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 0.1.24-13a467a-m [2019-10-15 02:58:16,317 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:58:16,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:58:16,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:58:16,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:58:16,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:58:16,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:58:16,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:58:16,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:58:16,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:58:16,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:58:16,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:58:16,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:58:16,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:58:16,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:58:16,369 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:58:16,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:58:16,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:58:16,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:58:16,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:58:16,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:58:16,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:58:16,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:58:16,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:58:16,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 02:58:16,386 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 02:58:16,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 02:58:16,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 02:58:16,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 02:58:16,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 02:58:16,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 02:58:16,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 02:58:16,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 02:58:16,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 02:58:16,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 02:58:16,392 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 02:58:16,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 02:58:16,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 02:58:16,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:58:16,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:58:16,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:58:16,396 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 [2019-10-15 02:58:16,411 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:58:16,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:58:16,412 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:58:16,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:58:16,413 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:58:16,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:58:16,413 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:58:16,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:58:16,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:58:16,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:58:16,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:58:16,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:58:16,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:58:16,415 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:58:16,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:58:16,415 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:58:16,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:58:16,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:58:16,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:58:16,416 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:58:16,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:58:16,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:58:16,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:58:16,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:58:16,417 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:58:16,417 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:58:16,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:58:16,417 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:58:16,418 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 [2019-10-15 02:58:16,727 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:58:16,740 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:58:16,744 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:58:16,746 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:58:16,746 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:58:16,747 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext2-properties/simple_search_value-2.i [2019-10-15 02:58:16,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea6f98ef9/19f554e70f0746189859d9da17d0dbcf/FLAG657f067e0 [2019-10-15 02:58:17,378 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:58:17,378 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext2-properties/simple_search_value-2.i [2019-10-15 02:58:17,392 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea6f98ef9/19f554e70f0746189859d9da17d0dbcf/FLAG657f067e0 [2019-10-15 02:58:17,702 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea6f98ef9/19f554e70f0746189859d9da17d0dbcf [2019-10-15 02:58:17,713 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:58:17,714 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:58:17,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:58:17,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:58:17,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:58:17,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:58:17" (1/1) ... [2019-10-15 02:58:17,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51cf590c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:17, skipping insertion in model container [2019-10-15 02:58:17,724 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:58:17" (1/1) ... [2019-10-15 02:58:17,731 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:58:17,785 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:58:18,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:58:18,303 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:58:18,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:58:18,443 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:58:18,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:18 WrapperNode [2019-10-15 02:58:18,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:58:18,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:58:18,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:58:18,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:58:18,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:18" (1/1) ... [2019-10-15 02:58:18,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:18" (1/1) ... [2019-10-15 02:58:18,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:18" (1/1) ... [2019-10-15 02:58:18,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:18" (1/1) ... [2019-10-15 02:58:18,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:18" (1/1) ... [2019-10-15 02:58:18,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:18" (1/1) ... [2019-10-15 02:58:18,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:18" (1/1) ... [2019-10-15 02:58:18,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:58:18,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:58:18,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:58:18,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:58:18,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:18" (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 [2019-10-15 02:58:18,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:58:18,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:58:18,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 02:58:18,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 02:58:18,584 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-15 02:58:18,584 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:58:18,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:58:18,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 02:58:18,586 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 02:58:18,587 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 02:58:18,587 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 02:58:18,588 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 02:58:18,588 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 02:58:18,588 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 02:58:18,588 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 02:58:18,589 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 02:58:18,589 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 02:58:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 02:58:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 02:58:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 02:58:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 02:58:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 02:58:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 02:58:18,591 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 02:58:18,591 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 02:58:18,591 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 02:58:18,592 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 02:58:18,592 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 02:58:18,592 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 02:58:18,592 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 02:58:18,593 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 02:58:18,593 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 02:58:18,593 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 02:58:18,593 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 02:58:18,593 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 02:58:18,594 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 02:58:18,594 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 02:58:18,594 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 02:58:18,595 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 02:58:18,596 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 02:58:18,596 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 02:58:18,596 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 02:58:18,596 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 02:58:18,597 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 02:58:18,597 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 02:58:18,597 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 02:58:18,597 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 02:58:18,599 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 02:58:18,599 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 02:58:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 02:58:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 02:58:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 02:58:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 02:58:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 02:58:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 02:58:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 02:58:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 02:58:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 02:58:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 02:58:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 02:58:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 02:58:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 02:58:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 02:58:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 02:58:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 02:58:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 02:58:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 02:58:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 02:58:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 02:58:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 02:58:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 02:58:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 02:58:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 02:58:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 02:58:18,607 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 02:58:18,607 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 02:58:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 02:58:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 02:58:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 02:58:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 02:58:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 02:58:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 02:58:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 02:58:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 02:58:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 02:58:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 02:58:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 02:58:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 02:58:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 02:58:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 02:58:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 02:58:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 02:58:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 02:58:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 02:58:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 02:58:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 02:58:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 02:58:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 02:58:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 02:58:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 02:58:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 02:58:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 02:58:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 02:58:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 02:58:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 02:58:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 02:58:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 02:58:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 02:58:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 02:58:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 02:58:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 02:58:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 02:58:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 02:58:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-15 02:58:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:58:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 02:58:18,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 02:58:18,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 02:58:18,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 02:58:18,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 02:58:18,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:58:18,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:58:18,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:58:18,992 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-15 02:58:19,289 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:58:19,289 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-15 02:58:19,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:58:19 BoogieIcfgContainer [2019-10-15 02:58:19,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:58:19,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:58:19,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:58:19,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:58:19,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:58:17" (1/3) ... [2019-10-15 02:58:19,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c58c5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:58:19, skipping insertion in model container [2019-10-15 02:58:19,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:18" (2/3) ... [2019-10-15 02:58:19,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c58c5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:58:19, skipping insertion in model container [2019-10-15 02:58:19,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:58:19" (3/3) ... [2019-10-15 02:58:19,300 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_search_value-2.i [2019-10-15 02:58:19,310 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:58:19,319 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:58:19,331 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:58:19,362 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:58:19,363 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:58:19,363 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:58:19,363 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:58:19,363 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:58:19,363 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:58:19,363 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:58:19,363 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:58:19,384 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-10-15 02:58:19,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-15 02:58:19,391 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:19,392 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:58:19,394 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:19,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:19,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1748319836, now seen corresponding path program 1 times [2019-10-15 02:58:19,410 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:19,410 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146061959] [2019-10-15 02:58:19,410 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:19,411 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:19,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:19,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:58:19,555 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146061959] [2019-10-15 02:58:19,556 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:58:19,557 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 02:58:19,557 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976347711] [2019-10-15 02:58:19,562 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 02:58:19,563 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:58:19,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 02:58:19,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 02:58:19,583 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2019-10-15 02:58:19,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:58:19,616 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2019-10-15 02:58:19,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 02:58:19,618 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-10-15 02:58:19,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:58:19,632 INFO L225 Difference]: With dead ends: 33 [2019-10-15 02:58:19,633 INFO L226 Difference]: Without dead ends: 16 [2019-10-15 02:58:19,640 INFO L600 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 [2019-10-15 02:58:19,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-10-15 02:58:19,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-10-15 02:58:19,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-10-15 02:58:19,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2019-10-15 02:58:19,706 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 12 [2019-10-15 02:58:19,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:58:19,707 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2019-10-15 02:58:19,708 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 02:58:19,708 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2019-10-15 02:58:19,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-15 02:58:19,711 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:19,711 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:58:19,711 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:19,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:19,714 INFO L82 PathProgramCache]: Analyzing trace with hash -926616102, now seen corresponding path program 1 times [2019-10-15 02:58:19,714 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:19,714 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9283042] [2019-10-15 02:58:19,715 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:19,715 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:19,715 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:19,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:58:19,891 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9283042] [2019-10-15 02:58:19,891 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:58:19,891 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 02:58:19,892 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171190292] [2019-10-15 02:58:19,893 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 02:58:19,894 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:58:19,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 02:58:19,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 02:58:19,895 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 4 states. [2019-10-15 02:58:19,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:58:19,998 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2019-10-15 02:58:20,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 02:58:20,000 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-10-15 02:58:20,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:58:20,001 INFO L225 Difference]: With dead ends: 25 [2019-10-15 02:58:20,001 INFO L226 Difference]: Without dead ends: 22 [2019-10-15 02:58:20,003 INFO L600 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 [2019-10-15 02:58:20,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-10-15 02:58:20,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 17. [2019-10-15 02:58:20,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-10-15 02:58:20,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-10-15 02:58:20,011 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2019-10-15 02:58:20,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:58:20,012 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-10-15 02:58:20,013 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 02:58:20,013 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-10-15 02:58:20,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-15 02:58:20,015 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:20,015 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:58:20,015 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:20,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:20,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1339791088, now seen corresponding path program 1 times [2019-10-15 02:58:20,016 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:20,016 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555252841] [2019-10-15 02:58:20,017 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:20,017 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:20,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:20,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 02:58:20,129 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555252841] [2019-10-15 02:58:20,130 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:58:20,130 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 02:58:20,130 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413582664] [2019-10-15 02:58:20,134 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 02:58:20,134 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:58:20,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 02:58:20,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 02:58:20,135 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2019-10-15 02:58:20,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:58:20,172 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2019-10-15 02:58:20,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 02:58:20,173 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-10-15 02:58:20,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:58:20,174 INFO L225 Difference]: With dead ends: 27 [2019-10-15 02:58:20,174 INFO L226 Difference]: Without dead ends: 21 [2019-10-15 02:58:20,174 INFO L600 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 [2019-10-15 02:58:20,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-10-15 02:58:20,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2019-10-15 02:58:20,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-15 02:58:20,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2019-10-15 02:58:20,179 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2019-10-15 02:58:20,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:58:20,180 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2019-10-15 02:58:20,180 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 02:58:20,180 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2019-10-15 02:58:20,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-15 02:58:20,181 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:20,181 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:58:20,181 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:20,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:20,182 INFO L82 PathProgramCache]: Analyzing trace with hash -124297803, now seen corresponding path program 1 times [2019-10-15 02:58:20,182 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:20,182 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102403365] [2019-10-15 02:58:20,182 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:20,183 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:20,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:20,253 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 02:58:20,254 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102403365] [2019-10-15 02:58:20,254 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578352915] [2019-10-15 02:58:20,254 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 [2019-10-15 02:58:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:20,383 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-15 02:58:20,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:58:20,437 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:58:20,454 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 02:58:20,455 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:58:20,469 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:58:20,470 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:58:20,471 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:58:20,513 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 02:58:20,513 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [803372992] [2019-10-15 02:58:20,536 INFO L162 IcfgInterpreter]: Started Sifa with 16 locations of interest [2019-10-15 02:58:20,536 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 02:58:20,543 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 02:58:20,553 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 02:58:20,554 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 02:58:20,696 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-15 02:58:21,125 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:21,606 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-15 02:58:21,611 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 02:58:22,103 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 02:58:22,104 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 10] total 17 [2019-10-15 02:58:22,104 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217035831] [2019-10-15 02:58:22,105 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-15 02:58:22,105 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:58:22,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-15 02:58:22,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2019-10-15 02:58:22,107 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 17 states. [2019-10-15 02:58:23,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:58:23,137 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2019-10-15 02:58:23,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-15 02:58:23,137 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 18 [2019-10-15 02:58:23,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:58:23,138 INFO L225 Difference]: With dead ends: 39 [2019-10-15 02:58:23,138 INFO L226 Difference]: Without dead ends: 33 [2019-10-15 02:58:23,140 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=194, Invalid=928, Unknown=0, NotChecked=0, Total=1122 [2019-10-15 02:58:23,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-10-15 02:58:23,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2019-10-15 02:58:23,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-15 02:58:23,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2019-10-15 02:58:23,146 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 18 [2019-10-15 02:58:23,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:58:23,146 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2019-10-15 02:58:23,146 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-15 02:58:23,147 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2019-10-15 02:58:23,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-15 02:58:23,147 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:23,148 INFO L380 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:58:23,353 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:58:23,353 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:23,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:23,354 INFO L82 PathProgramCache]: Analyzing trace with hash -886164732, now seen corresponding path program 2 times [2019-10-15 02:58:23,355 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:23,355 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706258052] [2019-10-15 02:58:23,356 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:23,356 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:23,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:23,499 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 02:58:23,500 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706258052] [2019-10-15 02:58:23,500 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533534701] [2019-10-15 02:58:23,500 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 [2019-10-15 02:58:23,688 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-10-15 02:58:23,689 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 02:58:23,690 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 02:58:23,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:58:23,706 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 02:58:23,707 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:58:23,787 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 02:58:23,787 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1885866402] [2019-10-15 02:58:23,789 INFO L162 IcfgInterpreter]: Started Sifa with 16 locations of interest [2019-10-15 02:58:23,789 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 02:58:23,790 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 02:58:23,790 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 02:58:23,790 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 02:58:23,818 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-15 02:58:24,088 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:24,489 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-15 02:58:24,494 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 02:58:24,680 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 16 [2019-10-15 02:58:25,238 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 02:58:25,239 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 10] total 23 [2019-10-15 02:58:25,239 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282777537] [2019-10-15 02:58:25,240 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-15 02:58:25,241 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:58:25,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-15 02:58:25,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2019-10-15 02:58:25,241 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 23 states. [2019-10-15 02:58:27,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:58:27,244 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2019-10-15 02:58:27,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2019-10-15 02:58:27,245 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 30 [2019-10-15 02:58:27,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:58:27,247 INFO L225 Difference]: With dead ends: 63 [2019-10-15 02:58:27,247 INFO L226 Difference]: Without dead ends: 57 [2019-10-15 02:58:27,250 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 72 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1012 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=665, Invalid=2641, Unknown=0, NotChecked=0, Total=3306 [2019-10-15 02:58:27,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-10-15 02:58:27,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2019-10-15 02:58:27,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-10-15 02:58:27,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2019-10-15 02:58:27,258 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 30 [2019-10-15 02:58:27,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:58:27,259 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2019-10-15 02:58:27,259 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-15 02:58:27,259 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2019-10-15 02:58:27,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-15 02:58:27,260 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:27,261 INFO L380 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:58:27,465 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:58:27,466 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:27,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:27,466 INFO L82 PathProgramCache]: Analyzing trace with hash -148102622, now seen corresponding path program 3 times [2019-10-15 02:58:27,466 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:27,467 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116188508] [2019-10-15 02:58:27,467 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:27,467 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:27,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:28,248 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 0 proven. 73 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2019-10-15 02:58:28,249 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116188508] [2019-10-15 02:58:28,249 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291491327] [2019-10-15 02:58:28,249 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 [2019-10-15 02:58:29,041 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-15 02:58:29,041 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 02:58:29,046 INFO L256 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 114 conjunts are in the unsatisfiable core [2019-10-15 02:58:29,052 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:58:30,196 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2019-10-15 02:58:30,504 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-10-15 02:58:30,649 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2019-10-15 02:58:30,797 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2019-10-15 02:58:31,031 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2019-10-15 02:58:31,288 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 62 [2019-10-15 02:58:31,556 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2019-10-15 02:58:31,938 WARN L191 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-10-15 02:58:32,278 WARN L191 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2019-10-15 02:58:32,486 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2019-10-15 02:58:32,769 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-10-15 02:58:33,290 WARN L191 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 77 [2019-10-15 02:58:33,557 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-10-15 02:58:33,934 WARN L191 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 97 [2019-10-15 02:58:34,374 WARN L191 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 120 [2019-10-15 02:58:34,740 WARN L191 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 97 [2019-10-15 02:58:35,203 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2019-10-15 02:58:36,362 WARN L191 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 96 [2019-10-15 02:58:36,654 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-10-15 02:58:37,233 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 117 [2019-10-15 02:58:37,868 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 161 [2019-10-15 02:58:38,486 WARN L191 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 115 [2019-10-15 02:58:39,053 WARN L191 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-15 02:58:40,175 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 188 DAG size of output: 115 [2019-10-15 02:58:40,562 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2019-10-15 02:58:41,437 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 139 [2019-10-15 02:58:42,375 WARN L191 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 208 [2019-10-15 02:58:43,251 WARN L191 SmtUtils]: Spent 830.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 133 [2019-10-15 02:58:44,046 WARN L191 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2019-10-15 02:58:46,914 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 237 DAG size of output: 138 [2019-10-15 02:58:47,369 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-15 02:58:48,605 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 181 DAG size of output: 163 [2019-10-15 02:58:49,916 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 295 DAG size of output: 261 [2019-10-15 02:58:51,264 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 248 DAG size of output: 157 [2019-10-15 02:58:52,308 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 295 [2019-10-15 02:58:55,352 WARN L191 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 283 DAG size of output: 162 [2019-10-15 02:58:56,202 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 165