java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 07:33:54,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 07:33:54,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 07:33:54,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-10 07:33:54,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 07:33:54,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 07:33:54,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 07:33:54,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 07:33:54,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 07:33:54,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 07:33:54,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 07:33:54,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 07:33:54,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 07:33:54,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 07:33:54,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 07:33:54,140 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 07:33:54,154 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 07:33:54,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 07:33:54,155 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 07:33:54,155 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 07:33:54,156 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 07:33:54,156 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 07:33:54,156 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 07:33:54,156 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 07:33:54,157 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 07:33:54,157 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 07:33:54,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 07:33:54,158 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 07:33:54,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 07:33:54,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 07:33:54,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 07:33:54,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 07:33:54,159 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 07:33:54,159 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 07:33:54,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 07:33:54,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 07:33:54,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 07:33:54,160 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 07:33:54,160 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 07:33:54,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 07:33:54,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 07:33:54,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 07:33:54,161 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 07:33:54,161 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 07:33:54,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 07:33:54,161 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 07:33:54,189 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 07:33:54,201 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 07:33:54,204 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 07:33:54,206 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 07:33:54,206 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 07:33:54,207 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2019-09-10 07:33:54,266 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da11d6835/64dba723fd2a4369a550e72d734cf047/FLAG2736363b8 [2019-09-10 07:33:54,748 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 07:33:54,749 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2019-09-10 07:33:54,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da11d6835/64dba723fd2a4369a550e72d734cf047/FLAG2736363b8 [2019-09-10 07:33:55,094 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da11d6835/64dba723fd2a4369a550e72d734cf047 [2019-09-10 07:33:55,104 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 07:33:55,105 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 07:33:55,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 07:33:55,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 07:33:55,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 07:33:55,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 07:33:55" (1/1) ... [2019-09-10 07:33:55,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f59ac88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:33:55, skipping insertion in model container [2019-09-10 07:33:55,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 07:33:55" (1/1) ... [2019-09-10 07:33:55,121 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 07:33:55,181 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 07:33:55,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 07:33:55,550 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 07:33:55,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 07:33:55,683 INFO L192 MainTranslator]: Completed translation [2019-09-10 07:33:55,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:33:55 WrapperNode [2019-09-10 07:33:55,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 07:33:55,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 07:33:55,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 07:33:55,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 07:33:55,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:33:55" (1/1) ... [2019-09-10 07:33:55,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:33:55" (1/1) ... [2019-09-10 07:33:55,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:33:55" (1/1) ... [2019-09-10 07:33:55,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:33:55" (1/1) ... [2019-09-10 07:33:55,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:33:55" (1/1) ... [2019-09-10 07:33:55,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:33:55" (1/1) ... [2019-09-10 07:33:55,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:33:55" (1/1) ... [2019-09-10 07:33:55,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 07:33:55,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 07:33:55,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 07:33:55,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 07:33:55,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:33:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 07:33:55,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 07:33:55,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 07:33:55,805 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 07:33:55,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 07:33:55,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-10 07:33:55,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-10 07:33:55,805 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-10 07:33:55,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 07:33:55,805 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-10 07:33:55,805 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-10 07:33:55,806 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-10 07:33:55,806 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-10 07:33:55,806 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-10 07:33:55,806 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-10 07:33:55,806 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-10 07:33:55,807 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 07:33:55,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 07:33:55,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 07:33:56,498 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 07:33:56,498 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 07:33:56,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 07:33:56 BoogieIcfgContainer [2019-09-10 07:33:56,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 07:33:56,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 07:33:56,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 07:33:56,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 07:33:56,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 07:33:55" (1/3) ... [2019-09-10 07:33:56,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f4bdb15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 07:33:56, skipping insertion in model container [2019-09-10 07:33:56,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:33:55" (2/3) ... [2019-09-10 07:33:56,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f4bdb15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 07:33:56, skipping insertion in model container [2019-09-10 07:33:56,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 07:33:56" (3/3) ... [2019-09-10 07:33:56,508 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2019-09-10 07:33:56,519 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 07:33:56,528 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-09-10 07:33:56,545 INFO L252 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-09-10 07:33:56,573 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 07:33:56,574 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 07:33:56,574 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 07:33:56,574 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 07:33:56,574 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 07:33:56,575 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 07:33:56,575 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 07:33:56,575 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 07:33:56,595 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2019-09-10 07:33:56,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 07:33:56,607 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:56,608 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:56,611 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:56,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:56,617 INFO L82 PathProgramCache]: Analyzing trace with hash -304932933, now seen corresponding path program 1 times [2019-09-10 07:33:56,619 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:56,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:56,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:56,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:56,673 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:56,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:56,967 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:56,968 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:33:56,968 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:56,974 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:33:56,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:33:56,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:33:56,989 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 3 states. [2019-09-10 07:33:57,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:57,141 INFO L93 Difference]: Finished difference Result 165 states and 264 transitions. [2019-09-10 07:33:57,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:33:57,143 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-10 07:33:57,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:57,157 INFO L225 Difference]: With dead ends: 165 [2019-09-10 07:33:57,157 INFO L226 Difference]: Without dead ends: 157 [2019-09-10 07:33:57,159 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:33:57,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-09-10 07:33:57,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 155. [2019-09-10 07:33:57,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-09-10 07:33:57,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 216 transitions. [2019-09-10 07:33:57,212 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 216 transitions. Word has length 52 [2019-09-10 07:33:57,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:57,213 INFO L475 AbstractCegarLoop]: Abstraction has 155 states and 216 transitions. [2019-09-10 07:33:57,213 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:33:57,213 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 216 transitions. [2019-09-10 07:33:57,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-09-10 07:33:57,215 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:57,236 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:57,236 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:57,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:57,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1031148298, now seen corresponding path program 1 times [2019-09-10 07:33:57,237 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:57,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:57,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:57,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:57,241 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:57,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:57,405 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:57,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:33:57,405 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:57,407 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:33:57,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:33:57,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:33:57,407 INFO L87 Difference]: Start difference. First operand 155 states and 216 transitions. Second operand 3 states. [2019-09-10 07:33:57,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:57,469 INFO L93 Difference]: Finished difference Result 199 states and 280 transitions. [2019-09-10 07:33:57,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:33:57,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-09-10 07:33:57,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:57,472 INFO L225 Difference]: With dead ends: 199 [2019-09-10 07:33:57,472 INFO L226 Difference]: Without dead ends: 199 [2019-09-10 07:33:57,473 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:33:57,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2019-09-10 07:33:57,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 197. [2019-09-10 07:33:57,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2019-09-10 07:33:57,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 279 transitions. [2019-09-10 07:33:57,490 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 279 transitions. Word has length 53 [2019-09-10 07:33:57,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:57,490 INFO L475 AbstractCegarLoop]: Abstraction has 197 states and 279 transitions. [2019-09-10 07:33:57,490 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:33:57,490 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 279 transitions. [2019-09-10 07:33:57,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-09-10 07:33:57,492 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:57,492 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:57,493 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:57,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:57,493 INFO L82 PathProgramCache]: Analyzing trace with hash 337411901, now seen corresponding path program 1 times [2019-09-10 07:33:57,493 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:57,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:57,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:57,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:57,496 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:57,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:57,658 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:57,659 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:33:57,659 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:57,659 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:33:57,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:33:57,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:33:57,660 INFO L87 Difference]: Start difference. First operand 197 states and 279 transitions. Second operand 5 states. [2019-09-10 07:33:57,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:57,840 INFO L93 Difference]: Finished difference Result 197 states and 275 transitions. [2019-09-10 07:33:57,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:33:57,841 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2019-09-10 07:33:57,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:57,843 INFO L225 Difference]: With dead ends: 197 [2019-09-10 07:33:57,844 INFO L226 Difference]: Without dead ends: 197 [2019-09-10 07:33:57,844 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:33:57,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2019-09-10 07:33:57,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2019-09-10 07:33:57,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2019-09-10 07:33:57,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 275 transitions. [2019-09-10 07:33:57,858 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 275 transitions. Word has length 54 [2019-09-10 07:33:57,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:57,859 INFO L475 AbstractCegarLoop]: Abstraction has 197 states and 275 transitions. [2019-09-10 07:33:57,859 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:33:57,859 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 275 transitions. [2019-09-10 07:33:57,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-10 07:33:57,861 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:57,862 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:57,862 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:57,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:57,862 INFO L82 PathProgramCache]: Analyzing trace with hash 357669605, now seen corresponding path program 1 times [2019-09-10 07:33:57,863 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:57,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:57,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:57,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:57,865 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:58,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:58,020 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:58,021 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:33:58,021 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:58,021 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:33:58,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:33:58,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:33:58,022 INFO L87 Difference]: Start difference. First operand 197 states and 275 transitions. Second operand 5 states. [2019-09-10 07:33:58,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:58,157 INFO L93 Difference]: Finished difference Result 197 states and 271 transitions. [2019-09-10 07:33:58,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:33:58,159 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2019-09-10 07:33:58,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:58,160 INFO L225 Difference]: With dead ends: 197 [2019-09-10 07:33:58,161 INFO L226 Difference]: Without dead ends: 197 [2019-09-10 07:33:58,161 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:33:58,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2019-09-10 07:33:58,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2019-09-10 07:33:58,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2019-09-10 07:33:58,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 271 transitions. [2019-09-10 07:33:58,184 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 271 transitions. Word has length 55 [2019-09-10 07:33:58,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:58,185 INFO L475 AbstractCegarLoop]: Abstraction has 197 states and 271 transitions. [2019-09-10 07:33:58,185 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:33:58,185 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 271 transitions. [2019-09-10 07:33:58,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-10 07:33:58,187 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:58,187 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:58,188 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:58,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:58,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1558285795, now seen corresponding path program 1 times [2019-09-10 07:33:58,192 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:58,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:58,193 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:58,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:58,194 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:58,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:58,324 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:58,325 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:33:58,325 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:58,325 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:33:58,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:33:58,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:33:58,326 INFO L87 Difference]: Start difference. First operand 197 states and 271 transitions. Second operand 5 states. [2019-09-10 07:33:58,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:58,470 INFO L93 Difference]: Finished difference Result 197 states and 267 transitions. [2019-09-10 07:33:58,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:33:58,471 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2019-09-10 07:33:58,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:58,472 INFO L225 Difference]: With dead ends: 197 [2019-09-10 07:33:58,473 INFO L226 Difference]: Without dead ends: 197 [2019-09-10 07:33:58,473 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:33:58,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2019-09-10 07:33:58,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2019-09-10 07:33:58,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2019-09-10 07:33:58,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 267 transitions. [2019-09-10 07:33:58,482 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 267 transitions. Word has length 56 [2019-09-10 07:33:58,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:58,487 INFO L475 AbstractCegarLoop]: Abstraction has 197 states and 267 transitions. [2019-09-10 07:33:58,488 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:33:58,488 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 267 transitions. [2019-09-10 07:33:58,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 07:33:58,489 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:58,489 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:58,490 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:58,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:58,490 INFO L82 PathProgramCache]: Analyzing trace with hash -557631818, now seen corresponding path program 1 times [2019-09-10 07:33:58,490 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:58,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:58,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:58,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:58,492 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:58,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:58,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:58,610 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:58,610 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:33:58,611 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:58,611 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:33:58,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:33:58,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:33:58,613 INFO L87 Difference]: Start difference. First operand 197 states and 267 transitions. Second operand 5 states. [2019-09-10 07:33:58,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:58,710 INFO L93 Difference]: Finished difference Result 467 states and 649 transitions. [2019-09-10 07:33:58,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:33:58,711 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2019-09-10 07:33:58,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:58,715 INFO L225 Difference]: With dead ends: 467 [2019-09-10 07:33:58,715 INFO L226 Difference]: Without dead ends: 467 [2019-09-10 07:33:58,715 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:33:58,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2019-09-10 07:33:58,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 283. [2019-09-10 07:33:58,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2019-09-10 07:33:58,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 392 transitions. [2019-09-10 07:33:58,730 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 392 transitions. Word has length 57 [2019-09-10 07:33:58,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:58,732 INFO L475 AbstractCegarLoop]: Abstraction has 283 states and 392 transitions. [2019-09-10 07:33:58,732 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:33:58,732 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 392 transitions. [2019-09-10 07:33:58,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 07:33:58,738 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:58,741 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:58,742 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:58,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:58,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1406729891, now seen corresponding path program 1 times [2019-09-10 07:33:58,749 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:58,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:58,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:58,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:58,752 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:58,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:58,852 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:58,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:33:58,853 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:58,853 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:33:58,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:33:58,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:33:58,855 INFO L87 Difference]: Start difference. First operand 283 states and 392 transitions. Second operand 5 states. [2019-09-10 07:33:58,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:58,989 INFO L93 Difference]: Finished difference Result 563 states and 789 transitions. [2019-09-10 07:33:58,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:33:58,989 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2019-09-10 07:33:58,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:58,993 INFO L225 Difference]: With dead ends: 563 [2019-09-10 07:33:58,994 INFO L226 Difference]: Without dead ends: 563 [2019-09-10 07:33:58,994 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:33:58,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2019-09-10 07:33:59,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 416. [2019-09-10 07:33:59,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2019-09-10 07:33:59,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 585 transitions. [2019-09-10 07:33:59,008 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 585 transitions. Word has length 57 [2019-09-10 07:33:59,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:59,009 INFO L475 AbstractCegarLoop]: Abstraction has 416 states and 585 transitions. [2019-09-10 07:33:59,009 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:33:59,009 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 585 transitions. [2019-09-10 07:33:59,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 07:33:59,011 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:59,011 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:59,012 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:59,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:59,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1122162400, now seen corresponding path program 1 times [2019-09-10 07:33:59,012 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:59,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:59,014 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:59,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:59,014 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:59,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:59,115 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:59,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:33:59,115 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:59,117 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:33:59,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:33:59,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:33:59,117 INFO L87 Difference]: Start difference. First operand 416 states and 585 transitions. Second operand 5 states. [2019-09-10 07:33:59,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:33:59,214 INFO L93 Difference]: Finished difference Result 537 states and 755 transitions. [2019-09-10 07:33:59,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:33:59,215 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2019-09-10 07:33:59,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:33:59,219 INFO L225 Difference]: With dead ends: 537 [2019-09-10 07:33:59,219 INFO L226 Difference]: Without dead ends: 537 [2019-09-10 07:33:59,220 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-09-10 07:33:59,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-09-10 07:33:59,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 463. [2019-09-10 07:33:59,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2019-09-10 07:33:59,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 655 transitions. [2019-09-10 07:33:59,236 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 655 transitions. Word has length 57 [2019-09-10 07:33:59,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:33:59,238 INFO L475 AbstractCegarLoop]: Abstraction has 463 states and 655 transitions. [2019-09-10 07:33:59,239 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:33:59,239 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 655 transitions. [2019-09-10 07:33:59,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-09-10 07:33:59,240 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:33:59,240 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:33:59,240 INFO L418 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:33:59,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:33:59,241 INFO L82 PathProgramCache]: Analyzing trace with hash -274879141, now seen corresponding path program 1 times [2019-09-10 07:33:59,241 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:33:59,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:59,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:33:59,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:33:59,243 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:33:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:33:59,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:33:59,535 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:33:59,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 07:33:59,536 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:33:59,536 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 07:33:59,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 07:33:59,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-10 07:33:59,537 INFO L87 Difference]: Start difference. First operand 463 states and 655 transitions. Second operand 9 states. [2019-09-10 07:34:00,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:00,055 INFO L93 Difference]: Finished difference Result 844 states and 1205 transitions. [2019-09-10 07:34:00,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 07:34:00,055 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 58 [2019-09-10 07:34:00,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:00,061 INFO L225 Difference]: With dead ends: 844 [2019-09-10 07:34:00,061 INFO L226 Difference]: Without dead ends: 844 [2019-09-10 07:34:00,062 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2019-09-10 07:34:00,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2019-09-10 07:34:00,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 463. [2019-09-10 07:34:00,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2019-09-10 07:34:00,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 654 transitions. [2019-09-10 07:34:00,081 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 654 transitions. Word has length 58 [2019-09-10 07:34:00,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:00,081 INFO L475 AbstractCegarLoop]: Abstraction has 463 states and 654 transitions. [2019-09-10 07:34:00,081 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 07:34:00,081 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 654 transitions. [2019-09-10 07:34:00,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-09-10 07:34:00,082 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:00,082 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:00,083 INFO L418 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:00,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:00,083 INFO L82 PathProgramCache]: Analyzing trace with hash -595457999, now seen corresponding path program 1 times [2019-09-10 07:34:00,083 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:00,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:00,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:00,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:00,086 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:00,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:00,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:00,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 07:34:00,303 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:00,304 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 07:34:00,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 07:34:00,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-09-10 07:34:00,308 INFO L87 Difference]: Start difference. First operand 463 states and 654 transitions. Second operand 10 states. [2019-09-10 07:34:01,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:01,093 INFO L93 Difference]: Finished difference Result 881 states and 1249 transitions. [2019-09-10 07:34:01,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-10 07:34:01,094 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2019-09-10 07:34:01,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:01,102 INFO L225 Difference]: With dead ends: 881 [2019-09-10 07:34:01,102 INFO L226 Difference]: Without dead ends: 881 [2019-09-10 07:34:01,103 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2019-09-10 07:34:01,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2019-09-10 07:34:01,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 463. [2019-09-10 07:34:01,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2019-09-10 07:34:01,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 652 transitions. [2019-09-10 07:34:01,126 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 652 transitions. Word has length 58 [2019-09-10 07:34:01,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:01,127 INFO L475 AbstractCegarLoop]: Abstraction has 463 states and 652 transitions. [2019-09-10 07:34:01,127 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 07:34:01,127 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 652 transitions. [2019-09-10 07:34:01,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-10 07:34:01,128 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:01,128 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:01,128 INFO L418 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:01,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:01,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1742248038, now seen corresponding path program 1 times [2019-09-10 07:34:01,129 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:01,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:01,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:01,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:01,131 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:01,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:01,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:01,402 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:01,403 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 07:34:01,403 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:01,404 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 07:34:01,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 07:34:01,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-09-10 07:34:01,405 INFO L87 Difference]: Start difference. First operand 463 states and 652 transitions. Second operand 10 states. [2019-09-10 07:34:02,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:02,195 INFO L93 Difference]: Finished difference Result 872 states and 1231 transitions. [2019-09-10 07:34:02,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-10 07:34:02,196 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 59 [2019-09-10 07:34:02,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:02,202 INFO L225 Difference]: With dead ends: 872 [2019-09-10 07:34:02,202 INFO L226 Difference]: Without dead ends: 872 [2019-09-10 07:34:02,203 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2019-09-10 07:34:02,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2019-09-10 07:34:02,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 463. [2019-09-10 07:34:02,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2019-09-10 07:34:02,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 648 transitions. [2019-09-10 07:34:02,226 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 648 transitions. Word has length 59 [2019-09-10 07:34:02,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:02,227 INFO L475 AbstractCegarLoop]: Abstraction has 463 states and 648 transitions. [2019-09-10 07:34:02,227 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 07:34:02,227 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 648 transitions. [2019-09-10 07:34:02,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-10 07:34:02,228 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:02,228 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:02,228 INFO L418 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:02,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:02,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1512000741, now seen corresponding path program 1 times [2019-09-10 07:34:02,229 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:02,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:02,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:02,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:02,231 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:02,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:02,822 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:02,822 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-09-10 07:34:02,823 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:02,823 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-10 07:34:02,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-10 07:34:02,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-09-10 07:34:02,824 INFO L87 Difference]: Start difference. First operand 463 states and 648 transitions. Second operand 13 states. [2019-09-10 07:34:03,192 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 37 [2019-09-10 07:34:03,384 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2019-09-10 07:34:03,549 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2019-09-10 07:34:03,891 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2019-09-10 07:34:04,101 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2019-09-10 07:34:04,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:04,456 INFO L93 Difference]: Finished difference Result 1594 states and 2282 transitions. [2019-09-10 07:34:04,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 07:34:04,458 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 60 [2019-09-10 07:34:04,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:04,465 INFO L225 Difference]: With dead ends: 1594 [2019-09-10 07:34:04,466 INFO L226 Difference]: Without dead ends: 1594 [2019-09-10 07:34:04,466 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=145, Invalid=455, Unknown=0, NotChecked=0, Total=600 [2019-09-10 07:34:04,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1594 states. [2019-09-10 07:34:04,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1594 to 457. [2019-09-10 07:34:04,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2019-09-10 07:34:04,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 637 transitions. [2019-09-10 07:34:04,496 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 637 transitions. Word has length 60 [2019-09-10 07:34:04,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:04,496 INFO L475 AbstractCegarLoop]: Abstraction has 457 states and 637 transitions. [2019-09-10 07:34:04,496 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-10 07:34:04,496 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 637 transitions. [2019-09-10 07:34:04,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-10 07:34:04,500 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:04,500 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:04,501 INFO L418 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:04,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:04,501 INFO L82 PathProgramCache]: Analyzing trace with hash 864203142, now seen corresponding path program 1 times [2019-09-10 07:34:04,501 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:04,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:04,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:04,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:04,503 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:05,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:05,165 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:05,165 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-09-10 07:34:05,166 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:05,166 INFO L454 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-09-10 07:34:05,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-09-10 07:34:05,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2019-09-10 07:34:05,167 INFO L87 Difference]: Start difference. First operand 457 states and 637 transitions. Second operand 21 states. [2019-09-10 07:34:05,996 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-09-10 07:34:06,187 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-10 07:34:06,437 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-10 07:34:06,577 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-10 07:34:06,737 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-10 07:34:08,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:08,668 INFO L93 Difference]: Finished difference Result 2689 states and 3884 transitions. [2019-09-10 07:34:08,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-09-10 07:34:08,669 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 60 [2019-09-10 07:34:08,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:08,682 INFO L225 Difference]: With dead ends: 2689 [2019-09-10 07:34:08,682 INFO L226 Difference]: Without dead ends: 2689 [2019-09-10 07:34:08,683 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=333, Invalid=1389, Unknown=0, NotChecked=0, Total=1722 [2019-09-10 07:34:08,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2689 states. [2019-09-10 07:34:08,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2689 to 466. [2019-09-10 07:34:08,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2019-09-10 07:34:08,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 648 transitions. [2019-09-10 07:34:08,721 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 648 transitions. Word has length 60 [2019-09-10 07:34:08,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:08,721 INFO L475 AbstractCegarLoop]: Abstraction has 466 states and 648 transitions. [2019-09-10 07:34:08,721 INFO L476 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-09-10 07:34:08,721 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 648 transitions. [2019-09-10 07:34:08,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-10 07:34:08,722 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:08,722 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:08,722 INFO L418 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:08,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:08,723 INFO L82 PathProgramCache]: Analyzing trace with hash 890408359, now seen corresponding path program 1 times [2019-09-10 07:34:08,723 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:08,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:08,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:08,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:08,725 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:08,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:09,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:09,219 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:09,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-09-10 07:34:09,220 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:09,220 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-10 07:34:09,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-10 07:34:09,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2019-09-10 07:34:09,221 INFO L87 Difference]: Start difference. First operand 466 states and 648 transitions. Second operand 19 states. [2019-09-10 07:34:11,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:11,752 INFO L93 Difference]: Finished difference Result 2500 states and 3600 transitions. [2019-09-10 07:34:11,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-09-10 07:34:11,752 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 60 [2019-09-10 07:34:11,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:11,763 INFO L225 Difference]: With dead ends: 2500 [2019-09-10 07:34:11,763 INFO L226 Difference]: Without dead ends: 2500 [2019-09-10 07:34:11,765 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=278, Invalid=1204, Unknown=0, NotChecked=0, Total=1482 [2019-09-10 07:34:11,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2500 states. [2019-09-10 07:34:11,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2500 to 474. [2019-09-10 07:34:11,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2019-09-10 07:34:11,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 656 transitions. [2019-09-10 07:34:11,795 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 656 transitions. Word has length 60 [2019-09-10 07:34:11,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:11,795 INFO L475 AbstractCegarLoop]: Abstraction has 474 states and 656 transitions. [2019-09-10 07:34:11,795 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-10 07:34:11,796 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 656 transitions. [2019-09-10 07:34:11,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-10 07:34:11,796 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:11,796 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:11,797 INFO L418 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:11,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:11,797 INFO L82 PathProgramCache]: Analyzing trace with hash 141566253, now seen corresponding path program 1 times [2019-09-10 07:34:11,797 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:11,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:11,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:11,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:11,799 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:12,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:12,843 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:12,843 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-09-10 07:34:12,843 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:12,844 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-10 07:34:12,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-10 07:34:12,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2019-09-10 07:34:12,845 INFO L87 Difference]: Start difference. First operand 474 states and 656 transitions. Second operand 19 states. [2019-09-10 07:34:13,384 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2019-09-10 07:34:13,580 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2019-09-10 07:34:13,904 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2019-09-10 07:34:14,269 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 98 [2019-09-10 07:34:14,449 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2019-09-10 07:34:14,595 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2019-09-10 07:34:14,844 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2019-09-10 07:34:15,168 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2019-09-10 07:34:15,319 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2019-09-10 07:34:15,555 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2019-09-10 07:34:16,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:16,394 INFO L93 Difference]: Finished difference Result 1953 states and 2807 transitions. [2019-09-10 07:34:16,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-09-10 07:34:16,395 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 60 [2019-09-10 07:34:16,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:16,404 INFO L225 Difference]: With dead ends: 1953 [2019-09-10 07:34:16,404 INFO L226 Difference]: Without dead ends: 1953 [2019-09-10 07:34:16,405 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=280, Invalid=1052, Unknown=0, NotChecked=0, Total=1332 [2019-09-10 07:34:16,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2019-09-10 07:34:16,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 469. [2019-09-10 07:34:16,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2019-09-10 07:34:16,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 648 transitions. [2019-09-10 07:34:16,429 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 648 transitions. Word has length 60 [2019-09-10 07:34:16,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:16,429 INFO L475 AbstractCegarLoop]: Abstraction has 469 states and 648 transitions. [2019-09-10 07:34:16,429 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-10 07:34:16,430 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 648 transitions. [2019-09-10 07:34:16,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-10 07:34:16,430 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:16,430 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:16,431 INFO L418 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:16,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:16,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1535867814, now seen corresponding path program 1 times [2019-09-10 07:34:16,431 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:16,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:16,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:16,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:16,433 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:16,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:16,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:16,947 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:16,947 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-09-10 07:34:16,948 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:16,948 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-10 07:34:16,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-10 07:34:16,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2019-09-10 07:34:16,949 INFO L87 Difference]: Start difference. First operand 469 states and 648 transitions. Second operand 14 states. [2019-09-10 07:34:17,537 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 43 [2019-09-10 07:34:17,809 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2019-09-10 07:34:18,011 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2019-09-10 07:34:18,189 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-10 07:34:18,353 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2019-09-10 07:34:18,545 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 49 [2019-09-10 07:34:18,752 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2019-09-10 07:34:18,931 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-09-10 07:34:19,099 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 46 [2019-09-10 07:34:19,708 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-09-10 07:34:19,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:19,826 INFO L93 Difference]: Finished difference Result 2281 states and 3298 transitions. [2019-09-10 07:34:19,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-09-10 07:34:19,826 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 61 [2019-09-10 07:34:19,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:19,837 INFO L225 Difference]: With dead ends: 2281 [2019-09-10 07:34:19,837 INFO L226 Difference]: Without dead ends: 2281 [2019-09-10 07:34:19,838 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=213, Invalid=717, Unknown=0, NotChecked=0, Total=930 [2019-09-10 07:34:19,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2281 states. [2019-09-10 07:34:19,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2281 to 451. [2019-09-10 07:34:19,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2019-09-10 07:34:19,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 626 transitions. [2019-09-10 07:34:19,860 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 626 transitions. Word has length 61 [2019-09-10 07:34:19,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:19,860 INFO L475 AbstractCegarLoop]: Abstraction has 451 states and 626 transitions. [2019-09-10 07:34:19,860 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-10 07:34:19,861 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 626 transitions. [2019-09-10 07:34:19,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-10 07:34:19,861 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:19,861 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:19,862 INFO L418 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:19,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:19,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1946737755, now seen corresponding path program 1 times [2019-09-10 07:34:19,862 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:19,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:19,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:19,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:19,863 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:19,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:20,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:20,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:20,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 07:34:20,247 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:20,247 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 07:34:20,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 07:34:20,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-09-10 07:34:20,247 INFO L87 Difference]: Start difference. First operand 451 states and 626 transitions. Second operand 10 states. [2019-09-10 07:34:20,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:20,700 INFO L93 Difference]: Finished difference Result 1526 states and 2203 transitions. [2019-09-10 07:34:20,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-10 07:34:20,700 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 61 [2019-09-10 07:34:20,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:20,706 INFO L225 Difference]: With dead ends: 1526 [2019-09-10 07:34:20,707 INFO L226 Difference]: Without dead ends: 1526 [2019-09-10 07:34:20,707 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2019-09-10 07:34:20,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1526 states. [2019-09-10 07:34:20,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1526 to 428. [2019-09-10 07:34:20,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2019-09-10 07:34:20,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 600 transitions. [2019-09-10 07:34:20,724 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 600 transitions. Word has length 61 [2019-09-10 07:34:20,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:20,725 INFO L475 AbstractCegarLoop]: Abstraction has 428 states and 600 transitions. [2019-09-10 07:34:20,725 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 07:34:20,725 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 600 transitions. [2019-09-10 07:34:20,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-09-10 07:34:20,726 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:20,726 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:20,726 INFO L418 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:20,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:20,727 INFO L82 PathProgramCache]: Analyzing trace with hash -423380590, now seen corresponding path program 1 times [2019-09-10 07:34:20,727 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:20,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:20,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:20,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:20,728 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:20,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:20,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:20,771 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:20,771 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:34:20,772 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:20,772 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:34:20,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:34:20,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:34:20,773 INFO L87 Difference]: Start difference. First operand 428 states and 600 transitions. Second operand 3 states. [2019-09-10 07:34:20,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:20,798 INFO L93 Difference]: Finished difference Result 730 states and 1015 transitions. [2019-09-10 07:34:20,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:34:20,798 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 81 [2019-09-10 07:34:20,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:20,802 INFO L225 Difference]: With dead ends: 730 [2019-09-10 07:34:20,802 INFO L226 Difference]: Without dead ends: 730 [2019-09-10 07:34:20,802 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:34:20,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2019-09-10 07:34:20,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 728. [2019-09-10 07:34:20,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2019-09-10 07:34:20,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 1014 transitions. [2019-09-10 07:34:20,816 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 1014 transitions. Word has length 81 [2019-09-10 07:34:20,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:20,817 INFO L475 AbstractCegarLoop]: Abstraction has 728 states and 1014 transitions. [2019-09-10 07:34:20,817 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:34:20,817 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 1014 transitions. [2019-09-10 07:34:20,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-09-10 07:34:20,819 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:20,819 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:20,820 INFO L418 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:20,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:20,820 INFO L82 PathProgramCache]: Analyzing trace with hash 117443951, now seen corresponding path program 1 times [2019-09-10 07:34:20,820 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:20,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:20,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:20,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:20,822 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:20,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:20,869 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:20,869 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:34:20,870 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:20,871 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:34:20,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:34:20,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:34:20,872 INFO L87 Difference]: Start difference. First operand 728 states and 1014 transitions. Second operand 3 states. [2019-09-10 07:34:20,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:20,891 INFO L93 Difference]: Finished difference Result 1314 states and 1810 transitions. [2019-09-10 07:34:20,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:34:20,891 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2019-09-10 07:34:20,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:20,896 INFO L225 Difference]: With dead ends: 1314 [2019-09-10 07:34:20,896 INFO L226 Difference]: Without dead ends: 1314 [2019-09-10 07:34:20,897 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:34:20,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2019-09-10 07:34:20,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1240. [2019-09-10 07:34:20,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1240 states. [2019-09-10 07:34:20,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 1719 transitions. [2019-09-10 07:34:20,922 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 1719 transitions. Word has length 82 [2019-09-10 07:34:20,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:20,923 INFO L475 AbstractCegarLoop]: Abstraction has 1240 states and 1719 transitions. [2019-09-10 07:34:20,923 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:34:20,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 1719 transitions. [2019-09-10 07:34:20,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-10 07:34:20,924 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:20,924 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:20,924 INFO L418 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:20,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:20,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1225108903, now seen corresponding path program 1 times [2019-09-10 07:34:20,925 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:20,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:20,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:20,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:20,928 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:20,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:20,976 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:20,976 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:34:20,977 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:20,977 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:34:20,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:34:20,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:34:20,978 INFO L87 Difference]: Start difference. First operand 1240 states and 1719 transitions. Second operand 3 states. [2019-09-10 07:34:20,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:20,999 INFO L93 Difference]: Finished difference Result 1978 states and 2701 transitions. [2019-09-10 07:34:20,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:34:20,999 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2019-09-10 07:34:20,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:21,007 INFO L225 Difference]: With dead ends: 1978 [2019-09-10 07:34:21,007 INFO L226 Difference]: Without dead ends: 1978 [2019-09-10 07:34:21,007 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:34:21,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2019-09-10 07:34:21,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1840. [2019-09-10 07:34:21,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1840 states. [2019-09-10 07:34:21,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1840 states to 1840 states and 2530 transitions. [2019-09-10 07:34:21,045 INFO L78 Accepts]: Start accepts. Automaton has 1840 states and 2530 transitions. Word has length 83 [2019-09-10 07:34:21,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:21,046 INFO L475 AbstractCegarLoop]: Abstraction has 1840 states and 2530 transitions. [2019-09-10 07:34:21,046 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:34:21,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1840 states and 2530 transitions. [2019-09-10 07:34:21,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-10 07:34:21,047 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:21,047 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:21,047 INFO L418 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:21,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:21,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1957800115, now seen corresponding path program 1 times [2019-09-10 07:34:21,048 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:21,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:21,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:21,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:21,050 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:21,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:21,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:21,094 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:21,095 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:34:21,095 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:21,095 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:34:21,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:34:21,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:34:21,096 INFO L87 Difference]: Start difference. First operand 1840 states and 2530 transitions. Second operand 3 states. [2019-09-10 07:34:21,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:21,119 INFO L93 Difference]: Finished difference Result 1900 states and 2582 transitions. [2019-09-10 07:34:21,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:34:21,120 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2019-09-10 07:34:21,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:21,127 INFO L225 Difference]: With dead ends: 1900 [2019-09-10 07:34:21,127 INFO L226 Difference]: Without dead ends: 1900 [2019-09-10 07:34:21,130 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:34:21,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2019-09-10 07:34:21,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1898. [2019-09-10 07:34:21,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1898 states. [2019-09-10 07:34:21,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1898 states to 1898 states and 2581 transitions. [2019-09-10 07:34:21,164 INFO L78 Accepts]: Start accepts. Automaton has 1898 states and 2581 transitions. Word has length 84 [2019-09-10 07:34:21,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:21,164 INFO L475 AbstractCegarLoop]: Abstraction has 1898 states and 2581 transitions. [2019-09-10 07:34:21,164 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:34:21,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states and 2581 transitions. [2019-09-10 07:34:21,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-10 07:34:21,165 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:21,166 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:21,166 INFO L418 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:21,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:21,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1545507017, now seen corresponding path program 1 times [2019-09-10 07:34:21,166 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:21,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:21,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:21,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:21,170 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:21,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:21,260 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:21,260 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 07:34:21,261 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:21,261 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 07:34:21,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 07:34:21,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 07:34:21,262 INFO L87 Difference]: Start difference. First operand 1898 states and 2581 transitions. Second operand 6 states. [2019-09-10 07:34:21,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:21,357 INFO L93 Difference]: Finished difference Result 2919 states and 3920 transitions. [2019-09-10 07:34:21,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-10 07:34:21,358 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2019-09-10 07:34:21,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:21,391 INFO L225 Difference]: With dead ends: 2919 [2019-09-10 07:34:21,392 INFO L226 Difference]: Without dead ends: 2919 [2019-09-10 07:34:21,392 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-09-10 07:34:21,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2919 states. [2019-09-10 07:34:21,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2919 to 1946. [2019-09-10 07:34:21,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1946 states. [2019-09-10 07:34:21,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1946 states to 1946 states and 2613 transitions. [2019-09-10 07:34:21,449 INFO L78 Accepts]: Start accepts. Automaton has 1946 states and 2613 transitions. Word has length 84 [2019-09-10 07:34:21,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:21,450 INFO L475 AbstractCegarLoop]: Abstraction has 1946 states and 2613 transitions. [2019-09-10 07:34:21,450 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 07:34:21,450 INFO L276 IsEmpty]: Start isEmpty. Operand 1946 states and 2613 transitions. [2019-09-10 07:34:21,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-09-10 07:34:21,451 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:21,451 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:21,451 INFO L418 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:21,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:21,451 INFO L82 PathProgramCache]: Analyzing trace with hash -726571682, now seen corresponding path program 1 times [2019-09-10 07:34:21,452 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:21,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:21,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:21,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:21,453 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:21,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:21,640 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:21,640 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 07:34:21,640 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:21,640 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 07:34:21,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 07:34:21,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:34:21,641 INFO L87 Difference]: Start difference. First operand 1946 states and 2613 transitions. Second operand 7 states. [2019-09-10 07:34:22,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:22,082 INFO L93 Difference]: Finished difference Result 4382 states and 5740 transitions. [2019-09-10 07:34:22,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 07:34:22,088 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2019-09-10 07:34:22,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:22,108 INFO L225 Difference]: With dead ends: 4382 [2019-09-10 07:34:22,108 INFO L226 Difference]: Without dead ends: 4382 [2019-09-10 07:34:22,109 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2019-09-10 07:34:22,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4382 states. [2019-09-10 07:34:22,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4382 to 2252. [2019-09-10 07:34:22,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2252 states. [2019-09-10 07:34:22,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 3021 transitions. [2019-09-10 07:34:22,159 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 3021 transitions. Word has length 85 [2019-09-10 07:34:22,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:22,160 INFO L475 AbstractCegarLoop]: Abstraction has 2252 states and 3021 transitions. [2019-09-10 07:34:22,160 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 07:34:22,160 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 3021 transitions. [2019-09-10 07:34:22,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-09-10 07:34:22,161 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:22,162 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:22,162 INFO L418 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:22,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:22,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1564150365, now seen corresponding path program 1 times [2019-09-10 07:34:22,163 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:22,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:22,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:22,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:22,164 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:22,226 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:22,227 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:22,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:34:22,227 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:22,227 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:34:22,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:34:22,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:34:22,228 INFO L87 Difference]: Start difference. First operand 2252 states and 3021 transitions. Second operand 3 states. [2019-09-10 07:34:22,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:22,250 INFO L93 Difference]: Finished difference Result 4108 states and 5350 transitions. [2019-09-10 07:34:22,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:34:22,251 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2019-09-10 07:34:22,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:22,258 INFO L225 Difference]: With dead ends: 4108 [2019-09-10 07:34:22,258 INFO L226 Difference]: Without dead ends: 4108 [2019-09-10 07:34:22,258 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:34:22,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4108 states. [2019-09-10 07:34:22,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4108 to 3678. [2019-09-10 07:34:22,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3678 states. [2019-09-10 07:34:22,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3678 states to 3678 states and 4831 transitions. [2019-09-10 07:34:22,304 INFO L78 Accepts]: Start accepts. Automaton has 3678 states and 4831 transitions. Word has length 105 [2019-09-10 07:34:22,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:22,305 INFO L475 AbstractCegarLoop]: Abstraction has 3678 states and 4831 transitions. [2019-09-10 07:34:22,305 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:34:22,305 INFO L276 IsEmpty]: Start isEmpty. Operand 3678 states and 4831 transitions. [2019-09-10 07:34:22,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-09-10 07:34:22,307 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:22,307 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:22,307 INFO L418 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:22,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:22,307 INFO L82 PathProgramCache]: Analyzing trace with hash -2083222958, now seen corresponding path program 1 times [2019-09-10 07:34:22,308 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:22,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:22,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:22,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:22,309 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:22,547 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:22,548 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:34:22,548 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:34:22,550 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 107 with the following transitions: [2019-09-10 07:34:22,552 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [58], [61], [64], [66], [70], [73], [76], [78], [82], [85], [88], [90], [93], [97], [100], [103], [107], [110], [113], [116], [119], [121], [124], [127], [130], [132], [135], [138], [143], [146], [150], [153], [156], [160], [162], [165], [168], [176], [178], [181], [189], [191], [194], [202], [204], [207], [210], [214], [216], [218], [221], [222], [224], [226], [231], [233], [236], [249], [251], [254], [257], [259], [274], [276], [279], [282], [284], [299], [301], [304], [307], [309], [328], [333], [390], [391], [395], [396], [397] [2019-09-10 07:34:22,612 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:34:22,613 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:34:22,810 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:34:23,475 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:34:23,478 INFO L272 AbstractInterpreter]: Visited 98 different actions 602 times. Merged at 38 different actions 435 times. Widened at 17 different actions 70 times. Performed 2264 root evaluator evaluations with a maximum evaluation depth of 5. Performed 2264 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 73 fixpoints after 17 different actions. Largest state had 119 variables. [2019-09-10 07:34:23,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:23,483 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:34:23,483 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:34:23,483 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:34:23,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:23,503 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:34:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:23,611 INFO L256 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 13 conjunts are in the unsatisfiable core [2019-09-10 07:34:23,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:34:23,756 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:23,805 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:23,879 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:24,145 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:24,146 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:34:24,225 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:24,387 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:24,470 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:24,471 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:24,472 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:25,663 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:25,776 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:25,780 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:34:25,781 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 31 [2019-09-10 07:34:25,781 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:34:25,782 INFO L454 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-09-10 07:34:25,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-09-10 07:34:25,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=818, Unknown=0, NotChecked=0, Total=930 [2019-09-10 07:34:25,783 INFO L87 Difference]: Start difference. First operand 3678 states and 4831 transitions. Second operand 21 states. [2019-09-10 07:34:28,280 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 37 [2019-09-10 07:34:32,788 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 43 [2019-09-10 07:34:36,191 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 43 [2019-09-10 07:34:39,675 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 42 [2019-09-10 07:34:40,782 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 43 [2019-09-10 07:34:42,588 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 47 [2019-09-10 07:34:42,742 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 41 [2019-09-10 07:34:42,905 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 47 [2019-09-10 07:34:51,342 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 46 [2019-09-10 07:34:54,190 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2019-09-10 07:34:58,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:58,089 INFO L93 Difference]: Finished difference Result 73148 states and 93174 transitions. [2019-09-10 07:34:58,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 273 states. [2019-09-10 07:34:58,089 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 106 [2019-09-10 07:34:58,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:58,249 INFO L225 Difference]: With dead ends: 73148 [2019-09-10 07:34:58,250 INFO L226 Difference]: Without dead ends: 73148 [2019-09-10 07:34:58,269 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 167 SyntacticMatches, 26 SemanticMatches, 300 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37239 ImplicationChecksByTransitivity, 27.7s TimeCoverageRelationStatistics Valid=11539, Invalid=79363, Unknown=0, NotChecked=0, Total=90902 [2019-09-10 07:34:58,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73148 states. [2019-09-10 07:34:58,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73148 to 19111. [2019-09-10 07:34:58,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19111 states. [2019-09-10 07:34:58,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19111 states to 19111 states and 24947 transitions. [2019-09-10 07:34:58,960 INFO L78 Accepts]: Start accepts. Automaton has 19111 states and 24947 transitions. Word has length 106 [2019-09-10 07:34:58,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:58,960 INFO L475 AbstractCegarLoop]: Abstraction has 19111 states and 24947 transitions. [2019-09-10 07:34:58,960 INFO L476 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-09-10 07:34:58,961 INFO L276 IsEmpty]: Start isEmpty. Operand 19111 states and 24947 transitions. [2019-09-10 07:34:58,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-09-10 07:34:58,968 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:58,969 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:58,969 INFO L418 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:58,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:58,969 INFO L82 PathProgramCache]: Analyzing trace with hash 404661652, now seen corresponding path program 1 times [2019-09-10 07:34:58,969 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:58,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:58,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:58,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:58,971 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:59,209 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:59,209 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:34:59,209 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:34:59,210 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 107 with the following transitions: [2019-09-10 07:34:59,210 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [58], [61], [64], [66], [70], [73], [76], [78], [82], [85], [88], [90], [93], [97], [100], [103], [107], [110], [113], [116], [121], [124], [127], [130], [132], [135], [138], [141], [143], [146], [150], [153], [156], [160], [162], [165], [168], [176], [178], [181], [189], [191], [194], [202], [204], [207], [210], [214], [216], [218], [221], [222], [224], [226], [231], [233], [236], [249], [251], [254], [257], [259], [274], [276], [279], [282], [284], [299], [301], [304], [307], [309], [348], [353], [390], [391], [395], [396], [397] [2019-09-10 07:34:59,220 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:34:59,220 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:34:59,245 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:34:59,551 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:34:59,551 INFO L272 AbstractInterpreter]: Visited 98 different actions 594 times. Merged at 38 different actions 427 times. Widened at 18 different actions 86 times. Performed 2068 root evaluator evaluations with a maximum evaluation depth of 5. Performed 2068 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 73 fixpoints after 19 different actions. Largest state had 119 variables. [2019-09-10 07:34:59,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:59,552 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:34:59,552 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:34:59,552 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:34:59,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:59,566 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:34:59,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:59,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 14 conjunts are in the unsatisfiable core [2019-09-10 07:34:59,679 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:34:59,756 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:59,786 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:59,822 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:59,881 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:00,046 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:35:00,046 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:35:00,671 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:00,845 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:00,914 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:00,915 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:00,916 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:01,405 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:01,499 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 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 07:35:01,503 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:35:01,503 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13, 13] total 31 [2019-09-10 07:35:01,503 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:35:01,504 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-10 07:35:01,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-10 07:35:01,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=806, Unknown=0, NotChecked=0, Total=930 [2019-09-10 07:35:01,505 INFO L87 Difference]: Start difference. First operand 19111 states and 24947 transitions. Second operand 20 states. [2019-09-10 07:35:14,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:14,559 INFO L93 Difference]: Finished difference Result 65914 states and 84415 transitions. [2019-09-10 07:35:14,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2019-09-10 07:35:14,559 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 106 [2019-09-10 07:35:14,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:14,686 INFO L225 Difference]: With dead ends: 65914 [2019-09-10 07:35:14,686 INFO L226 Difference]: Without dead ends: 65914 [2019-09-10 07:35:14,689 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 178 SyntacticMatches, 14 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7618 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=3898, Invalid=18154, Unknown=0, NotChecked=0, Total=22052 [2019-09-10 07:35:14,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65914 states. [2019-09-10 07:35:15,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65914 to 19105. [2019-09-10 07:35:15,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19105 states. [2019-09-10 07:35:15,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19105 states to 19105 states and 24941 transitions. [2019-09-10 07:35:15,390 INFO L78 Accepts]: Start accepts. Automaton has 19105 states and 24941 transitions. Word has length 106 [2019-09-10 07:35:15,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:15,391 INFO L475 AbstractCegarLoop]: Abstraction has 19105 states and 24941 transitions. [2019-09-10 07:35:15,391 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-10 07:35:15,391 INFO L276 IsEmpty]: Start isEmpty. Operand 19105 states and 24941 transitions. [2019-09-10 07:35:15,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-09-10 07:35:15,395 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:15,395 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:35:15,396 INFO L418 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:15,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:15,396 INFO L82 PathProgramCache]: Analyzing trace with hash -556369120, now seen corresponding path program 1 times [2019-09-10 07:35:15,396 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:15,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:15,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:15,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:15,399 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:15,764 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:35:15,765 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:35:15,765 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:35:15,765 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 108 with the following transitions: [2019-09-10 07:35:15,767 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [58], [61], [64], [66], [70], [73], [76], [78], [82], [85], [88], [90], [93], [97], [100], [103], [107], [110], [113], [116], [119], [121], [124], [127], [130], [132], [135], [138], [143], [146], [150], [153], [156], [160], [162], [165], [168], [171], [176], [178], [181], [184], [189], [191], [194], [202], [204], [207], [214], [216], [218], [221], [222], [224], [233], [236], [240], [249], [251], [254], [257], [259], [267], [270], [276], [279], [282], [284], [292], [295], [301], [304], [307], [309], [328], [333], [390], [391], [395], [396], [397] [2019-09-10 07:35:15,777 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:35:15,778 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:35:15,803 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:35:16,062 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:35:16,063 INFO L272 AbstractInterpreter]: Visited 100 different actions 474 times. Merged at 40 different actions 332 times. Widened at 14 different actions 54 times. Performed 1805 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1805 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 36 fixpoints after 12 different actions. Largest state had 119 variables. [2019-09-10 07:35:16,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:16,064 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:35:16,064 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:35:16,064 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 07:35:16,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:16,081 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:35:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:16,187 INFO L256 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 16 conjunts are in the unsatisfiable core [2019-09-10 07:35:16,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:35:16,293 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:16,329 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:16,392 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:16,580 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:35:16,580 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:35:16,879 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:16,968 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:16,968 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:16,969 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:16,970 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:16,970 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:16,970 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:16,971 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:17,011 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:35:17,015 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:35:17,015 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 28 [2019-09-10 07:35:17,015 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:35:17,016 INFO L454 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-09-10 07:35:17,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-09-10 07:35:17,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=665, Unknown=0, NotChecked=0, Total=756 [2019-09-10 07:35:17,021 INFO L87 Difference]: Start difference. First operand 19105 states and 24941 transitions. Second operand 23 states. [2019-09-10 07:35:18,577 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 30 [2019-09-10 07:35:19,419 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2019-09-10 07:35:19,905 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2019-09-10 07:35:20,313 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 39 [2019-09-10 07:35:20,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:20,553 INFO L93 Difference]: Finished difference Result 47415 states and 61440 transitions. [2019-09-10 07:35:20,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-09-10 07:35:20,553 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 107 [2019-09-10 07:35:20,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:20,624 INFO L225 Difference]: With dead ends: 47415 [2019-09-10 07:35:20,624 INFO L226 Difference]: Without dead ends: 47415 [2019-09-10 07:35:20,625 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 197 SyntacticMatches, 4 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=658, Invalid=2204, Unknown=0, NotChecked=0, Total=2862 [2019-09-10 07:35:20,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47415 states. [2019-09-10 07:35:20,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47415 to 19114. [2019-09-10 07:35:20,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19114 states. [2019-09-10 07:35:21,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19114 states to 19114 states and 24950 transitions. [2019-09-10 07:35:21,009 INFO L78 Accepts]: Start accepts. Automaton has 19114 states and 24950 transitions. Word has length 107 [2019-09-10 07:35:21,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:21,009 INFO L475 AbstractCegarLoop]: Abstraction has 19114 states and 24950 transitions. [2019-09-10 07:35:21,009 INFO L476 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-09-10 07:35:21,009 INFO L276 IsEmpty]: Start isEmpty. Operand 19114 states and 24950 transitions. [2019-09-10 07:35:21,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-09-10 07:35:21,015 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:21,015 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:35:21,016 INFO L418 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:21,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:21,017 INFO L82 PathProgramCache]: Analyzing trace with hash -463366817, now seen corresponding path program 1 times [2019-09-10 07:35:21,017 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:21,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:21,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:21,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:21,018 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:21,203 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:35:21,204 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:35:21,204 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:35:21,205 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 108 with the following transitions: [2019-09-10 07:35:21,206 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [58], [61], [64], [66], [70], [73], [76], [78], [82], [85], [88], [90], [93], [97], [100], [103], [107], [110], [113], [116], [119], [121], [124], [127], [132], [135], [138], [141], [143], [146], [150], [153], [156], [160], [162], [165], [168], [171], [176], [178], [181], [184], [189], [191], [194], [202], [204], [207], [214], [216], [218], [221], [222], [224], [233], [236], [240], [249], [251], [254], [257], [259], [267], [270], [276], [279], [282], [284], [292], [295], [301], [304], [307], [309], [338], [343], [390], [391], [395], [396], [397] [2019-09-10 07:35:21,210 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:35:21,210 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:35:21,242 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:35:21,645 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:35:21,646 INFO L272 AbstractInterpreter]: Visited 100 different actions 552 times. Merged at 40 different actions 402 times. Widened at 14 different actions 64 times. Performed 2059 root evaluator evaluations with a maximum evaluation depth of 5. Performed 2059 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 44 fixpoints after 11 different actions. Largest state had 119 variables. [2019-09-10 07:35:21,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:21,646 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:35:21,646 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:35:21,647 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 07:35:21,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:21,671 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:35:21,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:21,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 14 conjunts are in the unsatisfiable core [2019-09-10 07:35:21,775 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:35:21,863 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:21,896 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:21,929 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:21,993 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:22,155 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:35:22,155 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:35:22,210 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:22,389 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:22,448 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:22,448 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:22,449 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:23,046 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:23,177 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:35:23,181 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:35:23,181 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13, 13] total 31 [2019-09-10 07:35:23,181 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:35:23,181 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-10 07:35:23,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-10 07:35:23,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=805, Unknown=0, NotChecked=0, Total=930 [2019-09-10 07:35:23,182 INFO L87 Difference]: Start difference. First operand 19114 states and 24950 transitions. Second operand 20 states. [2019-09-10 07:35:30,997 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2019-09-10 07:35:35,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:35,045 INFO L93 Difference]: Finished difference Result 150014 states and 191289 transitions. [2019-09-10 07:35:35,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2019-09-10 07:35:35,045 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 107 [2019-09-10 07:35:35,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:35,238 INFO L225 Difference]: With dead ends: 150014 [2019-09-10 07:35:35,238 INFO L226 Difference]: Without dead ends: 150014 [2019-09-10 07:35:35,240 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 180 SyntacticMatches, 14 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7586 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=3743, Invalid=18013, Unknown=0, NotChecked=0, Total=21756 [2019-09-10 07:35:35,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150014 states. [2019-09-10 07:35:36,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150014 to 47118. [2019-09-10 07:35:36,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47118 states. [2019-09-10 07:35:36,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47118 states to 47118 states and 61407 transitions. [2019-09-10 07:35:36,323 INFO L78 Accepts]: Start accepts. Automaton has 47118 states and 61407 transitions. Word has length 107 [2019-09-10 07:35:36,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:36,323 INFO L475 AbstractCegarLoop]: Abstraction has 47118 states and 61407 transitions. [2019-09-10 07:35:36,323 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-10 07:35:36,323 INFO L276 IsEmpty]: Start isEmpty. Operand 47118 states and 61407 transitions. [2019-09-10 07:35:36,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-09-10 07:35:36,332 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:36,332 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:35:36,332 INFO L418 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:36,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:36,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1579308371, now seen corresponding path program 1 times [2019-09-10 07:35:36,333 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:36,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:36,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:36,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:36,334 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:36,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:36,561 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:35:36,561 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:35:36,561 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:35:36,561 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 108 with the following transitions: [2019-09-10 07:35:36,561 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [58], [61], [64], [66], [70], [73], [76], [78], [82], [85], [88], [90], [93], [97], [100], [103], [107], [110], [113], [116], [119], [121], [124], [127], [132], [135], [138], [141], [143], [146], [150], [153], [156], [160], [162], [165], [168], [176], [178], [181], [184], [189], [191], [194], [197], [202], [204], [207], [214], [216], [218], [221], [222], [224], [233], [236], [240], [242], [245], [251], [254], [257], [259], [267], [270], [276], [279], [282], [284], [299], [301], [304], [307], [309], [338], [343], [390], [391], [395], [396], [397] [2019-09-10 07:35:36,567 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:35:36,567 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:35:36,579 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:35:36,997 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:35:36,998 INFO L272 AbstractInterpreter]: Visited 100 different actions 372 times. Merged at 40 different actions 240 times. Widened at 10 different actions 26 times. Performed 1434 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1434 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 25 fixpoints after 10 different actions. Largest state had 119 variables. [2019-09-10 07:35:36,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:36,999 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:35:36,999 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:35:37,000 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:35:37,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:37,016 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:35:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:37,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-10 07:35:37,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:35:37,235 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:37,278 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:37,322 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:37,412 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:37,604 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:35:37,604 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:35:38,013 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:38,091 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:38,092 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:38,092 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:38,093 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:38,093 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:38,093 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:38,094 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:38,127 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:35:38,131 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:35:38,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 32 [2019-09-10 07:35:38,131 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:35:38,132 INFO L454 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-09-10 07:35:38,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-09-10 07:35:38,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=902, Unknown=0, NotChecked=0, Total=992 [2019-09-10 07:35:38,132 INFO L87 Difference]: Start difference. First operand 47118 states and 61407 transitions. Second operand 22 states. [2019-09-10 07:35:39,743 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 29 [2019-09-10 07:35:40,150 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 33 [2019-09-10 07:35:40,350 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-09-10 07:35:40,762 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 41 [2019-09-10 07:35:40,937 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 38 [2019-09-10 07:35:41,505 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 44 [2019-09-10 07:35:41,683 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 35 [2019-09-10 07:35:41,825 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 32 [2019-09-10 07:35:42,162 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 44 [2019-09-10 07:35:42,345 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 38 [2019-09-10 07:35:42,650 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 40 [2019-09-10 07:35:42,957 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 38 [2019-09-10 07:35:43,163 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 44 [2019-09-10 07:35:43,598 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 38 [2019-09-10 07:35:44,289 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 32 [2019-09-10 07:35:45,364 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 38 [2019-09-10 07:35:45,549 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 38 [2019-09-10 07:35:45,971 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 46 [2019-09-10 07:35:46,142 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 46 [2019-09-10 07:35:46,301 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 32 [2019-09-10 07:35:46,631 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 42 [2019-09-10 07:35:46,832 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 42 [2019-09-10 07:35:47,077 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 44 [2019-09-10 07:35:47,266 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 44 [2019-09-10 07:35:47,565 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-09-10 07:35:47,768 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 44 [2019-09-10 07:35:47,969 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 44 [2019-09-10 07:35:48,141 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 36 [2019-09-10 07:35:48,381 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 48 [2019-09-10 07:35:48,579 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 40 [2019-09-10 07:35:48,744 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 48 [2019-09-10 07:35:49,061 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 40 [2019-09-10 07:35:49,252 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 40 [2019-09-10 07:35:49,539 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 38 [2019-09-10 07:35:49,833 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 31 [2019-09-10 07:35:50,026 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 38 [2019-09-10 07:35:50,211 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 38 [2019-09-10 07:35:50,383 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 38 [2019-09-10 07:35:50,567 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 46 [2019-09-10 07:35:50,748 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 46 [2019-09-10 07:35:51,423 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 46 [2019-09-10 07:35:51,645 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 46 [2019-09-10 07:35:51,793 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 38 [2019-09-10 07:35:52,098 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 34 [2019-09-10 07:35:52,257 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 37 [2019-09-10 07:35:52,424 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 44 [2019-09-10 07:35:52,578 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 44 [2019-09-10 07:35:52,734 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 38 [2019-09-10 07:35:52,891 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 32 [2019-09-10 07:35:53,656 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 32 [2019-09-10 07:35:54,297 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2019-09-10 07:35:54,630 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2019-09-10 07:35:54,804 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 40 [2019-09-10 07:35:54,962 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 43 [2019-09-10 07:35:55,263 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 35 [2019-09-10 07:35:55,776 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 38 [2019-09-10 07:35:55,976 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 38 [2019-09-10 07:35:56,126 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 32 [2019-09-10 07:35:56,929 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 41 [2019-09-10 07:35:58,108 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 49 [2019-09-10 07:35:58,293 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 41 [2019-09-10 07:35:58,481 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 41 [2019-09-10 07:35:58,672 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 49 [2019-09-10 07:35:58,849 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 41 [2019-09-10 07:35:59,034 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 41 [2019-09-10 07:35:59,207 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 46 [2019-09-10 07:35:59,388 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 41 [2019-09-10 07:35:59,542 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 38 [2019-09-10 07:35:59,733 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 38 [2019-09-10 07:36:00,064 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 41 [2019-09-10 07:36:00,412 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 41 [2019-09-10 07:36:00,574 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 32 [2019-09-10 07:36:00,885 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 47 [2019-09-10 07:36:01,083 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 47 [2019-09-10 07:36:01,276 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 44 [2019-09-10 07:36:01,586 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2019-09-10 07:36:01,886 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2019-09-10 07:36:02,161 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 35 [2019-09-10 07:36:02,503 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 32 [2019-09-10 07:36:03,088 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 48 [2019-09-10 07:36:03,260 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 47 [2019-09-10 07:36:03,469 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 47 [2019-09-10 07:36:03,653 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 39 [2019-09-10 07:36:03,833 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 45 [2019-09-10 07:36:04,056 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 47 [2019-09-10 07:36:04,241 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 37 [2019-09-10 07:36:04,423 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 36 [2019-09-10 07:36:04,573 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 39 [2019-09-10 07:36:04,764 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 44 [2019-09-10 07:36:05,007 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 47 [2019-09-10 07:36:05,176 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 33 [2019-09-10 07:36:05,339 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 35 [2019-09-10 07:36:05,600 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 47 [2019-09-10 07:36:05,770 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 33 [2019-09-10 07:36:05,935 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 35 [2019-09-10 07:36:06,424 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 45 [2019-09-10 07:36:06,598 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 43 [2019-09-10 07:36:06,770 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 42 [2019-09-10 07:36:07,008 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 41 [2019-09-10 07:36:07,207 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 35 [2019-09-10 07:36:07,406 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 41 [2019-09-10 07:36:07,706 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 38 [2019-09-10 07:36:08,169 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 46 [2019-09-10 07:36:08,365 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 41 [2019-09-10 07:36:08,708 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 43 [2019-09-10 07:36:08,990 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 42 [2019-09-10 07:36:09,149 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 37 [2019-09-10 07:36:09,507 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 41 [2019-09-10 07:36:09,854 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 41 [2019-09-10 07:36:10,745 WARN L188 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 30 [2019-09-10 07:36:11,517 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 40 [2019-09-10 07:36:11,675 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 35 [2019-09-10 07:36:11,836 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 32 [2019-09-10 07:36:12,631 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 36 [2019-09-10 07:36:12,823 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 42 [2019-09-10 07:36:13,701 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 45 [2019-09-10 07:36:14,271 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 48 [2019-09-10 07:36:14,474 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 40 [2019-09-10 07:36:14,635 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 46 [2019-09-10 07:36:15,439 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 39 [2019-09-10 07:36:16,504 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 45 [2019-09-10 07:36:16,738 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 42 [2019-09-10 07:36:16,898 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 47 [2019-09-10 07:36:17,118 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 43 [2019-09-10 07:36:17,344 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 33 [2019-09-10 07:36:17,642 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 41 [2019-09-10 07:36:17,985 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 39 [2019-09-10 07:36:18,329 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 43 [2019-09-10 07:36:18,561 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 50 [2019-09-10 07:36:18,778 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 45 [2019-09-10 07:36:19,002 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 46 [2019-09-10 07:36:19,203 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 45 [2019-09-10 07:36:19,406 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 41 [2019-09-10 07:36:19,587 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 37 [2019-09-10 07:36:19,758 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 36 [2019-09-10 07:36:20,099 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 35 [2019-09-10 07:36:20,572 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 36 [2019-09-10 07:36:21,338 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 48 [2019-09-10 07:36:21,571 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 48 [2019-09-10 07:36:21,778 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 43 [2019-09-10 07:36:21,982 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2019-09-10 07:36:22,161 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2019-09-10 07:36:22,331 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 44 [2019-09-10 07:36:22,533 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 40 [2019-09-10 07:36:23,039 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 36 [2019-09-10 07:36:23,207 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 39 [2019-09-10 07:36:23,382 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 38 [2019-09-10 07:36:23,650 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 30 [2019-09-10 07:36:24,082 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 32 [2019-09-10 07:36:24,309 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 46 [2019-09-10 07:36:24,522 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 37 [2019-09-10 07:36:24,696 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 42 [2019-09-10 07:36:24,888 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 42 [2019-09-10 07:36:25,060 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 39 [2019-09-10 07:36:25,236 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 41 [2019-09-10 07:36:26,354 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 33 [2019-09-10 07:36:26,884 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2019-09-10 07:36:27,061 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 35 [2019-09-10 07:36:27,548 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 35 [2019-09-10 07:36:28,052 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 47 [2019-09-10 07:36:28,230 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2019-09-10 07:36:29,241 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 38 [2019-09-10 07:36:29,458 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 41 [2019-09-10 07:36:29,657 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 47 [2019-09-10 07:36:29,830 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2019-09-10 07:36:30,628 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 35 [2019-09-10 07:36:31,127 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 41 [2019-09-10 07:36:31,291 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 36 [2019-09-10 07:36:31,598 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 38 [2019-09-10 07:36:33,146 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 31 [2019-09-10 07:36:33,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:36:33,811 INFO L93 Difference]: Finished difference Result 198855 states and 253035 transitions. [2019-09-10 07:36:33,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 318 states. [2019-09-10 07:36:33,811 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 107 [2019-09-10 07:36:33,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:36:34,042 INFO L225 Difference]: With dead ends: 198855 [2019-09-10 07:36:34,042 INFO L226 Difference]: Without dead ends: 198855 [2019-09-10 07:36:34,049 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 193 SyntacticMatches, 2 SemanticMatches, 346 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48573 ImplicationChecksByTransitivity, 49.8s TimeCoverageRelationStatistics Valid=13932, Invalid=106824, Unknown=0, NotChecked=0, Total=120756 [2019-09-10 07:36:34,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198855 states. [2019-09-10 07:36:35,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198855 to 85201. [2019-09-10 07:36:35,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85201 states. [2019-09-10 07:36:35,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85201 states to 85201 states and 110973 transitions. [2019-09-10 07:36:35,366 INFO L78 Accepts]: Start accepts. Automaton has 85201 states and 110973 transitions. Word has length 107 [2019-09-10 07:36:35,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:36:35,367 INFO L475 AbstractCegarLoop]: Abstraction has 85201 states and 110973 transitions. [2019-09-10 07:36:35,367 INFO L476 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-09-10 07:36:35,367 INFO L276 IsEmpty]: Start isEmpty. Operand 85201 states and 110973 transitions. [2019-09-10 07:36:35,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-09-10 07:36:35,378 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:36:35,379 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:36:35,379 INFO L418 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:36:35,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:36:35,379 INFO L82 PathProgramCache]: Analyzing trace with hash -741357538, now seen corresponding path program 1 times [2019-09-10 07:36:35,379 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:36:35,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:36:35,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:36:35,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:36:35,381 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:36:35,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:36:35,641 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:36:35,642 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:36:35,642 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:36:35,642 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 108 with the following transitions: [2019-09-10 07:36:35,643 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [58], [61], [64], [66], [70], [73], [76], [78], [82], [85], [88], [90], [93], [97], [100], [103], [107], [110], [113], [116], [121], [124], [127], [130], [132], [135], [138], [141], [143], [146], [150], [153], [156], [160], [162], [165], [168], [171], [176], [178], [181], [184], [189], [191], [194], [202], [204], [207], [214], [216], [218], [221], [222], [224], [233], [236], [240], [249], [251], [254], [257], [259], [267], [270], [276], [279], [282], [284], [292], [295], [301], [304], [307], [309], [348], [353], [390], [391], [395], [396], [397] [2019-09-10 07:36:35,644 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:36:35,644 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:36:35,655 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:36:35,866 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:36:35,867 INFO L272 AbstractInterpreter]: Visited 100 different actions 500 times. Merged at 40 different actions 356 times. Widened at 13 different actions 47 times. Performed 1908 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1908 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 39 fixpoints after 12 different actions. Largest state had 119 variables. [2019-09-10 07:36:35,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:36:35,867 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:36:35,867 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:36:35,867 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:36:35,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:36:35,882 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:36:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:36:35,979 INFO L256 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-10 07:36:35,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:36:36,065 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:36,105 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:36,134 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:36,192 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:36,402 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:36:36,402 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:36:36,767 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:36,853 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:36,854 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:36,855 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:36,855 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:36,856 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:36,856 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:36,857 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:36,906 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:36:36,909 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:36:36,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 32 [2019-09-10 07:36:36,909 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:36:36,910 INFO L454 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-09-10 07:36:36,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-09-10 07:36:36,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=902, Unknown=0, NotChecked=0, Total=992 [2019-09-10 07:36:36,910 INFO L87 Difference]: Start difference. First operand 85201 states and 110973 transitions. Second operand 22 states. [2019-09-10 07:36:38,713 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 29 [2019-09-10 07:36:40,531 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 35 [2019-09-10 07:36:40,674 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 32 [2019-09-10 07:36:40,990 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 38 [2019-09-10 07:36:41,450 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 42 [2019-09-10 07:36:42,364 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 38 [2019-09-10 07:36:42,591 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 44 [2019-09-10 07:36:42,898 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 40 [2019-09-10 07:36:43,122 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 44 [2019-09-10 07:36:43,851 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 44 [2019-09-10 07:36:44,181 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 40 [2019-09-10 07:36:44,480 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 46 [2019-09-10 07:36:44,636 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-09-10 07:36:44,817 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 38 [2019-09-10 07:36:45,467 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 38 [2019-09-10 07:36:45,669 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 46 [2019-09-10 07:36:45,817 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 31 [2019-09-10 07:36:46,249 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 42 [2019-09-10 07:36:47,037 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2019-09-10 07:36:47,699 WARN L188 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 37 [2019-09-10 07:36:47,870 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 32 [2019-09-10 07:36:48,050 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 38 [2019-09-10 07:36:48,557 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 45 [2019-09-10 07:36:49,319 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 41 [2019-09-10 07:36:49,516 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 47 [2019-09-10 07:36:49,697 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 41 [2019-09-10 07:36:49,870 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 35 [2019-09-10 07:36:50,017 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 32 [2019-09-10 07:36:50,172 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 41 [2019-09-10 07:36:50,986 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 42 [2019-09-10 07:36:51,764 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 47 [2019-09-10 07:36:51,939 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 38 [2019-09-10 07:36:52,107 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 44 [2019-09-10 07:36:52,288 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 41 [2019-09-10 07:36:52,431 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 38 [2019-09-10 07:36:52,609 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 45 [2019-09-10 07:36:52,794 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 35 [2019-09-10 07:36:52,957 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 35 [2019-09-10 07:36:53,674 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 45 [2019-09-10 07:36:53,861 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 44 [2019-09-10 07:36:54,359 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 41 [2019-09-10 07:36:54,556 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 40 [2019-09-10 07:36:54,744 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 47 [2019-09-10 07:36:54,927 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 46 [2019-09-10 07:36:55,136 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 44 [2019-09-10 07:36:55,306 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 42 [2019-09-10 07:36:55,510 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 41 [2019-09-10 07:36:56,550 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 32 [2019-09-10 07:36:56,942 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 47 [2019-09-10 07:36:57,148 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 46 [2019-09-10 07:36:57,328 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 45 [2019-09-10 07:36:57,652 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 38 [2019-09-10 07:36:58,014 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 38 [2019-09-10 07:36:58,877 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 38 [2019-09-10 07:36:59,040 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 34 [2019-09-10 07:36:59,574 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 41 [2019-09-10 07:36:59,737 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 35 [2019-09-10 07:37:00,577 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 40 [2019-09-10 07:37:00,794 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 32 [2019-09-10 07:37:01,086 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 32 [2019-09-10 07:37:01,556 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 43 [2019-09-10 07:37:01,737 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 40 [2019-09-10 07:37:01,933 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 41 [2019-09-10 07:37:02,294 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 39 [2019-09-10 07:37:02,466 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 36 [2019-09-10 07:37:02,663 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 37 [2019-09-10 07:37:02,837 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 45 [2019-09-10 07:37:03,029 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 46 [2019-09-10 07:37:03,201 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 43 [2019-09-10 07:37:03,543 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 42 [2019-09-10 07:37:04,919 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 44 [2019-09-10 07:37:05,082 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 41 [2019-09-10 07:37:05,244 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 40 [2019-09-10 07:37:06,981 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 44 [2019-09-10 07:37:07,260 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 41 [2019-09-10 07:37:07,578 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 40 [2019-09-10 07:37:07,751 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 37 [2019-09-10 07:37:08,106 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 46 [2019-09-10 07:37:08,266 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 43 [2019-09-10 07:37:10,091 WARN L188 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 79 DAG size of output: 39 [2019-09-10 07:37:10,591 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 34 [2019-09-10 07:37:10,914 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 40 [2019-09-10 07:37:11,544 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 37 [2019-09-10 07:37:11,719 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 45 [2019-09-10 07:37:11,965 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 41 [2019-09-10 07:37:12,187 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 42 [2019-09-10 07:37:12,395 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 39 [2019-09-10 07:37:12,588 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 33 [2019-09-10 07:37:12,917 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 38 [2019-09-10 07:37:13,259 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 43 [2019-09-10 07:37:13,427 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 39 [2019-09-10 07:37:13,903 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 41 [2019-09-10 07:37:14,103 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 47 [2019-09-10 07:37:14,323 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 48 [2019-09-10 07:37:14,508 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 45 [2019-09-10 07:37:14,685 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 43 [2019-09-10 07:37:14,858 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 44 [2019-09-10 07:37:15,027 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 41 [2019-09-10 07:37:15,206 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 36 [2019-09-10 07:37:15,686 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 44 [2019-09-10 07:37:15,841 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 35 [2019-09-10 07:37:16,165 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 40 [2019-09-10 07:37:16,915 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 43 [2019-09-10 07:37:17,120 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 35 [2019-09-10 07:37:17,799 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 47 [2019-09-10 07:37:18,001 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 47 [2019-09-10 07:37:18,237 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 48 [2019-09-10 07:37:18,446 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 45 [2019-09-10 07:37:18,627 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 45 [2019-09-10 07:37:18,938 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 46 [2019-09-10 07:37:19,098 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 43 [2019-09-10 07:37:19,265 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 42 [2019-09-10 07:37:19,450 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2019-09-10 07:37:19,615 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 38 [2019-09-10 07:37:19,986 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 44 [2019-09-10 07:37:20,433 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 42 [2019-09-10 07:37:21,568 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 32 [2019-09-10 07:37:21,764 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2019-09-10 07:37:21,932 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2019-09-10 07:37:22,159 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 43 [2019-09-10 07:37:22,518 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 49 [2019-09-10 07:37:22,863 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 41 [2019-09-10 07:37:23,075 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 46 [2019-09-10 07:37:23,280 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 43 [2019-09-10 07:37:23,475 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 42 [2019-09-10 07:37:23,624 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 40 [2019-09-10 07:37:23,804 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 37 [2019-09-10 07:37:23,991 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 41 [2019-09-10 07:37:24,367 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 38 [2019-09-10 07:37:25,757 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 32 [2019-09-10 07:37:25,944 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 42 [2019-09-10 07:37:26,483 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 41 [2019-09-10 07:37:26,696 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 49 [2019-09-10 07:37:27,196 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2019-09-10 07:37:27,414 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 35 [2019-09-10 07:37:28,733 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 48 [2019-09-10 07:37:28,946 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 38 [2019-09-10 07:37:29,128 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 45 [2019-09-10 07:37:29,285 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2019-09-10 07:37:29,464 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2019-09-10 07:37:29,676 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 48 [2019-09-10 07:37:30,049 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2019-09-10 07:37:30,688 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 35 [2019-09-10 07:37:31,755 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 45 [2019-09-10 07:37:31,923 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2019-09-10 07:37:32,088 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 42 [2019-09-10 07:37:32,240 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 32 [2019-09-10 07:37:32,602 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 44 [2019-09-10 07:37:32,830 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 41 [2019-09-10 07:37:33,249 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 44 [2019-09-10 07:37:33,489 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 50 [2019-09-10 07:37:33,680 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 44 [2019-09-10 07:37:33,913 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 41 [2019-09-10 07:37:34,094 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 42 [2019-09-10 07:37:35,642 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 41 [2019-09-10 07:37:35,831 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 38 [2019-09-10 07:37:36,246 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 50 [2019-09-10 07:37:36,466 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2019-09-10 07:37:36,653 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 38 [2019-09-10 07:37:36,814 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 38 [2019-09-10 07:37:37,004 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 35 [2019-09-10 07:37:37,835 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 44 [2019-09-10 07:37:40,083 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 37 [2019-09-10 07:37:40,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:37:40,446 INFO L93 Difference]: Finished difference Result 356429 states and 454218 transitions. [2019-09-10 07:37:40,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 364 states. [2019-09-10 07:37:40,447 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 107 [2019-09-10 07:37:40,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:37:40,824 INFO L225 Difference]: With dead ends: 356429 [2019-09-10 07:37:40,824 INFO L226 Difference]: Without dead ends: 356429 [2019-09-10 07:37:40,829 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 193 SyntacticMatches, 2 SemanticMatches, 392 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63401 ImplicationChecksByTransitivity, 56.7s TimeCoverageRelationStatistics Valid=17495, Invalid=137347, Unknown=0, NotChecked=0, Total=154842 [2019-09-10 07:37:41,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356429 states. [2019-09-10 07:37:43,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356429 to 119399. [2019-09-10 07:37:43,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119399 states. [2019-09-10 07:37:43,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119399 states to 119399 states and 155432 transitions. [2019-09-10 07:37:43,271 INFO L78 Accepts]: Start accepts. Automaton has 119399 states and 155432 transitions. Word has length 107 [2019-09-10 07:37:43,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:37:43,271 INFO L475 AbstractCegarLoop]: Abstraction has 119399 states and 155432 transitions. [2019-09-10 07:37:43,272 INFO L476 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-09-10 07:37:43,272 INFO L276 IsEmpty]: Start isEmpty. Operand 119399 states and 155432 transitions. [2019-09-10 07:37:43,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 07:37:43,283 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:37:43,283 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:37:43,283 INFO L418 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:37:43,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:37:43,284 INFO L82 PathProgramCache]: Analyzing trace with hash 2000874528, now seen corresponding path program 1 times [2019-09-10 07:37:43,284 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:37:43,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:37:43,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:37:43,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:37:43,285 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:37:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:37:43,643 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:37:43,644 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:37:43,644 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:37:43,644 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2019-09-10 07:37:43,644 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [58], [61], [64], [66], [70], [73], [76], [78], [82], [85], [88], [90], [93], [97], [100], [103], [107], [110], [113], [116], [119], [121], [124], [127], [130], [132], [135], [138], [143], [146], [150], [153], [156], [160], [162], [165], [168], [171], [174], [176], [178], [181], [184], [189], [191], [194], [197], [202], [204], [207], [214], [216], [218], [221], [222], [224], [233], [236], [240], [242], [245], [251], [254], [257], [259], [267], [270], [276], [279], [282], [284], [301], [304], [307], [309], [328], [333], [390], [391], [395], [396], [397] [2019-09-10 07:37:43,646 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:37:43,646 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:37:43,657 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:37:43,858 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:37:43,858 INFO L272 AbstractInterpreter]: Visited 101 different actions 455 times. Merged at 41 different actions 314 times. Widened at 14 different actions 44 times. Performed 1700 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1700 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 37 fixpoints after 14 different actions. Largest state had 119 variables. [2019-09-10 07:37:43,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:37:43,859 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:37:43,859 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:37:43,859 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:37:43,887 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:37:43,887 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:37:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:37:44,031 INFO L256 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 29 conjunts are in the unsatisfiable core [2019-09-10 07:37:44,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:37:44,234 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:44,646 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:44,710 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:45,120 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:45,568 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:37:45,568 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:37:45,958 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:45,959 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:45,959 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:46,480 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:46,481 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:46,482 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:46,483 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:46,483 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:46,631 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:46,631 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:46,632 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:47,346 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:37:47,350 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:37:47,351 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 46 [2019-09-10 07:37:47,351 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:37:47,352 INFO L454 AbstractCegarLoop]: Interpolant automaton has 32 states [2019-09-10 07:37:47,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2019-09-10 07:37:47,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1872, Unknown=0, NotChecked=0, Total=2070 [2019-09-10 07:37:47,352 INFO L87 Difference]: Start difference. First operand 119399 states and 155432 transitions. Second operand 32 states. [2019-09-10 07:37:48,931 WARN L188 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 32 DAG size of output: 32 [2019-09-10 07:37:51,993 WARN L188 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 42 [2019-09-10 07:37:52,984 WARN L188 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2019-09-10 07:37:53,798 WARN L188 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2019-09-10 07:37:55,074 WARN L188 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2019-09-10 07:37:56,628 WARN L188 SmtUtils]: Spent 882.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-09-10 07:37:56,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:37:56,986 INFO L93 Difference]: Finished difference Result 208984 states and 270845 transitions. [2019-09-10 07:37:56,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-09-10 07:37:56,987 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 108 [2019-09-10 07:37:56,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:37:57,208 INFO L225 Difference]: With dead ends: 208984 [2019-09-10 07:37:57,208 INFO L226 Difference]: Without dead ends: 208984 [2019-09-10 07:37:57,209 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 173 SyntacticMatches, 15 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1358 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=739, Invalid=4091, Unknown=0, NotChecked=0, Total=4830 [2019-09-10 07:37:57,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208984 states. [2019-09-10 07:37:58,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208984 to 147710. [2019-09-10 07:37:58,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147710 states. [2019-09-10 07:37:58,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147710 states to 147710 states and 192235 transitions. [2019-09-10 07:37:58,699 INFO L78 Accepts]: Start accepts. Automaton has 147710 states and 192235 transitions. Word has length 108 [2019-09-10 07:37:58,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:37:58,699 INFO L475 AbstractCegarLoop]: Abstraction has 147710 states and 192235 transitions. [2019-09-10 07:37:58,699 INFO L476 AbstractCegarLoop]: Interpolant automaton has 32 states. [2019-09-10 07:37:58,699 INFO L276 IsEmpty]: Start isEmpty. Operand 147710 states and 192235 transitions. [2019-09-10 07:37:58,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 07:37:58,711 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:37:58,711 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:37:58,712 INFO L418 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:37:58,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:37:58,712 INFO L82 PathProgramCache]: Analyzing trace with hash 339641479, now seen corresponding path program 1 times [2019-09-10 07:37:58,712 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:37:58,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:37:58,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:37:58,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:37:58,713 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:37:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:37:59,095 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:37:59,095 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:37:59,095 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:37:59,096 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2019-09-10 07:37:59,096 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [58], [61], [64], [66], [70], [73], [76], [78], [82], [85], [88], [90], [93], [97], [100], [103], [107], [110], [113], [116], [119], [121], [124], [127], [132], [135], [138], [141], [143], [146], [150], [153], [156], [160], [162], [165], [168], [171], [176], [178], [181], [184], [189], [191], [194], [197], [200], [202], [204], [207], [214], [216], [218], [221], [222], [224], [233], [236], [240], [251], [254], [257], [259], [267], [270], [276], [279], [282], [284], [292], [295], [301], [304], [307], [309], [338], [343], [390], [391], [395], [396], [397] [2019-09-10 07:37:59,097 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:37:59,098 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:37:59,109 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:37:59,920 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:37:59,921 INFO L272 AbstractInterpreter]: Visited 101 different actions 418 times. Merged at 41 different actions 283 times. Widened at 11 different actions 30 times. Performed 1563 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1563 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 31 fixpoints after 12 different actions. Largest state had 119 variables. [2019-09-10 07:37:59,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:37:59,921 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:37:59,921 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:37:59,922 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:37:59,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:37:59,937 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:38:00,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:38:00,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 41 conjunts are in the unsatisfiable core [2019-09-10 07:38:00,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:38:00,341 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:00,400 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:00,651 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:00,761 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:00,982 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:38:00,983 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:38:01,328 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:01,828 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:02,287 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 41 [2019-09-10 07:38:02,288 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:02,289 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:02,289 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:02,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:02,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:02,291 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:02,292 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:02,292 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:02,293 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:02,293 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:02,294 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:02,294 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:02,295 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:02,295 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:02,295 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:02,633 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 37 [2019-09-10 07:38:04,008 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-10 07:38:04,150 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:38:04,154 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:38:04,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 21, 21] total 53 [2019-09-10 07:38:04,154 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:38:04,155 INFO L454 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-09-10 07:38:04,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-09-10 07:38:04,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=2461, Unknown=0, NotChecked=0, Total=2756 [2019-09-10 07:38:04,156 INFO L87 Difference]: Start difference. First operand 147710 states and 192235 transitions. Second operand 34 states. [2019-09-10 07:38:13,586 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 39 [2019-09-10 07:38:15,851 WARN L188 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 49 DAG size of output: 41 [2019-09-10 07:38:21,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:38:21,190 INFO L93 Difference]: Finished difference Result 343231 states and 444296 transitions. [2019-09-10 07:38:21,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2019-09-10 07:38:21,190 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 108 [2019-09-10 07:38:21,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:38:21,580 INFO L225 Difference]: With dead ends: 343231 [2019-09-10 07:38:21,580 INFO L226 Difference]: Without dead ends: 343231 [2019-09-10 07:38:21,582 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 166 SyntacticMatches, 15 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10751 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=4871, Invalid=27709, Unknown=0, NotChecked=0, Total=32580 [2019-09-10 07:38:21,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343231 states. [2019-09-10 07:38:24,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343231 to 172753. [2019-09-10 07:38:24,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172753 states. [2019-09-10 07:38:24,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172753 states to 172753 states and 224809 transitions. [2019-09-10 07:38:24,301 INFO L78 Accepts]: Start accepts. Automaton has 172753 states and 224809 transitions. Word has length 108 [2019-09-10 07:38:24,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:38:24,302 INFO L475 AbstractCegarLoop]: Abstraction has 172753 states and 224809 transitions. [2019-09-10 07:38:24,302 INFO L476 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-09-10 07:38:24,302 INFO L276 IsEmpty]: Start isEmpty. Operand 172753 states and 224809 transitions. [2019-09-10 07:38:24,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 07:38:24,313 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:38:24,313 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:38:24,314 INFO L418 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:38:24,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:38:24,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1691858341, now seen corresponding path program 1 times [2019-09-10 07:38:24,314 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:38:24,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:38:24,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:38:24,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:38:24,316 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:38:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:38:24,367 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:38:24,368 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:38:24,368 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:38:24,368 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:38:24,368 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:38:24,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:38:24,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:38:24,369 INFO L87 Difference]: Start difference. First operand 172753 states and 224809 transitions. Second operand 3 states. [2019-09-10 07:38:24,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:38:24,791 INFO L93 Difference]: Finished difference Result 166920 states and 210141 transitions. [2019-09-10 07:38:24,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:38:24,791 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2019-09-10 07:38:24,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:38:25,006 INFO L225 Difference]: With dead ends: 166920 [2019-09-10 07:38:25,006 INFO L226 Difference]: Without dead ends: 166920 [2019-09-10 07:38:25,007 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:38:25,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166920 states. [2019-09-10 07:38:29,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166920 to 154892. [2019-09-10 07:38:29,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154892 states. [2019-09-10 07:38:29,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154892 states to 154892 states and 196906 transitions. [2019-09-10 07:38:29,420 INFO L78 Accepts]: Start accepts. Automaton has 154892 states and 196906 transitions. Word has length 108 [2019-09-10 07:38:29,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:38:29,420 INFO L475 AbstractCegarLoop]: Abstraction has 154892 states and 196906 transitions. [2019-09-10 07:38:29,420 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:38:29,420 INFO L276 IsEmpty]: Start isEmpty. Operand 154892 states and 196906 transitions. [2019-09-10 07:38:29,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 07:38:29,429 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:38:29,430 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:38:29,430 INFO L418 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:38:29,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:38:29,430 INFO L82 PathProgramCache]: Analyzing trace with hash 56407525, now seen corresponding path program 1 times [2019-09-10 07:38:29,430 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:38:29,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:38:29,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:38:29,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:38:29,431 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:38:29,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:38:29,823 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:38:29,823 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:38:29,824 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:38:29,824 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2019-09-10 07:38:29,824 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [58], [61], [64], [66], [70], [73], [76], [78], [82], [85], [88], [90], [93], [97], [100], [103], [107], [110], [113], [116], [121], [124], [127], [130], [132], [135], [138], [141], [143], [146], [150], [153], [156], [160], [162], [165], [168], [171], [176], [178], [181], [184], [187], [189], [191], [194], [197], [202], [204], [207], [214], [216], [218], [221], [222], [224], [233], [236], [240], [242], [245], [251], [254], [257], [259], [276], [279], [282], [284], [292], [295], [301], [304], [307], [309], [348], [353], [390], [391], [395], [396], [397] [2019-09-10 07:38:29,826 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:38:29,827 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:38:29,839 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:38:30,008 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:38:30,009 INFO L272 AbstractInterpreter]: Visited 101 different actions 391 times. Merged at 41 different actions 257 times. Widened at 10 different actions 23 times. Performed 1476 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1476 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 27 fixpoints after 9 different actions. Largest state had 119 variables. [2019-09-10 07:38:30,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:38:30,009 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:38:30,009 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:38:30,009 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:38:30,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:38:30,043 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:38:30,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:38:30,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 31 conjunts are in the unsatisfiable core [2019-09-10 07:38:30,169 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:38:30,703 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:30,770 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:30,860 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:31,139 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:31,534 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:38:31,535 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:38:31,971 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:31,972 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:31,972 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:32,845 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:32,935 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:32,936 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:32,936 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:33,235 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-10 07:38:33,236 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:33,236 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:33,237 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:34,648 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-10 07:38:34,893 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:38:34,897 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:38:34,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19, 19] total 51 [2019-09-10 07:38:34,898 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:38:34,898 INFO L454 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-09-10 07:38:34,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-09-10 07:38:34,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=2339, Unknown=0, NotChecked=0, Total=2550 [2019-09-10 07:38:34,899 INFO L87 Difference]: Start difference. First operand 154892 states and 196906 transitions. Second operand 35 states. [2019-09-10 07:38:35,078 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-10 07:38:44,838 WARN L188 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-09-10 07:38:47,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:38:47,393 INFO L93 Difference]: Finished difference Result 264098 states and 334978 transitions. [2019-09-10 07:38:47,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-09-10 07:38:47,394 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 108 [2019-09-10 07:38:47,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:38:47,677 INFO L225 Difference]: With dead ends: 264098 [2019-09-10 07:38:47,678 INFO L226 Difference]: Without dead ends: 264098 [2019-09-10 07:38:47,678 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 158 SyntacticMatches, 26 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1880 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=558, Invalid=4272, Unknown=0, NotChecked=0, Total=4830 [2019-09-10 07:38:47,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264098 states. [2019-09-10 07:38:52,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264098 to 178131. [2019-09-10 07:38:52,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178131 states. [2019-09-10 07:38:52,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178131 states to 178131 states and 226525 transitions. [2019-09-10 07:38:52,747 INFO L78 Accepts]: Start accepts. Automaton has 178131 states and 226525 transitions. Word has length 108 [2019-09-10 07:38:52,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:38:52,747 INFO L475 AbstractCegarLoop]: Abstraction has 178131 states and 226525 transitions. [2019-09-10 07:38:52,747 INFO L476 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-09-10 07:38:52,747 INFO L276 IsEmpty]: Start isEmpty. Operand 178131 states and 226525 transitions. [2019-09-10 07:38:52,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 07:38:52,756 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:38:52,756 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:38:52,756 INFO L418 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:38:52,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:38:52,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1329887848, now seen corresponding path program 1 times [2019-09-10 07:38:52,757 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:38:52,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:38:52,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:38:52,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:38:52,758 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:38:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:38:53,209 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:38:53,210 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:38:53,210 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:38:53,210 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 110 with the following transitions: [2019-09-10 07:38:53,210 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [58], [61], [64], [66], [70], [73], [76], [78], [82], [85], [88], [90], [93], [97], [100], [103], [107], [110], [113], [116], [119], [121], [124], [127], [130], [132], [135], [138], [143], [146], [150], [153], [156], [160], [162], [165], [168], [171], [174], [176], [178], [181], [184], [187], [189], [191], [194], [197], [202], [204], [207], [214], [216], [218], [221], [222], [224], [233], [236], [238], [242], [245], [251], [254], [257], [259], [276], [279], [282], [284], [301], [304], [307], [309], [328], [333], [390], [391], [395], [396], [397] [2019-09-10 07:38:53,212 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:38:53,212 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:38:53,223 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:38:53,461 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:38:53,462 INFO L272 AbstractInterpreter]: Visited 100 different actions 506 times. Merged at 40 different actions 362 times. Widened at 12 different actions 50 times. Performed 1867 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1867 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 41 fixpoints after 15 different actions. Largest state had 119 variables. [2019-09-10 07:38:53,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:38:53,462 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:38:53,462 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:38:53,462 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:38:53,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:38:53,476 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:38:53,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:38:53,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 49 conjunts are in the unsatisfiable core [2019-09-10 07:38:53,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:38:54,081 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:55,028 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:55,518 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:38:55,518 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:38:56,617 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2019-09-10 07:38:57,019 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 40 [2019-09-10 07:38:57,467 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:57,468 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:57,468 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:57,492 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:57,547 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:57,548 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:57,676 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:58,262 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 36 [2019-09-10 07:38:58,843 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:38:58,851 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:38:58,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 27, 26] total 67 [2019-09-10 07:38:58,852 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:38:58,852 INFO L454 AbstractCegarLoop]: Interpolant automaton has 44 states [2019-09-10 07:38:58,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2019-09-10 07:38:58,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=284, Invalid=4138, Unknown=0, NotChecked=0, Total=4422 [2019-09-10 07:38:58,853 INFO L87 Difference]: Start difference. First operand 178131 states and 226525 transitions. Second operand 44 states. [2019-09-10 07:39:00,892 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-10 07:39:01,233 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-09-10 07:39:01,615 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-10 07:39:01,982 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2019-09-10 07:39:03,691 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2019-09-10 07:39:04,153 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2019-09-10 07:39:04,601 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 07:39:07,050 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-10 07:39:07,673 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-10 07:39:08,133 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-10 07:39:08,669 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-10 07:39:09,171 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 83 [2019-09-10 07:39:09,677 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2019-09-10 07:39:10,222 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 76 [2019-09-10 07:39:11,872 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-09-10 07:39:12,550 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 74 [2019-09-10 07:39:13,217 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-10 07:39:13,617 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-10 07:39:14,261 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2019-09-10 07:39:15,115 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2019-09-10 07:39:15,484 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 79 [2019-09-10 07:39:15,890 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2019-09-10 07:39:16,336 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2019-09-10 07:39:16,605 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-09-10 07:39:17,037 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 84 [2019-09-10 07:39:17,462 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-09-10 07:39:17,807 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-10 07:39:18,059 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-10 07:39:18,446 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-10 07:39:18,763 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2019-09-10 07:39:19,045 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-09-10 07:39:25,266 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:39:28,957 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2019-09-10 07:39:30,321 WARN L188 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2019-09-10 07:39:31,170 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2019-09-10 07:39:32,419 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2019-09-10 07:39:35,541 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2019-09-10 07:39:37,745 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2019-09-10 07:39:37,997 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-10 07:39:39,871 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:39:45,160 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-09-10 07:39:46,070 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2019-09-10 07:39:46,738 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-10 07:39:47,658 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:39:47,874 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-10 07:39:48,740 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2019-09-10 07:39:49,515 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-10 07:39:50,025 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2019-09-10 07:39:50,872 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-09-10 07:39:51,712 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-10 07:39:52,999 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:39:53,547 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2019-09-10 07:39:53,972 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:39:54,500 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2019-09-10 07:39:57,241 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2019-09-10 07:40:00,721 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2019-09-10 07:40:01,419 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2019-09-10 07:40:03,420 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2019-09-10 07:40:03,995 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 80 [2019-09-10 07:40:04,414 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:40:04,593 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 07:40:05,275 WARN L188 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2019-09-10 07:40:05,671 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:40:05,976 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:40:06,209 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2019-09-10 07:40:06,530 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-10 07:40:07,318 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2019-09-10 07:40:07,651 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2019-09-10 07:40:07,933 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:40:08,211 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 07:40:08,799 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2019-09-10 07:40:09,353 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-10 07:40:09,708 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:40:10,081 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-09-10 07:40:10,280 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-10 07:40:10,487 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2019-09-10 07:40:10,716 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-10 07:40:13,248 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 07:40:13,658 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-10 07:40:14,789 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-10 07:40:15,224 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-10 07:40:15,583 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2019-09-10 07:40:16,477 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:40:16,761 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2019-09-10 07:40:16,997 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 07:40:17,191 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-10 07:40:17,967 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:40:18,301 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-10 07:40:18,509 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2019-09-10 07:40:20,397 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-09-10 07:40:20,580 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2019-09-10 07:40:22,184 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2019-09-10 07:40:22,695 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-10 07:40:22,907 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 07:40:23,632 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2019-09-10 07:40:24,285 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-10 07:40:24,843 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:40:25,036 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 07:40:25,533 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-10 07:40:25,744 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2019-09-10 07:40:28,131 WARN L188 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2019-09-10 07:40:28,723 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:40:28,974 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2019-09-10 07:40:29,245 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-10 07:40:30,643 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2019-09-10 07:40:31,101 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2019-09-10 07:40:31,374 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:40:31,597 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 07:40:32,189 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:40:32,802 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-10 07:40:34,110 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2019-09-10 07:40:34,931 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-10 07:40:35,297 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:40:35,684 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-10 07:40:35,982 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2019-09-10 07:40:36,255 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-10 07:40:37,678 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2019-09-10 07:40:39,683 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 62 [2019-09-10 07:40:40,335 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:40:40,532 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 07:40:41,789 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-10 07:40:42,143 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2019-09-10 07:40:44,201 WARN L188 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 07:40:46,938 WARN L188 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-10 07:40:49,651 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-10 07:40:50,138 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:40:50,500 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2019-09-10 07:40:53,164 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:40:53,456 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:40:53,862 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:40:54,123 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-09-10 07:40:54,407 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-10 07:40:54,641 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:40:54,936 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2019-09-10 07:40:55,721 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2019-09-10 07:40:56,224 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:40:56,602 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 07:40:57,079 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:40:57,409 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:40:59,851 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-10 07:41:00,511 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 83 [2019-09-10 07:41:03,088 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 07:41:03,767 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-09-10 07:41:04,628 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2019-09-10 07:41:05,075 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-10 07:41:05,491 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2019-09-10 07:41:06,002 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2019-09-10 07:41:06,585 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2019-09-10 07:41:06,815 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 07:41:07,031 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-09-10 07:41:07,280 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-10 07:41:07,972 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-09-10 07:41:08,766 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 64 [2019-09-10 07:41:09,105 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2019-09-10 07:41:10,042 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-10 07:41:10,350 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2019-09-10 07:41:11,005 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2019-09-10 07:41:11,507 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-10 07:41:12,076 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 07:41:13,358 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:41:16,630 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 07:41:17,060 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:41:17,304 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-10 07:41:17,693 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-09-10 07:41:18,377 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2019-09-10 07:41:22,109 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2019-09-10 07:41:23,000 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2019-09-10 07:41:25,546 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2019-09-10 07:41:28,800 WARN L188 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 07:41:29,285 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2019-09-10 07:41:30,128 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 07:41:33,253 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2019-09-10 07:41:34,637 WARN L188 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2019-09-10 07:41:39,262 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:41:41,059 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-10 07:41:41,574 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2019-09-10 07:41:42,820 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2019-09-10 07:41:43,393 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 73 [2019-09-10 07:41:44,058 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2019-09-10 07:41:46,017 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-10 07:41:46,527 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 07:41:47,339 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 81 [2019-09-10 07:41:49,569 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2019-09-10 07:41:49,942 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2019-09-10 07:41:51,072 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2019-09-10 07:41:51,482 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2019-09-10 07:41:54,746 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:41:57,265 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:41:57,669 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:41:58,180 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-10 07:41:58,661 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:41:59,135 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-10 07:41:59,411 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-10 07:42:03,800 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2019-09-10 07:42:08,612 WARN L188 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2019-09-10 07:42:09,615 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:42:09,930 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-10 07:42:13,476 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:42:15,088 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 58 [2019-09-10 07:42:18,417 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2019-09-10 07:42:26,206 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 07:42:26,708 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-09-10 07:42:28,449 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2019-09-10 07:42:30,456 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2019-09-10 07:42:30,781 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:42:31,467 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2019-09-10 07:42:36,950 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2019-09-10 07:42:38,471 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2019-09-10 07:42:40,456 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-10 07:42:45,564 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2019-09-10 07:42:48,175 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-10 07:42:49,184 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-10 07:42:51,076 WARN L188 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2019-09-10 07:42:54,530 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2019-09-10 07:42:55,187 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2019-09-10 07:42:55,885 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-09-10 07:42:58,749 WARN L188 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:43:01,828 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2019-09-10 07:43:02,221 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-10 07:43:03,305 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-09-10 07:43:03,618 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2019-09-10 07:43:06,876 WARN L188 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-10 07:43:08,436 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-10 07:43:12,976 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2019-09-10 07:43:13,615 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2019-09-10 07:43:16,256 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2019-09-10 07:43:17,853 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 70 [2019-09-10 07:43:20,603 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2019-09-10 07:43:21,348 WARN L188 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2019-09-10 07:43:25,036 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-10 07:43:28,191 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2019-09-10 07:43:29,275 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-10 07:43:31,769 WARN L188 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2019-09-10 07:43:36,640 WARN L188 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2019-09-10 07:43:37,266 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2019-09-10 07:43:37,949 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2019-09-10 07:43:41,267 WARN L188 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-09-10 07:43:42,786 WARN L188 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2019-09-10 07:43:43,811 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-09-10 07:43:44,183 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-10 07:43:44,760 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 07:43:45,720 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:43:47,358 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-10 07:43:47,837 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 07:43:48,410 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-10 07:43:49,413 WARN L188 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2019-09-10 07:43:52,076 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2019-09-10 07:43:52,521 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 59 [2019-09-10 07:43:53,417 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2019-09-10 07:43:53,964 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2019-09-10 07:43:55,466 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-10 07:43:57,657 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-10 07:44:00,400 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2019-09-10 07:44:07,507 WARN L188 SmtUtils]: Spent 4.15 s on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-10 07:44:08,388 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 07:44:08,705 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-09-10 07:44:11,256 WARN L188 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-10 07:44:14,009 WARN L188 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2019-09-10 07:44:14,863 WARN L188 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:44:15,257 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-10 07:44:16,629 WARN L188 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2019-09-10 07:44:19,064 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:44:19,398 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-10 07:44:22,137 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-10 07:44:22,813 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2019-09-10 07:44:23,285 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2019-09-10 07:44:24,234 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2019-09-10 07:44:25,042 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:44:29,071 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:44:31,066 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-10 07:44:32,311 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2019-09-10 07:44:36,241 WARN L188 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-10 07:44:36,898 WARN L188 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2019-09-10 07:44:40,846 WARN L188 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-10 07:44:42,001 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2019-09-10 07:44:46,737 WARN L188 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2019-09-10 07:44:47,520 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-10 07:44:48,621 WARN L188 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2019-09-10 07:44:49,301 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2019-09-10 07:44:49,643 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2019-09-10 07:44:50,359 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2019-09-10 07:44:53,044 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2019-09-10 07:44:54,117 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-10 07:44:55,103 WARN L188 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2019-09-10 07:44:56,256 WARN L188 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2019-09-10 07:44:56,565 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:44:57,837 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2019-09-10 07:44:58,570 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:44:58,886 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-10 07:45:04,230 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-09-10 07:45:05,976 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2019-09-10 07:45:07,019 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2019-09-10 07:45:12,391 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-10 07:45:13,806 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2019-09-10 07:45:17,279 WARN L188 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2019-09-10 07:45:17,966 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2019-09-10 07:45:18,295 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-10 07:45:28,095 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-09-10 07:45:33,555 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2019-09-10 07:45:34,849 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2019-09-10 07:45:35,268 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2019-09-10 07:45:37,988 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2019-09-10 07:45:38,309 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2019-09-10 07:45:38,555 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-10 07:45:40,030 WARN L188 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2019-09-10 07:45:40,506 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:45:41,898 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2019-09-10 07:45:42,873 WARN L188 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-10 07:45:43,171 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 07:45:43,774 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-10 07:45:46,567 WARN L188 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:45:47,131 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2019-09-10 07:45:47,419 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2019-09-10 07:45:47,957 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:45:50,994 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2019-09-10 07:45:51,461 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-10 07:45:52,549 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 07:45:52,895 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2019-09-10 07:45:55,534 WARN L188 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2019-09-10 07:45:55,807 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 07:45:56,559 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2019-09-10 07:45:56,788 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2019-09-10 07:45:57,288 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2019-09-10 07:45:57,516 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-09-10 07:45:57,994 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2019-09-10 07:45:58,444 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-09-10 07:45:59,183 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2019-09-10 07:46:00,121 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:46:00,358 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:46:00,553 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 07:46:00,749 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-10 07:46:01,479 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2019-09-10 07:46:04,544 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2019-09-10 07:46:05,741 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2019-09-10 07:46:06,258 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-10 07:46:06,693 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 07:46:07,185 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:46:07,484 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2019-09-10 07:46:08,476 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2019-09-10 07:46:10,513 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2019-09-10 07:46:10,896 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2019-09-10 07:46:12,023 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-10 07:46:12,530 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2019-09-10 07:46:12,870 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2019-09-10 07:46:13,424 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-10 07:46:14,502 WARN L188 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 07:46:14,828 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-10 07:46:15,515 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-10 07:46:18,268 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-10 07:46:18,640 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2019-09-10 07:46:19,258 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:46:19,610 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2019-09-10 07:46:19,983 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2019-09-10 07:46:20,427 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-10 07:46:20,799 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-10 07:46:21,361 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-10 07:46:22,345 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-10 07:46:23,227 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:46:23,559 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:46:23,992 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:46:24,266 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 07:46:24,906 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-10 07:46:25,645 WARN L188 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2019-09-10 07:46:26,343 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:46:26,717 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2019-09-10 07:46:29,651 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 07:46:31,959 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-10 07:46:32,346 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:46:33,007 WARN L188 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2019-09-10 07:46:33,394 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 07:46:34,736 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2019-09-10 07:46:37,278 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:46:38,246 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-10 07:46:38,564 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-10 07:46:39,383 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 75 [2019-09-10 07:46:40,321 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-10 07:46:40,769 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2019-09-10 07:46:41,152 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 07:46:41,730 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2019-09-10 07:46:43,250 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2019-09-10 07:46:43,618 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-10 07:46:43,927 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2019-09-10 07:46:44,330 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:46:44,639 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:46:47,546 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-10 07:46:48,672 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 07:46:49,109 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-10 07:46:49,626 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:46:50,206 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-10 07:46:50,846 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:46:51,110 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:46:51,343 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-10 07:46:51,540 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-09-10 07:46:53,122 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 62 [2019-09-10 07:46:53,553 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:46:54,145 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-10 07:47:02,791 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2019-09-10 07:47:03,441 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:47:03,879 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2019-09-10 07:47:04,480 WARN L188 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-10 07:47:05,188 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-09-10 07:47:06,451 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2019-09-10 07:47:07,079 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-10 07:47:09,492 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 07:47:10,656 WARN L188 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-10 07:47:11,342 WARN L188 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-10 07:47:12,197 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2019-09-10 07:47:14,214 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 56