/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/array-multidimensional/rev-3-u.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 23:22:21,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 23:22:21,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 23:22:21,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 23:22:21,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 23:22:21,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 23:22:21,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 23:22:21,681 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 23:22:21,683 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 23:22:21,684 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 23:22:21,685 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 23:22:21,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 23:22:21,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 23:22:21,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 23:22:21,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 23:22:21,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 23:22:21,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 23:22:21,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 23:22:21,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 23:22:21,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 23:22:21,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 23:22:21,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 23:22:21,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 23:22:21,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 23:22:21,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 23:22:21,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 23:22:21,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 23:22:21,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 23:22:21,711 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-23 23:22:21,725 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 23:22:21,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 23:22:21,726 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-23 23:22:21,727 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-23 23:22:21,727 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-23 23:22:21,727 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-23 23:22:21,727 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-23 23:22:21,728 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-23 23:22:21,728 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-23 23:22:21,728 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-23 23:22:21,728 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-23 23:22:21,728 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-23 23:22:21,728 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-23 23:22:21,729 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-23 23:22:21,729 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-23 23:22:21,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 23:22:21,730 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 23:22:21,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 23:22:21,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 23:22:21,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 23:22:21,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 23:22:21,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 23:22:21,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 23:22:21,731 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 23:22:21,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 23:22:21,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 23:22:21,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 23:22:21,732 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 23:22:21,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 23:22:21,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 23:22:21,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 23:22:21,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 23:22:21,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 23:22:21,733 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-23 23:22:21,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 23:22:21,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 23:22:21,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 23:22:21,734 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-23 23:22:22,003 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 23:22:22,015 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 23:22:22,018 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 23:22:22,020 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 23:22:22,020 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 23:22:22,021 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/rev-3-u.c [2019-11-23 23:22:22,096 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a5e858b/b6cd2825542e487ebace5bfc4789659b/FLAG069a76078 [2019-11-23 23:22:22,569 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 23:22:22,570 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/rev-3-u.c [2019-11-23 23:22:22,578 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a5e858b/b6cd2825542e487ebace5bfc4789659b/FLAG069a76078 [2019-11-23 23:22:22,923 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a5e858b/b6cd2825542e487ebace5bfc4789659b [2019-11-23 23:22:22,931 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 23:22:22,932 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 23:22:22,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 23:22:22,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 23:22:22,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 23:22:22,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:22:22" (1/1) ... [2019-11-23 23:22:22,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@478ffe6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:22, skipping insertion in model container [2019-11-23 23:22:22,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:22:22" (1/1) ... [2019-11-23 23:22:22,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 23:22:22,971 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 23:22:23,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:22:23,148 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 23:22:23,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:22:23,321 INFO L208 MainTranslator]: Completed translation [2019-11-23 23:22:23,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:23 WrapperNode [2019-11-23 23:22:23,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 23:22:23,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 23:22:23,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 23:22:23,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 23:22:23,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:23" (1/1) ... [2019-11-23 23:22:23,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:23" (1/1) ... [2019-11-23 23:22:23,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 23:22:23,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 23:22:23,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 23:22:23,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 23:22:23,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:23" (1/1) ... [2019-11-23 23:22:23,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:23" (1/1) ... [2019-11-23 23:22:23,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:23" (1/1) ... [2019-11-23 23:22:23,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:23" (1/1) ... [2019-11-23 23:22:23,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:23" (1/1) ... [2019-11-23 23:22:23,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:23" (1/1) ... [2019-11-23 23:22:23,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:23" (1/1) ... [2019-11-23 23:22:23,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 23:22:23,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 23:22:23,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 23:22:23,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 23:22:23,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:23" (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 [2019-11-23 23:22:23,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-23 23:22:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 23:22:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 23:22:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-23 23:22:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-23 23:22:23,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-23 23:22:23,897 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 23:22:23,897 INFO L284 CfgBuilder]: Removed 15 assume(true) statements. [2019-11-23 23:22:23,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:22:23 BoogieIcfgContainer [2019-11-23 23:22:23,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 23:22:23,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 23:22:23,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 23:22:23,902 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 23:22:23,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:22:22" (1/3) ... [2019-11-23 23:22:23,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6749bdc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:22:23, skipping insertion in model container [2019-11-23 23:22:23,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:23" (2/3) ... [2019-11-23 23:22:23,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6749bdc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:22:23, skipping insertion in model container [2019-11-23 23:22:23,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:22:23" (3/3) ... [2019-11-23 23:22:23,906 INFO L109 eAbstractionObserver]: Analyzing ICFG rev-3-u.c [2019-11-23 23:22:23,913 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 23:22:23,919 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 23:22:23,930 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 23:22:23,951 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 23:22:23,952 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 23:22:23,952 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 23:22:23,952 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 23:22:23,952 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 23:22:23,952 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 23:22:23,952 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 23:22:23,952 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 23:22:23,963 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-23 23:22:23,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-23 23:22:23,969 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:22:23,970 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:22:23,971 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:22:23,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:22:23,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1471508755, now seen corresponding path program 1 times [2019-11-23 23:22:23,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:22:23,987 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664710837] [2019-11-23 23:22:23,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:22:24,054 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 23:22:24,055 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [975147460] [2019-11-23 23:22:24,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:22:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:22:24,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-23 23:22:24,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:22:24,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:22:24,200 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:22:24,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:22:24,208 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664710837] [2019-11-23 23:22:24,209 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 23:22:24,209 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975147460] [2019-11-23 23:22:24,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:22:24,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-23 23:22:24,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669270802] [2019-11-23 23:22:24,217 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:22:24,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:22:24,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:22:24,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:22:24,234 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 4 states. [2019-11-23 23:22:24,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:22:24,347 INFO L93 Difference]: Finished difference Result 30 states and 49 transitions. [2019-11-23 23:22:24,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:22:24,351 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-23 23:22:24,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:22:24,364 INFO L225 Difference]: With dead ends: 30 [2019-11-23 23:22:24,364 INFO L226 Difference]: Without dead ends: 18 [2019-11-23 23:22:24,373 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:22:24,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-23 23:22:24,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-23 23:22:24,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-23 23:22:24,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 28 transitions. [2019-11-23 23:22:24,421 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 28 transitions. Word has length 8 [2019-11-23 23:22:24,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:22:24,421 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 28 transitions. [2019-11-23 23:22:24,421 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:22:24,421 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2019-11-23 23:22:24,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-23 23:22:24,422 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:22:24,423 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:22:24,627 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:22:24,627 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:22:24,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:22:24,628 INFO L82 PathProgramCache]: Analyzing trace with hash -685417031, now seen corresponding path program 1 times [2019-11-23 23:22:24,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:22:24,629 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148158219] [2019-11-23 23:22:24,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:22:24,634 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 23:22:24,635 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1363710701] [2019-11-23 23:22:24,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:22:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:22:24,678 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-23 23:22:24,679 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:22:24,698 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-23 23:22:24,699 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:22:24,726 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-23 23:22:24,727 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148158219] [2019-11-23 23:22:24,727 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 23:22:24,728 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363710701] [2019-11-23 23:22:24,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:22:24,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-23 23:22:24,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094660254] [2019-11-23 23:22:24,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-23 23:22:24,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:22:24,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-23 23:22:24,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-23 23:22:24,733 INFO L87 Difference]: Start difference. First operand 18 states and 28 transitions. Second operand 6 states. [2019-11-23 23:22:24,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:22:24,867 INFO L93 Difference]: Finished difference Result 50 states and 81 transitions. [2019-11-23 23:22:24,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 23:22:24,868 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2019-11-23 23:22:24,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:22:24,869 INFO L225 Difference]: With dead ends: 50 [2019-11-23 23:22:24,869 INFO L226 Difference]: Without dead ends: 36 [2019-11-23 23:22:24,871 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-23 23:22:24,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-23 23:22:24,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2019-11-23 23:22:24,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-23 23:22:24,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 47 transitions. [2019-11-23 23:22:24,893 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 47 transitions. Word has length 12 [2019-11-23 23:22:24,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:22:24,893 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 47 transitions. [2019-11-23 23:22:24,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-23 23:22:24,893 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 47 transitions. [2019-11-23 23:22:24,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-23 23:22:24,895 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:22:24,895 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:22:25,098 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:22:25,099 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:22:25,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:22:25,100 INFO L82 PathProgramCache]: Analyzing trace with hash -66895335, now seen corresponding path program 1 times [2019-11-23 23:22:25,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:22:25,100 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321506417] [2019-11-23 23:22:25,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:22:25,105 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 23:22:25,105 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1828597144] [2019-11-23 23:22:25,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:22:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:22:25,164 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-23 23:22:25,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:22:25,185 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-23 23:22:25,186 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:22:25,206 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-23 23:22:25,207 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321506417] [2019-11-23 23:22:25,207 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 23:22:25,207 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828597144] [2019-11-23 23:22:25,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:22:25,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-23 23:22:25,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180322536] [2019-11-23 23:22:25,208 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-23 23:22:25,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:22:25,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-23 23:22:25,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-23 23:22:25,209 INFO L87 Difference]: Start difference. First operand 32 states and 47 transitions. Second operand 6 states. [2019-11-23 23:22:25,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:22:25,349 INFO L93 Difference]: Finished difference Result 84 states and 131 transitions. [2019-11-23 23:22:25,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 23:22:25,349 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-11-23 23:22:25,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:22:25,351 INFO L225 Difference]: With dead ends: 84 [2019-11-23 23:22:25,351 INFO L226 Difference]: Without dead ends: 56 [2019-11-23 23:22:25,355 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-23 23:22:25,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-11-23 23:22:25,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2019-11-23 23:22:25,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-23 23:22:25,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 69 transitions. [2019-11-23 23:22:25,381 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 69 transitions. Word has length 20 [2019-11-23 23:22:25,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:22:25,384 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 69 transitions. [2019-11-23 23:22:25,384 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-23 23:22:25,384 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 69 transitions. [2019-11-23 23:22:25,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-23 23:22:25,385 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:22:25,385 INFO L410 BasicCegarLoop]: trace histogram [8, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:22:25,587 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:22:25,587 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:22:25,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:22:25,588 INFO L82 PathProgramCache]: Analyzing trace with hash -587252711, now seen corresponding path program 1 times [2019-11-23 23:22:25,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:22:25,589 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785886107] [2019-11-23 23:22:25,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:22:25,594 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 23:22:25,594 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1698683900] [2019-11-23 23:22:25,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:22:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:22:25,646 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-23 23:22:25,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:22:25,692 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-11-23 23:22:25,692 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:22:25,741 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-11-23 23:22:25,742 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785886107] [2019-11-23 23:22:25,742 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 23:22:25,742 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698683900] [2019-11-23 23:22:25,743 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1434027346] [2019-11-23 23:22:25,767 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-11-23 23:22:25,768 INFO L166 IcfgInterpreter]: Building call graph [2019-11-23 23:22:25,774 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-23 23:22:25,781 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-23 23:22:25,782 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-23 23:22:27,901 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 151 [2019-11-23 23:22:28,020 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 151 [2019-11-23 23:22:28,296 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 155 [2019-11-23 23:22:32,010 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2019-11-23 23:22:32,142 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2019-11-23 23:22:35,501 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 214 [2019-11-23 23:22:35,729 WARN L192 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 211 [2019-11-23 23:22:37,146 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2019-11-23 23:22:37,336 WARN L192 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 214 [2019-11-23 23:22:39,900 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 221 [2019-11-23 23:22:41,479 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 232 [2019-11-23 23:22:57,443 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 283 [2019-11-23 23:22:59,737 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 287 [2019-11-23 23:23:01,475 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 296 DAG size of output: 292 [2019-11-23 23:23:01,631 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 290 [2019-11-23 23:23:01,869 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 293 [2019-11-23 23:23:03,683 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 301 [2019-11-23 23:23:03,851 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 302 DAG size of output: 296 [2019-11-23 23:23:04,087 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 299 [2019-11-23 23:23:06,062 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 303 [2019-11-23 23:23:06,201 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 304 [2019-11-23 23:23:08,349 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 308 [2019-11-23 23:23:08,468 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 309 [2019-11-23 23:23:10,383 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 314 [2019-11-23 23:23:10,531 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 308 [2019-11-23 23:23:10,666 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 306 [2019-11-23 23:23:10,780 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 307 [2019-11-23 23:23:13,149 WARN L192 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2019-11-23 23:23:13,480 WARN L192 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 312 DAG size of output: 311 [2019-11-23 23:23:15,838 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 314 [2019-11-23 23:23:15,988 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 314 [2019-11-23 23:23:18,119 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 321 [2019-11-23 23:23:18,257 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 317 [2019-11-23 23:23:20,454 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2019-11-23 23:23:20,592 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 321 DAG size of output: 321 [2019-11-23 23:23:22,773 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 328 [2019-11-23 23:23:22,906 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 329 DAG size of output: 326 [2019-11-23 23:23:25,199 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 337 DAG size of output: 333 [2019-11-23 23:23:25,340 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 330 [2019-11-23 23:23:27,622 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 336 [2019-11-23 23:23:27,761 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 337 DAG size of output: 333 [2019-11-23 23:23:30,356 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 336 [2019-11-23 23:23:30,502 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 337 DAG size of output: 336 [2019-11-23 23:23:30,663 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 339 [2019-11-23 23:23:30,806 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 340 DAG size of output: 337 [2019-11-23 23:23:30,952 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 338 [2019-11-23 23:23:31,088 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 339 [2019-11-23 23:23:33,597 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 343 [2019-11-23 23:23:33,741 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 344 DAG size of output: 344 [2019-11-23 23:23:36,322 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 348 [2019-11-23 23:23:36,476 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 349 [2019-11-23 23:23:39,252 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 353 [2019-11-23 23:23:39,408 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 354 DAG size of output: 352 [2019-11-23 23:23:41,894 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 356 DAG size of output: 355 [2019-11-23 23:23:42,038 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 356 DAG size of output: 354 [2019-11-23 23:23:44,625 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2019-11-23 23:23:44,769 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 358 [2019-11-23 23:23:47,471 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 368 DAG size of output: 366 [2019-11-23 23:23:47,632 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 367 DAG size of output: 363 [2019-11-23 23:23:50,643 WARN L192 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 372 DAG size of output: 370 [2019-11-23 23:23:51,011 WARN L192 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 371 DAG size of output: 365 [2019-11-23 23:23:51,232 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2019-11-23 23:23:51,377 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 367 DAG size of output: 367 [2019-11-23 23:23:54,229 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 371 [2019-11-23 23:23:54,401 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 372 DAG size of output: 369 [2019-11-23 23:23:54,568 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2019-11-23 23:23:54,765 WARN L192 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 371 DAG size of output: 368 [2019-11-23 23:23:54,931 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 369 [2019-11-23 23:23:55,072 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 370 DAG size of output: 370 [2019-11-23 23:23:57,920 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 381 DAG size of output: 379 [2019-11-23 23:23:58,092 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 373