63586 [2019-09-10 06:37:34,125 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 06:37:34,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63586 states. [2019-09-10 06:37:34,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63586 to 61487. [2019-09-10 06:37:34,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61487 states. [2019-09-10 06:37:34,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61487 states to 61487 states and 80627 transitions. [2019-09-10 06:37:34,646 INFO L78 Accepts]: Start accepts. Automaton has 61487 states and 80627 transitions. Word has length 68 [2019-09-10 06:37:34,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:37:34,646 INFO L475 AbstractCegarLoop]: Abstraction has 61487 states and 80627 transitions. [2019-09-10 06:37:34,646 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 06:37:34,646 INFO L276 IsEmpty]: Start isEmpty. Operand 61487 states and 80627 transitions. [2019-09-10 06:37:34,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-10 06:37:34,650 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:37:34,650 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 06:37:34,650 INFO L418 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:37:34,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:37:34,651 INFO L82 PathProgramCache]: Analyzing trace with hash -429505741, now seen corresponding path program 1 times [2019-09-10 06:37:34,651 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:37:34,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:37:34,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:37:34,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:37:34,652 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:37:34,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:37:34,731 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:37:34,731 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:37:34,732 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:37:34,732 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 70 with the following transitions: [2019-09-10 06:37:34,732 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [56], [59], [64], [67], [70], [75], [77], [80], [83], [91], [93], [96], [107], [109], [112], [115], [117], [120], [121], [123], [132], [143], [145], [158], [166], [185], [194], [198], [211], [219], [238], [240], [243], [251], [253], [256], [259], [262], [264], [266], [314], [315], [319], [320], [321] [2019-09-10 06:37:34,734 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 06:37:34,735 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 06:37:34,742 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 06:37:34,795 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 06:37:34,796 INFO L272 AbstractInterpreter]: Visited 59 different actions 156 times. Merged at 32 different actions 82 times. Never widened. Performed 568 root evaluator evaluations with a maximum evaluation depth of 5. Performed 568 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 7 fixpoints after 6 different actions. Largest state had 94 variables. [2019-09-10 06:37:34,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:37:34,796 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 06:37:34,880 INFO L227 lantSequenceWeakener]: Weakened 43 states. On average, predicates are now at 81.76% of their original sizes. [2019-09-10 06:37:34,881 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 06:37:37,830 INFO L420 sIntCurrentIteration]: We unified 68 AI predicates to 68 [2019-09-10 06:37:37,831 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 06:37:37,831 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 06:37:37,831 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [40] imperfect sequences [7] total 45 [2019-09-10 06:37:37,831 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:37:37,832 INFO L454 AbstractCegarLoop]: Interpolant automaton has 40 states [2019-09-10 06:37:37,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2019-09-10 06:37:37,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1375, Unknown=0, NotChecked=0, Total=1560 [2019-09-10 06:37:37,835 INFO L87 Difference]: Start difference. First operand 61487 states and 80627 transitions. Second operand 40 states. [2019-09-10 06:38:29,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:38:29,846 INFO L93 Difference]: Finished difference Result 119005 states and 153992 transitions. [2019-09-10 06:38:29,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 364 states. [2019-09-10 06:38:29,846 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 69 [2019-09-10 06:38:29,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:38:29,988 INFO L225 Difference]: With dead ends: 119005 [2019-09-10 06:38:29,989 INFO L226 Difference]: Without dead ends: 119005 [2019-09-10 06:38:29,998 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 375 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63985 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=16595, Invalid=125157, Unknown=0, NotChecked=0, Total=141752 [2019-09-10 06:38:30,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119005 states. [2019-09-10 06:38:30,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119005 to 67642. [2019-09-10 06:38:30,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67642 states. [2019-09-10 06:38:30,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67642 states to 67642 states and 87960 transitions. [2019-09-10 06:38:30,808 INFO L78 Accepts]: Start accepts. Automaton has 67642 states and 87960 transitions. Word has length 69 [2019-09-10 06:38:30,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:38:30,808 INFO L475 AbstractCegarLoop]: Abstraction has 67642 states and 87960 transitions. [2019-09-10 06:38:30,808 INFO L476 AbstractCegarLoop]: Interpolant automaton has 40 states. [2019-09-10 06:38:30,808 INFO L276 IsEmpty]: Start isEmpty. Operand 67642 states and 87960 transitions. [2019-09-10 06:38:30,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-10 06:38:30,814 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:38:30,815 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 06:38:30,815 INFO L418 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:38:30,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:38:30,815 INFO L82 PathProgramCache]: Analyzing trace with hash 410063985, now seen corresponding path program 1 times [2019-09-10 06:38:30,816 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:38:30,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:38:30,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:38:30,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:38:30,817 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:38:30,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:38:30,888 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:38:30,889 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:38:30,889 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:38:30,889 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 70 with the following transitions: [2019-09-10 06:38:30,890 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [56], [77], [80], [83], [86], [91], [93], [96], [107], [109], [112], [115], [117], [120], [121], [123], [132], [143], [145], [148], [151], [154], [156], [158], [187], [190], [198], [201], [204], [207], [209], [211], [253], [266], [274], [293], [314], [315], [319], [320], [321] [2019-09-10 06:38:30,893 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 06:38:30,893 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 06:38:30,901 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 06:38:30,930 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 06:38:30,931 INFO L272 AbstractInterpreter]: Visited 55 different actions 122 times. Merged at 28 different actions 59 times. Never widened. Performed 481 root evaluator evaluations with a maximum evaluation depth of 5. Performed 481 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 4 fixpoints after 2 different actions. Largest state had 95 variables. [2019-09-10 06:38:30,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:38:30,931 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 06:38:31,010 INFO L227 lantSequenceWeakener]: Weakened 43 states. On average, predicates are now at 81.3% of their original sizes. [2019-09-10 06:38:31,010 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 06:38:32,254 INFO L420 sIntCurrentIteration]: We unified 68 AI predicates to 68 [2019-09-10 06:38:32,254 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 06:38:32,255 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 06:38:32,255 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [38] imperfect sequences [7] total 43 [2019-09-10 06:38:32,255 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:38:32,255 INFO L454 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-09-10 06:38:32,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-09-10 06:38:32,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1229, Unknown=0, NotChecked=0, Total=1406 [2019-09-10 06:38:32,256 INFO L87 Difference]: Start difference. First operand 67642 states and 87960 transitions. Second operand 38 states. [2019-09-10 06:39:01,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:39:01,887 INFO L93 Difference]: Finished difference Result 132525 states and 171200 transitions. [2019-09-10 06:39:01,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 251 states. [2019-09-10 06:39:01,887 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 69 [2019-09-10 06:39:01,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:39:02,072 INFO L225 Difference]: With dead ends: 132525 [2019-09-10 06:39:02,073 INFO L226 Difference]: Without dead ends: 132525 [2019-09-10 06:39:02,076 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 263 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30536 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=8986, Invalid=60974, Unknown=0, NotChecked=0, Total=69960 [2019-09-10 06:39:02,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132525 states. [2019-09-10 06:39:03,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132525 to 72194. [2019-09-10 06:39:03,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72194 states. [2019-09-10 06:39:03,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72194 states to 72194 states and 93753 transitions. [2019-09-10 06:39:03,127 INFO L78 Accepts]: Start accepts. Automaton has 72194 states and 93753 transitions. Word has length 69 [2019-09-10 06:39:03,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:39:03,128 INFO L475 AbstractCegarLoop]: Abstraction has 72194 states and 93753 transitions. [2019-09-10 06:39:03,128 INFO L476 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-09-10 06:39:03,128 INFO L276 IsEmpty]: Start isEmpty. Operand 72194 states and 93753 transitions. [2019-09-10 06:39:03,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-10 06:39:03,133 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:39:03,134 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 06:39:03,134 INFO L418 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:39:03,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:39:03,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1762268375, now seen corresponding path program 1 times [2019-09-10 06:39:03,134 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:39:03,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:39:03,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:39:03,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:39:03,136 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:39:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:39:03,205 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-10 06:39:03,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:39:03,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 06:39:03,206 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:39:03,206 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 06:39:03,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 06:39:03,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-10 06:39:03,207 INFO L87 Difference]: Start difference. First operand 72194 states and 93753 transitions. Second operand 5 states. [2019-09-10 06:39:03,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:39:03,513 INFO L93 Difference]: Finished difference Result 94103 states and 122976 transitions. [2019-09-10 06:39:03,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 06:39:03,514 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2019-09-10 06:39:03,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:39:03,616 INFO L225 Difference]: With dead ends: 94103 [2019-09-10 06:39:03,617 INFO L226 Difference]: Without dead ends: 94088 [2019-09-10 06:39:03,617 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-09-10 06:39:03,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94088 states. [2019-09-10 06:39:04,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94088 to 88261. [2019-09-10 06:39:04,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88261 states. [2019-09-10 06:39:04,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88261 states to 88261 states and 114882 transitions. [2019-09-10 06:39:04,476 INFO L78 Accepts]: Start accepts. Automaton has 88261 states and 114882 transitions. Word has length 70 [2019-09-10 06:39:04,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:39:04,476 INFO L475 AbstractCegarLoop]: Abstraction has 88261 states and 114882 transitions. [2019-09-10 06:39:04,476 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 06:39:04,476 INFO L276 IsEmpty]: Start isEmpty. Operand 88261 states and 114882 transitions. [2019-09-10 06:39:04,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-10 06:39:04,483 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:39:04,483 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 06:39:04,483 INFO L418 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:39:04,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:39:04,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1404077468, now seen corresponding path program 1 times [2019-09-10 06:39:04,483 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:39:04,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:39:04,485 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:39:04,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:39:04,485 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:39:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:39:04,523 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-10 06:39:04,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:39:04,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 06:39:04,524 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:39:04,524 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 06:39:04,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 06:39:04,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 06:39:04,525 INFO L87 Difference]: Start difference. First operand 88261 states and 114882 transitions. Second operand 3 states. [2019-09-10 06:39:05,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:39:05,170 INFO L93 Difference]: Finished difference Result 75890 states and 98998 transitions. [2019-09-10 06:39:05,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 06:39:05,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2019-09-10 06:39:05,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:39:05,278 INFO L225 Difference]: With dead ends: 75890 [2019-09-10 06:39:05,278 INFO L226 Difference]: Without dead ends: 75890 [2019-09-10 06:39:05,278 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 06:39:05,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75890 states. [2019-09-10 06:39:05,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75890 to 75747. [2019-09-10 06:39:05,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75747 states. [2019-09-10 06:39:06,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75747 states to 75747 states and 98840 transitions. [2019-09-10 06:39:06,111 INFO L78 Accepts]: Start accepts. Automaton has 75747 states and 98840 transitions. Word has length 70 [2019-09-10 06:39:06,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:39:06,111 INFO L475 AbstractCegarLoop]: Abstraction has 75747 states and 98840 transitions. [2019-09-10 06:39:06,111 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 06:39:06,111 INFO L276 IsEmpty]: Start isEmpty. Operand 75747 states and 98840 transitions. [2019-09-10 06:39:06,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-10 06:39:06,115 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:39:06,115 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 06:39:06,115 INFO L418 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:39:06,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:39:06,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1802059936, now seen corresponding path program 1 times [2019-09-10 06:39:06,116 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:39:06,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:39:06,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:39:06,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:39:06,118 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:39:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:39:06,176 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-10 06:39:06,176 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:39:06,176 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 06:39:06,176 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:39:06,177 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 06:39:06,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 06:39:06,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-10 06:39:06,177 INFO L87 Difference]: Start difference. First operand 75747 states and 98840 transitions. Second operand 5 states. [2019-09-10 06:39:06,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:39:06,457 INFO L93 Difference]: Finished difference Result 93799 states and 123097 transitions. [2019-09-10 06:39:06,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 06:39:06,457 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2019-09-10 06:39:06,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:39:06,572 INFO L225 Difference]: With dead ends: 93799 [2019-09-10 06:39:06,573 INFO L226 Difference]: Without dead ends: 93799 [2019-09-10 06:39:06,573 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-09-10 06:39:06,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93799 states. [2019-09-10 06:39:07,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93799 to 87972. [2019-09-10 06:39:07,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87972 states. [2019-09-10 06:39:07,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87972 states to 87972 states and 115073 transitions. [2019-09-10 06:39:07,392 INFO L78 Accepts]: Start accepts. Automaton has 87972 states and 115073 transitions. Word has length 70 [2019-09-10 06:39:07,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:39:07,392 INFO L475 AbstractCegarLoop]: Abstraction has 87972 states and 115073 transitions. [2019-09-10 06:39:07,392 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 06:39:07,392 INFO L276 IsEmpty]: Start isEmpty. Operand 87972 states and 115073 transitions. [2019-09-10 06:39:07,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-09-10 06:39:07,395 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:39:07,396 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 06:39:07,396 INFO L418 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:39:07,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:39:07,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1700738555, now seen corresponding path program 1 times [2019-09-10 06:39:07,396 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:39:07,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:39:07,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:39:07,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:39:07,397 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:39:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:39:07,447 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:39:07,447 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:39:07,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 06:39:07,448 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:39:07,448 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 06:39:07,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 06:39:07,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 06:39:07,449 INFO L87 Difference]: Start difference. First operand 87972 states and 115073 transitions. Second operand 3 states. [2019-09-10 06:39:07,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:39:07,672 INFO L93 Difference]: Finished difference Result 76672 states and 99155 transitions. [2019-09-10 06:39:07,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 06:39:07,673 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2019-09-10 06:39:07,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:39:07,771 INFO L225 Difference]: With dead ends: 76672 [2019-09-10 06:39:07,771 INFO L226 Difference]: Without dead ends: 76672 [2019-09-10 06:39:07,775 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 06:39:07,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76672 states. [2019-09-10 06:39:09,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76672 to 76515. [2019-09-10 06:39:09,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76515 states. [2019-09-10 06:39:09,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76515 states to 76515 states and 98985 transitions. [2019-09-10 06:39:09,410 INFO L78 Accepts]: Start accepts. Automaton has 76515 states and 98985 transitions. Word has length 71 [2019-09-10 06:39:09,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:39:09,410 INFO L475 AbstractCegarLoop]: Abstraction has 76515 states and 98985 transitions. [2019-09-10 06:39:09,410 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 06:39:09,410 INFO L276 IsEmpty]: Start isEmpty. Operand 76515 states and 98985 transitions. [2019-09-10 06:39:09,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-09-10 06:39:09,414 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:39:09,414 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 06:39:09,415 INFO L418 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:39:09,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:39:09,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1353621055, now seen corresponding path program 1 times [2019-09-10 06:39:09,415 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:39:09,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:39:09,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:39:09,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:39:09,416 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:39:09,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:39:09,474 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 06:39:09,474 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:39:09,474 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 06:39:09,474 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:39:09,475 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 06:39:09,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 06:39:09,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-10 06:39:09,475 INFO L87 Difference]: Start difference. First operand 76515 states and 98985 transitions. Second operand 5 states. [2019-09-10 06:39:09,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:39:09,745 INFO L93 Difference]: Finished difference Result 86851 states and 112690 transitions. [2019-09-10 06:39:09,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 06:39:09,746 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 71 [2019-09-10 06:39:09,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:39:09,833 INFO L225 Difference]: With dead ends: 86851 [2019-09-10 06:39:09,833 INFO L226 Difference]: Without dead ends: 86851 [2019-09-10 06:39:09,833 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-09-10 06:39:09,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86851 states. [2019-09-10 06:39:10,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86851 to 84461. [2019-09-10 06:39:10,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84461 states. [2019-09-10 06:39:10,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84461 states to 84461 states and 109431 transitions. [2019-09-10 06:39:10,590 INFO L78 Accepts]: Start accepts. Automaton has 84461 states and 109431 transitions. Word has length 71 [2019-09-10 06:39:10,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:39:10,590 INFO L475 AbstractCegarLoop]: Abstraction has 84461 states and 109431 transitions. [2019-09-10 06:39:10,590 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 06:39:10,590 INFO L276 IsEmpty]: Start isEmpty. Operand 84461 states and 109431 transitions. [2019-09-10 06:39:10,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-09-10 06:39:10,595 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:39:10,595 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 06:39:10,595 INFO L418 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:39:10,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:39:10,597 INFO L82 PathProgramCache]: Analyzing trace with hash -845481156, now seen corresponding path program 1 times [2019-09-10 06:39:10,597 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:39:10,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:39:10,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:39:10,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:39:10,598 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:39:10,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:39:10,667 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:39:10,668 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:39:10,668 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:39:10,669 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 74 with the following transitions: [2019-09-10 06:39:10,670 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [56], [59], [64], [67], [70], [75], [77], [80], [83], [86], [91], [93], [96], [107], [109], [112], [115], [117], [120], [121], [123], [132], [143], [145], [158], [166], [185], [187], [190], [198], [201], [204], [207], [209], [211], [240], [243], [251], [253], [256], [259], [262], [264], [266], [314], [315], [319], [320], [321] [2019-09-10 06:39:10,671 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 06:39:10,672 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 06:39:10,680 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 06:39:10,731 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 06:39:10,731 INFO L272 AbstractInterpreter]: Visited 63 different actions 175 times. Merged at 35 different actions 97 times. Never widened. Performed 599 root evaluator evaluations with a maximum evaluation depth of 5. Performed 599 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 8 fixpoints after 6 different actions. Largest state had 95 variables. [2019-09-10 06:39:10,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:39:10,731 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 06:39:10,798 INFO L227 lantSequenceWeakener]: Weakened 47 states. On average, predicates are now at 81.48% of their original sizes. [2019-09-10 06:39:10,798 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 06:39:12,348 INFO L420 sIntCurrentIteration]: We unified 72 AI predicates to 72 [2019-09-10 06:39:12,348 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 06:39:12,348 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 06:39:12,348 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [42] imperfect sequences [7] total 47 [2019-09-10 06:39:12,348 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:39:12,349 INFO L454 AbstractCegarLoop]: Interpolant automaton has 42 states [2019-09-10 06:39:12,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2019-09-10 06:39:12,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1536, Unknown=0, NotChecked=0, Total=1722 [2019-09-10 06:39:12,349 INFO L87 Difference]: Start difference. First operand 84461 states and 109431 transitions. Second operand 42 states. [2019-09-10 06:40:10,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:40:10,740 INFO L93 Difference]: Finished difference Result 183956 states and 236280 transitions. [2019-09-10 06:40:10,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 447 states. [2019-09-10 06:40:10,740 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 73 [2019-09-10 06:40:10,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:40:10,955 INFO L225 Difference]: With dead ends: 183956 [2019-09-10 06:40:10,955 INFO L226 Difference]: Without dead ends: 183956 [2019-09-10 06:40:10,964 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 462 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98705 ImplicationChecksByTransitivity, 25.9s TimeCoverageRelationStatistics Valid=20893, Invalid=193939, Unknown=0, NotChecked=0, Total=214832 [2019-09-10 06:40:11,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183956 states. [2019-09-10 06:40:12,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183956 to 103288. [2019-09-10 06:40:12,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103288 states. [2019-09-10 06:40:12,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103288 states to 103288 states and 133341 transitions. [2019-09-10 06:40:12,798 INFO L78 Accepts]: Start accepts. Automaton has 103288 states and 133341 transitions. Word has length 73 [2019-09-10 06:40:12,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:40:12,798 INFO L475 AbstractCegarLoop]: Abstraction has 103288 states and 133341 transitions. [2019-09-10 06:40:12,798 INFO L476 AbstractCegarLoop]: Interpolant automaton has 42 states. [2019-09-10 06:40:12,798 INFO L276 IsEmpty]: Start isEmpty. Operand 103288 states and 133341 transitions. [2019-09-10 06:40:12,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-09-10 06:40:12,803 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:40:12,803 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 06:40:12,803 INFO L418 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:40:12,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:40:12,803 INFO L82 PathProgramCache]: Analyzing trace with hash 694220252, now seen corresponding path program 1 times [2019-09-10 06:40:12,803 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:40:12,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:40:12,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:40:12,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:40:12,805 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:40:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:40:12,884 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:40:12,885 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:40:12,885 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:40:12,885 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 75 with the following transitions: [2019-09-10 06:40:12,885 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [56], [59], [64], [67], [70], [75], [77], [80], [83], [91], [93], [96], [99], [102], [107], [109], [112], [115], [117], [120], [121], [123], [132], [134], [137], [145], [148], [151], [154], [156], [158], [194], [198], [211], [219], [238], [240], [243], [251], [253], [256], [259], [262], [264], [266], [314], [315], [319], [320], [321] [2019-09-10 06:40:12,892 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 06:40:12,892 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 06:40:12,901 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 06:40:12,963 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 06:40:12,963 INFO L272 AbstractInterpreter]: Visited 64 different actions 197 times. Merged at 37 different actions 117 times. Widened at 1 different actions 1 times. Performed 675 root evaluator evaluations with a maximum evaluation depth of 5. Performed 675 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 10 fixpoints after 5 different actions. Largest state had 95 variables. [2019-09-10 06:40:12,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:40:12,964 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 06:40:13,066 INFO L227 lantSequenceWeakener]: Weakened 48 states. On average, predicates are now at 81.4% of their original sizes. [2019-09-10 06:40:13,067 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 06:40:14,591 INFO L420 sIntCurrentIteration]: We unified 73 AI predicates to 73 [2019-09-10 06:40:14,592 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 06:40:14,592 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 06:40:14,592 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [41] imperfect sequences [7] total 46 [2019-09-10 06:40:14,592 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:40:14,593 INFO L454 AbstractCegarLoop]: Interpolant automaton has 41 states [2019-09-10 06:40:14,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2019-09-10 06:40:14,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1463, Unknown=0, NotChecked=0, Total=1640 [2019-09-10 06:40:14,594 INFO L87 Difference]: Start difference. First operand 103288 states and 133341 transitions. Second operand 41 states. [2019-09-10 06:41:45,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:41:45,688 INFO L93 Difference]: Finished difference Result 248722 states and 315170 transitions. [2019-09-10 06:41:45,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 566 states. [2019-09-10 06:41:45,688 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 74 [2019-09-10 06:41:45,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:41:45,997 INFO L225 Difference]: With dead ends: 248722 [2019-09-10 06:41:45,998 INFO L226 Difference]: Without dead ends: 248722 [2019-09-10 06:41:46,011 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 577 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159255 ImplicationChecksByTransitivity, 33.1s TimeCoverageRelationStatistics Valid=35075, Invalid=299587, Unknown=0, NotChecked=0, Total=334662 [2019-09-10 06:41:46,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248722 states. [2019-09-10 06:41:47,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248722 to 129396. [2019-09-10 06:41:47,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129396 states. [2019-09-10 06:41:48,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129396 states to 129396 states and 165721 transitions. [2019-09-10 06:41:48,171 INFO L78 Accepts]: Start accepts. Automaton has 129396 states and 165721 transitions. Word has length 74 [2019-09-10 06:41:48,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:41:48,172 INFO L475 AbstractCegarLoop]: Abstraction has 129396 states and 165721 transitions. [2019-09-10 06:41:48,172 INFO L476 AbstractCegarLoop]: Interpolant automaton has 41 states. [2019-09-10 06:41:48,172 INFO L276 IsEmpty]: Start isEmpty. Operand 129396 states and 165721 transitions. [2019-09-10 06:41:48,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-09-10 06:41:48,177 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:41:48,177 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 06:41:48,177 INFO L418 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:41:48,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:41:48,178 INFO L82 PathProgramCache]: Analyzing trace with hash -342138422, now seen corresponding path program 1 times [2019-09-10 06:41:48,178 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:41:48,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:41:48,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:41:48,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:41:48,179 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:41:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:41:48,375 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:41:48,376 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:41:48,376 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:41:48,376 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 76 with the following transitions: [2019-09-10 06:41:48,376 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [56], [59], [64], [67], [70], [75], [77], [80], [83], [86], [91], [93], [96], [107], [109], [112], [115], [117], [120], [121], [123], [132], [143], [145], [148], [151], [154], [156], [158], [187], [190], [198], [201], [204], [207], [209], [211], [240], [243], [251], [253], [256], [259], [262], [264], [266], [314], [315], [319], [320], [321] [2019-09-10 06:41:48,378 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 06:41:48,378 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 06:41:48,386 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 06:41:48,542 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 06:41:48,542 INFO L272 AbstractInterpreter]: Visited 70 different actions 445 times. Merged at 46 different actions 334 times. Widened at 15 different actions 51 times. Performed 1380 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1380 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 34 fixpoints after 16 different actions. Largest state had 96 variables. [2019-09-10 06:41:48,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:41:48,543 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 06:41:48,543 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:41:48,543 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 06:41:48,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:41:48,558 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 06:41:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:41:48,635 INFO L256 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-10 06:41:48,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 06:41:48,758 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:41:49,702 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:41:49,702 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 06:41:50,093 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 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 06:41:50,106 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 06:41:50,107 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 28 [2019-09-10 06:41:50,107 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 06:41:50,107 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-10 06:41:50,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-10 06:41:50,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2019-09-10 06:41:50,108 INFO L87 Difference]: Start difference. First operand 129396 states and 165721 transitions. Second operand 19 states. [2019-09-10 06:41:50,703 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 06:41:51,010 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 06:41:51,361 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 06:41:51,714 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 06:41:52,088 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2019-09-10 06:41:52,472 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2019-09-10 06:41:52,858 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2019-09-10 06:41:53,252 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2019-09-10 06:41:53,797 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2019-09-10 06:41:54,254 WARN L188 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2019-09-10 06:41:54,640 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2019-09-10 06:41:55,062 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-10 06:41:55,413 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-10 06:41:55,781 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 06:41:56,092 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-10 06:41:56,454 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-10 06:41:56,782 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-10 06:41:57,067 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-10 06:41:57,471 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 06:41:57,893 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2019-09-10 06:41:58,302 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-10 06:41:58,680 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-10 06:41:59,034 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-10 06:42:00,019 WARN L188 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-10 06:42:00,334 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-10 06:42:00,694 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2019-09-10 06:42:01,038 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2019-09-10 06:42:01,517 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-10 06:42:01,956 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2019-09-10 06:42:02,286 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 06:42:02,722 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2019-09-10 06:42:03,095 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-10 06:42:03,419 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2019-09-10 06:42:03,820 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2019-09-10 06:42:04,212 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 06:42:04,607 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-10 06:42:05,076 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2019-09-10 06:42:05,563 WARN L188 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2019-09-10 06:42:05,887 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2019-09-10 06:42:06,235 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-10 06:42:06,586 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-10 06:42:06,993 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2019-09-10 06:42:07,481 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2019-09-10 06:42:07,971 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2019-09-10 06:42:08,404 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-10 06:42:08,839 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-09-10 06:42:09,294 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2019-09-10 06:42:09,673 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-10 06:42:10,057 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2019-09-10 06:42:10,573 WARN L188 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2019-09-10 06:42:10,896 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 06:42:11,217 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2019-09-10 06:42:11,900 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2019-09-10 06:42:12,227 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2019-09-10 06:42:12,732 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2019-09-10 06:42:13,158 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-09-10 06:42:13,566 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 06:42:13,995 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2019-09-10 06:42:14,417 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2019-09-10 06:42:14,888 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 06:42:15,234 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-09-10 06:42:15,579 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2019-09-10 06:42:15,875 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 06:42:16,115 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 06:42:16,292 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-10 06:42:16,702 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2019-09-10 06:42:17,031 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 06:42:17,385 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-09-10 06:42:17,670 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 06:42:18,041 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-10 06:42:18,447 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-10 06:42:18,811 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2019-09-10 06:42:19,132 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 06:42:19,603 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-10 06:42:19,949 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 06:42:20,162 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-09-10 06:42:20,582 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-10 06:42:20,932 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-09-10 06:42:21,261 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 06:42:21,487 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 06:42:21,846 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 06:42:22,104 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 06:42:22,332 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2019-09-10 06:42:22,669 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 06:42:23,003 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-10 06:42:23,265 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 06:42:23,461 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 06:42:24,321 WARN L188 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-10 06:42:24,694 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-09-10 06:42:25,012 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 06:42:25,377 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-10 06:42:25,587 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-09-10 06:42:26,103 WARN L188 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-10 06:42:26,454 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-10 06:42:26,678 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 06:42:26,878 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-10 06:42:27,186 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 06:42:27,699 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 06:42:28,049 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 06:42:28,501 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2019-09-10 06:42:28,803 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 06:42:29,135 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-10 06:42:29,377 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-10 06:42:29,756 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2019-09-10 06:42:30,417 WARN L188 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2019-09-10 06:42:30,865 WARN L188 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-10 06:42:31,228 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 06:42:31,633 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 06:42:31,924 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-09-10 06:42:32,154 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 06:42:32,494 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-10 06:42:32,745 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 06:42:32,996 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 06:42:33,320 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2019-09-10 06:42:33,735 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2019-09-10 06:42:34,208 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2019-09-10 06:42:34,496 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 06:42:34,942 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2019-09-10 06:42:35,207 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 06:42:35,615 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-10 06:42:35,960 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 06:42:36,325 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-09-10 06:42:36,550 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-09-10 06:42:36,997 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 06:42:37,330 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 06:42:37,656 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 06:42:37,951 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 06:42:38,332 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2019-09-10 06:42:38,649 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 06:42:39,129 WARN L188 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-10 06:42:39,622 WARN L188 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-10 06:42:40,140 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2019-09-10 06:42:40,566 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-10 06:42:41,020 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 06:42:41,256 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 06:42:41,827 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2019-09-10 06:42:42,044 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-10 06:42:42,530 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-10 06:42:42,845 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 06:42:43,116 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 06:42:43,469 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 06:42:43,746 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 06:42:44,001 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 06:42:44,310 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 06:42:45,084 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 06:42:45,407 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-10 06:42:45,989 WARN L188 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2019-09-10 06:42:46,353 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-10 06:42:46,689 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-10 06:42:47,020 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-10 06:42:47,314 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-09-10 06:42:47,537 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 06:42:47,777 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 06:42:47,999 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-10 06:42:48,376 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2019-09-10 06:42:48,636 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 06:42:48,865 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 06:42:49,075 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 06:42:49,295 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-10 06:42:49,665 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 06:42:49,929 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-10 06:42:50,199 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 06:42:50,414 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-10 06:42:50,872 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 06:42:51,238 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-10 06:42:51,737 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 85 [2019-09-10 06:42:52,123 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2019-09-10 06:42:52,517 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2019-09-10 06:42:52,870 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 06:42:53,102 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 06:42:53,380 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 06:42:53,612 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-10 06:42:53,979 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2019-09-10 06:42:54,279 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 06:42:54,509 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-10 06:42:54,942 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2019-09-10 06:42:55,307 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 06:42:55,678 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-09-10 06:42:56,120 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-10 06:42:56,486 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-09-10 06:42:56,837 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 06:42:57,069 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 06:42:57,405 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-09-10 06:42:57,664 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 06:42:57,908 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 06:42:58,108 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 06:42:58,589 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-10 06:42:58,822 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-10 06:42:59,290 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-10 06:42:59,764 WARN L188 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-10 06:43:00,168 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-10 06:43:00,551 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-09-10 06:43:00,928 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-10 06:43:01,380 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-10 06:43:01,772 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2019-09-10 06:43:02,138 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2019-09-10 06:43:02,588 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2019-09-10 06:43:02,959 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 06:43:03,341 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 06:43:03,893 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2019-09-10 06:43:05,769 WARN L188 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-10 06:43:06,256 WARN L188 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-10 06:43:06,586 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 06:43:06,813 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 06:43:07,175 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 06:43:07,598 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 06:43:07,829 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2019-09-10 06:43:08,083 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2019-09-10 06:43:08,334 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 06:43:08,602 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 06:43:08,856 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 06:43:09,125 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-10 06:43:09,349 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 06:43:09,635 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 06:43:09,952 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-10 06:43:10,236 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 06:43:10,535 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 06:43:10,803 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 06:43:11,079 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 06:43:11,345 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-10 06:43:11,750 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2019-09-10 06:43:12,154 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-09-10 06:43:12,347 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-10 06:43:12,724 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-09-10 06:43:13,064 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-10 06:43:13,296 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-09-10 06:43:13,805 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-10 06:43:14,210 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-10 06:43:16,539 WARN L188 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-10 06:43:16,835 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-10 06:43:17,344 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-10 06:43:17,600 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2019-09-10 06:43:17,816 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2019-09-10 06:43:18,108 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 06:43:18,401 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2019-09-10 06:43:18,648 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-10 06:43:18,935 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2019-09-10 06:43:19,179 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-10 06:43:19,438 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2019-09-10 06:43:19,670 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-10 06:43:19,886 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 06:43:20,099 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 06:43:20,353 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2019-09-10 06:43:20,950 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-10 06:43:21,290 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 06:43:21,720 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 06:43:22,022 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-10 06:43:22,335 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2019-09-10 06:43:22,556 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-10 06:43:22,779 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-10 06:43:23,001 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-10 06:43:23,229 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-10 06:43:23,566 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2019-09-10 06:43:23,980 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2019-09-10 06:43:24,280 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 06:43:24,549 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2019-09-10 06:43:24,848 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 06:43:25,117 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-10 06:43:25,422 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 06:43:25,780 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-10 06:43:25,971 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 06:43:26,305 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 06:43:26,738 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-10 06:43:26,988 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2019-09-10 06:43:27,678 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2019-09-10 06:43:27,900 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 06:43:28,197 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 06:43:28,425 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-10 06:43:28,773 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-10 06:43:29,024 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-10 06:43:29,188 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-10 06:43:29,460 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 06:43:29,720 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 06:43:29,959 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 06:43:30,133 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-10 06:43:30,492 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-10 06:43:30,655 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-10 06:43:31,086 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2019-09-10 06:43:31,440 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2019-09-10 06:43:31,746 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 06:43:32,033 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 06:43:32,307 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 06:43:32,567 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 06:43:32,792 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-10 06:43:33,052 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-10 06:43:33,287 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 06:43:33,839 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-10 06:43:34,076 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-10 06:43:34,289 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-10 06:43:34,645 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2019-09-10 06:43:34,905 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-09-10 06:43:35,139 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 06:43:35,396 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 06:43:35,606 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 06:43:36,253 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2019-09-10 06:43:36,515 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2019-09-10 06:43:36,672 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-10 06:43:36,915 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2019-09-10 06:43:37,223 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-10 06:43:37,600 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 06:43:37,909 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 06:43:38,334 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-10 06:43:38,610 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-10 06:43:38,827 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-10 06:43:39,051 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-10 06:43:39,320 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-10 06:43:39,497 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-10 06:43:39,753 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-10 06:43:40,103 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 06:43:40,352 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 06:43:40,580 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 06:43:40,788 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-10 06:43:41,192 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 06:43:41,693 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 06:43:41,998 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-10 06:43:42,189 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-09-10 06:43:42,405 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 06:43:42,622 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-10 06:43:42,977 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 06:43:43,285 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 06:43:43,591 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 06:43:43,871 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2019-09-10 06:43:44,218 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 06:43:44,526 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 06:43:44,878 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2019-09-10 06:43:45,143 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 06:43:45,700 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 06:43:46,064 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-10 06:43:46,323 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2019-09-10 06:43:46,501 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 06:43:46,731 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-10 06:43:46,980 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2019-09-10 06:43:47,207 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2019-09-10 06:43:47,613 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-10 06:43:47,833 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2019-09-10 06:43:48,123 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 06:43:48,375 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 06:43:48,618 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-10 06:43:48,830 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-10 06:43:49,072 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2019-09-10 06:43:49,300 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2019-09-10 06:43:49,672 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2019-09-10 06:43:49,921 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 06:43:50,275 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 06:43:50,636 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-10 06:43:51,004 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-10 06:43:51,257 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-09-10 06:43:51,508 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-10 06:43:51,743 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-10 06:43:52,159 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 06:43:52,328 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-10 06:43:52,647 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2019-09-10 06:43:52,900 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 06:43:53,306 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 06:43:53,643 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-09-10 06:43:53,897 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 06:43:54,181 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 06:43:54,419 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 06:43:54,660 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2019-09-10 06:43:54,965 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 06:43:55,230 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2019-09-10 06:43:55,523 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 06:43:55,766 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-10 06:43:56,015 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 06:43:56,282 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2019-09-10 06:43:56,529 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 06:43:56,777 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 06:43:57,099 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2019-09-10 06:43:57,339 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2019-09-10 06:43:57,518 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2019-09-10 06:43:57,731 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-10 06:43:57,946 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-10 06:43:58,343 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 06:43:58,603 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 06:43:58,856 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 06:43:59,082 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 06:43:59,262 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 06:43:59,498 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 06:43:59,758 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-10 06:43:59,953 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-10 06:44:00,189 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-10 06:44:00,408 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2019-09-10 06:44:00,795 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-10 06:44:01,096 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 06:44:01,368 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 06:44:01,647 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 06:44:01,986 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 06:44:02,285 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 06:44:02,542 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2019-09-10 06:44:02,876 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-10 06:44:03,145 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-09-10 06:44:03,400 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 06:44:03,564 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 06:44:03,921 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 06:44:04,244 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 06:44:04,519 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 06:44:04,761 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-10 06:44:05,056 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 06:44:05,266 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 06:44:05,676 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 06:44:05,831 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-10 06:44:06,135 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2019-09-10 06:44:06,323 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-10 06:44:06,499 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-10 06:44:06,742 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 06:44:07,184 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-10 06:44:07,738 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-10 06:44:07,979 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-10 06:44:08,148 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-10 06:44:08,476 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-10 06:44:08,946 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2019-09-10 06:44:09,210 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2019-09-10 06:44:09,540 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-09-10 06:44:09,815 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 06:44:10,121 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 06:44:10,351 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 06:44:10,891 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 06:44:11,266 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-10 06:44:11,534 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 06:44:11,783 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 06:44:12,166 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-10 06:44:12,345 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-10 06:44:12,612 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 06:44:12,871 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-10 06:44:13,127 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 06:44:13,389 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 06:44:13,592 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-10 06:44:13,796 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-10 06:44:13,993 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-10 06:44:14,177 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-10 06:44:14,734 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2019-09-10 06:44:15,015 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 06:44:15,446 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2019-09-10 06:44:15,743 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 06:44:16,050 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 06:44:16,320 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 06:44:16,573 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 06:44:16,837 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 06:44:17,112 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-10 06:44:17,361 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-10 06:44:17,645 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-10 06:44:18,086 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-10 06:44:18,328 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 06:44:18,694 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-09-10 06:44:18,887 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-09-10 06:44:19,049 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-10 06:44:19,647 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 06:44:19,943 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 06:44:20,365 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 06:44:20,659 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 06:44:20,974 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 06:44:21,297 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 06:44:21,544 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 06:44:21,814 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 06:44:22,089 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 06:44:22,385 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2019-09-10 06:44:22,756 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 06:44:23,161 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-10 06:44:23,377 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-10 06:44:23,559 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-10 06:44:23,978 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2019-09-10 06:44:24,302 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 06:44:24,602 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 06:44:24,949 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 06:44:25,225 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 06:44:25,514 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 06:44:25,798 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2019-09-10 06:44:26,109 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2019-09-10 06:44:26,347 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 06:44:26,608 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2019-09-10 06:44:27,094 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-09-10 06:44:27,388 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 06:44:27,679 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-09-10 06:44:28,112 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 06:44:28,489 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 06:44:28,736 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-10 06:44:29,078 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2019-09-10 06:44:29,364 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 06:44:29,660 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 06:44:29,961 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 06:44:30,891 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 06:44:31,191 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 06:44:31,448 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2019-09-10 06:44:31,730 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 06:44:31,931 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-10 06:44:32,790 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 06:44:33,084 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 06:44:33,327 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-10 06:44:33,536 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-09-10 06:44:33,737 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2019-09-10 06:44:33,970 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2019-09-10 06:44:34,299 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2019-09-10 06:44:34,620 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2019-09-10 06:44:35,412 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 06:44:35,880 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-09-10 06:44:36,235 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 06:44:36,580 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 06:44:36,820 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-10 06:44:37,188 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 06:44:37,493 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 06:44:37,745 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-09-10 06:44:38,220 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 06:44:38,467 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-10 06:44:38,712 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 06:44:38,962 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2019-09-10 06:44:39,291 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-09-10 06:44:39,848 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 06:44:40,132 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-10 06:44:40,357 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 06:44:40,647 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-10 06:44:40,850 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 06:44:41,423 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-10 06:44:41,721 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2019-09-10 06:44:41,975 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 06:44:42,330 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-10 06:44:42,767 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-09-10 06:44:43,094 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2019-09-10 06:44:43,448 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 06:44:43,767 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2019-09-10 06:44:44,675 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 06:44:45,071 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2019-09-10 06:44:45,260 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-09-10 06:44:45,447 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2019-09-10 06:44:45,851 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-10 06:44:46,425 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-10 06:44:46,706 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-10 06:44:46,987 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 06:44:47,219 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2019-09-10 06:44:47,523 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-09-10 06:44:48,019 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2019-09-10 06:44:48,211 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2019-09-10 06:44:48,540 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-10 06:44:48,898 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-10 06:44:49,096 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-09-10 06:44:49,309 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2019-09-10 06:44:49,523 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-10 06:44:49,976 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 06:44:50,299 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-10 06:44:50,541 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-10 06:44:50,867 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2019-09-10 06:44:51,080 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-10 06:44:51,282 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-09-10 06:44:51,569 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-10 06:44:51,808 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 06:44:52,161 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2019-09-10 06:44:52,423 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-09-10 06:44:52,716 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 06:44:52,971 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 06:44:53,224 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 06:44:53,481 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-10 06:44:54,091 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2019-09-10 06:44:54,346 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 06:44:54,601 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 06:44:55,004 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-10 06:44:55,490 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 06:44:55,858 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-10 06:44:56,113 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 06:44:56,381 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 06:44:56,642 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 06:44:57,025 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 06:44:57,466 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 06:44:57,717 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-10 06:44:57,966 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 06:44:58,347 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-09-10 06:44:58,815 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2019-09-10 06:44:59,174 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-10 06:44:59,455 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-10 06:44:59,693 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-10 06:44:59,934 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2019-09-10 06:45:00,231 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-10 06:45:00,453 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2019-09-10 06:45:00,764 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 06:45:01,052 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 06:45:01,831 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2019-09-10 06:45:02,159 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-10 06:45:02,409 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 06:45:02,663 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-10 06:45:02,969 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-10 06:45:03,137 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2019-09-10 06:45:03,443 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 06:45:03,696 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-09-10 06:45:03,906 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2019-09-10 06:45:04,153 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2019-09-10 06:45:04,367 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-10 06:45:04,562 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-10 06:45:04,922 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-09-10 06:45:05,130 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2019-09-10 06:45:05,568 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 06:45:05,830 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 06:45:06,096 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-10 06:45:06,382 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 06:45:06,679 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2019-09-10 06:45:06,951 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-10 06:45:07,394 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-10 06:45:07,656 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2019-09-10 06:45:08,037 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-09-10 06:45:08,456 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 06:45:08,733 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-10 06:45:08,947 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-09-10 06:45:09,436 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2019-09-10 06:45:09,790 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 06:45:09,980 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-09-10 06:45:10,402 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-09-10 06:45:10,708 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-09-10 06:45:10,962 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2019-09-10 06:45:11,353 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 06:45:11,605 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-10 06:45:11,956 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-10 06:45:12,508 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 06:45:12,882 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 06:45:13,150 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 06:45:13,705 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 06:45:14,041 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 06:45:14,256 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-09-10 06:45:14,543 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 06:45:14,849 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2019-09-10 06:45:15,285 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 06:45:15,567 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 06:45:15,944 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-10 06:45:16,306 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 06:45:16,737 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 06:45:17,154 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 06:45:17,522 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 06:45:17,807 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 06:45:17,993 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 06:45:18,289 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 06:45:18,849 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 06:45:19,330 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 06:45:20,109 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-10 06:45:20,658 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 06:45:21,122 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 06:45:21,337 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-10 06:45:21,782 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 06:45:22,053 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-10 06:45:22,473 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-10 06:45:22,859 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 06:45:23,107 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-10 06:45:23,608 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 06:45:23,956 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2019-09-10 06:45:24,348 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-10 06:45:24,668 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 06:45:25,459 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2019-09-10 06:45:25,739 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-10 06:45:26,136 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2019-09-10 06:45:26,397 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 06:45:27,096 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2019-09-10 06:45:28,224 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 06:45:28,472 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 06:45:29,522 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-10 06:45:29,881 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2019-09-10 06:45:34,737 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2019-09-10 06:45:35,211 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2019-09-10 06:45:36,025 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2019-09-10 06:45:36,505 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2019-09-10 06:45:37,253 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2019-09-10 06:45:37,442 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2019-09-10 06:45:37,818 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2019-09-10 06:45:38,025 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2019-09-10 06:45:38,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:45:38,835 INFO L93 Difference]: Finished difference Result 917811 states and 1179773 transitions. [2019-09-10 06:45:38,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 806 states. [2019-09-10 06:45:38,836 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 75 [2019-09-10 06:45:38,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:45:40,156 INFO L225 Difference]: With dead ends: 917811 [2019-09-10 06:45:40,157 INFO L226 Difference]: Without dead ends: 917811 [2019-09-10 06:45:46,050 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 964 GetRequests, 119 SyntacticMatches, 15 SemanticMatches, 830 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353018 ImplicationChecksByTransitivity, 206.8s TimeCoverageRelationStatistics Valid=65978, Invalid=625414, Unknown=0, NotChecked=0, Total=691392 [2019-09-10 06:45:46,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917811 states. [2019-09-10 06:45:53,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917811 to 258060. [2019-09-10 06:45:53,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258060 states. [2019-09-10 06:45:54,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258060 states to 258060 states and 337187 transitions. [2019-09-10 06:45:54,097 INFO L78 Accepts]: Start accepts. Automaton has 258060 states and 337187 transitions. Word has length 75 [2019-09-10 06:45:54,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:45:54,097 INFO L475 AbstractCegarLoop]: Abstraction has 258060 states and 337187 transitions. [2019-09-10 06:45:54,097 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-10 06:45:54,097 INFO L276 IsEmpty]: Start isEmpty. Operand 258060 states and 337187 transitions. [2019-09-10 06:45:54,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-09-10 06:45:54,103 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:45:54,103 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 06:45:54,103 INFO L418 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:45:54,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:45:54,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1032395585, now seen corresponding path program 1 times [2019-09-10 06:45:54,104 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:45:54,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:45:54,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:45:54,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:45:54,105 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:45:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:45:54,934 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:45:54,935 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:45:54,935 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:45:54,935 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 78 with the following transitions: [2019-09-10 06:45:54,935 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [56], [59], [64], [67], [70], [75], [77], [80], [83], [86], [89], [91], [93], [96], [99], [102], [107], [109], [112], [115], [117], [120], [121], [123], [132], [134], [137], [145], [148], [151], [154], [156], [158], [198], [201], [204], [207], [209], [211], [240], [243], [251], [253], [256], [259], [262], [264], [266], [314], [315], [319], [320], [321] [2019-09-10 06:45:54,938 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 06:45:54,938 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 06:45:54,945 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 06:45:55,129 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 06:45:55,129 INFO L272 AbstractInterpreter]: Visited 72 different actions 494 times. Merged at 48 different actions 379 times. Widened at 15 different actions 56 times. Performed 1491 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1491 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 39 fixpoints after 17 different actions. Largest state had 96 variables. [2019-09-10 06:45:55,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:45:55,130 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 06:45:55,130 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:45:55,130 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) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 06:45:55,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:45:55,147 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 06:45:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:45:55,224 INFO L256 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 23 conjunts are in the unsatisfiable core [2019-09-10 06:45:55,228 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 06:45:55,445 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:45:55,764 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:45:55,764 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 06:45:56,323 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:45:56,333 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 06:45:56,333 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 13] total 39 [2019-09-10 06:45:56,334 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 06:45:56,334 INFO L454 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-09-10 06:45:56,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-09-10 06:45:56,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1360, Unknown=0, NotChecked=0, Total=1482 [2019-09-10 06:45:56,335 INFO L87 Difference]: Start difference. First operand 258060 states and 337187 transitions. Second operand 28 states. [2019-09-10 06:45:59,583 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2019-09-10 06:45:59,797 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 47 [2019-09-10 06:46:00,205 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 41 [2019-09-10 06:46:00,409 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2019-09-10 06:46:00,644 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 52 [2019-09-10 06:46:00,904 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 58 [2019-09-10 06:46:01,326 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 59 [2019-09-10 06:46:01,703 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2019-09-10 06:46:02,625 WARN L188 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2019-09-10 06:46:02,942 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 70 [2019-09-10 06:46:04,518 WARN L188 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 112 DAG size of output: 78 [2019-09-10 06:46:04,782 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2019-09-10 06:46:04,995 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2019-09-10 06:46:05,264 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 65 [2019-09-10 06:46:05,451 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 45 [2019-09-10 06:46:05,698 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2019-09-10 06:46:05,989 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2019-09-10 06:46:06,362 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 65 [2019-09-10 06:46:06,640 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 56 [2019-09-10 06:46:07,052 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 52 [2019-09-10 06:46:07,216 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-09-10 06:46:07,929 WARN L188 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2019-09-10 06:46:08,215 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2019-09-10 06:46:08,429 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 48 [2019-09-10 06:46:08,581 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-10 06:46:08,762 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 39 [2019-09-10 06:46:09,036 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2019-09-10 06:46:09,223 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-10 06:46:09,482 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 58 [2019-09-10 06:46:09,679 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2019-09-10 06:46:09,997 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2019-09-10 06:46:10,187 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2019-09-10 06:46:10,823 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2019-09-10 06:46:11,044 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2019-09-10 06:46:11,277 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 65 [2019-09-10 06:46:11,568 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2019-09-10 06:46:11,809 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 48 [2019-09-10 06:46:12,002 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 41 [2019-09-10 06:46:12,213 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-10 06:46:12,495 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2019-09-10 06:46:12,797 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2019-09-10 06:46:13,119 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2019-09-10 06:46:13,429 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2019-09-10 06:46:13,600 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-10 06:46:13,883 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 58 [2019-09-10 06:46:14,070 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 42 [2019-09-10 06:46:15,538 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2019-09-10 06:46:15,787 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2019-09-10 06:46:15,946 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2019-09-10 06:46:16,262 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2019-09-10 06:46:16,541 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 54 [2019-09-10 06:46:16,820 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2019-09-10 06:46:17,128 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2019-09-10 06:46:17,510 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2019-09-10 06:46:17,789 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2019-09-10 06:46:18,088 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2019-09-10 06:46:18,302 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2019-09-10 06:46:18,535 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2019-09-10 06:46:18,826 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2019-09-10 06:46:19,132 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 62 [2019-09-10 06:46:19,977 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2019-09-10 06:46:20,175 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2019-09-10 06:46:20,501 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2019-09-10 06:46:20,760 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 54 [2019-09-10 06:46:21,136 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2019-09-10 06:46:21,329 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2019-09-10 06:46:21,684 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 58 [2019-09-10 06:46:22,053 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2019-09-10 06:46:22,279 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 46 [2019-09-10 06:46:22,582 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2019-09-10 06:46:22,912 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-10 06:46:23,135 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2019-09-10 06:46:23,394 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2019-09-10 06:46:23,856 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 62 [2019-09-10 06:46:24,091 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2019-09-10 06:46:24,660 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2019-09-10 06:46:24,969 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2019-09-10 06:46:26,088 WARN L188 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2019-09-10 06:46:26,390 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2019-09-10 06:46:26,760 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 69 [2019-09-10 06:46:26,973 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2019-09-10 06:46:27,293 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 54 [2019-09-10 06:46:27,623 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 66 [2019-09-10 06:46:27,973 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2019-09-10 06:46:28,467 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 74 [2019-09-10 06:46:28,782 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 58 [2019-09-10 06:46:29,105 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 70 [2019-09-10 06:46:29,473 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 71 [2019-09-10 06:46:29,675 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2019-09-10 06:46:30,067 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 83 [2019-09-10 06:46:30,638 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2019-09-10 06:46:30,929 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 06:46:31,167 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-10 06:46:31,312 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-09-10 06:46:31,726 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 78 [2019-09-10 06:46:32,200 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 90 [2019-09-10 06:46:32,883 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2019-09-10 06:46:33,063 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2019-09-10 06:46:33,433 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 63 [2019-09-10 06:46:33,632 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2019-09-10 06:46:36,587 WARN L188 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 06:46:37,047 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2019-09-10 06:46:37,344 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2019-09-10 06:46:38,002 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2019-09-10 06:46:38,522 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-10 06:46:38,685 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 37 [2019-09-10 06:46:38,972 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2019-09-10 06:46:40,519 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 48 [2019-09-10 06:46:41,039 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2019-09-10 06:46:41,257 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 44 [2019-09-10 06:46:41,466 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 43 [2019-09-10 06:46:41,701 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2019-09-10 06:46:41,928 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 46 [2019-09-10 06:46:42,256 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2019-09-10 06:46:42,661 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2019-09-10 06:46:43,077 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 50 [2019-09-10 06:46:43,243 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2019-09-10 06:46:43,546 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2019-09-10 06:46:43,877 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2019-09-10 06:46:44,279 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2019-09-10 06:46:45,210 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2019-09-10 06:46:45,398 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2019-09-10 06:46:45,576 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 44 [2019-09-10 06:46:45,974 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 62 [2019-09-10 06:46:46,232 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2019-09-10 06:46:47,114 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2019-09-10 06:46:47,743 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2019-09-10 06:46:47,908 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2019-09-10 06:46:48,187 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2019-09-10 06:46:48,547 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 46 [2019-09-10 06:46:48,898 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 46 [2019-09-10 06:46:49,072 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2019-09-10 06:46:49,444 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2019-09-10 06:46:49,603 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2019-09-10 06:46:49,842 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 57 [2019-09-10 06:46:50,015 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-10 06:46:50,701 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2019-09-10 06:46:50,966 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 55 [2019-09-10 06:46:51,220 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 54 [2019-09-10 06:46:51,434 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2019-09-10 06:46:51,610 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2019-09-10 06:46:51,847 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 53 [2019-09-10 06:46:52,020 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2019-09-10 06:46:52,353 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2019-09-10 06:46:52,598 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2019-09-10 06:46:52,861 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2019-09-10 06:46:53,002 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 39 [2019-09-10 06:46:53,326 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 58 [2019-09-10 06:46:53,600 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 62 [2019-09-10 06:46:53,796 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 50 [2019-09-10 06:46:54,022 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2019-09-10 06:46:54,257 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2019-09-10 06:46:54,481 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 55 [2019-09-10 06:46:54,699 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 53 [2019-09-10 06:46:55,071 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 50 [2019-09-10 06:46:55,573 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2019-09-10 06:46:55,813 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2019-09-10 06:46:56,150 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 46 [2019-09-10 06:46:56,473 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 58 [2019-09-10 06:46:56,666 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 42 [2019-09-10 06:46:57,056 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2019-09-10 06:46:57,297 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2019-09-10 06:46:57,836 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 62 [2019-09-10 06:46:58,267 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 66 [2019-09-10 06:46:58,561 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2019-09-10 06:46:58,827 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 65 [2019-09-10 06:46:59,163 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 64 [2019-09-10 06:46:59,471 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2019-09-10 06:46:59,642 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2019-09-10 06:47:00,243 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2019-09-10 06:47:00,682 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-10 06:47:00,858 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-09-10 06:47:01,087 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2019-09-10 06:47:01,367 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2019-09-10 06:47:01,583 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2019-09-10 06:47:02,558 WARN L188 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-09-10 06:47:02,969 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2019-09-10 06:47:03,279 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 62 [2019-09-10 06:47:03,442 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2019-09-10 06:47:03,702 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 58 [2019-09-10 06:47:04,181 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 82 [2019-09-10 06:47:04,504 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 69 [2019-09-10 06:47:05,029 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 79 [2019-09-10 06:47:05,197 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2019-09-10 06:47:06,113 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 86 [2019-09-10 06:47:06,367 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2019-09-10 06:47:07,150 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 70 [2019-09-10 06:47:07,430 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 52 [2019-09-10 06:47:07,887 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 78 [2019-09-10 06:47:08,202 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2019-09-10 06:47:08,382 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 46 [2019-09-10 06:47:08,578 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 46 [2019-09-10 06:47:08,880 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2019-09-10 06:47:09,551 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2019-09-10 06:47:09,711 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2019-09-10 06:47:09,960 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 50 [2019-09-10 06:47:10,171 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2019-09-10 06:47:10,557 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 46 [2019-09-10 06:47:12,207 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-10 06:47:12,711 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2019-09-10 06:47:13,373 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-10 06:47:14,013 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-10 06:47:14,551 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2019-09-10 06:47:14,739 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-10 06:47:15,343 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2019-09-10 06:47:15,583 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-09-10 06:47:16,146 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 71 [2019-09-10 06:47:16,387 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-10 06:47:16,609 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2019-09-10 06:47:16,961 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-10 06:47:17,214 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2019-09-10 06:47:17,391 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2019-09-10 06:47:17,608 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2019-09-10 06:47:17,798 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 06:47:18,068 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-10 06:47:18,760 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-09-10 06:47:18,967 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-09-10 06:47:19,328 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2019-09-10 06:47:19,600 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2019-09-10 06:47:20,055 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 06:47:20,498 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-10 06:47:20,772 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 65 [2019-09-10 06:47:21,161 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2019-09-10 06:47:21,419 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2019-09-10 06:47:21,835 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 68 [2019-09-10 06:47:22,161 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2019-09-10 06:47:22,517 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 75 [2019-09-10 06:47:22,812 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2019-09-10 06:47:22,990 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2019-09-10 06:47:23,250 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2019-09-10 06:47:23,742 WARN L188 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2019-09-10 06:47:24,247 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2019-09-10 06:47:24,405 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2019-09-10 06:47:24,728 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 79 [2019-09-10 06:47:24,995 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2019-09-10 06:47:25,431 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 86 [2019-09-10 06:47:25,619 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2019-09-10 06:47:26,012 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2019-09-10 06:47:26,169 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2019-09-10 06:47:26,494 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-10 06:47:27,432 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2019-09-10 06:47:28,098 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 49 [2019-09-10 06:47:28,488 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 39 [2019-09-10 06:47:29,113 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 50 [2019-09-10 06:47:29,388 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2019-09-10 06:47:31,854 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2019-09-10 06:47:33,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:47:33,237 INFO L93 Difference]: Finished difference Result 921844 states and 1193905 transitions. [2019-09-10 06:47:33,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 387 states. [2019-09-10 06:47:33,237 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 77 [2019-09-10 06:47:33,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:47:34,525 INFO L225 Difference]: With dead ends: 921844 [2019-09-10 06:47:34,525 INFO L226 Difference]: Without dead ends: 921844 [2019-09-10 06:47:34,530 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 412 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73944 ImplicationChecksByTransitivity, 76.6s TimeCoverageRelationStatistics Valid=20005, Invalid=150977, Unknown=0, NotChecked=0, Total=170982 [2019-09-10 06:47:35,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921844 states. [2019-09-10 06:47:49,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921844 to 353253. [2019-09-10 06:47:49,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353253 states. [2019-09-10 06:47:50,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353253 states to 353253 states and 463800 transitions. [2019-09-10 06:47:50,715 INFO L78 Accepts]: Start accepts. Automaton has 353253 states and 463800 transitions. Word has length 77 [2019-09-10 06:47:50,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:47:50,715 INFO L475 AbstractCegarLoop]: Abstraction has 353253 states and 463800 transitions. [2019-09-10 06:47:50,715 INFO L476 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-09-10 06:47:50,716 INFO L276 IsEmpty]: Start isEmpty. Operand 353253 states and 463800 transitions. [2019-09-10 06:47:50,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-10 06:47:50,733 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:47:50,733 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:47:50,733 INFO L418 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:47:50,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:47:50,734 INFO L82 PathProgramCache]: Analyzing trace with hash -146724755, now seen corresponding path program 2 times [2019-09-10 06:47:50,734 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:47:50,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:47:50,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:47:50,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:47:50,735 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:47:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:47:50,809 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 36 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:47:50,810 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:47:50,810 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:47:50,810 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 06:47:50,810 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 06:47:50,810 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:47:50,810 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 06:47:50,829 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-10 06:47:50,829 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-09-10 06:47:50,926 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-09-10 06:47:50,927 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 06:47:50,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 27 conjunts are in the unsatisfiable core [2019-09-10 06:47:50,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 06:47:51,293 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 21 proven. 11 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-09-10 06:47:51,293 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 06:47:51,785 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-09-10 06:47:51,788 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 06:47:51,789 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 12, 15] total 28 [2019-09-10 06:47:51,789 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 06:47:51,789 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-10 06:47:51,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-10 06:47:51,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=654, Unknown=0, NotChecked=0, Total=756 [2019-09-10 06:47:51,790 INFO L87 Difference]: Start difference. First operand 353253 states and 463800 transitions. Second operand 15 states. [2019-09-10 06:48:00,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:48:00,275 INFO L93 Difference]: Finished difference Result 807088 states and 1035164 transitions. [2019-09-10 06:48:00,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2019-09-10 06:48:00,275 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 103 [2019-09-10 06:48:00,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:48:01,367 INFO L225 Difference]: With dead ends: 807088 [2019-09-10 06:48:01,368 INFO L226 Difference]: Without dead ends: 807088 [2019-09-10 06:48:01,368 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 228 SyntacticMatches, 2 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3995 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=2526, Invalid=10356, Unknown=0, NotChecked=0, Total=12882 [2019-09-10 06:48:09,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807088 states. [2019-09-10 06:48:14,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807088 to 324293. [2019-09-10 06:48:14,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324293 states. [2019-09-10 06:48:15,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324293 states to 324293 states and 424916 transitions. [2019-09-10 06:48:15,056 INFO L78 Accepts]: Start accepts. Automaton has 324293 states and 424916 transitions. Word has length 103 [2019-09-10 06:48:15,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:48:15,056 INFO L475 AbstractCegarLoop]: Abstraction has 324293 states and 424916 transitions. [2019-09-10 06:48:15,056 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-10 06:48:15,056 INFO L276 IsEmpty]: Start isEmpty. Operand 324293 states and 424916 transitions. [2019-09-10 06:48:15,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 06:48:15,066 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:48:15,066 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 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 06:48:15,066 INFO L418 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:48:15,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:48:15,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1527377811, now seen corresponding path program 1 times [2019-09-10 06:48:15,067 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:48:15,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:48:15,068 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 06:48:15,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:48:15,068 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:48:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:48:15,279 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 32 proven. 21 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-10 06:48:15,279 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:48:15,279 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:48:15,280 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2019-09-10 06:48:15,280 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [56], [59], [64], [75], [77], [80], [91], [93], [96], [107], [109], [112], [115], [117], [120], [121], [123], [125], [130], [143], [145], [148], [151], [154], [156], [158], [196], [198], [211], [219], [238], [249], [251], [253], [266], [274], [293], [314], [315], [319], [320], [321] [2019-09-10 06:48:15,283 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 06:48:15,283 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 06:48:15,290 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 06:48:15,361 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 06:48:15,361 INFO L272 AbstractInterpreter]: Visited 61 different actions 296 times. Merged at 37 different actions 205 times. Widened at 11 different actions 19 times. Performed 975 root evaluator evaluations with a maximum evaluation depth of 5. Performed 975 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 33 fixpoints after 11 different actions. Largest state had 94 variables. [2019-09-10 06:48:15,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:48:15,362 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 06:48:15,362 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:48:15,362 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 06:48:15,373 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:48:15,373 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 06:48:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:48:15,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 18 conjunts are in the unsatisfiable core [2019-09-10 06:48:15,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 06:48:15,571 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:48:15,709 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 32 proven. 21 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-10 06:48:15,709 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 06:48:15,841 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:48:15,969 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 32 proven. 21 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-10 06:48:15,973 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 06:48:15,974 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2019-09-10 06:48:15,974 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 06:48:15,974 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-10 06:48:15,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-10 06:48:15,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2019-09-10 06:48:15,975 INFO L87 Difference]: Start difference. First operand 324293 states and 424916 transitions. Second operand 18 states. [2019-09-10 06:48:24,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:48:24,333 INFO L93 Difference]: Finished difference Result 884800 states and 1147283 transitions. [2019-09-10 06:48:24,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-09-10 06:48:24,333 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 108 [2019-09-10 06:48:24,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:48:25,654 INFO L225 Difference]: With dead ends: 884800 [2019-09-10 06:48:25,654 INFO L226 Difference]: Without dead ends: 884800 [2019-09-10 06:48:25,655 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 204 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 788 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=787, Invalid=2293, Unknown=0, NotChecked=0, Total=3080 [2019-09-10 06:48:26,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884800 states. [2019-09-10 06:48:39,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884800 to 466921. [2019-09-10 06:48:39,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466921 states. [2019-09-10 06:48:39,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466921 states to 466921 states and 611749 transitions. [2019-09-10 06:48:39,927 INFO L78 Accepts]: Start accepts. Automaton has 466921 states and 611749 transitions. Word has length 108 [2019-09-10 06:48:39,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:48:39,928 INFO L475 AbstractCegarLoop]: Abstraction has 466921 states and 611749 transitions. [2019-09-10 06:48:39,928 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-10 06:48:39,928 INFO L276 IsEmpty]: Start isEmpty. Operand 466921 states and 611749 transitions. [2019-09-10 06:48:39,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 06:48:39,936 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:48:39,936 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2019-09-10 06:48:39,936 INFO L418 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:48:39,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:48:39,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1078148336, now seen corresponding path program 2 times [2019-09-10 06:48:39,937 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:48:39,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:48:39,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:48:39,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:48:39,938 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:48:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:48:40,002 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-10 06:48:40,002 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:48:40,002 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 06:48:40,002 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:48:40,003 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 06:48:40,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 06:48:40,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 06:48:40,003 INFO L87 Difference]: Start difference. First operand 466921 states and 611749 transitions. Second operand 3 states. [2019-09-10 06:48:42,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:48:42,349 INFO L93 Difference]: Finished difference Result 421128 states and 542205 transitions. [2019-09-10 06:48:42,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 06:48:42,349 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2019-09-10 06:48:42,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:48:42,954 INFO L225 Difference]: With dead ends: 421128 [2019-09-10 06:48:42,954 INFO L226 Difference]: Without dead ends: 421128 [2019-09-10 06:48:42,954 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 06:48:43,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421128 states.