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.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 07:26:53,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 07:26:53,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 07:26:53,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-10 07:26:53,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 07:26:53,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 07:26:53,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 07:26:53,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 07:26:53,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 07:26:53,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 07:26:53,385 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 07:26:53,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 07:26:53,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 07:26:53,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 07:26:53,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 07:26:53,390 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 07:26:53,429 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 07:26:53,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 07:26:53,430 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 07:26:53,430 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 07:26:53,431 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 07:26:53,434 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 07:26:53,434 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 07:26:53,435 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 07:26:53,435 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 07:26:53,435 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 07:26:53,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 07:26:53,439 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 07:26:53,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 07:26:53,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 07:26:53,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 07:26:53,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 07:26:53,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 07:26:53,440 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 07:26:53,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 07:26:53,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 07:26:53,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 07:26:53,441 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 07:26:53,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 07:26:53,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 07:26:53,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 07:26:53,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 07:26:53,443 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 07:26:53,443 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 07:26:53,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 07:26:53,443 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 07:26:53,479 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 07:26:53,495 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 07:26:53,498 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 07:26:53,500 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 07:26:53,501 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 07:26:53,502 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2019-09-10 07:26:53,574 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cef83dc4/ec6da1c69d9440d1ae145686693ec3e9/FLAG2ac8e5de7 [2019-09-10 07:26:54,161 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 07:26:54,161 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2019-09-10 07:26:54,174 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cef83dc4/ec6da1c69d9440d1ae145686693ec3e9/FLAG2ac8e5de7 [2019-09-10 07:26:54,389 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cef83dc4/ec6da1c69d9440d1ae145686693ec3e9 [2019-09-10 07:26:54,398 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 07:26:54,400 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 07:26:54,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 07:26:54,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 07:26:54,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 07:26:54,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 07:26:54" (1/1) ... [2019-09-10 07:26:54,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e21f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:26:54, skipping insertion in model container [2019-09-10 07:26:54,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 07:26:54" (1/1) ... [2019-09-10 07:26:54,415 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 07:26:54,472 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 07:26:54,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 07:26:54,945 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 07:26:55,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 07:26:55,100 INFO L192 MainTranslator]: Completed translation [2019-09-10 07:26:55,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:26:55 WrapperNode [2019-09-10 07:26:55,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 07:26:55,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 07:26:55,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 07:26:55,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 07:26:55,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:26:55" (1/1) ... [2019-09-10 07:26:55,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:26:55" (1/1) ... [2019-09-10 07:26:55,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:26:55" (1/1) ... [2019-09-10 07:26:55,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:26:55" (1/1) ... [2019-09-10 07:26:55,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:26:55" (1/1) ... [2019-09-10 07:26:55,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:26:55" (1/1) ... [2019-09-10 07:26:55,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:26:55" (1/1) ... [2019-09-10 07:26:55,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 07:26:55,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 07:26:55,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 07:26:55,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 07:26:55,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:26:55" (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 07:26:55,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 07:26:55,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 07:26:55,259 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 07:26:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 07:26:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-10 07:26:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-10 07:26:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-09-10 07:26:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-10 07:26:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 07:26:55,261 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-10 07:26:55,261 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-10 07:26:55,263 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-10 07:26:55,263 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-10 07:26:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-10 07:26:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-10 07:26:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-10 07:26:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 07:26:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 07:26:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 07:26:56,566 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 07:26:56,567 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 07:26:56,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 07:26:56 BoogieIcfgContainer [2019-09-10 07:26:56,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 07:26:56,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 07:26:56,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 07:26:56,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 07:26:56,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 07:26:54" (1/3) ... [2019-09-10 07:26:56,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e265b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 07:26:56, skipping insertion in model container [2019-09-10 07:26:56,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:26:55" (2/3) ... [2019-09-10 07:26:56,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e265b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 07:26:56, skipping insertion in model container [2019-09-10 07:26:56,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 07:26:56" (3/3) ... [2019-09-10 07:26:56,578 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2019-09-10 07:26:56,589 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 07:26:56,598 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-09-10 07:26:56,616 INFO L252 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-09-10 07:26:56,657 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 07:26:56,658 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 07:26:56,658 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 07:26:56,658 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 07:26:56,658 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 07:26:56,659 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 07:26:56,659 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 07:26:56,659 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 07:26:56,683 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2019-09-10 07:26:56,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-09-10 07:26:56,698 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:26:56,700 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] [2019-09-10 07:26:56,701 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:26:56,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:26:56,706 INFO L82 PathProgramCache]: Analyzing trace with hash 2131533676, now seen corresponding path program 1 times [2019-09-10 07:26:56,708 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:26:56,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:56,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:26:56,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:56,761 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:26:56,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:26:57,198 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 07:26:57,201 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:26:57,201 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:26:57,202 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:26:57,211 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:26:57,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:26:57,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:26:57,230 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 5 states. [2019-09-10 07:26:57,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:26:57,635 INFO L93 Difference]: Finished difference Result 274 states and 437 transitions. [2019-09-10 07:26:57,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:26:57,637 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2019-09-10 07:26:57,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:26:57,653 INFO L225 Difference]: With dead ends: 274 [2019-09-10 07:26:57,654 INFO L226 Difference]: Without dead ends: 262 [2019-09-10 07:26:57,656 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 07:26:57,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2019-09-10 07:26:57,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 238. [2019-09-10 07:26:57,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2019-09-10 07:26:57,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 311 transitions. [2019-09-10 07:26:57,749 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 311 transitions. Word has length 50 [2019-09-10 07:26:57,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:26:57,749 INFO L475 AbstractCegarLoop]: Abstraction has 238 states and 311 transitions. [2019-09-10 07:26:57,749 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:26:57,750 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 311 transitions. [2019-09-10 07:26:57,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-10 07:26:57,752 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:26:57,753 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:26:57,753 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:26:57,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:26:57,754 INFO L82 PathProgramCache]: Analyzing trace with hash -808666982, now seen corresponding path program 1 times [2019-09-10 07:26:57,754 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:26:57,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:57,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:26:57,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:57,756 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:26:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:26:57,957 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 07:26:57,957 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:26:57,957 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:26:57,957 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:26:57,964 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:26:57,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:26:57,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:26:57,965 INFO L87 Difference]: Start difference. First operand 238 states and 311 transitions. Second operand 5 states. [2019-09-10 07:26:58,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:26:58,184 INFO L93 Difference]: Finished difference Result 228 states and 297 transitions. [2019-09-10 07:26:58,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:26:58,184 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2019-09-10 07:26:58,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:26:58,187 INFO L225 Difference]: With dead ends: 228 [2019-09-10 07:26:58,188 INFO L226 Difference]: Without dead ends: 228 [2019-09-10 07:26:58,188 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 07:26:58,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2019-09-10 07:26:58,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2019-09-10 07:26:58,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2019-09-10 07:26:58,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 297 transitions. [2019-09-10 07:26:58,202 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 297 transitions. Word has length 51 [2019-09-10 07:26:58,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:26:58,202 INFO L475 AbstractCegarLoop]: Abstraction has 228 states and 297 transitions. [2019-09-10 07:26:58,203 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:26:58,203 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 297 transitions. [2019-09-10 07:26:58,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 07:26:58,205 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:26:58,206 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 07:26:58,206 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:26:58,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:26:58,207 INFO L82 PathProgramCache]: Analyzing trace with hash -215759242, now seen corresponding path program 1 times [2019-09-10 07:26:58,207 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:26:58,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:58,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:26:58,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:58,210 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:26:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:26:58,358 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 07:26:58,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:26:58,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:26:58,359 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:26:58,361 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:26:58,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:26:58,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:26:58,363 INFO L87 Difference]: Start difference. First operand 228 states and 297 transitions. Second operand 5 states. [2019-09-10 07:26:58,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:26:58,523 INFO L93 Difference]: Finished difference Result 220 states and 286 transitions. [2019-09-10 07:26:58,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:26:58,525 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2019-09-10 07:26:58,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:26:58,528 INFO L225 Difference]: With dead ends: 220 [2019-09-10 07:26:58,528 INFO L226 Difference]: Without dead ends: 220 [2019-09-10 07:26:58,529 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 07:26:58,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2019-09-10 07:26:58,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2019-09-10 07:26:58,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2019-09-10 07:26:58,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 286 transitions. [2019-09-10 07:26:58,549 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 286 transitions. Word has length 52 [2019-09-10 07:26:58,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:26:58,549 INFO L475 AbstractCegarLoop]: Abstraction has 220 states and 286 transitions. [2019-09-10 07:26:58,550 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:26:58,550 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 286 transitions. [2019-09-10 07:26:58,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-09-10 07:26:58,555 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:26:58,555 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 07:26:58,556 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:26:58,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:26:58,556 INFO L82 PathProgramCache]: Analyzing trace with hash 2143272380, now seen corresponding path program 1 times [2019-09-10 07:26:58,557 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:26:58,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:58,561 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:26:58,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:58,562 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:26:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:26:58,773 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 07:26:58,773 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:26:58,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 07:26:58,774 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:26:58,774 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 07:26:58,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 07:26:58,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-10 07:26:58,775 INFO L87 Difference]: Start difference. First operand 220 states and 286 transitions. Second operand 9 states. [2019-09-10 07:26:59,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:26:59,580 INFO L93 Difference]: Finished difference Result 530 states and 734 transitions. [2019-09-10 07:26:59,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 07:26:59,580 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 53 [2019-09-10 07:26:59,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:26:59,584 INFO L225 Difference]: With dead ends: 530 [2019-09-10 07:26:59,585 INFO L226 Difference]: Without dead ends: 530 [2019-09-10 07:26:59,585 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2019-09-10 07:26:59,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2019-09-10 07:26:59,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 220. [2019-09-10 07:26:59,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2019-09-10 07:26:59,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 285 transitions. [2019-09-10 07:26:59,620 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 285 transitions. Word has length 53 [2019-09-10 07:26:59,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:26:59,620 INFO L475 AbstractCegarLoop]: Abstraction has 220 states and 285 transitions. [2019-09-10 07:26:59,621 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 07:26:59,621 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 285 transitions. [2019-09-10 07:26:59,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-09-10 07:26:59,622 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:26:59,622 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:26:59,623 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:26:59,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:26:59,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1585839580, now seen corresponding path program 1 times [2019-09-10 07:26:59,624 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:26:59,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:59,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:26:59,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:59,626 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:26:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:26:59,795 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 07:26:59,795 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:26:59,795 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 07:26:59,796 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:26:59,796 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 07:26:59,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 07:26:59,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-10 07:26:59,797 INFO L87 Difference]: Start difference. First operand 220 states and 285 transitions. Second operand 9 states. [2019-09-10 07:27:00,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:00,824 INFO L93 Difference]: Finished difference Result 526 states and 726 transitions. [2019-09-10 07:27:00,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-09-10 07:27:00,824 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 53 [2019-09-10 07:27:00,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:00,828 INFO L225 Difference]: With dead ends: 526 [2019-09-10 07:27:00,828 INFO L226 Difference]: Without dead ends: 526 [2019-09-10 07:27:00,829 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2019-09-10 07:27:00,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2019-09-10 07:27:00,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 220. [2019-09-10 07:27:00,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2019-09-10 07:27:00,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 284 transitions. [2019-09-10 07:27:00,842 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 284 transitions. Word has length 53 [2019-09-10 07:27:00,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:00,842 INFO L475 AbstractCegarLoop]: Abstraction has 220 states and 284 transitions. [2019-09-10 07:27:00,842 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 07:27:00,842 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 284 transitions. [2019-09-10 07:27:00,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-09-10 07:27:00,844 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:00,844 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 07:27:00,844 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:00,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:00,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1953897721, now seen corresponding path program 1 times [2019-09-10 07:27:00,845 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:00,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:00,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:00,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:00,847 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:00,971 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 07:27:00,971 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:00,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 07:27:00,972 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:00,972 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 07:27:00,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 07:27:00,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-10 07:27:00,973 INFO L87 Difference]: Start difference. First operand 220 states and 284 transitions. Second operand 8 states. [2019-09-10 07:27:01,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:01,355 INFO L93 Difference]: Finished difference Result 340 states and 444 transitions. [2019-09-10 07:27:01,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 07:27:01,357 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2019-09-10 07:27:01,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:01,359 INFO L225 Difference]: With dead ends: 340 [2019-09-10 07:27:01,360 INFO L226 Difference]: Without dead ends: 340 [2019-09-10 07:27:01,361 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-09-10 07:27:01,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2019-09-10 07:27:01,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 220. [2019-09-10 07:27:01,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2019-09-10 07:27:01,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 283 transitions. [2019-09-10 07:27:01,370 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 283 transitions. Word has length 53 [2019-09-10 07:27:01,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:01,370 INFO L475 AbstractCegarLoop]: Abstraction has 220 states and 283 transitions. [2019-09-10 07:27:01,370 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 07:27:01,371 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 283 transitions. [2019-09-10 07:27:01,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-10 07:27:01,372 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:01,372 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 07:27:01,373 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:01,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:01,373 INFO L82 PathProgramCache]: Analyzing trace with hash 136408186, now seen corresponding path program 1 times [2019-09-10 07:27:01,373 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:01,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:01,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:01,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:01,375 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:02,197 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 07:27:02,197 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:02,197 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-09-10 07:27:02,198 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:02,198 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-10 07:27:02,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-10 07:27:02,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2019-09-10 07:27:02,199 INFO L87 Difference]: Start difference. First operand 220 states and 283 transitions. Second operand 16 states. [2019-09-10 07:27:02,874 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-10 07:27:03,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:03,986 INFO L93 Difference]: Finished difference Result 387 states and 499 transitions. [2019-09-10 07:27:03,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-10 07:27:03,986 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 55 [2019-09-10 07:27:03,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:03,990 INFO L225 Difference]: With dead ends: 387 [2019-09-10 07:27:03,990 INFO L226 Difference]: Without dead ends: 387 [2019-09-10 07:27:03,991 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=194, Invalid=562, Unknown=0, NotChecked=0, Total=756 [2019-09-10 07:27:03,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2019-09-10 07:27:03,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 224. [2019-09-10 07:27:03,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2019-09-10 07:27:03,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 289 transitions. [2019-09-10 07:27:04,000 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 289 transitions. Word has length 55 [2019-09-10 07:27:04,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:04,000 INFO L475 AbstractCegarLoop]: Abstraction has 224 states and 289 transitions. [2019-09-10 07:27:04,000 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-10 07:27:04,000 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 289 transitions. [2019-09-10 07:27:04,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-10 07:27:04,002 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:04,002 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 07:27:04,002 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:04,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:04,003 INFO L82 PathProgramCache]: Analyzing trace with hash 740612440, now seen corresponding path program 1 times [2019-09-10 07:27:04,003 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:04,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:04,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:04,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:04,005 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:04,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:04,711 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 07:27:04,712 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:04,712 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-09-10 07:27:04,712 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:04,712 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-10 07:27:04,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-10 07:27:04,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2019-09-10 07:27:04,713 INFO L87 Difference]: Start difference. First operand 224 states and 289 transitions. Second operand 15 states. [2019-09-10 07:27:05,266 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2019-09-10 07:27:05,403 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2019-09-10 07:27:06,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:06,184 INFO L93 Difference]: Finished difference Result 348 states and 474 transitions. [2019-09-10 07:27:06,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-10 07:27:06,186 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 55 [2019-09-10 07:27:06,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:06,189 INFO L225 Difference]: With dead ends: 348 [2019-09-10 07:27:06,189 INFO L226 Difference]: Without dead ends: 348 [2019-09-10 07:27:06,190 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=178, Invalid=472, Unknown=0, NotChecked=0, Total=650 [2019-09-10 07:27:06,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-09-10 07:27:06,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 213. [2019-09-10 07:27:06,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2019-09-10 07:27:06,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 275 transitions. [2019-09-10 07:27:06,197 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 275 transitions. Word has length 55 [2019-09-10 07:27:06,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:06,198 INFO L475 AbstractCegarLoop]: Abstraction has 213 states and 275 transitions. [2019-09-10 07:27:06,198 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-10 07:27:06,198 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 275 transitions. [2019-09-10 07:27:06,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-10 07:27:06,199 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:06,199 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 07:27:06,200 INFO L418 AbstractCegarLoop]: === Iteration 9 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:06,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:06,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1710260461, now seen corresponding path program 1 times [2019-09-10 07:27:06,200 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:06,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:06,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:06,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:06,202 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:06,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:06,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:27:06,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:06,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 07:27:06,321 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:06,321 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 07:27:06,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 07:27:06,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-10 07:27:06,322 INFO L87 Difference]: Start difference. First operand 213 states and 275 transitions. Second operand 9 states. [2019-09-10 07:27:07,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:07,211 INFO L93 Difference]: Finished difference Result 435 states and 604 transitions. [2019-09-10 07:27:07,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-10 07:27:07,212 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2019-09-10 07:27:07,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:07,215 INFO L225 Difference]: With dead ends: 435 [2019-09-10 07:27:07,216 INFO L226 Difference]: Without dead ends: 435 [2019-09-10 07:27:07,216 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2019-09-10 07:27:07,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2019-09-10 07:27:07,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 213. [2019-09-10 07:27:07,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2019-09-10 07:27:07,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 273 transitions. [2019-09-10 07:27:07,225 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 273 transitions. Word has length 56 [2019-09-10 07:27:07,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:07,225 INFO L475 AbstractCegarLoop]: Abstraction has 213 states and 273 transitions. [2019-09-10 07:27:07,225 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 07:27:07,226 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 273 transitions. [2019-09-10 07:27:07,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-10 07:27:07,226 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:07,226 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 07:27:07,227 INFO L418 AbstractCegarLoop]: === Iteration 10 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:07,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:07,227 INFO L82 PathProgramCache]: Analyzing trace with hash -2007948800, now seen corresponding path program 1 times [2019-09-10 07:27:07,227 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:07,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:07,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:07,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:07,229 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:07,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:07,343 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 07:27:07,343 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:07,343 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 07:27:07,344 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:07,344 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 07:27:07,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 07:27:07,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-10 07:27:07,345 INFO L87 Difference]: Start difference. First operand 213 states and 273 transitions. Second operand 9 states. [2019-09-10 07:27:07,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:07,845 INFO L93 Difference]: Finished difference Result 333 states and 440 transitions. [2019-09-10 07:27:07,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-10 07:27:07,850 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2019-09-10 07:27:07,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:07,852 INFO L225 Difference]: With dead ends: 333 [2019-09-10 07:27:07,853 INFO L226 Difference]: Without dead ends: 333 [2019-09-10 07:27:07,853 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2019-09-10 07:27:07,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2019-09-10 07:27:07,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 213. [2019-09-10 07:27:07,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2019-09-10 07:27:07,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 271 transitions. [2019-09-10 07:27:07,860 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 271 transitions. Word has length 56 [2019-09-10 07:27:07,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:07,860 INFO L475 AbstractCegarLoop]: Abstraction has 213 states and 271 transitions. [2019-09-10 07:27:07,861 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 07:27:07,861 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 271 transitions. [2019-09-10 07:27:07,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-10 07:27:07,861 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:07,862 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, 1] [2019-09-10 07:27:07,862 INFO L418 AbstractCegarLoop]: === Iteration 11 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:07,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:07,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1518456221, now seen corresponding path program 1 times [2019-09-10 07:27:07,863 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:07,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:07,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:07,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:07,864 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:07,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:08,433 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 07:27:08,434 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:08,434 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-09-10 07:27:08,435 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:08,435 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-10 07:27:08,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-10 07:27:08,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-09-10 07:27:08,436 INFO L87 Difference]: Start difference. First operand 213 states and 271 transitions. Second operand 13 states. [2019-09-10 07:27:08,892 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 32 [2019-09-10 07:27:09,041 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 32 [2019-09-10 07:27:09,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:09,590 INFO L93 Difference]: Finished difference Result 647 states and 925 transitions. [2019-09-10 07:27:09,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-10 07:27:09,592 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 56 [2019-09-10 07:27:09,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:09,594 INFO L225 Difference]: With dead ends: 647 [2019-09-10 07:27:09,594 INFO L226 Difference]: Without dead ends: 647 [2019-09-10 07:27:09,595 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2019-09-10 07:27:09,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2019-09-10 07:27:09,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 193. [2019-09-10 07:27:09,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-09-10 07:27:09,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 248 transitions. [2019-09-10 07:27:09,604 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 248 transitions. Word has length 56 [2019-09-10 07:27:09,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:09,604 INFO L475 AbstractCegarLoop]: Abstraction has 193 states and 248 transitions. [2019-09-10 07:27:09,605 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-10 07:27:09,605 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 248 transitions. [2019-09-10 07:27:09,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-10 07:27:09,605 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:09,605 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 07:27:09,606 INFO L418 AbstractCegarLoop]: === Iteration 12 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:09,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:09,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1716858446, now seen corresponding path program 1 times [2019-09-10 07:27:09,606 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:09,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:09,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:09,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:09,608 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:09,933 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 07:27:09,933 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:09,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-10 07:27:09,934 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:09,934 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-10 07:27:09,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-10 07:27:09,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-09-10 07:27:09,935 INFO L87 Difference]: Start difference. First operand 193 states and 248 transitions. Second operand 11 states. [2019-09-10 07:27:10,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:10,411 INFO L93 Difference]: Finished difference Result 397 states and 543 transitions. [2019-09-10 07:27:10,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 07:27:10,416 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2019-09-10 07:27:10,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:10,418 INFO L225 Difference]: With dead ends: 397 [2019-09-10 07:27:10,419 INFO L226 Difference]: Without dead ends: 397 [2019-09-10 07:27:10,419 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2019-09-10 07:27:10,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-09-10 07:27:10,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 189. [2019-09-10 07:27:10,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2019-09-10 07:27:10,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 243 transitions. [2019-09-10 07:27:10,426 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 243 transitions. Word has length 56 [2019-09-10 07:27:10,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:10,427 INFO L475 AbstractCegarLoop]: Abstraction has 189 states and 243 transitions. [2019-09-10 07:27:10,427 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-10 07:27:10,427 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 243 transitions. [2019-09-10 07:27:10,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 07:27:10,428 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:10,428 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 07:27:10,428 INFO L418 AbstractCegarLoop]: === Iteration 13 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:10,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:10,429 INFO L82 PathProgramCache]: Analyzing trace with hash 628872757, now seen corresponding path program 1 times [2019-09-10 07:27:10,429 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:10,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:10,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:10,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:10,431 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:10,610 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 07:27:10,610 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:10,610 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 07:27:10,611 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:10,611 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 07:27:10,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 07:27:10,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-10 07:27:10,612 INFO L87 Difference]: Start difference. First operand 189 states and 243 transitions. Second operand 10 states. [2019-09-10 07:27:11,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:11,494 INFO L93 Difference]: Finished difference Result 391 states and 537 transitions. [2019-09-10 07:27:11,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-10 07:27:11,494 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2019-09-10 07:27:11,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:11,496 INFO L225 Difference]: With dead ends: 391 [2019-09-10 07:27:11,496 INFO L226 Difference]: Without dead ends: 391 [2019-09-10 07:27:11,497 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2019-09-10 07:27:11,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2019-09-10 07:27:11,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 189. [2019-09-10 07:27:11,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2019-09-10 07:27:11,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 242 transitions. [2019-09-10 07:27:11,506 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 242 transitions. Word has length 57 [2019-09-10 07:27:11,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:11,512 INFO L475 AbstractCegarLoop]: Abstraction has 189 states and 242 transitions. [2019-09-10 07:27:11,513 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 07:27:11,514 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 242 transitions. [2019-09-10 07:27:11,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-09-10 07:27:11,514 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:11,514 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 07:27:11,515 INFO L418 AbstractCegarLoop]: === Iteration 14 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:11,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:11,515 INFO L82 PathProgramCache]: Analyzing trace with hash -50398382, now seen corresponding path program 1 times [2019-09-10 07:27:11,515 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:11,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:11,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:11,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:11,517 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:12,031 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 07:27:12,031 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:12,032 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-09-10 07:27:12,032 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:12,033 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-10 07:27:12,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-10 07:27:12,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2019-09-10 07:27:12,034 INFO L87 Difference]: Start difference. First operand 189 states and 242 transitions. Second operand 18 states. [2019-09-10 07:27:12,183 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 07:27:13,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:13,565 INFO L93 Difference]: Finished difference Result 385 states and 527 transitions. [2019-09-10 07:27:13,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-09-10 07:27:13,566 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 58 [2019-09-10 07:27:13,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:13,568 INFO L225 Difference]: With dead ends: 385 [2019-09-10 07:27:13,568 INFO L226 Difference]: Without dead ends: 385 [2019-09-10 07:27:13,571 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=200, Invalid=856, Unknown=0, NotChecked=0, Total=1056 [2019-09-10 07:27:13,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2019-09-10 07:27:13,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 195. [2019-09-10 07:27:13,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2019-09-10 07:27:13,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 250 transitions. [2019-09-10 07:27:13,579 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 250 transitions. Word has length 58 [2019-09-10 07:27:13,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:13,579 INFO L475 AbstractCegarLoop]: Abstraction has 195 states and 250 transitions. [2019-09-10 07:27:13,579 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-10 07:27:13,579 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 250 transitions. [2019-09-10 07:27:13,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-10 07:27:13,580 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:13,580 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 07:27:13,580 INFO L418 AbstractCegarLoop]: === Iteration 15 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:13,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:13,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1958291018, now seen corresponding path program 1 times [2019-09-10 07:27:13,581 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:13,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:13,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:13,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:13,583 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:13,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:27:13,924 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:13,924 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-10 07:27:13,924 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:13,924 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-10 07:27:13,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-10 07:27:13,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-09-10 07:27:13,925 INFO L87 Difference]: Start difference. First operand 195 states and 250 transitions. Second operand 11 states. [2019-09-10 07:27:14,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:14,684 INFO L93 Difference]: Finished difference Result 657 states and 933 transitions. [2019-09-10 07:27:14,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 07:27:14,684 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 59 [2019-09-10 07:27:14,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:14,689 INFO L225 Difference]: With dead ends: 657 [2019-09-10 07:27:14,689 INFO L226 Difference]: Without dead ends: 657 [2019-09-10 07:27:14,690 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2019-09-10 07:27:14,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2019-09-10 07:27:14,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 183. [2019-09-10 07:27:14,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2019-09-10 07:27:14,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 235 transitions. [2019-09-10 07:27:14,699 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 235 transitions. Word has length 59 [2019-09-10 07:27:14,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:14,699 INFO L475 AbstractCegarLoop]: Abstraction has 183 states and 235 transitions. [2019-09-10 07:27:14,699 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-10 07:27:14,699 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 235 transitions. [2019-09-10 07:27:14,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-10 07:27:14,700 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:14,700 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 07:27:14,700 INFO L418 AbstractCegarLoop]: === Iteration 16 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:14,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:14,701 INFO L82 PathProgramCache]: Analyzing trace with hash 435613388, now seen corresponding path program 1 times [2019-09-10 07:27:14,701 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:14,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:14,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:14,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:14,702 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:15,549 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 07:27:15,550 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:15,550 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-09-10 07:27:15,550 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:15,550 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-10 07:27:15,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-10 07:27:15,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2019-09-10 07:27:15,551 INFO L87 Difference]: Start difference. First operand 183 states and 235 transitions. Second operand 18 states. [2019-09-10 07:27:16,137 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2019-09-10 07:27:16,275 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-10 07:27:16,428 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2019-09-10 07:27:16,583 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2019-09-10 07:27:16,891 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-09-10 07:27:17,033 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2019-09-10 07:27:17,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:17,531 INFO L93 Difference]: Finished difference Result 183 states and 234 transitions. [2019-09-10 07:27:17,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-09-10 07:27:17,531 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 59 [2019-09-10 07:27:17,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:17,532 INFO L225 Difference]: With dead ends: 183 [2019-09-10 07:27:17,533 INFO L226 Difference]: Without dead ends: 183 [2019-09-10 07:27:17,533 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=227, Invalid=703, Unknown=0, NotChecked=0, Total=930 [2019-09-10 07:27:17,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2019-09-10 07:27:17,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2019-09-10 07:27:17,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2019-09-10 07:27:17,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 234 transitions. [2019-09-10 07:27:17,538 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 234 transitions. Word has length 59 [2019-09-10 07:27:17,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:17,539 INFO L475 AbstractCegarLoop]: Abstraction has 183 states and 234 transitions. [2019-09-10 07:27:17,539 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-10 07:27:17,539 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 234 transitions. [2019-09-10 07:27:17,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-10 07:27:17,540 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:17,540 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 07:27:17,540 INFO L418 AbstractCegarLoop]: === Iteration 17 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:17,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:17,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1550714451, now seen corresponding path program 1 times [2019-09-10 07:27:17,541 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:17,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:17,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:17,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:17,542 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:17,849 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 07:27:17,849 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:17,849 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 07:27:17,849 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:17,850 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 07:27:17,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 07:27:17,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-09-10 07:27:17,850 INFO L87 Difference]: Start difference. First operand 183 states and 234 transitions. Second operand 10 states. [2019-09-10 07:27:18,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:18,267 INFO L93 Difference]: Finished difference Result 431 states and 614 transitions. [2019-09-10 07:27:18,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-10 07:27:18,268 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 60 [2019-09-10 07:27:18,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:18,270 INFO L225 Difference]: With dead ends: 431 [2019-09-10 07:27:18,271 INFO L226 Difference]: Without dead ends: 431 [2019-09-10 07:27:18,271 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2019-09-10 07:27:18,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2019-09-10 07:27:18,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 165. [2019-09-10 07:27:18,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2019-09-10 07:27:18,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 216 transitions. [2019-09-10 07:27:18,278 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 216 transitions. Word has length 60 [2019-09-10 07:27:18,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:18,278 INFO L475 AbstractCegarLoop]: Abstraction has 165 states and 216 transitions. [2019-09-10 07:27:18,278 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 07:27:18,278 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 216 transitions. [2019-09-10 07:27:18,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-09-10 07:27:18,279 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:18,279 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] [2019-09-10 07:27:18,280 INFO L418 AbstractCegarLoop]: === Iteration 18 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:18,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:18,280 INFO L82 PathProgramCache]: Analyzing trace with hash -767770571, now seen corresponding path program 1 times [2019-09-10 07:27:18,280 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:18,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:18,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:18,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:18,282 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:18,340 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 07:27:18,340 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:18,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:27:18,340 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:18,341 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:27:18,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:27:18,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:27:18,341 INFO L87 Difference]: Start difference. First operand 165 states and 216 transitions. Second operand 3 states. [2019-09-10 07:27:18,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:18,364 INFO L93 Difference]: Finished difference Result 241 states and 326 transitions. [2019-09-10 07:27:18,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:27:18,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2019-09-10 07:27:18,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:18,366 INFO L225 Difference]: With dead ends: 241 [2019-09-10 07:27:18,366 INFO L226 Difference]: Without dead ends: 241 [2019-09-10 07:27:18,367 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 07:27:18,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2019-09-10 07:27:18,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 239. [2019-09-10 07:27:18,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2019-09-10 07:27:18,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 325 transitions. [2019-09-10 07:27:18,373 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 325 transitions. Word has length 76 [2019-09-10 07:27:18,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:18,374 INFO L475 AbstractCegarLoop]: Abstraction has 239 states and 325 transitions. [2019-09-10 07:27:18,374 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:27:18,374 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 325 transitions. [2019-09-10 07:27:18,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-10 07:27:18,378 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:18,378 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] [2019-09-10 07:27:18,379 INFO L418 AbstractCegarLoop]: === Iteration 19 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:18,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:18,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1249178759, now seen corresponding path program 1 times [2019-09-10 07:27:18,379 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:18,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:18,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:18,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:18,381 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:18,464 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 07:27:18,464 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:18,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 07:27:18,465 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:18,466 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 07:27:18,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 07:27:18,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:27:18,467 INFO L87 Difference]: Start difference. First operand 239 states and 325 transitions. Second operand 7 states. [2019-09-10 07:27:18,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:18,760 INFO L93 Difference]: Finished difference Result 737 states and 1044 transitions. [2019-09-10 07:27:18,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 07:27:18,761 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-09-10 07:27:18,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:18,764 INFO L225 Difference]: With dead ends: 737 [2019-09-10 07:27:18,765 INFO L226 Difference]: Without dead ends: 737 [2019-09-10 07:27:18,765 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2019-09-10 07:27:18,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2019-09-10 07:27:18,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 435. [2019-09-10 07:27:18,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2019-09-10 07:27:18,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 617 transitions. [2019-09-10 07:27:18,779 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 617 transitions. Word has length 78 [2019-09-10 07:27:18,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:18,779 INFO L475 AbstractCegarLoop]: Abstraction has 435 states and 617 transitions. [2019-09-10 07:27:18,779 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 07:27:18,779 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 617 transitions. [2019-09-10 07:27:18,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-10 07:27:18,782 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:18,782 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] [2019-09-10 07:27:18,783 INFO L418 AbstractCegarLoop]: === Iteration 20 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:18,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:18,784 INFO L82 PathProgramCache]: Analyzing trace with hash 620887447, now seen corresponding path program 1 times [2019-09-10 07:27:18,784 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:18,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:18,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:18,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:18,785 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:18,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:18,843 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 07:27:18,844 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:18,844 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:27:18,844 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:18,844 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:27:18,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:27:18,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:27:18,845 INFO L87 Difference]: Start difference. First operand 435 states and 617 transitions. Second operand 3 states. [2019-09-10 07:27:18,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:18,874 INFO L93 Difference]: Finished difference Result 749 states and 1058 transitions. [2019-09-10 07:27:18,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:27:18,875 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2019-09-10 07:27:18,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:18,878 INFO L225 Difference]: With dead ends: 749 [2019-09-10 07:27:18,879 INFO L226 Difference]: Without dead ends: 749 [2019-09-10 07:27:18,879 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 07:27:18,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2019-09-10 07:27:18,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 739. [2019-09-10 07:27:18,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2019-09-10 07:27:18,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1049 transitions. [2019-09-10 07:27:18,894 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1049 transitions. Word has length 78 [2019-09-10 07:27:18,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:18,894 INFO L475 AbstractCegarLoop]: Abstraction has 739 states and 1049 transitions. [2019-09-10 07:27:18,894 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:27:18,894 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1049 transitions. [2019-09-10 07:27:18,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-10 07:27:18,895 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:18,896 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:27:18,896 INFO L418 AbstractCegarLoop]: === Iteration 21 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:18,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:18,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1331075096, now seen corresponding path program 1 times [2019-09-10 07:27:18,896 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:18,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:18,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:18,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:18,900 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:18,954 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 07:27:18,954 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:18,955 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:27:18,955 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:18,956 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:27:18,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:27:18,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:27:18,957 INFO L87 Difference]: Start difference. First operand 739 states and 1049 transitions. Second operand 3 states. [2019-09-10 07:27:18,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:18,989 INFO L93 Difference]: Finished difference Result 1077 states and 1534 transitions. [2019-09-10 07:27:18,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:27:18,990 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2019-09-10 07:27:18,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:18,994 INFO L225 Difference]: With dead ends: 1077 [2019-09-10 07:27:18,995 INFO L226 Difference]: Without dead ends: 1077 [2019-09-10 07:27:18,995 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 07:27:18,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2019-09-10 07:27:19,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1075. [2019-09-10 07:27:19,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1075 states. [2019-09-10 07:27:19,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1533 transitions. [2019-09-10 07:27:19,024 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1533 transitions. Word has length 78 [2019-09-10 07:27:19,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:19,024 INFO L475 AbstractCegarLoop]: Abstraction has 1075 states and 1533 transitions. [2019-09-10 07:27:19,024 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:27:19,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1533 transitions. [2019-09-10 07:27:19,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-10 07:27:19,026 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:19,026 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] [2019-09-10 07:27:19,027 INFO L418 AbstractCegarLoop]: === Iteration 22 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:19,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:19,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1630779315, now seen corresponding path program 1 times [2019-09-10 07:27:19,027 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:19,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:19,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:19,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:19,030 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:19,145 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 07:27:19,146 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:19,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 07:27:19,146 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:19,147 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 07:27:19,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 07:27:19,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:27:19,152 INFO L87 Difference]: Start difference. First operand 1075 states and 1533 transitions. Second operand 7 states. [2019-09-10 07:27:19,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:19,517 INFO L93 Difference]: Finished difference Result 2945 states and 4179 transitions. [2019-09-10 07:27:19,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 07:27:19,520 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-09-10 07:27:19,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:19,531 INFO L225 Difference]: With dead ends: 2945 [2019-09-10 07:27:19,532 INFO L226 Difference]: Without dead ends: 2945 [2019-09-10 07:27:19,532 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2019-09-10 07:27:19,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2019-09-10 07:27:19,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 1855. [2019-09-10 07:27:19,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1855 states. [2019-09-10 07:27:19,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1855 states to 1855 states and 2667 transitions. [2019-09-10 07:27:19,580 INFO L78 Accepts]: Start accepts. Automaton has 1855 states and 2667 transitions. Word has length 78 [2019-09-10 07:27:19,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:19,580 INFO L475 AbstractCegarLoop]: Abstraction has 1855 states and 2667 transitions. [2019-09-10 07:27:19,580 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 07:27:19,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1855 states and 2667 transitions. [2019-09-10 07:27:19,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-10 07:27:19,582 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:19,582 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:27:19,582 INFO L418 AbstractCegarLoop]: === Iteration 23 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:19,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:19,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1745512600, now seen corresponding path program 1 times [2019-09-10 07:27:19,583 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:19,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:19,585 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:19,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:19,585 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:19,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:19,661 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 07:27:19,661 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:19,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 07:27:19,661 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:19,662 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 07:27:19,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 07:27:19,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 07:27:19,663 INFO L87 Difference]: Start difference. First operand 1855 states and 2667 transitions. Second operand 6 states. [2019-09-10 07:27:19,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:19,755 INFO L93 Difference]: Finished difference Result 3317 states and 4670 transitions. [2019-09-10 07:27:19,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-10 07:27:19,756 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2019-09-10 07:27:19,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:19,769 INFO L225 Difference]: With dead ends: 3317 [2019-09-10 07:27:19,769 INFO L226 Difference]: Without dead ends: 3317 [2019-09-10 07:27:19,770 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 07:27:19,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3317 states. [2019-09-10 07:27:19,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3317 to 1903. [2019-09-10 07:27:19,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1903 states. [2019-09-10 07:27:19,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 2707 transitions. [2019-09-10 07:27:19,820 INFO L78 Accepts]: Start accepts. Automaton has 1903 states and 2707 transitions. Word has length 79 [2019-09-10 07:27:19,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:19,821 INFO L475 AbstractCegarLoop]: Abstraction has 1903 states and 2707 transitions. [2019-09-10 07:27:19,821 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 07:27:19,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1903 states and 2707 transitions. [2019-09-10 07:27:19,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-10 07:27:19,822 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:19,823 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:27:19,823 INFO L418 AbstractCegarLoop]: === Iteration 24 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:19,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:19,824 INFO L82 PathProgramCache]: Analyzing trace with hash -568260831, now seen corresponding path program 1 times [2019-09-10 07:27:19,824 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:19,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:19,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:19,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:19,825 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:19,900 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 07:27:19,901 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:19,901 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 07:27:19,901 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:19,901 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 07:27:19,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 07:27:19,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:27:19,903 INFO L87 Difference]: Start difference. First operand 1903 states and 2707 transitions. Second operand 7 states. [2019-09-10 07:27:20,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:20,251 INFO L93 Difference]: Finished difference Result 4105 states and 5744 transitions. [2019-09-10 07:27:20,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 07:27:20,252 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2019-09-10 07:27:20,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:20,269 INFO L225 Difference]: With dead ends: 4105 [2019-09-10 07:27:20,270 INFO L226 Difference]: Without dead ends: 4105 [2019-09-10 07:27:20,270 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2019-09-10 07:27:20,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4105 states. [2019-09-10 07:27:20,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4105 to 2439. [2019-09-10 07:27:20,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2439 states. [2019-09-10 07:27:20,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 3431 transitions. [2019-09-10 07:27:20,344 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 3431 transitions. Word has length 79 [2019-09-10 07:27:20,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:20,345 INFO L475 AbstractCegarLoop]: Abstraction has 2439 states and 3431 transitions. [2019-09-10 07:27:20,345 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 07:27:20,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 3431 transitions. [2019-09-10 07:27:20,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-09-10 07:27:20,346 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:20,346 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:27:20,347 INFO L418 AbstractCegarLoop]: === Iteration 25 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:20,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:20,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1724131678, now seen corresponding path program 1 times [2019-09-10 07:27:20,347 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:20,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:20,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:20,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:20,348 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:20,397 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 07:27:20,398 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:20,398 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:27:20,398 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:20,398 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:27:20,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:27:20,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:27:20,399 INFO L87 Difference]: Start difference. First operand 2439 states and 3431 transitions. Second operand 3 states. [2019-09-10 07:27:20,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:20,427 INFO L93 Difference]: Finished difference Result 2231 states and 3082 transitions. [2019-09-10 07:27:20,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:27:20,427 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2019-09-10 07:27:20,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:20,436 INFO L225 Difference]: With dead ends: 2231 [2019-09-10 07:27:20,437 INFO L226 Difference]: Without dead ends: 2231 [2019-09-10 07:27:20,437 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 07:27:20,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2019-09-10 07:27:20,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1803. [2019-09-10 07:27:20,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1803 states. [2019-09-10 07:27:20,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 2486 transitions. [2019-09-10 07:27:20,474 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 2486 transitions. Word has length 80 [2019-09-10 07:27:20,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:20,474 INFO L475 AbstractCegarLoop]: Abstraction has 1803 states and 2486 transitions. [2019-09-10 07:27:20,474 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:27:20,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 2486 transitions. [2019-09-10 07:27:20,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-09-10 07:27:20,476 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:20,476 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 07:27:20,476 INFO L418 AbstractCegarLoop]: === Iteration 26 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:20,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:20,477 INFO L82 PathProgramCache]: Analyzing trace with hash 265653448, now seen corresponding path program 1 times [2019-09-10 07:27:20,477 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:20,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:20,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:20,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:20,478 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:20,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:20,544 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 07:27:20,545 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:20,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:27:20,545 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:20,546 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:27:20,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:27:20,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:27:20,546 INFO L87 Difference]: Start difference. First operand 1803 states and 2486 transitions. Second operand 3 states. [2019-09-10 07:27:20,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:20,568 INFO L93 Difference]: Finished difference Result 2501 states and 3380 transitions. [2019-09-10 07:27:20,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:27:20,569 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 81 [2019-09-10 07:27:20,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:20,579 INFO L225 Difference]: With dead ends: 2501 [2019-09-10 07:27:20,579 INFO L226 Difference]: Without dead ends: 2501 [2019-09-10 07:27:20,579 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 07:27:20,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2501 states. [2019-09-10 07:27:20,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2501 to 2271. [2019-09-10 07:27:20,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2271 states. [2019-09-10 07:27:20,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2271 states to 2271 states and 3103 transitions. [2019-09-10 07:27:20,623 INFO L78 Accepts]: Start accepts. Automaton has 2271 states and 3103 transitions. Word has length 81 [2019-09-10 07:27:20,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:20,623 INFO L475 AbstractCegarLoop]: Abstraction has 2271 states and 3103 transitions. [2019-09-10 07:27:20,624 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:27:20,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2271 states and 3103 transitions. [2019-09-10 07:27:20,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-09-10 07:27:20,625 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:20,625 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:27:20,625 INFO L418 AbstractCegarLoop]: === Iteration 27 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:20,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:20,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1648812015, now seen corresponding path program 1 times [2019-09-10 07:27:20,626 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:20,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:20,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:20,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:20,628 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:20,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:27:20,679 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:20,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:27:20,679 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:20,679 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:27:20,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:27:20,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:27:20,680 INFO L87 Difference]: Start difference. First operand 2271 states and 3103 transitions. Second operand 3 states. [2019-09-10 07:27:20,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:20,700 INFO L93 Difference]: Finished difference Result 2559 states and 3462 transitions. [2019-09-10 07:27:20,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:27:20,700 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2019-09-10 07:27:20,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:20,724 INFO L225 Difference]: With dead ends: 2559 [2019-09-10 07:27:20,724 INFO L226 Difference]: Without dead ends: 2559 [2019-09-10 07:27:20,725 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 07:27:20,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states. [2019-09-10 07:27:20,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 2477. [2019-09-10 07:27:20,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2477 states. [2019-09-10 07:27:20,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 3351 transitions. [2019-09-10 07:27:20,782 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 3351 transitions. Word has length 82 [2019-09-10 07:27:20,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:20,783 INFO L475 AbstractCegarLoop]: Abstraction has 2477 states and 3351 transitions. [2019-09-10 07:27:20,783 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:27:20,783 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 3351 transitions. [2019-09-10 07:27:20,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-09-10 07:27:20,785 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:20,785 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 07:27:20,785 INFO L418 AbstractCegarLoop]: === Iteration 28 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:20,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:20,786 INFO L82 PathProgramCache]: Analyzing trace with hash -2106033639, now seen corresponding path program 1 times [2019-09-10 07:27:20,786 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:20,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:20,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:20,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:20,787 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:20,887 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:27:20,888 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:20,888 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:27:20,888 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:20,889 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:27:20,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:27:20,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:27:20,889 INFO L87 Difference]: Start difference. First operand 2477 states and 3351 transitions. Second operand 3 states. [2019-09-10 07:27:20,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:20,907 INFO L93 Difference]: Finished difference Result 2125 states and 2774 transitions. [2019-09-10 07:27:20,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:27:20,907 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 101 [2019-09-10 07:27:20,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:20,912 INFO L225 Difference]: With dead ends: 2125 [2019-09-10 07:27:20,912 INFO L226 Difference]: Without dead ends: 2125 [2019-09-10 07:27:20,912 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 07:27:20,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2125 states. [2019-09-10 07:27:20,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2125 to 2123. [2019-09-10 07:27:20,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2123 states. [2019-09-10 07:27:20,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2123 states to 2123 states and 2773 transitions. [2019-09-10 07:27:20,942 INFO L78 Accepts]: Start accepts. Automaton has 2123 states and 2773 transitions. Word has length 101 [2019-09-10 07:27:20,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:20,942 INFO L475 AbstractCegarLoop]: Abstraction has 2123 states and 2773 transitions. [2019-09-10 07:27:20,942 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:27:20,942 INFO L276 IsEmpty]: Start isEmpty. Operand 2123 states and 2773 transitions. [2019-09-10 07:27:20,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-10 07:27:20,944 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:20,944 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:27:20,944 INFO L418 AbstractCegarLoop]: === Iteration 29 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:20,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:20,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1500630065, now seen corresponding path program 1 times [2019-09-10 07:27:20,945 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:20,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:20,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:20,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:20,947 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:21,026 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 07:27:21,026 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:21,026 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:27:21,026 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:21,027 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:27:21,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:27:21,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:27:21,027 INFO L87 Difference]: Start difference. First operand 2123 states and 2773 transitions. Second operand 5 states. [2019-09-10 07:27:21,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:21,089 INFO L93 Difference]: Finished difference Result 3817 states and 4985 transitions. [2019-09-10 07:27:21,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:27:21,089 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2019-09-10 07:27:21,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:21,096 INFO L225 Difference]: With dead ends: 3817 [2019-09-10 07:27:21,096 INFO L226 Difference]: Without dead ends: 3817 [2019-09-10 07:27:21,098 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 07:27:21,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3817 states. [2019-09-10 07:27:21,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3817 to 2957. [2019-09-10 07:27:21,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2957 states. [2019-09-10 07:27:21,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2957 states to 2957 states and 3873 transitions. [2019-09-10 07:27:21,141 INFO L78 Accepts]: Start accepts. Automaton has 2957 states and 3873 transitions. Word has length 102 [2019-09-10 07:27:21,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:21,141 INFO L475 AbstractCegarLoop]: Abstraction has 2957 states and 3873 transitions. [2019-09-10 07:27:21,141 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:27:21,142 INFO L276 IsEmpty]: Start isEmpty. Operand 2957 states and 3873 transitions. [2019-09-10 07:27:21,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-10 07:27:21,143 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:21,143 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:27:21,144 INFO L418 AbstractCegarLoop]: === Iteration 30 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:21,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:21,144 INFO L82 PathProgramCache]: Analyzing trace with hash -2062056509, now seen corresponding path program 1 times [2019-09-10 07:27:21,144 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:21,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:21,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:21,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:21,146 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:21,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:21,238 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-10 07:27:21,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:21,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:27:21,238 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:21,239 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:27:21,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:27:21,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:27:21,239 INFO L87 Difference]: Start difference. First operand 2957 states and 3873 transitions. Second operand 5 states. [2019-09-10 07:27:21,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:21,309 INFO L93 Difference]: Finished difference Result 7381 states and 9640 transitions. [2019-09-10 07:27:21,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:27:21,309 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2019-09-10 07:27:21,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:21,323 INFO L225 Difference]: With dead ends: 7381 [2019-09-10 07:27:21,323 INFO L226 Difference]: Without dead ends: 7381 [2019-09-10 07:27:21,324 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 07:27:21,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7381 states. [2019-09-10 07:27:21,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7381 to 4545. [2019-09-10 07:27:21,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4545 states. [2019-09-10 07:27:21,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4545 states to 4545 states and 5945 transitions. [2019-09-10 07:27:21,403 INFO L78 Accepts]: Start accepts. Automaton has 4545 states and 5945 transitions. Word has length 102 [2019-09-10 07:27:21,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:21,403 INFO L475 AbstractCegarLoop]: Abstraction has 4545 states and 5945 transitions. [2019-09-10 07:27:21,403 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:27:21,403 INFO L276 IsEmpty]: Start isEmpty. Operand 4545 states and 5945 transitions. [2019-09-10 07:27:21,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-10 07:27:21,405 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:21,406 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:27:21,406 INFO L418 AbstractCegarLoop]: === Iteration 31 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:21,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:21,407 INFO L82 PathProgramCache]: Analyzing trace with hash -647047287, now seen corresponding path program 1 times [2019-09-10 07:27:21,407 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:21,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:21,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:21,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:21,408 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:21,493 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-10 07:27:21,493 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:21,494 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:27:21,494 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:21,494 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:27:21,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:27:21,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:27:21,495 INFO L87 Difference]: Start difference. First operand 4545 states and 5945 transitions. Second operand 5 states. [2019-09-10 07:27:21,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:21,594 INFO L93 Difference]: Finished difference Result 8969 states and 11722 transitions. [2019-09-10 07:27:21,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:27:21,594 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2019-09-10 07:27:21,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:21,611 INFO L225 Difference]: With dead ends: 8969 [2019-09-10 07:27:21,611 INFO L226 Difference]: Without dead ends: 8969 [2019-09-10 07:27:21,611 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 07:27:21,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8969 states. [2019-09-10 07:27:21,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8969 to 6887. [2019-09-10 07:27:21,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6887 states. [2019-09-10 07:27:21,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6887 states to 6887 states and 8989 transitions. [2019-09-10 07:27:21,712 INFO L78 Accepts]: Start accepts. Automaton has 6887 states and 8989 transitions. Word has length 102 [2019-09-10 07:27:21,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:21,713 INFO L475 AbstractCegarLoop]: Abstraction has 6887 states and 8989 transitions. [2019-09-10 07:27:21,713 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:27:21,713 INFO L276 IsEmpty]: Start isEmpty. Operand 6887 states and 8989 transitions. [2019-09-10 07:27:21,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-10 07:27:21,718 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:21,718 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] [2019-09-10 07:27:21,719 INFO L418 AbstractCegarLoop]: === Iteration 32 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:21,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:21,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1409510800, now seen corresponding path program 1 times [2019-09-10 07:27:21,720 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:21,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:21,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:21,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:21,722 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:21,838 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-10 07:27:21,838 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:21,838 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 07:27:21,838 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:21,839 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 07:27:21,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 07:27:21,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-10 07:27:21,839 INFO L87 Difference]: Start difference. First operand 6887 states and 8989 transitions. Second operand 9 states. [2019-09-10 07:27:22,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:22,400 INFO L93 Difference]: Finished difference Result 14031 states and 18228 transitions. [2019-09-10 07:27:22,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-10 07:27:22,401 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 103 [2019-09-10 07:27:22,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:22,430 INFO L225 Difference]: With dead ends: 14031 [2019-09-10 07:27:22,430 INFO L226 Difference]: Without dead ends: 14031 [2019-09-10 07:27:22,434 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2019-09-10 07:27:22,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14031 states. [2019-09-10 07:27:22,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14031 to 6887. [2019-09-10 07:27:22,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6887 states. [2019-09-10 07:27:22,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6887 states to 6887 states and 8987 transitions. [2019-09-10 07:27:22,614 INFO L78 Accepts]: Start accepts. Automaton has 6887 states and 8987 transitions. Word has length 103 [2019-09-10 07:27:22,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:22,615 INFO L475 AbstractCegarLoop]: Abstraction has 6887 states and 8987 transitions. [2019-09-10 07:27:22,615 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 07:27:22,615 INFO L276 IsEmpty]: Start isEmpty. Operand 6887 states and 8987 transitions. [2019-09-10 07:27:22,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-09-10 07:27:22,619 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:22,619 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] [2019-09-10 07:27:22,620 INFO L418 AbstractCegarLoop]: === Iteration 33 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:22,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:22,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1031408707, now seen corresponding path program 1 times [2019-09-10 07:27:22,621 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:22,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:22,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:22,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:22,626 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:22,954 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:27:22,954 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:27:22,954 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:27:22,955 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 106 with the following transitions: [2019-09-10 07:27:22,958 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [113], [115], [117], [120], [123], [126], [128], [130], [133], [136], [139], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [178], [180], [183], [191], [193], [196], [204], [206], [209], [212], [216], [218], [220], [223], [224], [226], [229], [234], [236], [239], [252], [254], [257], [260], [262], [277], [279], [282], [285], [287], [302], [304], [306], [309], [312], [314], [752], [753], [757], [758], [759] [2019-09-10 07:27:23,026 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:27:23,027 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:27:23,186 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:27:23,771 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:27:23,774 INFO L272 AbstractInterpreter]: Visited 98 different actions 438 times. Merged at 38 different actions 294 times. Widened at 13 different actions 39 times. Performed 1453 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1453 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 50 fixpoints after 13 different actions. Largest state had 134 variables. [2019-09-10 07:27:23,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:23,780 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:27:23,780 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:27:23,780 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:27:23,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:23,796 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:27:23,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:23,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 19 conjunts are in the unsatisfiable core [2019-09-10 07:27:23,965 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:27:24,293 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:24,630 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:27:24,630 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:27:24,751 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:25,911 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:25,983 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:25,983 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:25,985 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:29,138 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:29,334 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:27:29,341 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:27:29,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2019-09-10 07:27:29,342 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:27:29,342 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-10 07:27:29,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-10 07:27:29,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2019-09-10 07:27:29,347 INFO L87 Difference]: Start difference. First operand 6887 states and 8987 transitions. Second operand 20 states. [2019-09-10 07:27:32,354 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2019-09-10 07:27:32,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:32,595 INFO L93 Difference]: Finished difference Result 30155 states and 38962 transitions. [2019-09-10 07:27:32,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-09-10 07:27:32,596 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 105 [2019-09-10 07:27:32,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:32,651 INFO L225 Difference]: With dead ends: 30155 [2019-09-10 07:27:32,651 INFO L226 Difference]: Without dead ends: 30155 [2019-09-10 07:27:32,652 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 166 SyntacticMatches, 31 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 898 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=840, Invalid=2240, Unknown=0, NotChecked=0, Total=3080 [2019-09-10 07:27:32,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30155 states. [2019-09-10 07:27:33,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30155 to 14661. [2019-09-10 07:27:33,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14661 states. [2019-09-10 07:27:33,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14661 states to 14661 states and 19045 transitions. [2019-09-10 07:27:33,076 INFO L78 Accepts]: Start accepts. Automaton has 14661 states and 19045 transitions. Word has length 105 [2019-09-10 07:27:33,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:33,077 INFO L475 AbstractCegarLoop]: Abstraction has 14661 states and 19045 transitions. [2019-09-10 07:27:33,077 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-10 07:27:33,077 INFO L276 IsEmpty]: Start isEmpty. Operand 14661 states and 19045 transitions. [2019-09-10 07:27:33,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-09-10 07:27:33,081 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:33,081 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:27:33,082 INFO L418 AbstractCegarLoop]: === Iteration 34 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:33,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:33,082 INFO L82 PathProgramCache]: Analyzing trace with hash 359959132, now seen corresponding path program 1 times [2019-09-10 07:27:33,082 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:33,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:33,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:33,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:33,083 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:33,384 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:27:33,385 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:27:33,385 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:27:33,386 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 107 with the following transitions: [2019-09-10 07:27:33,386 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [113], [115], [117], [120], [123], [126], [128], [130], [133], [136], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [178], [180], [183], [191], [193], [196], [204], [206], [209], [212], [216], [218], [220], [223], [224], [226], [229], [234], [236], [239], [252], [254], [257], [260], [262], [277], [279], [282], [285], [287], [302], [304], [306], [309], [312], [314], [325], [347], [752], [753], [757], [758], [759] [2019-09-10 07:27:33,395 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:27:33,396 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:27:33,417 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:27:33,821 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:27:33,822 INFO L272 AbstractInterpreter]: Visited 99 different actions 509 times. Merged at 38 different actions 353 times. Widened at 15 different actions 64 times. Performed 1708 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1708 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 61 fixpoints after 14 different actions. Largest state had 134 variables. [2019-09-10 07:27:33,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:33,822 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:27:33,822 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:27:33,822 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 07:27:33,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:33,840 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 07:27:33,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:33,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 13 conjunts are in the unsatisfiable core [2019-09-10 07:27:33,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:27:34,045 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:34,075 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:34,132 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:34,322 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:27:34,323 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:27:34,386 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:34,535 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:34,535 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:34,536 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:34,537 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:35,642 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:35,744 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:27:35,748 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:27:35,749 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 29 [2019-09-10 07:27:35,749 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:27:35,749 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-10 07:27:35,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-10 07:27:35,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=717, Unknown=0, NotChecked=0, Total=812 [2019-09-10 07:27:35,750 INFO L87 Difference]: Start difference. First operand 14661 states and 19045 transitions. Second operand 20 states. [2019-09-10 07:27:38,033 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 33 [2019-09-10 07:27:46,272 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 39 [2019-09-10 07:27:50,609 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2019-09-10 07:27:51,032 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 36 [2019-09-10 07:27:51,317 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 36 [2019-09-10 07:28:02,243 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 42 [2019-09-10 07:28:04,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:28:04,933 INFO L93 Difference]: Finished difference Result 111517 states and 142442 transitions. [2019-09-10 07:28:04,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2019-09-10 07:28:04,933 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 106 [2019-09-10 07:28:04,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:28:05,181 INFO L225 Difference]: With dead ends: 111517 [2019-09-10 07:28:05,181 INFO L226 Difference]: Without dead ends: 111517 [2019-09-10 07:28:05,197 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 172 SyntacticMatches, 23 SemanticMatches, 272 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29954 ImplicationChecksByTransitivity, 24.3s TimeCoverageRelationStatistics Valid=9746, Invalid=65056, Unknown=0, NotChecked=0, Total=74802 [2019-09-10 07:28:05,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111517 states. [2019-09-10 07:28:06,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111517 to 24871. [2019-09-10 07:28:06,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24871 states. [2019-09-10 07:28:06,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24871 states to 24871 states and 32186 transitions. [2019-09-10 07:28:06,079 INFO L78 Accepts]: Start accepts. Automaton has 24871 states and 32186 transitions. Word has length 106 [2019-09-10 07:28:06,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:28:06,080 INFO L475 AbstractCegarLoop]: Abstraction has 24871 states and 32186 transitions. [2019-09-10 07:28:06,080 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-10 07:28:06,080 INFO L276 IsEmpty]: Start isEmpty. Operand 24871 states and 32186 transitions. [2019-09-10 07:28:06,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-09-10 07:28:06,084 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:28:06,084 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:28:06,085 INFO L418 AbstractCegarLoop]: === Iteration 35 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:28:06,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:28:06,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1597113786, now seen corresponding path program 1 times [2019-09-10 07:28:06,085 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:28:06,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:28:06,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:28:06,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:28:06,087 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:28:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:28:06,378 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:28:06,378 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:28:06,378 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:28:06,378 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 107 with the following transitions: [2019-09-10 07:28:06,378 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [113], [115], [117], [120], [123], [126], [128], [130], [133], [136], [139], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [173], [178], [180], [183], [186], [191], [193], [196], [204], [206], [209], [216], [218], [220], [223], [224], [226], [236], [239], [243], [252], [254], [257], [260], [262], [270], [273], [279], [282], [285], [287], [295], [298], [304], [306], [309], [312], [314], [752], [753], [757], [758], [759] [2019-09-10 07:28:06,381 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:28:06,381 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:28:06,398 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:28:07,315 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:28:07,316 INFO L272 AbstractInterpreter]: Visited 100 different actions 398 times. Merged at 41 different actions 265 times. Widened at 12 different actions 31 times. Performed 1405 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1405 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 28 fixpoints after 8 different actions. Largest state had 134 variables. [2019-09-10 07:28:07,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:28:07,316 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:28:07,316 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:28:07,316 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:28:07,331 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:28:07,331 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:28:07,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:28:07,443 INFO L256 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-10 07:28:07,447 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:28:07,658 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:07,769 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:07,985 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:28:07,985 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:28:08,250 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,251 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,251 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,252 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,252 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,253 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,253 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,254 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,254 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,255 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,255 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,256 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,256 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,257 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,257 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,257 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,258 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,258 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,259 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,259 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,260 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,260 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,261 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,261 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:08,962 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:28:09,057 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:28:09,061 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:28:09,061 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 12] total 36 [2019-09-10 07:28:09,061 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:28:09,062 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-09-10 07:28:09,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-09-10 07:28:09,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1143, Unknown=0, NotChecked=0, Total=1260 [2019-09-10 07:28:09,062 INFO L87 Difference]: Start difference. First operand 24871 states and 32186 transitions. Second operand 26 states. [2019-09-10 07:28:09,335 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-10 07:28:09,961 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-10 07:28:10,255 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-10 07:28:10,462 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-10 07:28:10,756 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-10 07:28:10,990 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-09-10 07:28:11,401 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:28:11,670 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:28:12,021 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:28:12,463 WARN L188 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:28:12,803 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:28:13,066 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:28:14,113 WARN L188 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:28:14,400 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:28:14,719 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:28:15,056 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:28:15,393 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:28:15,656 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:28:15,946 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2019-09-10 07:28:16,288 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:28:16,642 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 07:28:17,043 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:28:17,449 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:28:17,701 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:28:18,090 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:28:18,507 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:28:18,938 WARN L188 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2019-09-10 07:28:19,178 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:28:19,423 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-10 07:28:19,766 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:28:20,091 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:28:20,403 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:28:21,140 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:28:21,689 WARN L188 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2019-09-10 07:28:22,025 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:28:22,302 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:28:22,680 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2019-09-10 07:28:23,034 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:28:23,309 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:28:23,858 WARN L188 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2019-09-10 07:28:24,499 WARN L188 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2019-09-10 07:28:25,157 WARN L188 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:28:25,494 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:28:25,932 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:28:26,335 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:28:28,125 WARN L188 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:28:28,408 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:28:28,652 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 07:28:28,898 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:28:29,290 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-10 07:28:29,622 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:28:29,869 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:28:30,161 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-10 07:28:30,371 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:28:30,677 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2019-09-10 07:28:30,939 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:28:31,216 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:28:31,474 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 07:28:31,794 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:28:32,173 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-10 07:28:32,513 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:28:32,871 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:28:33,090 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:28:33,459 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:28:33,855 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2019-09-10 07:28:34,164 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:28:34,514 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:28:34,789 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:28:35,330 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2019-09-10 07:28:35,805 WARN L188 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-10 07:28:36,162 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:28:36,586 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2019-09-10 07:28:36,911 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2019-09-10 07:28:37,352 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2019-09-10 07:28:37,865 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2019-09-10 07:28:38,232 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2019-09-10 07:28:38,703 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2019-09-10 07:28:39,220 WARN L188 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 91 [2019-09-10 07:28:39,644 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2019-09-10 07:28:39,983 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-09-10 07:28:40,287 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:28:40,764 WARN L188 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2019-09-10 07:28:41,146 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:28:41,579 WARN L188 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:28:42,063 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2019-09-10 07:28:42,394 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2019-09-10 07:28:43,549 WARN L188 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2019-09-10 07:28:43,904 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:28:44,423 WARN L188 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 07:28:44,734 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:28:45,222 WARN L188 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2019-09-10 07:28:45,706 WARN L188 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 07:28:46,017 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 07:28:46,742 WARN L188 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2019-09-10 07:28:47,137 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2019-09-10 07:28:47,549 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-10 07:28:48,059 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2019-09-10 07:28:48,427 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:28:48,957 WARN L188 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-10 07:28:49,461 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 97 [2019-09-10 07:28:49,934 WARN L188 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 07:28:50,264 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:28:50,796 WARN L188 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 91 [2019-09-10 07:28:51,195 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2019-09-10 07:28:51,500 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 07:28:51,859 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 07:28:52,339 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:28:52,735 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2019-09-10 07:28:53,273 WARN L188 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2019-09-10 07:28:53,678 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2019-09-10 07:28:54,297 WARN L188 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2019-09-10 07:28:54,685 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:28:54,995 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:28:55,478 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2019-09-10 07:28:55,827 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2019-09-10 07:28:56,292 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2019-09-10 07:28:56,607 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-10 07:28:57,026 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 92 [2019-09-10 07:28:57,426 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:28:57,779 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2019-09-10 07:28:58,106 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2019-09-10 07:28:58,579 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:28:58,990 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 91 [2019-09-10 07:28:59,410 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:29:00,026 WARN L188 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:29:00,609 WARN L188 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2019-09-10 07:29:01,132 WARN L188 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2019-09-10 07:29:01,491 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 93 [2019-09-10 07:29:01,966 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2019-09-10 07:29:02,366 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 93 [2019-09-10 07:29:02,782 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 95 [2019-09-10 07:29:03,140 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2019-09-10 07:29:03,931 WARN L188 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2019-09-10 07:29:04,377 WARN L188 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-10 07:29:04,788 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2019-09-10 07:29:05,374 WARN L188 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2019-09-10 07:29:05,759 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2019-09-10 07:29:08,091 WARN L188 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:29:08,512 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:29:08,869 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:29:09,406 WARN L188 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2019-09-10 07:29:09,749 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:29:10,021 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:29:10,365 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:29:10,786 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2019-09-10 07:29:11,144 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2019-09-10 07:29:11,765 WARN L188 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 95 [2019-09-10 07:29:12,127 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2019-09-10 07:29:12,521 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 93 [2019-09-10 07:29:13,063 WARN L188 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 94 [2019-09-10 07:29:13,409 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2019-09-10 07:29:13,745 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2019-09-10 07:29:14,139 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:29:14,478 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2019-09-10 07:29:15,145 WARN L188 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:29:15,567 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2019-09-10 07:29:15,878 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-10 07:29:16,505 WARN L188 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2019-09-10 07:29:16,840 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2019-09-10 07:29:17,306 WARN L188 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2019-09-10 07:29:17,609 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:29:17,904 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:29:18,330 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 93 [2019-09-10 07:29:18,765 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2019-09-10 07:29:19,176 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2019-09-10 07:29:19,545 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-10 07:29:19,932 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2019-09-10 07:29:20,356 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 95 [2019-09-10 07:29:20,645 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:29:20,991 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-10 07:29:21,577 WARN L188 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:29:21,935 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2019-09-10 07:29:22,380 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-10 07:29:22,651 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:29:23,044 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:29:23,438 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2019-09-10 07:29:23,872 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2019-09-10 07:29:24,226 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-10 07:29:24,766 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:29:25,096 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-10 07:29:25,693 WARN L188 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2019-09-10 07:29:26,023 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:29:26,481 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-10 07:29:26,874 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2019-09-10 07:29:27,341 WARN L188 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-09-10 07:29:27,683 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2019-09-10 07:29:28,017 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:29:28,315 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:29:28,757 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2019-09-10 07:29:29,156 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:29:31,587 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2019-09-10 07:29:32,171 WARN L188 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2019-09-10 07:29:32,556 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2019-09-10 07:29:33,466 WARN L188 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 95 [2019-09-10 07:29:33,878 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2019-09-10 07:29:34,646 WARN L188 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 91 [2019-09-10 07:29:35,283 WARN L188 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 91 [2019-09-10 07:29:35,666 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-10 07:29:36,483 WARN L188 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-10 07:29:36,867 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 92 [2019-09-10 07:29:37,450 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2019-09-10 07:29:37,865 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:29:38,262 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2019-09-10 07:29:38,784 WARN L188 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:29:39,321 WARN L188 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:29:39,833 WARN L188 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:29:40,179 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-10 07:29:40,539 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2019-09-10 07:29:40,882 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:29:41,268 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2019-09-10 07:29:41,546 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 07:29:42,034 WARN L188 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 07:29:42,312 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 07:29:42,678 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:29:43,061 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2019-09-10 07:29:43,351 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:29:44,023 WARN L188 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2019-09-10 07:29:44,397 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:29:44,795 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2019-09-10 07:29:45,164 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2019-09-10 07:29:45,579 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2019-09-10 07:29:45,939 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2019-09-10 07:29:46,279 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:29:46,628 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2019-09-10 07:29:47,070 WARN L188 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2019-09-10 07:29:47,349 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:29:47,694 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:29:48,257 WARN L188 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2019-09-10 07:29:48,602 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:29:49,104 WARN L188 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2019-09-10 07:29:49,509 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2019-09-10 07:29:49,866 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 07:29:50,338 WARN L188 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-10 07:29:50,709 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2019-09-10 07:29:51,070 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-10 07:29:51,647 WARN L188 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2019-09-10 07:29:52,050 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:29:52,611 WARN L188 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 96 [2019-09-10 07:29:52,964 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2019-09-10 07:29:53,755 WARN L188 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-10 07:29:54,141 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:29:54,446 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:29:54,947 WARN L188 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-09-10 07:29:55,321 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2019-09-10 07:29:55,772 WARN L188 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2019-09-10 07:29:56,410 WARN L188 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2019-09-10 07:29:56,734 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:29:57,130 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-10 07:29:57,540 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2019-09-10 07:29:58,021 WARN L188 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2019-09-10 07:29:58,385 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:29:58,838 WARN L188 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2019-09-10 07:29:59,332 WARN L188 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:29:59,795 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:30:00,110 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:30:00,746 WARN L188 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-09-10 07:30:01,068 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-10 07:30:01,689 WARN L188 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:30:02,183 WARN L188 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-10 07:30:02,506 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:30:02,820 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:30:03,240 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-10 07:30:03,586 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:30:03,952 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2019-09-10 07:30:04,215 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:30:04,641 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:30:04,940 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:30:05,242 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-10 07:30:05,705 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-09-10 07:30:06,125 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:30:06,415 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2019-09-10 07:30:06,759 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2019-09-10 07:30:07,224 WARN L188 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 07:30:07,524 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:30:07,902 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2019-09-10 07:30:08,252 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:30:08,517 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:30:08,868 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-10 07:30:09,189 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2019-09-10 07:30:09,610 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2019-09-10 07:30:09,948 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:30:10,281 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:30:10,732 WARN L188 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 07:30:11,026 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2019-09-10 07:30:11,395 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2019-09-10 07:30:11,733 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2019-09-10 07:30:12,031 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-10 07:30:12,364 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:30:12,888 WARN L188 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2019-09-10 07:30:13,184 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:30:13,806 WARN L188 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:30:14,245 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:30:14,550 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2019-09-10 07:30:14,919 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2019-09-10 07:30:15,381 WARN L188 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 89 [2019-09-10 07:30:15,732 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:30:16,245 WARN L188 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-10 07:30:16,566 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-10 07:30:16,869 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:30:17,226 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-10 07:30:17,634 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:30:17,954 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-10 07:30:18,530 WARN L188 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:30:18,937 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 94 [2019-09-10 07:30:19,349 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-10 07:30:19,651 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 07:30:20,083 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2019-09-10 07:30:20,460 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2019-09-10 07:30:20,828 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-10 07:30:21,225 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:30:21,729 WARN L188 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:30:22,171 WARN L188 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-09-10 07:30:22,723 WARN L188 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2019-09-10 07:30:23,023 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:30:23,267 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:30:23,717 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:30:24,105 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2019-09-10 07:30:24,669 WARN L188 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2019-09-10 07:30:24,989 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:30:25,390 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:30:25,762 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:30:26,004 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:30:26,682 WARN L188 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:30:27,077 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:30:27,609 WARN L188 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2019-09-10 07:30:27,973 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2019-09-10 07:30:28,304 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:30:28,629 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:30:29,067 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:30:29,394 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84 [2019-09-10 07:30:29,763 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2019-09-10 07:30:30,044 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:30:30,342 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:30:30,735 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-10 07:30:31,076 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2019-09-10 07:30:31,421 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:30:31,758 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:30:32,067 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:30:32,386 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:30:32,680 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:30:32,996 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:30:33,376 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-10 07:30:33,799 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:30:34,190 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:30:34,464 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:30:34,761 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2019-09-10 07:30:35,169 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:30:35,565 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:30:36,041 WARN L188 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-10 07:30:36,502 WARN L188 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:30:36,848 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2019-09-10 07:30:37,267 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:30:37,704 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2019-09-10 07:30:38,027 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:30:38,634 WARN L188 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84 [2019-09-10 07:30:39,199 WARN L188 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:30:39,499 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 07:30:39,872 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 91 [2019-09-10 07:30:40,187 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2019-09-10 07:30:40,587 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 94 [2019-09-10 07:30:40,895 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:30:41,231 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2019-09-10 07:30:41,588 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 92 [2019-09-10 07:30:41,937 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2019-09-10 07:30:42,264 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2019-09-10 07:30:42,724 WARN L188 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:30:43,109 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:30:43,799 WARN L188 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:30:44,224 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:30:44,553 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 07:30:44,877 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:30:45,395 WARN L188 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-10 07:30:45,663 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:30:46,156 WARN L188 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:30:46,414 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:30:46,904 WARN L188 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:30:47,254 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2019-09-10 07:30:47,630 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-10 07:30:48,064 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2019-09-10 07:30:48,705 WARN L188 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2019-09-10 07:30:49,014 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:30:49,466 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:30:49,928 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2019-09-10 07:30:50,237 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-10 07:30:50,556 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:30:50,872 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:30:51,277 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 93 [2019-09-10 07:30:51,832 WARN L188 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:30:52,059 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:30:52,389 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84 [2019-09-10 07:30:52,853 WARN L188 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2019-09-10 07:30:53,128 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:30:53,601 WARN L188 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-09-10 07:30:54,133 WARN L188 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:30:54,486 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2019-09-10 07:30:54,821 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:30:55,201 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:30:57,964 WARN L188 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2019-09-10 07:30:58,255 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-10 07:30:58,646 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:30:59,046 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 89 [2019-09-10 07:30:59,420 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:30:59,755 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 85 [2019-09-10 07:31:00,205 WARN L188 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:31:00,752 WARN L188 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-10 07:31:01,053 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:31:01,363 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2019-09-10 07:31:01,842 WARN L188 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2019-09-10 07:31:02,171 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2019-09-10 07:31:02,594 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:31:02,978 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2019-09-10 07:31:03,325 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2019-09-10 07:31:03,793 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:31:04,116 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-10 07:31:04,408 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2019-09-10 07:31:04,754 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:31:05,070 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:31:05,377 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:31:05,745 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:31:06,551 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:31:06,867 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:31:07,235 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2019-09-10 07:31:08,136 WARN L188 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 94 [2019-09-10 07:31:08,480 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2019-09-10 07:31:09,070 WARN L188 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 94 [2019-09-10 07:31:09,604 WARN L188 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 98 [2019-09-10 07:31:09,975 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-10 07:31:10,427 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 94 [2019-09-10 07:31:10,950 WARN L188 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2019-09-10 07:31:11,276 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:31:11,800 WARN L188 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:31:12,142 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2019-09-10 07:31:12,455 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:31:12,830 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2019-09-10 07:31:13,286 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 94 [2019-09-10 07:31:13,749 WARN L188 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2019-09-10 07:31:14,239 WARN L188 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 96 [2019-09-10 07:31:14,603 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2019-09-10 07:31:15,073 WARN L188 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:31:15,507 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 96 [2019-09-10 07:31:16,043 WARN L188 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 91 [2019-09-10 07:31:16,395 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2019-09-10 07:31:16,977 WARN L188 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2019-09-10 07:31:17,305 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 85 [2019-09-10 07:31:17,800 WARN L188 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-10 07:31:18,229 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:31:18,544 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:31:19,056 WARN L188 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 90 [2019-09-10 07:31:19,752 WARN L188 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 93 [2019-09-10 07:31:20,302 WARN L188 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2019-09-10 07:31:20,658 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 85 [2019-09-10 07:31:21,020 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:31:21,395 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-10 07:31:21,711 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:31:22,066 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2019-09-10 07:31:22,509 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2019-09-10 07:31:22,946 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2019-09-10 07:31:23,461 WARN L188 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 96 [2019-09-10 07:31:23,810 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:31:24,193 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2019-09-10 07:31:24,684 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 94 [2019-09-10 07:31:25,056 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:31:25,375 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:31:25,633 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:31:26,071 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2019-09-10 07:31:26,450 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2019-09-10 07:31:26,770 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:31:27,168 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-10 07:31:27,696 WARN L188 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-10 07:31:28,153 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:31:28,552 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2019-09-10 07:31:28,911 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:31:29,346 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 07:31:29,768 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 85 [2019-09-10 07:31:30,163 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2019-09-10 07:31:30,597 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2019-09-10 07:31:30,937 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:31:31,317 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 07:31:31,848 WARN L188 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:31:32,143 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:31:32,514 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-10 07:31:32,841 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:31:33,096 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:31:33,470 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 07:31:33,803 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:31:34,231 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 07:31:34,812 WARN L188 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-09-10 07:31:35,117 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:31:35,501 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2019-09-10 07:31:35,952 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:31:36,275 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-10 07:31:36,796 WARN L188 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:31:37,090 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:31:37,626 WARN L188 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 89 [2019-09-10 07:31:38,210 WARN L188 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:31:38,502 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:31:38,826 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2019-09-10 07:31:39,134 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2019-09-10 07:31:39,547 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:31:41,956 WARN L188 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:31:42,266 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2019-09-10 07:31:42,786 WARN L188 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:31:43,130 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:31:43,432 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:31:43,726 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:31:44,190 WARN L188 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-10 07:31:44,418 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:31:44,783 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:31:45,121 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2019-09-10 07:31:45,645 WARN L188 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-10 07:31:45,999 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2019-09-10 07:31:46,395 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2019-09-10 07:31:46,761 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 07:31:47,144 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2019-09-10 07:31:47,567 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2019-09-10 07:31:47,890 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:31:48,239 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:31:48,559 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:31:48,991 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2019-09-10 07:31:49,319 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 85 [2019-09-10 07:31:49,678 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:31:50,059 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2019-09-10 07:31:50,401 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2019-09-10 07:31:50,836 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:31:51,124 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:31:51,398 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-10 07:31:51,933 WARN L188 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 85 [2019-09-10 07:31:52,223 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:31:52,633 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 07:31:52,977 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-10 07:31:53,365 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:31:53,897 WARN L188 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-10 07:31:54,472 WARN L188 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:31:54,866 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:31:55,287 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:31:55,756 WARN L188 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:31:56,119 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2019-09-10 07:31:56,416 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:31:56,815 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-10 07:31:57,251 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:31:57,644 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:31:58,007 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2019-09-10 07:31:58,426 WARN L188 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:31:58,731 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2019-09-10 07:31:59,315 WARN L188 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:31:59,647 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2019-09-10 07:32:00,220 WARN L188 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:32:00,593 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2019-09-10 07:32:00,951 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 07:32:01,261 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:32:01,699 WARN L188 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-10 07:32:02,203 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:32:02,554 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:32:02,889 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:32:03,312 WARN L188 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:32:03,715 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:32:04,126 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2019-09-10 07:32:04,442 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-09-10 07:32:04,906 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 93 [2019-09-10 07:32:05,273 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-10 07:32:05,581 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:32:06,330 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:32:06,751 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:32:07,126 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 93 [2019-09-10 07:32:07,442 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:32:07,793 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-09-10 07:32:08,369 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 95 [2019-09-10 07:32:08,886 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:32:09,249 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-10 07:32:09,618 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:32:09,977 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2019-09-10 07:32:10,367 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2019-09-10 07:32:11,048 WARN L188 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2019-09-10 07:32:11,392 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:32:12,074 WARN L188 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 97 [2019-09-10 07:32:12,526 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2019-09-10 07:32:12,913 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2019-09-10 07:32:13,188 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:32:13,934 WARN L188 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:32:14,343 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2019-09-10 07:32:14,851 WARN L188 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 95 [2019-09-10 07:32:15,361 WARN L188 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2019-09-10 07:32:15,805 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 95 [2019-09-10 07:32:16,175 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2019-09-10 07:32:16,713 WARN L188 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2019-09-10 07:32:17,214 WARN L188 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 93 [2019-09-10 07:32:17,686 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 97 [2019-09-10 07:32:18,114 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-10 07:32:18,766 WARN L188 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2019-09-10 07:32:19,119 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:32:19,606 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2019-09-10 07:32:20,044 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2019-09-10 07:32:20,430 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:32:20,881 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 93 [2019-09-10 07:32:21,498 WARN L188 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:32:21,861 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:32:22,321 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 93 [2019-09-10 07:32:22,772 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2019-09-10 07:32:23,415 WARN L188 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2019-09-10 07:32:23,849 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 91 [2019-09-10 07:32:24,232 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-10 07:32:24,664 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 95 [2019-09-10 07:32:25,041 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2019-09-10 07:32:25,381 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2019-09-10 07:32:26,000 WARN L188 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2019-09-10 07:32:26,415 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:32:26,745 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:32:27,183 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 89 [2019-09-10 07:32:27,813 WARN L188 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 07:32:28,283 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:32:28,673 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2019-09-10 07:32:29,129 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2019-09-10 07:32:29,463 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:32:29,897 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 88 [2019-09-10 07:32:30,377 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:32:30,958 WARN L188 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-10 07:32:31,332 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2019-09-10 07:32:31,733 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2019-09-10 07:32:32,185 WARN L188 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-09-10 07:32:32,671 WARN L188 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2019-09-10 07:32:33,057 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:32:33,479 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 07:32:33,874 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2019-09-10 07:32:34,240 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2019-09-10 07:32:34,629 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2019-09-10 07:32:35,250 WARN L188 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:32:35,831 WARN L188 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2019-09-10 07:32:36,361 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2019-09-10 07:32:36,688 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2019-09-10 07:32:37,021 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2019-09-10 07:32:37,367 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2019-09-10 07:32:37,758 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 88 [2019-09-10 07:32:38,230 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:32:38,605 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:32:39,056 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2019-09-10 07:32:39,591 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 97 [2019-09-10 07:32:40,056 WARN L188 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-10 07:32:40,744 WARN L188 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 99 [2019-09-10 07:32:41,093 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2019-09-10 07:32:41,453 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2019-09-10 07:32:41,810 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-09-10 07:32:42,296 WARN L188 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2019-09-10 07:32:42,759 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2019-09-10 07:32:43,113 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:32:43,457 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:32:43,947 WARN L188 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-10 07:32:44,324 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2019-09-10 07:32:44,684 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2019-09-10 07:32:45,064 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2019-09-10 07:32:45,721 WARN L188 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2019-09-10 07:32:46,094 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2019-09-10 07:32:46,635 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2019-09-10 07:32:47,437 WARN L188 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 92 [2019-09-10 07:32:47,923 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 95 [2019-09-10 07:32:48,250 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:32:48,748 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 96 [2019-09-10 07:32:49,200 WARN L188 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2019-09-10 07:32:49,617 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2019-09-10 07:32:50,109 WARN L188 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 94 [2019-09-10 07:32:50,448 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2019-09-10 07:32:50,931 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:32:51,339 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:32:51,726 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2019-09-10 07:32:52,055 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-10 07:32:52,632 WARN L188 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-10 07:32:53,073 WARN L188 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 99 [2019-09-10 07:32:53,540 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2019-09-10 07:32:53,907 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:32:54,390 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 93 [2019-09-10 07:32:54,917 WARN L188 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2019-09-10 07:32:55,296 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2019-09-10 07:32:55,825 WARN L188 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2019-09-10 07:32:56,167 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:32:56,601 WARN L188 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 97 [2019-09-10 07:32:57,199 WARN L188 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 91 [2019-09-10 07:32:57,760 WARN L188 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 07:32:58,235 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2019-09-10 07:32:58,785 WARN L188 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:32:59,155 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:32:59,475 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2019-09-10 07:33:00,077 WARN L188 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2019-09-10 07:33:00,472 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 07:33:00,805 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-10 07:33:01,144 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:33:01,538 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 07:33:01,887 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:33:02,368 WARN L188 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 101 [2019-09-10 07:33:02,809 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 95 [2019-09-10 07:33:03,406 WARN L188 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 07:33:03,740 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:33:04,200 WARN L188 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:33:04,593 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2019-09-10 07:33:05,075 WARN L188 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2019-09-10 07:33:05,372 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2019-09-10 07:33:05,711 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2019-09-10 07:33:05,999 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:33:06,318 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 07:33:06,648 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 07:33:07,022 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 07:33:07,491 WARN L188 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:33:10,244 WARN L188 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-09-10 07:33:10,527 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:33:10,862 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:33:11,214 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:33:11,697 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:33:12,308 WARN L188 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:33:12,663 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2019-09-10 07:33:13,016 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2019-09-10 07:33:13,333 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:33:13,686 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2019-09-10 07:33:14,038 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:33:14,603 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:33:14,978 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:33:15,434 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2019-09-10 07:33:15,920 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2019-09-10 07:33:16,509 WARN L188 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2019-09-10 07:33:16,846 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 07:33:17,249 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2019-09-10 07:33:17,743 WARN L188 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2019-09-10 07:33:18,063 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-10 07:33:18,461 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2019-09-10 07:33:18,881 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:33:19,206 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:33:19,563 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2019-09-10 07:33:19,910 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:33:20,418 WARN L188 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:33:20,805 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:33:21,271 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2019-09-10 07:33:21,727 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-09-10 07:33:22,171 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:33:22,544 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 85 [2019-09-10 07:33:23,020 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 94 [2019-09-10 07:33:23,396 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 07:33:23,865 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2019-09-10 07:33:24,243 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 07:33:25,024 WARN L188 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2019-09-10 07:33:25,388 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2019-09-10 07:33:25,853 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-10 07:33:26,382 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:33:26,792 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:33:27,272 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2019-09-10 07:33:27,689 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 94 [2019-09-10 07:33:28,392 WARN L188 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:33:28,784 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2019-09-10 07:33:29,135 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:33:29,619 WARN L188 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 85 [2019-09-10 07:33:29,979 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 07:33:30,298 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 07:33:30,625 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2019-09-10 07:33:31,074 WARN L188 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-10 07:33:31,623 WARN L188 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2019-09-10 07:33:31,963 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:33:32,303 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:33:32,631 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-10 07:33:33,274 WARN L188 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 07:33:33,671 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2019-09-10 07:33:34,035 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2019-09-10 07:33:34,389 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-10 07:33:34,742 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:33:35,381 WARN L188 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2019-09-10 07:33:36,143 WARN L188 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:33:36,477 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2019-09-10 07:33:36,931 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2019-09-10 07:33:37,290 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:33:37,822 WARN L188 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2019-09-10 07:33:38,281 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2019-09-10 07:33:38,708 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:33:39,100 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-10 07:33:39,428 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2019-09-10 07:33:39,918 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 07:33:40,236 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:33:41,042 WARN L188 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:33:41,375 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:33:41,784 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:33:42,339 WARN L188 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 100 [2019-09-10 07:33:42,589 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:33:42,889 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-09-10 07:33:43,428 WARN L188 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 93 [2019-09-10 07:33:43,804 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-10 07:33:44,160 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2019-09-10 07:33:44,610 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:33:44,996 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2019-09-10 07:33:45,506 WARN L188 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:33:45,953 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 94 [2019-09-10 07:33:46,332 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-10 07:33:46,850 WARN L188 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2019-09-10 07:33:47,187 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-10 07:33:47,797 WARN L188 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 98 [2019-09-10 07:33:48,249 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 86 [2019-09-10 07:33:48,670 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2019-09-10 07:33:49,068 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-10 07:33:49,473 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 07:33:49,815 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-10 07:33:50,126 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:33:50,581 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2019-09-10 07:33:50,960 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 07:33:51,404 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-10 07:33:51,707 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:33:52,275 WARN L188 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 07:33:52,644 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-10 07:33:52,972 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-10 07:33:53,307 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2019-09-10 07:33:53,990 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:33:55,004 WARN L188 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-10 07:33:55,416 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2019-09-10 07:33:55,830 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:33:56,255 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2019-09-10 07:33:56,647 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-10 07:33:57,110 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 99 [2019-09-10 07:33:57,577 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2019-09-10 07:33:58,316 WARN L188 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2019-09-10 07:33:58,703 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-10 07:33:59,184 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:33:59,806 WARN L188 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2019-09-10 07:34:00,292 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 92 [2019-09-10 07:34:00,712 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2019-09-10 07:34:01,441 WARN L188 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 92 [2019-09-10 07:34:01,858 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2019-09-10 07:34:02,542 WARN L188 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 101 [2019-09-10 07:34:03,147 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 94 [2019-09-10 07:34:03,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:03,265 INFO L93 Difference]: Finished difference Result 504562 states and 645310 transitions. [2019-09-10 07:34:03,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 827 states. [2019-09-10 07:34:03,266 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 106 [2019-09-10 07:34:03,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:04,360 INFO L225 Difference]: With dead ends: 504562 [2019-09-10 07:34:04,360 INFO L226 Difference]: Without dead ends: 504562 [2019-09-10 07:34:04,419 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1051 GetRequests, 180 SyntacticMatches, 13 SemanticMatches, 858 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348265 ImplicationChecksByTransitivity, 331.7s TimeCoverageRelationStatistics Valid=70303, Invalid=668437, Unknown=0, NotChecked=0, Total=738740 [2019-09-10 07:34:08,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504562 states. [2019-09-10 07:34:10,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504562 to 143943. [2019-09-10 07:34:10,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143943 states. [2019-09-10 07:34:11,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143943 states to 143943 states and 186747 transitions. [2019-09-10 07:34:11,066 INFO L78 Accepts]: Start accepts. Automaton has 143943 states and 186747 transitions. Word has length 106 [2019-09-10 07:34:11,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:11,066 INFO L475 AbstractCegarLoop]: Abstraction has 143943 states and 186747 transitions. [2019-09-10 07:34:11,066 INFO L476 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-09-10 07:34:11,066 INFO L276 IsEmpty]: Start isEmpty. Operand 143943 states and 186747 transitions. [2019-09-10 07:34:11,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-09-10 07:34:11,082 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:11,082 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:11,083 INFO L418 AbstractCegarLoop]: === Iteration 36 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:11,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:11,083 INFO L82 PathProgramCache]: Analyzing trace with hash 513756201, now seen corresponding path program 1 times [2019-09-10 07:34:11,083 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:11,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:11,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:11,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:11,085 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:11,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:11,461 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:11,462 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:34:11,462 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:34:11,462 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 108 with the following transitions: [2019-09-10 07:34:11,462 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [113], [115], [117], [120], [123], [126], [128], [130], [133], [136], [139], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [173], [176], [178], [180], [183], [186], [191], [193], [196], [199], [204], [206], [209], [216], [218], [220], [223], [224], [226], [236], [239], [243], [245], [248], [254], [257], [260], [262], [270], [273], [279], [282], [285], [287], [304], [306], [309], [312], [314], [752], [753], [757], [758], [759] [2019-09-10 07:34:11,474 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:34:11,474 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:34:11,490 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:34:11,687 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:34:11,687 INFO L272 AbstractInterpreter]: Visited 101 different actions 352 times. Merged at 42 different actions 223 times. Widened at 10 different actions 15 times. Performed 1250 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1250 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 25 fixpoints after 12 different actions. Largest state had 134 variables. [2019-09-10 07:34:11,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:11,688 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:34:11,688 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:34:11,688 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:34:11,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:11,709 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:34:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:11,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 36 conjunts are in the unsatisfiable core [2019-09-10 07:34:11,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:34:12,089 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:12,090 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:12,428 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 33 [2019-09-10 07:34:12,803 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-10 07:34:12,938 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-10 07:34:13,298 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:13,428 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:13,752 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:14,931 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:14,931 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:34:15,525 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:15,526 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:15,526 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:16,228 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:16,228 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:16,229 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:16,229 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:16,230 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:16,403 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:16,403 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:16,754 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2019-09-10 07:34:17,245 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-10 07:34:17,245 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:17,824 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2019-09-10 07:34:19,363 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-09-10 07:34:19,631 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 68 [2019-09-10 07:34:20,069 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:20,073 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:34:20,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 20, 21] total 51 [2019-09-10 07:34:20,073 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:34:20,074 INFO L454 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-09-10 07:34:20,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-09-10 07:34:20,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=2326, Unknown=0, NotChecked=0, Total=2550 [2019-09-10 07:34:20,075 INFO L87 Difference]: Start difference. First operand 143943 states and 186747 transitions. Second operand 33 states. [2019-09-10 07:34:20,369 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-10 07:34:21,162 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 38 [2019-09-10 07:34:21,416 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2019-09-10 07:34:21,723 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2019-09-10 07:34:23,498 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2019-09-10 07:34:25,908 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2019-09-10 07:34:29,318 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2019-09-10 07:34:44,394 WARN L188 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-09-10 07:34:47,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:47,628 INFO L93 Difference]: Finished difference Result 253814 states and 327193 transitions. [2019-09-10 07:34:47,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-09-10 07:34:47,629 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 107 [2019-09-10 07:34:47,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:47,876 INFO L225 Difference]: With dead ends: 253814 [2019-09-10 07:34:47,877 INFO L226 Difference]: Without dead ends: 253814 [2019-09-10 07:34:47,877 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 151 SyntacticMatches, 29 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2655 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=866, Invalid=6616, Unknown=0, NotChecked=0, Total=7482 [2019-09-10 07:34:48,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253814 states. [2019-09-10 07:34:52,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253814 to 185348. [2019-09-10 07:34:52,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185348 states. [2019-09-10 07:34:52,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185348 states to 185348 states and 240316 transitions. [2019-09-10 07:34:52,920 INFO L78 Accepts]: Start accepts. Automaton has 185348 states and 240316 transitions. Word has length 107 [2019-09-10 07:34:52,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:52,920 INFO L475 AbstractCegarLoop]: Abstraction has 185348 states and 240316 transitions. [2019-09-10 07:34:52,920 INFO L476 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-09-10 07:34:52,920 INFO L276 IsEmpty]: Start isEmpty. Operand 185348 states and 240316 transitions. [2019-09-10 07:34:52,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-09-10 07:34:52,945 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:52,945 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:52,945 INFO L418 AbstractCegarLoop]: === Iteration 37 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:52,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:52,946 INFO L82 PathProgramCache]: Analyzing trace with hash -368533578, now seen corresponding path program 1 times [2019-09-10 07:34:52,946 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:52,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:52,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:52,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:52,947 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:53,007 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-10 07:34:53,007 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:53,007 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 07:34:53,007 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:53,008 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 07:34:53,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 07:34:53,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 07:34:53,008 INFO L87 Difference]: Start difference. First operand 185348 states and 240316 transitions. Second operand 4 states. [2019-09-10 07:34:53,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:53,749 INFO L93 Difference]: Finished difference Result 245676 states and 317690 transitions. [2019-09-10 07:34:53,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:34:53,749 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 107 [2019-09-10 07:34:53,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:54,083 INFO L225 Difference]: With dead ends: 245676 [2019-09-10 07:34:54,083 INFO L226 Difference]: Without dead ends: 245676 [2019-09-10 07:34:54,083 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:34:54,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245676 states. [2019-09-10 07:34:56,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245676 to 184566. [2019-09-10 07:34:56,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184566 states. [2019-09-10 07:34:56,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184566 states to 184566 states and 238752 transitions. [2019-09-10 07:34:56,820 INFO L78 Accepts]: Start accepts. Automaton has 184566 states and 238752 transitions. Word has length 107 [2019-09-10 07:34:56,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:56,821 INFO L475 AbstractCegarLoop]: Abstraction has 184566 states and 238752 transitions. [2019-09-10 07:34:56,821 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 07:34:56,821 INFO L276 IsEmpty]: Start isEmpty. Operand 184566 states and 238752 transitions. [2019-09-10 07:34:56,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-09-10 07:34:56,835 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:56,835 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:34:56,836 INFO L418 AbstractCegarLoop]: === Iteration 38 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:56,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:56,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1282028559, now seen corresponding path program 1 times [2019-09-10 07:34:56,836 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:56,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:56,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:56,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:56,838 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:57,663 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2019-09-10 07:34:57,927 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:57,928 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:34:57,928 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:34:57,928 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 108 with the following transitions: [2019-09-10 07:34:57,928 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [115], [117], [120], [123], [126], [128], [130], [133], [136], [139], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [173], [178], [180], [183], [191], [193], [196], [199], [204], [206], [209], [216], [218], [220], [223], [224], [226], [236], [239], [243], [245], [248], [254], [257], [260], [262], [277], [279], [282], [285], [287], [295], [298], [304], [306], [309], [312], [314], [411], [525], [752], [753], [757], [758], [759] [2019-09-10 07:34:57,933 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:34:57,933 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:34:57,949 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:34:58,147 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:34:58,147 INFO L272 AbstractInterpreter]: Visited 101 different actions 373 times. Merged at 41 different actions 240 times. Widened at 10 different actions 24 times. Performed 1276 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1276 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 26 fixpoints after 11 different actions. Largest state had 134 variables. [2019-09-10 07:34:58,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:58,148 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:34:58,148 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:34:58,148 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) [2019-09-10 07:34:58,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:58,166 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:34:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:58,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 42 conjunts are in the unsatisfiable core [2019-09-10 07:34:58,284 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:34:58,776 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:58,777 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:58,778 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:58,779 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:59,775 WARN L188 SmtUtils]: Spent 940.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 33 [2019-09-10 07:34:59,968 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:00,066 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:00,409 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:00,971 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:35:00,972 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:35:01,442 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:01,443 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:01,443 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:02,693 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:02,815 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:02,815 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:03,201 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-10 07:35:03,201 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:03,203 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:04,503 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-10 07:35:04,821 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:35:04,825 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:35:04,825 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20, 18] total 49 [2019-09-10 07:35:04,825 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:35:04,826 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-09-10 07:35:04,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-09-10 07:35:04,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=2180, Unknown=0, NotChecked=0, Total=2352 [2019-09-10 07:35:04,826 INFO L87 Difference]: Start difference. First operand 184566 states and 238752 transitions. Second operand 36 states. [2019-09-10 07:35:05,121 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2019-09-10 07:35:06,358 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2019-09-10 07:35:06,660 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-10 07:35:07,092 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-10 07:35:07,513 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-10 07:35:07,923 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2019-09-10 07:35:08,421 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-10 07:35:08,901 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-10 07:35:09,933 WARN L188 SmtUtils]: Spent 821.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2019-09-10 07:35:10,711 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 45 [2019-09-10 07:35:12,110 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 53 [2019-09-10 07:35:12,549 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2019-09-10 07:35:13,026 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 60 [2019-09-10 07:35:13,443 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2019-09-10 07:35:16,327 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 60 [2019-09-10 07:35:17,030 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2019-09-10 07:35:23,053 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2019-09-10 07:35:23,411 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-09-10 07:35:26,532 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2019-09-10 07:35:27,476 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-09-10 07:35:30,225 WARN L188 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 112 DAG size of output: 65 [2019-09-10 07:35:32,572 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2019-09-10 07:35:34,465 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 47 [2019-09-10 07:35:35,679 WARN L188 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 64 [2019-09-10 07:35:37,179 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2019-09-10 07:35:37,518 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2019-09-10 07:35:37,747 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-09-10 07:35:38,161 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 82 [2019-09-10 07:35:39,347 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2019-09-10 07:35:40,469 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-09-10 07:35:43,814 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2019-09-10 07:35:44,169 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2019-09-10 07:35:44,506 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2019-09-10 07:35:44,715 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 07:35:45,126 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 79 [2019-09-10 07:35:45,540 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2019-09-10 07:35:48,247 WARN L188 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 105 DAG size of output: 66 [2019-09-10 07:35:48,672 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2019-09-10 07:35:49,744 WARN L188 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-09-10 07:35:50,354 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-09-10 07:35:51,367 WARN L188 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 65 [2019-09-10 07:35:57,043 WARN L188 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 106 DAG size of output: 64 [2019-09-10 07:35:57,429 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2019-09-10 07:35:57,885 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2019-09-10 07:35:58,294 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2019-09-10 07:35:59,484 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 66 [2019-09-10 07:35:59,993 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 79 [2019-09-10 07:36:02,682 WARN L188 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 65 [2019-09-10 07:36:03,072 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 82 [2019-09-10 07:36:04,864 WARN L188 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 59 [2019-09-10 07:36:05,313 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2019-09-10 07:36:05,807 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2019-09-10 07:36:07,579 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-10 07:36:08,206 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2019-09-10 07:36:13,095 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-10 07:36:19,926 WARN L188 SmtUtils]: Spent 3.32 s on a formula simplification. DAG size of input: 116 DAG size of output: 69 [2019-09-10 07:36:20,568 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2019-09-10 07:36:21,425 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-10 07:36:22,655 WARN L188 SmtUtils]: Spent 998.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 89 [2019-09-10 07:36:25,558 WARN L188 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 100 DAG size of output: 61 [2019-09-10 07:36:28,466 WARN L188 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 115 DAG size of output: 71 [2019-09-10 07:36:29,618 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 58 [2019-09-10 07:36:30,044 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-10 07:36:30,268 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2019-09-10 07:36:30,965 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 86 [2019-09-10 07:36:31,398 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2019-09-10 07:36:34,883 WARN L188 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 117 DAG size of output: 70 [2019-09-10 07:36:37,486 WARN L188 SmtUtils]: Spent 2.45 s on a formula simplification. DAG size of input: 110 DAG size of output: 66 [2019-09-10 07:36:37,879 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 61 [2019-09-10 07:36:38,409 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2019-09-10 07:36:38,690 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-09-10 07:36:39,144 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2019-09-10 07:36:39,636 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-10 07:36:39,999 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 54 [2019-09-10 07:36:47,947 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 07:36:48,358 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 49 [2019-09-10 07:36:50,701 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 53 [2019-09-10 07:36:51,024 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2019-09-10 07:36:55,998 WARN L188 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 52 [2019-09-10 07:36:58,364 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:37:01,472 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 54 [2019-09-10 07:37:03,960 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 60 [2019-09-10 07:37:04,279 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2019-09-10 07:37:04,609 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 48 [2019-09-10 07:37:05,933 WARN L188 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 104 DAG size of output: 65 [2019-09-10 07:37:06,339 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-10 07:37:06,992 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2019-09-10 07:37:07,209 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-10 07:37:07,531 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2019-09-10 07:37:07,749 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2019-09-10 07:37:07,980 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-09-10 07:37:12,645 WARN L188 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 104 DAG size of output: 65 [2019-09-10 07:37:12,997 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2019-09-10 07:37:14,294 WARN L188 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 60 [2019-09-10 07:37:14,811 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2019-09-10 07:37:22,637 WARN L188 SmtUtils]: Spent 5.33 s on a formula simplification. DAG size of input: 114 DAG size of output: 70 [2019-09-10 07:37:23,084 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:37:26,706 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 53 [2019-09-10 07:37:26,967 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:37:27,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:37:27,180 INFO L93 Difference]: Finished difference Result 588717 states and 743909 transitions. [2019-09-10 07:37:27,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2019-09-10 07:37:27,180 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 107 [2019-09-10 07:37:27,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:37:27,837 INFO L225 Difference]: With dead ends: 588717 [2019-09-10 07:37:27,837 INFO L226 Difference]: Without dead ends: 588717 [2019-09-10 07:37:27,838 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 156 SyntacticMatches, 28 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9146 ImplicationChecksByTransitivity, 91.7s TimeCoverageRelationStatistics Valid=3851, Invalid=25219, Unknown=0, NotChecked=0, Total=29070 [2019-09-10 07:37:28,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588717 states. [2019-09-10 07:37:35,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588717 to 214232. [2019-09-10 07:37:35,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214232 states. [2019-09-10 07:37:35,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214232 states to 214232 states and 276971 transitions. [2019-09-10 07:37:35,573 INFO L78 Accepts]: Start accepts. Automaton has 214232 states and 276971 transitions. Word has length 107 [2019-09-10 07:37:35,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:37:35,574 INFO L475 AbstractCegarLoop]: Abstraction has 214232 states and 276971 transitions. [2019-09-10 07:37:35,574 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-09-10 07:37:35,574 INFO L276 IsEmpty]: Start isEmpty. Operand 214232 states and 276971 transitions. [2019-09-10 07:37:35,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 07:37:35,587 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:37:35,587 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:37:35,588 INFO L418 AbstractCegarLoop]: === Iteration 39 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:37:35,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:37:35,588 INFO L82 PathProgramCache]: Analyzing trace with hash 2000045827, now seen corresponding path program 1 times [2019-09-10 07:37:35,588 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:37:35,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:37:35,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:37:35,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:37:35,589 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:37:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:37:35,909 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:37:35,909 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:37:35,910 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:37:35,910 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2019-09-10 07:37:35,910 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [113], [115], [117], [120], [123], [128], [130], [133], [136], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [173], [178], [180], [183], [186], [191], [193], [196], [204], [206], [209], [216], [218], [220], [223], [224], [226], [236], [239], [243], [252], [254], [257], [260], [262], [270], [273], [279], [282], [285], [287], [295], [298], [304], [306], [309], [312], [314], [325], [347], [352], [406], [752], [753], [757], [758], [759] [2019-09-10 07:37:35,912 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:37:35,912 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:37:35,935 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:37:36,188 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:37:36,188 INFO L272 AbstractInterpreter]: Visited 102 different actions 487 times. Merged at 41 different actions 342 times. Widened at 15 different actions 59 times. Performed 1626 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1626 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 37 fixpoints after 13 different actions. Largest state had 134 variables. [2019-09-10 07:37:36,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:37:36,188 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:37:36,188 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:37:36,189 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 07:37:36,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:37:36,220 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 07:37:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:37:36,325 INFO L256 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 16 conjunts are in the unsatisfiable core [2019-09-10 07:37:36,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:37:36,384 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:36,414 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:36,482 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:36,674 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:37:36,675 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:37:37,022 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:37,022 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:37,023 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:37,023 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:37,024 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:37,025 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:37,025 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:37,026 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:37,027 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:37,032 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:37,082 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:37:37,095 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:37:37,096 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 27 [2019-09-10 07:37:37,096 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:37:37,096 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-10 07:37:37,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-10 07:37:37,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2019-09-10 07:37:37,097 INFO L87 Difference]: Start difference. First operand 214232 states and 276971 transitions. Second operand 19 states. [2019-09-10 07:37:42,562 WARN L188 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 58 DAG size of output: 37 [2019-09-10 07:37:42,979 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 41 [2019-09-10 07:37:43,463 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 41 [2019-09-10 07:37:44,206 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2019-09-10 07:37:44,649 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-09-10 07:37:46,211 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2019-09-10 07:37:46,369 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 40 [2019-09-10 07:37:47,190 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 37 [2019-09-10 07:37:47,339 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 40 [2019-09-10 07:37:47,787 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2019-09-10 07:37:48,393 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2019-09-10 07:37:49,575 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2019-09-10 07:37:49,721 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2019-09-10 07:37:49,916 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2019-09-10 07:37:50,085 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2019-09-10 07:37:50,371 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 38 [2019-09-10 07:37:50,537 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2019-09-10 07:37:50,681 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2019-09-10 07:37:51,935 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2019-09-10 07:37:52,109 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 37 [2019-09-10 07:37:53,756 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 36 [2019-09-10 07:37:53,930 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 42 [2019-09-10 07:37:54,222 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2019-09-10 07:37:54,561 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2019-09-10 07:37:55,023 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2019-09-10 07:37:55,222 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 44 [2019-09-10 07:37:55,558 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 50 [2019-09-10 07:37:55,727 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2019-09-10 07:37:56,053 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2019-09-10 07:37:56,377 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 47 [2019-09-10 07:37:56,559 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2019-09-10 07:37:57,615 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 41 [2019-09-10 07:37:57,808 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 47 [2019-09-10 07:37:58,001 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2019-09-10 07:37:58,162 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2019-09-10 07:37:58,336 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2019-09-10 07:37:58,650 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2019-09-10 07:37:58,808 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2019-09-10 07:37:58,954 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 37 [2019-09-10 07:37:59,228 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2019-09-10 07:37:59,537 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 42 [2019-09-10 07:37:59,680 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2019-09-10 07:38:00,511 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2019-09-10 07:38:00,964 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2019-09-10 07:38:01,112 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 41 [2019-09-10 07:38:01,645 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 41 [2019-09-10 07:38:04,230 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 40 [2019-09-10 07:38:09,712 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 40 [2019-09-10 07:38:10,371 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2019-09-10 07:38:10,901 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 41 [2019-09-10 07:38:11,587 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 43 [2019-09-10 07:38:11,888 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 41 [2019-09-10 07:38:13,143 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2019-09-10 07:38:14,470 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 41 [2019-09-10 07:38:14,774 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2019-09-10 07:38:15,374 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2019-09-10 07:38:15,842 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 48 [2019-09-10 07:38:16,036 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2019-09-10 07:38:16,813 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2019-09-10 07:38:17,004 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 42 [2019-09-10 07:38:17,655 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 38 [2019-09-10 07:38:18,804 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 36 [2019-09-10 07:38:19,492 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 39 [2019-09-10 07:38:20,230 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 42 [2019-09-10 07:38:20,622 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 45 [2019-09-10 07:38:21,178 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 41 [2019-09-10 07:38:22,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:38:22,609 INFO L93 Difference]: Finished difference Result 622070 states and 790725 transitions. [2019-09-10 07:38:22,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 277 states. [2019-09-10 07:38:22,610 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 108 [2019-09-10 07:38:22,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:38:23,315 INFO L225 Difference]: With dead ends: 622070 [2019-09-10 07:38:23,316 INFO L226 Difference]: Without dead ends: 622070 [2019-09-10 07:38:23,318 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 199 SyntacticMatches, 2 SemanticMatches, 300 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36402 ImplicationChecksByTransitivity, 34.5s TimeCoverageRelationStatistics Valid=11911, Invalid=78991, Unknown=0, NotChecked=0, Total=90902 [2019-09-10 07:38:23,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622070 states. [2019-09-10 07:38:28,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622070 to 281420. [2019-09-10 07:38:28,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281420 states. [2019-09-10 07:38:28,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281420 states to 281420 states and 363855 transitions. [2019-09-10 07:38:28,403 INFO L78 Accepts]: Start accepts. Automaton has 281420 states and 363855 transitions. Word has length 108 [2019-09-10 07:38:28,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:38:28,403 INFO L475 AbstractCegarLoop]: Abstraction has 281420 states and 363855 transitions. [2019-09-10 07:38:28,404 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-10 07:38:28,404 INFO L276 IsEmpty]: Start isEmpty. Operand 281420 states and 363855 transitions. [2019-09-10 07:38:28,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 07:38:28,419 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:38:28,420 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:38:28,420 INFO L418 AbstractCegarLoop]: === Iteration 40 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:38:28,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:38:28,420 INFO L82 PathProgramCache]: Analyzing trace with hash 733958193, now seen corresponding path program 1 times [2019-09-10 07:38:28,421 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:38:28,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:38:28,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:38:28,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:38:28,422 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:38:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:38:28,865 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:38:28,865 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:38:28,865 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:38:28,866 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2019-09-10 07:38:28,866 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [113], [115], [117], [120], [123], [128], [130], [133], [136], [139], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [173], [176], [178], [180], [183], [186], [191], [193], [196], [199], [204], [206], [209], [216], [218], [220], [223], [224], [226], [236], [239], [243], [245], [248], [254], [257], [260], [262], [270], [273], [279], [282], [285], [287], [304], [306], [309], [312], [314], [352], [406], [752], [753], [757], [758], [759] [2019-09-10 07:38:28,868 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:38:28,868 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:38:28,883 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:38:29,108 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:38:29,109 INFO L272 AbstractInterpreter]: Visited 102 different actions 446 times. Merged at 42 different actions 306 times. Widened at 15 different actions 43 times. Performed 1485 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1485 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 35 fixpoints after 14 different actions. Largest state had 134 variables. [2019-09-10 07:38:29,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:38:29,109 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:38:29,109 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:38:29,109 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) [2019-09-10 07:38:29,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:38:29,127 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:38:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:38:29,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-10 07:38:29,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:38:29,313 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:29,356 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:29,400 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:29,508 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:29,723 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:38:29,723 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:38:33,827 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:33,828 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:33,828 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:33,829 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:33,830 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:33,830 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:33,831 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:33,831 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:33,832 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:33,833 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:33,890 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (8)] Exception during sending of exit command (exit): Broken pipe [2019-09-10 07:38:33,904 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:38:33,904 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 11, 11] total 39 [2019-09-10 07:38:33,904 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:38:33,905 INFO L454 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-09-10 07:38:33,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-09-10 07:38:33,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1368, Unknown=0, NotChecked=0, Total=1482 [2019-09-10 07:38:33,906 INFO L87 Difference]: Start difference. First operand 281420 states and 363855 transitions. Second operand 30 states. [2019-09-10 07:38:43,335 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2019-09-10 07:38:46,812 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-09-10 07:38:49,521 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-09-10 07:38:50,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:38:50,512 INFO L93 Difference]: Finished difference Result 367279 states and 471087 transitions. [2019-09-10 07:38:50,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2019-09-10 07:38:50,513 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 108 [2019-09-10 07:38:50,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:38:51,329 INFO L225 Difference]: With dead ends: 367279 [2019-09-10 07:38:51,329 INFO L226 Difference]: Without dead ends: 367279 [2019-09-10 07:38:51,330 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 197 SyntacticMatches, 2 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8912 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=3595, Invalid=24127, Unknown=0, NotChecked=0, Total=27722 [2019-09-10 07:38:51,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367279 states. [2019-09-10 07:38:56,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367279 to 282521. [2019-09-10 07:38:56,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282521 states. [2019-09-10 07:38:57,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282521 states to 282521 states and 365266 transitions. [2019-09-10 07:38:57,042 INFO L78 Accepts]: Start accepts. Automaton has 282521 states and 365266 transitions. Word has length 108 [2019-09-10 07:38:57,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:38:57,042 INFO L475 AbstractCegarLoop]: Abstraction has 282521 states and 365266 transitions. [2019-09-10 07:38:57,042 INFO L476 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-09-10 07:38:57,042 INFO L276 IsEmpty]: Start isEmpty. Operand 282521 states and 365266 transitions. [2019-09-10 07:38:57,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 07:38:57,053 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:38:57,054 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 07:38:57,054 INFO L418 AbstractCegarLoop]: === Iteration 41 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:38:57,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:38:57,054 INFO L82 PathProgramCache]: Analyzing trace with hash -553713199, now seen corresponding path program 1 times [2019-09-10 07:38:57,055 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:38:57,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:38:57,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:38:57,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:38:57,056 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:38:57,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:38:57,098 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-10 07:38:57,098 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:38:57,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:38:57,098 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:38:57,099 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:38:57,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:38:57,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:38:57,099 INFO L87 Difference]: Start difference. First operand 282521 states and 365266 transitions. Second operand 3 states. [2019-09-10 07:38:58,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:38:58,208 INFO L93 Difference]: Finished difference Result 171032 states and 216007 transitions. [2019-09-10 07:38:58,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:38:58,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2019-09-10 07:38:58,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:38:58,376 INFO L225 Difference]: With dead ends: 171032 [2019-09-10 07:38:58,376 INFO L226 Difference]: Without dead ends: 171032 [2019-09-10 07:38:58,377 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 07:38:58,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171032 states. [2019-09-10 07:39:03,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171032 to 171032. [2019-09-10 07:39:03,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171032 states. [2019-09-10 07:39:04,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171032 states to 171032 states and 216007 transitions. [2019-09-10 07:39:04,152 INFO L78 Accepts]: Start accepts. Automaton has 171032 states and 216007 transitions. Word has length 108 [2019-09-10 07:39:04,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:39:04,152 INFO L475 AbstractCegarLoop]: Abstraction has 171032 states and 216007 transitions. [2019-09-10 07:39:04,153 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:39:04,153 INFO L276 IsEmpty]: Start isEmpty. Operand 171032 states and 216007 transitions. [2019-09-10 07:39:04,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 07:39:04,160 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:39:04,160 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 07:39:04,160 INFO L418 AbstractCegarLoop]: === Iteration 42 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:39:04,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:04,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1381152875, now seen corresponding path program 1 times [2019-09-10 07:39:04,160 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:39:04,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:04,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:04,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:04,161 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:39:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:04,292 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 07:39:04,293 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:39:04,293 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:39:04,293 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2019-09-10 07:39:04,293 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [113], [115], [117], [120], [123], [126], [128], [130], [133], [136], [139], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [173], [176], [178], [180], [183], [186], [189], [191], [193], [196], [199], [202], [204], [206], [209], [212], [216], [218], [220], [223], [224], [226], [229], [234], [236], [239], [254], [257], [260], [262], [279], [282], [285], [287], [304], [306], [309], [312], [314], [752], [753], [757], [758], [759] [2019-09-10 07:39:04,295 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:39:04,295 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:39:04,310 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:39:04,586 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:39:04,586 INFO L272 AbstractInterpreter]: Visited 101 different actions 583 times. Merged at 41 different actions 419 times. Widened at 15 different actions 76 times. Performed 1857 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1857 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 65 fixpoints after 17 different actions. Largest state had 134 variables. [2019-09-10 07:39:04,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:04,587 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:39:04,587 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:39:04,587 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) [2019-09-10 07:39:04,616 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:04,616 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:39:04,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:04,727 INFO L256 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 24 conjunts are in the unsatisfiable core [2019-09-10 07:39:04,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:39:04,882 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 07:39:04,883 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:39:05,005 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (9)] Exception during sending of exit command (exit): Broken pipe [2019-09-10 07:39:05,018 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:39:05,018 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 14 [2019-09-10 07:39:05,019 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:39:05,019 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 07:39:05,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 07:39:05,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2019-09-10 07:39:05,020 INFO L87 Difference]: Start difference. First operand 171032 states and 216007 transitions. Second operand 9 states. [2019-09-10 07:39:05,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:39:05,604 INFO L93 Difference]: Finished difference Result 193605 states and 241341 transitions. [2019-09-10 07:39:05,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-10 07:39:05,604 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 108 [2019-09-10 07:39:05,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:39:05,796 INFO L225 Difference]: With dead ends: 193605 [2019-09-10 07:39:05,797 INFO L226 Difference]: Without dead ends: 193605 [2019-09-10 07:39:05,797 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 207 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2019-09-10 07:39:05,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193605 states. [2019-09-10 07:39:07,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193605 to 174503. [2019-09-10 07:39:07,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174503 states. [2019-09-10 07:39:07,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174503 states to 174503 states and 220155 transitions. [2019-09-10 07:39:07,673 INFO L78 Accepts]: Start accepts. Automaton has 174503 states and 220155 transitions. Word has length 108 [2019-09-10 07:39:07,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:39:07,674 INFO L475 AbstractCegarLoop]: Abstraction has 174503 states and 220155 transitions. [2019-09-10 07:39:07,674 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 07:39:07,674 INFO L276 IsEmpty]: Start isEmpty. Operand 174503 states and 220155 transitions. [2019-09-10 07:39:07,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 07:39:07,678 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:39:07,678 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, 1, 1] [2019-09-10 07:39:07,679 INFO L418 AbstractCegarLoop]: === Iteration 43 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:39:07,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:07,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1630476723, now seen corresponding path program 1 times [2019-09-10 07:39:07,679 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:39:07,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:07,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:07,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:07,681 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:39:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:08,024 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:39:08,025 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:39:08,025 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:39:08,025 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2019-09-10 07:39:08,025 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [115], [117], [120], [123], [126], [128], [130], [133], [136], [139], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [173], [178], [180], [183], [191], [193], [196], [199], [202], [204], [206], [209], [216], [218], [220], [223], [224], [226], [236], [239], [241], [254], [257], [260], [262], [277], [279], [282], [285], [287], [295], [298], [304], [306], [309], [312], [314], [411], [525], [752], [753], [757], [758], [759] [2019-09-10 07:39:08,027 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:39:08,027 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:39:08,041 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:39:08,220 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:39:08,220 INFO L272 AbstractInterpreter]: Visited 100 different actions 385 times. Merged at 40 different actions 249 times. Widened at 15 different actions 34 times. Performed 1396 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1396 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 26 fixpoints after 12 different actions. Largest state had 134 variables. [2019-09-10 07:39:08,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:08,220 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:39:08,221 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:39:08,221 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) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:39:08,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:08,236 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:39:08,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:08,351 INFO L256 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 30 conjunts are in the unsatisfiable core [2019-09-10 07:39:08,354 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:39:08,778 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:39:10,107 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:39:10,544 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:39:10,545 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:39:11,610 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:39:11,610 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:39:11,611 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:39:13,424 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:39:13,509 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:39:13,592 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:39:13,596 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:39:13,596 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16, 15] total 38 [2019-09-10 07:39:13,596 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:39:13,597 INFO L454 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-09-10 07:39:13,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-09-10 07:39:13,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1259, Unknown=0, NotChecked=0, Total=1406 [2019-09-10 07:39:13,597 INFO L87 Difference]: Start difference. First operand 174503 states and 220155 transitions. Second operand 27 states. [2019-09-10 07:39:13,808 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 07:39:14,196 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2019-09-10 07:39:14,360 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2019-09-10 07:39:14,590 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2019-09-10 07:39:14,794 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2019-09-10 07:39:15,580 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 33 [2019-09-10 07:39:15,741 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 35 [2019-09-10 07:39:17,004 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 43 [2019-09-10 07:39:17,157 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 35 [2019-09-10 07:39:17,398 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 46 [2019-09-10 07:39:17,577 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 38 [2019-09-10 07:39:17,922 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2019-09-10 07:39:18,332 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2019-09-10 07:39:19,388 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 72 [2019-09-10 07:39:19,764 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 75 [2019-09-10 07:39:20,469 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2019-09-10 07:39:20,795 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2019-09-10 07:39:21,314 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2019-09-10 07:39:21,610 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2019-09-10 07:39:22,330 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2019-09-10 07:39:22,512 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2019-09-10 07:39:22,707 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2019-09-10 07:39:24,592 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2019-09-10 07:39:27,349 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2019-09-10 07:39:27,559 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2019-09-10 07:39:27,713 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2019-09-10 07:39:28,094 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2019-09-10 07:39:28,320 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2019-09-10 07:39:28,767 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2019-09-10 07:39:29,110 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2019-09-10 07:39:29,407 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2019-09-10 07:39:29,913 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-09-10 07:39:30,178 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:39:30,344 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2019-09-10 07:39:31,401 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2019-09-10 07:39:33,028 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2019-09-10 07:39:35,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:39:35,671 INFO L93 Difference]: Finished difference Result 380866 states and 478261 transitions. [2019-09-10 07:39:35,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2019-09-10 07:39:35,672 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 108 [2019-09-10 07:39:35,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:39:36,058 INFO L225 Difference]: With dead ends: 380866 [2019-09-10 07:39:36,059 INFO L226 Difference]: Without dead ends: 380866 [2019-09-10 07:39:36,059 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 157 SyntacticMatches, 36 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4909 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=2517, Invalid=12735, Unknown=0, NotChecked=0, Total=15252 [2019-09-10 07:39:36,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380866 states. [2019-09-10 07:39:38,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380866 to 190808. [2019-09-10 07:39:38,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190808 states. [2019-09-10 07:39:38,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190808 states to 190808 states and 240494 transitions. [2019-09-10 07:39:38,757 INFO L78 Accepts]: Start accepts. Automaton has 190808 states and 240494 transitions. Word has length 108 [2019-09-10 07:39:38,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:39:38,758 INFO L475 AbstractCegarLoop]: Abstraction has 190808 states and 240494 transitions. [2019-09-10 07:39:38,758 INFO L476 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-09-10 07:39:38,758 INFO L276 IsEmpty]: Start isEmpty. Operand 190808 states and 240494 transitions. [2019-09-10 07:39:38,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 07:39:38,762 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:39:38,762 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:39:38,762 INFO L418 AbstractCegarLoop]: === Iteration 44 === [mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:39:38,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:38,762 INFO L82 PathProgramCache]: Analyzing trace with hash -868674286, now seen corresponding path program 1 times [2019-09-10 07:39:38,763 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:39:38,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:38,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:38,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:38,764 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:39:38,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:39,194 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:39:39,194 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:39:39,195 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:39:39,195 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2019-09-10 07:39:39,195 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [115], [117], [120], [123], [126], [128], [130], [133], [136], [139], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [173], [178], [180], [183], [186], [191], [193], [196], [199], [202], [204], [206], [209], [216], [218], [220], [223], [224], [226], [236], [239], [243], [254], [257], [260], [262], [270], [273], [279], [282], [285], [287], [295], [298], [304], [306], [309], [312], [314], [411], [525], [752], [753], [757], [758], [759] [2019-09-10 07:39:39,198 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:39:39,198 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:39:39,213 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:39:39,384 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:39:39,385 INFO L272 AbstractInterpreter]: Visited 102 different actions 370 times. Merged at 42 different actions 237 times. Widened at 10 different actions 22 times. Performed 1277 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1277 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 27 fixpoints after 10 different actions. Largest state had 134 variables. [2019-09-10 07:39:39,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:39,385 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:39:39,385 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:39:39,385 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 07:39:39,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:39,411 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 07:39:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:39,527 INFO L256 TraceCheckSpWp]: Trace formula consists of 780 conjuncts, 61 conjunts are in the unsatisfiable core [2019-09-10 07:39:39,530 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:39:40,990 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:39:41,287 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:39:47,866 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:39:47,866 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:39:48,792 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:39:48,793 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:39:48,793 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:39:49,815 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 35 [2019-09-10 07:39:50,341 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms