/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/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/list-ext2-properties/simple_search_value-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 03:54:03,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 03:54:03,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 03:54:03,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 03:54:03,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 03:54:03,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 03:54:03,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 03:54:03,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 03:54:03,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 03:54:03,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 03:54:03,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 03:54:03,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 03:54:03,187 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 03:54:03,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 03:54:03,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 03:54:03,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 03:54:03,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 03:54:03,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 03:54:03,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 03:54:03,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 03:54:03,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 03:54:03,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 03:54:03,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 03:54:03,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 03:54:03,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 03:54:03,217 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 03:54:03,217 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 03:54:03,219 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 03:54:03,219 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 03:54:03,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 03:54:03,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 03:54:03,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 03:54:03,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 03:54:03,224 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 03:54:03,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 03:54:03,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 03:54:03,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 03:54:03,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 03:54:03,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 03:54:03,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 03:54:03,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 03:54:03,229 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 03:54:03,261 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 03:54:03,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 03:54:03,266 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 03:54:03,266 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 03:54:03,267 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 03:54:03,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 03:54:03,269 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 03:54:03,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 03:54:03,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 03:54:03,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 03:54:03,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 03:54:03,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 03:54:03,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 03:54:03,271 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 03:54:03,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 03:54:03,271 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 03:54:03,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 03:54:03,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 03:54:03,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 03:54:03,273 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 03:54:03,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 03:54:03,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 03:54:03,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 03:54:03,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 03:54:03,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 03:54:03,274 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 03:54:03,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 03:54:03,274 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 03:54:03,275 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 03:54:03,564 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 03:54:03,578 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 03:54:03,582 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 03:54:03,583 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 03:54:03,584 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 03:54:03,585 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext2-properties/simple_search_value-2.i [2019-11-07 03:54:03,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0867cdef/477797450f064c23ba3f435ef767154a/FLAG214db0a43 [2019-11-07 03:54:04,154 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 03:54:04,155 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext2-properties/simple_search_value-2.i [2019-11-07 03:54:04,174 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0867cdef/477797450f064c23ba3f435ef767154a/FLAG214db0a43 [2019-11-07 03:54:04,501 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0867cdef/477797450f064c23ba3f435ef767154a [2019-11-07 03:54:04,526 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 03:54:04,528 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 03:54:04,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 03:54:04,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 03:54:04,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 03:54:04,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:54:04" (1/1) ... [2019-11-07 03:54:04,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@238a7b6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:04, skipping insertion in model container [2019-11-07 03:54:04,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:54:04" (1/1) ... [2019-11-07 03:54:04,577 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 03:54:04,676 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 03:54:05,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:54:05,215 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 03:54:05,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:54:05,323 INFO L192 MainTranslator]: Completed translation [2019-11-07 03:54:05,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:05 WrapperNode [2019-11-07 03:54:05,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 03:54:05,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 03:54:05,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 03:54:05,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 03:54:05,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:05" (1/1) ... [2019-11-07 03:54:05,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:05" (1/1) ... [2019-11-07 03:54:05,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:05" (1/1) ... [2019-11-07 03:54:05,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:05" (1/1) ... [2019-11-07 03:54:05,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:05" (1/1) ... [2019-11-07 03:54:05,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:05" (1/1) ... [2019-11-07 03:54:05,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:05" (1/1) ... [2019-11-07 03:54:05,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 03:54:05,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 03:54:05,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 03:54:05,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 03:54:05,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:05" (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 [2019-11-07 03:54:05,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 03:54:05,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 03:54:05,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-07 03:54:05,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-07 03:54:05,452 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-07 03:54:05,453 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 03:54:05,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 03:54:05,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 03:54:05,455 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-07 03:54:05,455 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-07 03:54:05,456 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-07 03:54:05,456 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-07 03:54:05,456 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-07 03:54:05,457 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-07 03:54:05,457 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-07 03:54:05,457 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-07 03:54:05,459 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-07 03:54:05,459 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-07 03:54:05,460 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-07 03:54:05,460 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-07 03:54:05,460 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-07 03:54:05,461 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-07 03:54:05,461 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-07 03:54:05,462 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-07 03:54:05,462 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-07 03:54:05,463 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-07 03:54:05,464 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-07 03:54:05,464 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-07 03:54:05,464 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-07 03:54:05,464 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-07 03:54:05,464 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-07 03:54:05,465 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-07 03:54:05,465 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-07 03:54:05,465 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-07 03:54:05,465 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-07 03:54:05,465 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-07 03:54:05,465 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-07 03:54:05,466 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-07 03:54:05,466 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-07 03:54:05,466 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-07 03:54:05,466 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-07 03:54:05,466 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-07 03:54:05,467 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-07 03:54:05,467 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-07 03:54:05,467 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-07 03:54:05,467 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-07 03:54:05,467 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-07 03:54:05,467 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-07 03:54:05,467 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-07 03:54:05,469 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-07 03:54:05,469 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-07 03:54:05,469 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-07 03:54:05,469 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-07 03:54:05,469 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-07 03:54:05,469 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-07 03:54:05,470 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-07 03:54:05,470 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-07 03:54:05,470 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-07 03:54:05,470 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-07 03:54:05,471 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-07 03:54:05,471 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 03:54:05,471 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 03:54:05,471 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-07 03:54:05,471 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 03:54:05,472 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-07 03:54:05,472 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-07 03:54:05,472 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-07 03:54:05,472 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-07 03:54:05,473 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-07 03:54:05,473 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-07 03:54:05,473 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-07 03:54:05,473 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-07 03:54:05,473 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-07 03:54:05,473 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 03:54:05,474 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-07 03:54:05,474 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-07 03:54:05,474 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-07 03:54:05,474 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-07 03:54:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-07 03:54:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-07 03:54:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-07 03:54:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-07 03:54:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-07 03:54:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-07 03:54:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-07 03:54:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-07 03:54:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-07 03:54:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-07 03:54:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-07 03:54:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-07 03:54:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-07 03:54:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-07 03:54:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-07 03:54:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-07 03:54:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-07 03:54:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-07 03:54:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-07 03:54:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-07 03:54:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-07 03:54:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-07 03:54:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-07 03:54:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-07 03:54:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-07 03:54:05,477 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-07 03:54:05,478 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-07 03:54:05,478 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-07 03:54:05,478 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-07 03:54:05,478 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-07 03:54:05,478 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-07 03:54:05,478 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-07 03:54:05,478 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-07 03:54:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-07 03:54:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-07 03:54:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-07 03:54:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 03:54:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 03:54:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 03:54:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 03:54:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 03:54:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 03:54:05,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 03:54:05,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 03:54:05,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 03:54:05,825 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-07 03:54:06,156 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 03:54:06,157 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-11-07 03:54:06,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:54:06 BoogieIcfgContainer [2019-11-07 03:54:06,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 03:54:06,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 03:54:06,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 03:54:06,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 03:54:06,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:54:04" (1/3) ... [2019-11-07 03:54:06,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275835c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:54:06, skipping insertion in model container [2019-11-07 03:54:06,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:54:05" (2/3) ... [2019-11-07 03:54:06,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275835c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:54:06, skipping insertion in model container [2019-11-07 03:54:06,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:54:06" (3/3) ... [2019-11-07 03:54:06,167 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_search_value-2.i [2019-11-07 03:54:06,177 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 03:54:06,186 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 03:54:06,198 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 03:54:06,220 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 03:54:06,220 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 03:54:06,220 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 03:54:06,221 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 03:54:06,221 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 03:54:06,221 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 03:54:06,221 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 03:54:06,221 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 03:54:06,235 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-11-07 03:54:06,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-07 03:54:06,240 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:54:06,241 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:54:06,243 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:54:06,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:54:06,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1748319836, now seen corresponding path program 1 times [2019-11-07 03:54:06,257 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:54:06,257 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940712469] [2019-11-07 03:54:06,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:54:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:54:06,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 03:54:06,404 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940712469] [2019-11-07 03:54:06,405 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:54:06,405 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 03:54:06,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211130053] [2019-11-07 03:54:06,411 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 03:54:06,411 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:54:06,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 03:54:06,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 03:54:06,430 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2019-11-07 03:54:06,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:54:06,456 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2019-11-07 03:54:06,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 03:54:06,459 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-07 03:54:06,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:54:06,469 INFO L225 Difference]: With dead ends: 33 [2019-11-07 03:54:06,469 INFO L226 Difference]: Without dead ends: 16 [2019-11-07 03:54:06,473 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 03:54:06,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-07 03:54:06,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-07 03:54:06,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-07 03:54:06,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2019-11-07 03:54:06,522 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 12 [2019-11-07 03:54:06,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:54:06,523 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2019-11-07 03:54:06,523 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 03:54:06,523 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2019-11-07 03:54:06,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-07 03:54:06,524 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:54:06,524 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:54:06,525 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:54:06,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:54:06,525 INFO L82 PathProgramCache]: Analyzing trace with hash -926616102, now seen corresponding path program 1 times [2019-11-07 03:54:06,526 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:54:06,526 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783960030] [2019-11-07 03:54:06,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:54:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:54:06,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 03:54:06,676 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783960030] [2019-11-07 03:54:06,678 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:54:06,678 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 03:54:06,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599328535] [2019-11-07 03:54:06,680 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 03:54:06,681 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:54:06,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 03:54:06,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 03:54:06,682 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 4 states. [2019-11-07 03:54:06,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:54:06,756 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2019-11-07 03:54:06,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 03:54:06,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-07 03:54:06,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:54:06,759 INFO L225 Difference]: With dead ends: 25 [2019-11-07 03:54:06,760 INFO L226 Difference]: Without dead ends: 22 [2019-11-07 03:54:06,761 INFO L630 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 [2019-11-07 03:54:06,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-07 03:54:06,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 17. [2019-11-07 03:54:06,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-07 03:54:06,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-11-07 03:54:06,769 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2019-11-07 03:54:06,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:54:06,770 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-11-07 03:54:06,770 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 03:54:06,772 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-11-07 03:54:06,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-07 03:54:06,774 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:54:06,774 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:54:06,774 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:54:06,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:54:06,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1339791088, now seen corresponding path program 1 times [2019-11-07 03:54:06,775 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:54:06,775 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395349731] [2019-11-07 03:54:06,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:54:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:54:06,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 03:54:06,903 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395349731] [2019-11-07 03:54:06,903 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:54:06,903 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 03:54:06,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067794398] [2019-11-07 03:54:06,907 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 03:54:06,907 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:54:06,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 03:54:06,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 03:54:06,908 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2019-11-07 03:54:06,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:54:06,945 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2019-11-07 03:54:06,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 03:54:06,945 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-11-07 03:54:06,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:54:06,946 INFO L225 Difference]: With dead ends: 27 [2019-11-07 03:54:06,946 INFO L226 Difference]: Without dead ends: 21 [2019-11-07 03:54:06,947 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-07 03:54:06,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-07 03:54:06,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2019-11-07 03:54:06,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-07 03:54:06,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2019-11-07 03:54:06,952 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2019-11-07 03:54:06,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:54:06,953 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2019-11-07 03:54:06,953 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 03:54:06,953 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2019-11-07 03:54:06,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-07 03:54:06,954 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:54:06,954 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:54:06,954 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:54:06,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:54:06,955 INFO L82 PathProgramCache]: Analyzing trace with hash -124297803, now seen corresponding path program 1 times [2019-11-07 03:54:06,955 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:54:06,955 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858216928] [2019-11-07 03:54:06,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:54:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:54:07,056 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 03:54:07,056 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858216928] [2019-11-07 03:54:07,057 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427151488] [2019-11-07 03:54:07,057 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 [2019-11-07 03:54:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:54:07,191 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-07 03:54:07,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 03:54:07,231 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:54:07,243 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 03:54:07,243 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 03:54:07,248 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:54:07,249 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:54:07,250 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:54:07,278 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 03:54:07,278 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1853479091] [2019-11-07 03:54:07,305 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2019-11-07 03:54:07,305 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 03:54:07,312 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 03:54:07,319 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 03:54:07,320 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 03:54:07,456 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-11-07 03:54:07,923 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 03:54:08,389 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-11-07 03:54:08,392 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-07 03:54:08,814 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-11-07 03:54:08,814 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 11] total 18 [2019-11-07 03:54:08,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605367567] [2019-11-07 03:54:08,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-07 03:54:08,816 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:54:08,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-07 03:54:08,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2019-11-07 03:54:08,820 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 18 states. [2019-11-07 03:54:09,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:54:09,939 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2019-11-07 03:54:09,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-11-07 03:54:09,942 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 18 [2019-11-07 03:54:09,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:54:09,943 INFO L225 Difference]: With dead ends: 39 [2019-11-07 03:54:09,943 INFO L226 Difference]: Without dead ends: 33 [2019-11-07 03:54:09,944 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=208, Invalid=1052, Unknown=0, NotChecked=0, Total=1260 [2019-11-07 03:54:09,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-07 03:54:09,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2019-11-07 03:54:09,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-07 03:54:09,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2019-11-07 03:54:09,950 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 18 [2019-11-07 03:54:09,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:54:09,951 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2019-11-07 03:54:09,951 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-07 03:54:09,951 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2019-11-07 03:54:09,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-07 03:54:09,952 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:54:09,953 INFO L410 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:54:10,156 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:54:10,156 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:54:10,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:54:10,157 INFO L82 PathProgramCache]: Analyzing trace with hash -886164732, now seen corresponding path program 2 times [2019-11-07 03:54:10,158 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:54:10,158 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643962898] [2019-11-07 03:54:10,159 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:54:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:54:10,271 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 03:54:10,271 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643962898] [2019-11-07 03:54:10,272 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807619463] [2019-11-07 03:54:10,272 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 [2019-11-07 03:54:10,472 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-11-07 03:54:10,473 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-07 03:54:10,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-07 03:54:10,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 03:54:10,499 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 03:54:10,499 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 03:54:10,559 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 03:54:10,559 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1969243103] [2019-11-07 03:54:10,562 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2019-11-07 03:54:10,562 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 03:54:10,563 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 03:54:10,563 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 03:54:10,563 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 03:54:10,590 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-11-07 03:54:10,793 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-11-07 03:54:11,059 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-11-07 03:54:11,061 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-07 03:54:11,493 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-11-07 03:54:11,493 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 11] total 24 [2019-11-07 03:54:11,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215223601] [2019-11-07 03:54:11,494 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-11-07 03:54:11,495 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:54:11,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-11-07 03:54:11,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2019-11-07 03:54:11,496 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 24 states. [2019-11-07 03:54:13,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:54:13,770 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2019-11-07 03:54:13,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-11-07 03:54:13,771 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 30 [2019-11-07 03:54:13,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:54:13,772 INFO L225 Difference]: With dead ends: 63 [2019-11-07 03:54:13,772 INFO L226 Difference]: Without dead ends: 57 [2019-11-07 03:54:13,774 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 71 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1071 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=691, Invalid=2849, Unknown=0, NotChecked=0, Total=3540 [2019-11-07 03:54:13,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-11-07 03:54:13,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2019-11-07 03:54:13,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-11-07 03:54:13,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2019-11-07 03:54:13,782 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 30 [2019-11-07 03:54:13,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:54:13,782 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2019-11-07 03:54:13,783 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-11-07 03:54:13,783 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2019-11-07 03:54:13,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-11-07 03:54:13,784 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:54:13,784 INFO L410 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:54:13,988 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:54:13,989 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:54:13,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:54:13,991 INFO L82 PathProgramCache]: Analyzing trace with hash -148102622, now seen corresponding path program 3 times [2019-11-07 03:54:13,991 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:54:13,995 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388593296] [2019-11-07 03:54:13,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:54:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:54:14,710 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2019-11-07 03:54:14,710 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388593296] [2019-11-07 03:54:14,710 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103722964] [2019-11-07 03:54:14,710 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 [2019-11-07 03:54:15,479 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-07 03:54:15,479 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-07 03:54:15,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 114 conjunts are in the unsatisfiable core [2019-11-07 03:54:15,488 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 03:54:16,807 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-11-07 03:54:16,959 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2019-11-07 03:54:17,154 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2019-11-07 03:54:17,466 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2019-11-07 03:54:17,751 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 62 [2019-11-07 03:54:18,174 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-11-07 03:54:18,419 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2019-11-07 03:54:18,649 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2019-11-07 03:54:18,953 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-11-07 03:54:19,483 WARN L191 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 77 [2019-11-07 03:54:19,736 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-11-07 03:54:20,141 WARN L191 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 97 [2019-11-07 03:54:20,626 WARN L191 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 120 [2019-11-07 03:54:20,972 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 97 [2019-11-07 03:54:21,452 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2019-11-07 03:54:22,595 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 96 [2019-11-07 03:54:22,927 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-11-07 03:54:23,539 WARN L191 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 117 [2019-11-07 03:54:24,182 WARN L191 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 161 [2019-11-07 03:54:24,746 WARN L191 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 115 [2019-11-07 03:54:25,406 WARN L191 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-11-07 03:54:26,577 WARN L191 SmtUtils]: Spent 997.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 115 [2019-11-07 03:54:26,927 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2019-11-07 03:54:27,809 WARN L191 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 139 [2019-11-07 03:54:28,821 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 238 DAG size of output: 208 [2019-11-07 03:54:29,705 WARN L191 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 133 [2019-11-07 03:54:30,499 WARN L191 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2019-11-07 03:54:33,534 WARN L191 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 237 DAG size of output: 138 [2019-11-07 03:54:34,014 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-11-07 03:54:35,261 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 181 DAG size of output: 163 [2019-11-07 03:54:36,713 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 295 DAG size of output: 261 [2019-11-07 03:54:37,959 WARN L191 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 248 DAG size of output: 157 [2019-11-07 03:54:38,976 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 295 [2019-11-07 03:54:42,060 WARN L191 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 283 DAG size of output: 162 [2019-11-07 03:54:42,921 WARN L191 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2019-11-07 03:54:44,820 WARN L191 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 358 DAG size of output: 320 [2019-11-07 03:54:46,325 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 271 DAG size of output: 159