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-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 02:58:16,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:58:16,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:58:16,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:58:16,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:58:16,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:58:16,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:58:16,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:58:16,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:58:16,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:58:16,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:58:16,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:58:16,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:58:16,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:58:16,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:58:16,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:58:16,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:58:16,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:58:16,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:58:16,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:58:16,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:58:16,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:58:16,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:58:16,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:58:16,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 02:58:16,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 02:58:16,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 02:58:16,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 02:58:16,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 02:58:16,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 02:58:16,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 02:58:16,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 02:58:16,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 02:58:16,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 02:58:16,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 02:58:16,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 02:58:16,498 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 02:58:16,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 02:58:16,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:58:16,499 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:58:16,500 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:58:16,501 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 02:58:16,526 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:58:16,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:58:16,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:58:16,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:58:16,528 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:58:16,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:58:16,528 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:58:16,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:58:16,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:58:16,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:58:16,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:58:16,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:58:16,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:58:16,530 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:58:16,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:58:16,530 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:58:16,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:58:16,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:58:16,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:58:16,531 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:58:16,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:58:16,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:58:16,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:58:16,532 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:58:16,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:58:16,532 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:58:16,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:58:16,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:58:16,533 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 02:58:16,804 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:58:16,817 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:58:16,820 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:58:16,822 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:58:16,822 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:58:16,823 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext2-properties/simple_search_value-1.i [2019-10-15 02:58:16,885 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2d2630a1/a4c227da45a34e80aeca15f049de8399/FLAGe1896c5a6 [2019-10-15 02:58:17,431 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:58:17,432 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext2-properties/simple_search_value-1.i [2019-10-15 02:58:17,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2d2630a1/a4c227da45a34e80aeca15f049de8399/FLAGe1896c5a6 [2019-10-15 02:58:17,729 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2d2630a1/a4c227da45a34e80aeca15f049de8399 [2019-10-15 02:58:17,739 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:58:17,741 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:58:17,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:58:17,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:58:17,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:58:17,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:58:17" (1/1) ... [2019-10-15 02:58:17,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@774ac415 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 02:58:17,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:58:17" (1/1) ... [2019-10-15 02:58:17,757 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:58:17,816 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:58:18,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:58:18,240 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:58:18,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:58:18,352 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:58:18,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:18 WrapperNode [2019-10-15 02:58:18,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:58:18,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:58:18,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:58:18,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:58:18,369 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 02:58:18,369 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 02:58:18,386 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 02:58:18,387 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 02:58:18,408 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 02:58:18,415 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 02:58:18,418 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 02:58:18,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:58:18,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:58:18,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:58:18,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:58:18,427 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 02:58:18,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:58:18,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:58:18,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 02:58:18,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 02:58:18,497 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-15 02:58:18,497 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:58:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:58:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 02:58:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 02:58:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 02:58:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 02:58:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 02:58:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 02:58:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 02:58:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 02:58:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 02:58:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 02:58:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 02:58:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 02:58:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 02:58:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 02:58:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 02:58:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 02:58:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 02:58:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 02:58:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 02:58:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 02:58:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 02:58:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 02:58:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 02:58:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 02:58:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 02:58:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 02:58:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 02:58:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 02:58:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 02:58:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 02:58:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 02:58:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 02:58:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 02:58:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 02:58:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 02:58:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 02:58:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 02:58:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 02:58:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 02:58:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 02:58:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 02:58:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 02:58:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 02:58:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 02:58:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 02:58:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 02:58:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 02:58:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 02:58:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 02:58:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 02:58:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 02:58:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 02:58:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 02:58:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 02:58:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 02:58:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 02:58:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 02:58:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 02:58:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 02:58:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 02:58:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 02:58:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 02:58:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 02:58:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 02:58:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 02:58:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 02:58:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 02:58:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 02:58:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 02:58:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 02:58:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 02:58:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 02:58:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 02:58:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 02:58:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 02:58:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 02:58:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 02:58:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 02:58:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 02:58:18,511 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 02:58:18,511 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 02:58:18,511 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 02:58:18,511 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 02:58:18,511 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 02:58:18,511 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 02:58:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 02:58:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 02:58:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 02:58:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 02:58:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 02:58:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 02:58:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 02:58:18,513 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 02:58:18,513 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 02:58:18,513 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 02:58:18,513 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 02:58:18,513 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 02:58:18,513 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 02:58:18,513 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 02:58:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 02:58:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 02:58:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 02:58:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 02:58:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 02:58:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 02:58:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 02:58:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-15 02:58:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:58:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 02:58:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 02:58:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 02:58:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 02:58:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 02:58:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:58:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:58:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:58:18,890 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-15 02:58:19,115 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:58:19,116 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-15 02:58:19,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:58:19 BoogieIcfgContainer [2019-10-15 02:58:19,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:58:19,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:58:19,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:58:19,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:58:19,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:58:17" (1/3) ... [2019-10-15 02:58:19,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8c35fe 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 02:58:19,123 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 02:58:19,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8c35fe 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 02:58:19,124 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 02:58:19,125 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_search_value-1.i [2019-10-15 02:58:19,135 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:58:19,142 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:58:19,152 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:58:19,174 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:58:19,174 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:58:19,174 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:58:19,174 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:58:19,175 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:58:19,175 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:58:19,175 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:58:19,175 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:58:19,194 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-10-15 02:58:19,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-15 02:58:19,200 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:19,202 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:58:19,203 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:19,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:19,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1748319836, now seen corresponding path program 1 times [2019-10-15 02:58:19,219 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:19,219 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404714727] [2019-10-15 02:58:19,220 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:19,220 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:19,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:19,399 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 02:58:19,400 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404714727] [2019-10-15 02:58:19,401 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:58:19,401 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 02:58:19,402 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778126770] [2019-10-15 02:58:19,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 02:58:19,410 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:58:19,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 02:58:19,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 02:58:19,434 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2019-10-15 02:58:19,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:58:19,470 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2019-10-15 02:58:19,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 02:58:19,473 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-10-15 02:58:19,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:58:19,487 INFO L225 Difference]: With dead ends: 33 [2019-10-15 02:58:19,487 INFO L226 Difference]: Without dead ends: 16 [2019-10-15 02:58:19,494 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 02:58:19,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-10-15 02:58:19,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-10-15 02:58:19,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-10-15 02:58:19,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2019-10-15 02:58:19,557 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 12 [2019-10-15 02:58:19,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:58:19,558 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2019-10-15 02:58:19,558 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 02:58:19,558 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2019-10-15 02:58:19,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-15 02:58:19,561 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:19,561 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:58:19,562 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:19,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:19,564 INFO L82 PathProgramCache]: Analyzing trace with hash -926616102, now seen corresponding path program 1 times [2019-10-15 02:58:19,565 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:19,565 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052859227] [2019-10-15 02:58:19,566 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:19,566 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:19,566 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:19,744 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 02:58:19,747 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052859227] [2019-10-15 02:58:19,747 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:58:19,748 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 02:58:19,748 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377497720] [2019-10-15 02:58:19,749 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 02:58:19,750 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:58:19,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 02:58:19,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 02:58:19,751 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 4 states. [2019-10-15 02:58:19,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:58:19,829 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2019-10-15 02:58:19,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 02:58:19,832 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-10-15 02:58:19,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:58:19,833 INFO L225 Difference]: With dead ends: 25 [2019-10-15 02:58:19,833 INFO L226 Difference]: Without dead ends: 22 [2019-10-15 02:58:19,834 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 02:58:19,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-10-15 02:58:19,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 17. [2019-10-15 02:58:19,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-10-15 02:58:19,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-10-15 02:58:19,841 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2019-10-15 02:58:19,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:58:19,842 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-10-15 02:58:19,842 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 02:58:19,842 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-10-15 02:58:19,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-15 02:58:19,843 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:19,843 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:58:19,843 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:19,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:19,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1339791088, now seen corresponding path program 1 times [2019-10-15 02:58:19,844 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:19,844 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965665519] [2019-10-15 02:58:19,844 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:19,845 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:19,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:19,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:19,925 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 02:58:19,926 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965665519] [2019-10-15 02:58:19,926 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:58:19,926 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 02:58:19,927 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319948506] [2019-10-15 02:58:19,931 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 02:58:19,931 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:58:19,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 02:58:19,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 02:58:19,932 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2019-10-15 02:58:19,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:58:19,975 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2019-10-15 02:58:19,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 02:58:19,976 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-10-15 02:58:19,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:58:19,977 INFO L225 Difference]: With dead ends: 27 [2019-10-15 02:58:19,977 INFO L226 Difference]: Without dead ends: 21 [2019-10-15 02:58:19,978 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 02:58:19,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-10-15 02:58:19,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2019-10-15 02:58:19,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-15 02:58:19,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2019-10-15 02:58:19,987 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 14 [2019-10-15 02:58:19,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:58:19,989 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2019-10-15 02:58:19,989 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 02:58:19,989 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2019-10-15 02:58:19,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-15 02:58:19,990 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:19,990 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 02:58:19,990 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:19,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:19,991 INFO L82 PathProgramCache]: Analyzing trace with hash -124297803, now seen corresponding path program 1 times [2019-10-15 02:58:19,995 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:19,995 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082955190] [2019-10-15 02:58:19,995 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:19,996 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:19,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:20,097 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 02:58:20,098 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082955190] [2019-10-15 02:58:20,098 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006917439] [2019-10-15 02:58:20,098 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 02:58:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:20,255 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-15 02:58:20,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:58:20,312 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:58:20,329 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 02:58:20,330 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:58:20,344 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:58:20,345 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:58:20,346 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:58:20,384 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 02:58:20,384 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [872193498] [2019-10-15 02:58:20,440 INFO L162 IcfgInterpreter]: Started Sifa with 16 locations of interest [2019-10-15 02:58:20,440 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 02:58:20,449 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 02:58:20,457 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 02:58:20,457 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 02:58:20,612 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-15 02:58:21,130 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:21,552 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-15 02:58:21,562 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 02:58:22,101 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 02:58:22,101 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 10] total 17 [2019-10-15 02:58:22,102 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577530041] [2019-10-15 02:58:22,103 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 02:58:22,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-15 02:58:22,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2019-10-15 02:58:22,106 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 17 states. [2019-10-15 02:58:23,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:58:23,106 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2019-10-15 02:58:23,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-15 02:58:23,107 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 18 [2019-10-15 02:58:23,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:58:23,108 INFO L225 Difference]: With dead ends: 39 [2019-10-15 02:58:23,108 INFO L226 Difference]: Without dead ends: 33 [2019-10-15 02:58:23,109 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 02:58:23,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-10-15 02:58:23,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2019-10-15 02:58:23,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-15 02:58:23,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2019-10-15 02:58:23,116 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 18 [2019-10-15 02:58:23,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:58:23,116 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2019-10-15 02:58:23,116 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-15 02:58:23,116 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2019-10-15 02:58:23,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-15 02:58:23,117 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:23,117 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 02:58:23,327 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:58:23,328 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:23,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:23,328 INFO L82 PathProgramCache]: Analyzing trace with hash -886164732, now seen corresponding path program 2 times [2019-10-15 02:58:23,328 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:23,329 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736379276] [2019-10-15 02:58:23,329 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:23,329 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:23,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:23,475 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 02:58:23,475 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736379276] [2019-10-15 02:58:23,476 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115481822] [2019-10-15 02:58:23,476 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 02:58:23,692 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2019-10-15 02:58:23,692 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 02:58:23,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 02:58:23,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:58:23,727 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 02:58:23,727 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:58:23,802 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 02:58:23,803 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2034431098] [2019-10-15 02:58:23,804 INFO L162 IcfgInterpreter]: Started Sifa with 16 locations of interest [2019-10-15 02:58:23,805 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 02:58:23,805 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 02:58:23,805 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 02:58:23,805 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 02:58:23,843 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-15 02:58:24,127 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:24,476 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-15 02:58:24,480 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 02:58:24,985 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 02:58:24,986 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 10] total 23 [2019-10-15 02:58:24,986 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750062195] [2019-10-15 02:58:24,988 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-15 02:58:24,988 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:58:24,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-15 02:58:24,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2019-10-15 02:58:24,989 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 23 states. [2019-10-15 02:58:26,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:58:26,939 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2019-10-15 02:58:26,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2019-10-15 02:58:26,940 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 30 [2019-10-15 02:58:26,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:58:26,942 INFO L225 Difference]: With dead ends: 63 [2019-10-15 02:58:26,942 INFO L226 Difference]: Without dead ends: 57 [2019-10-15 02:58:26,944 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 72 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1012 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=665, Invalid=2641, Unknown=0, NotChecked=0, Total=3306 [2019-10-15 02:58:26,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-10-15 02:58:26,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2019-10-15 02:58:26,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-10-15 02:58:26,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 56 transitions. [2019-10-15 02:58:26,952 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 56 transitions. Word has length 30 [2019-10-15 02:58:26,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:58:26,952 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 56 transitions. [2019-10-15 02:58:26,953 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-15 02:58:26,953 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 56 transitions. [2019-10-15 02:58:26,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-15 02:58:26,954 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:26,954 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 02:58:27,158 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:58:27,159 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:27,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:27,159 INFO L82 PathProgramCache]: Analyzing trace with hash -148102622, now seen corresponding path program 3 times [2019-10-15 02:58:27,160 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:27,160 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566238039] [2019-10-15 02:58:27,160 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:27,161 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:27,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:27,758 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 02:58:27,766 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566238039] [2019-10-15 02:58:27,766 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602381955] [2019-10-15 02:58:27,766 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 02:58:28,104 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-15 02:58:28,105 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 02:58:28,108 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 116 conjunts are in the unsatisfiable core [2019-10-15 02:58:28,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:58:29,100 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2019-10-15 02:58:29,402 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-10-15 02:58:29,553 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2019-10-15 02:58:29,749 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2019-10-15 02:58:30,140 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 60 [2019-10-15 02:58:30,533 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-10-15 02:58:30,763 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2019-10-15 02:58:30,979 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 72 [2019-10-15 02:58:31,264 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2019-10-15 02:58:31,687 WARN L191 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 76 [2019-10-15 02:58:31,908 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-10-15 02:58:32,254 WARN L191 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-10-15 02:58:32,663 WARN L191 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 118 [2019-10-15 02:58:32,969 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 92 [2019-10-15 02:58:33,353 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2019-10-15 02:58:34,627 WARN L191 SmtUtils]: Spent 987.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 95 [2019-10-15 02:58:35,162 WARN L191 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-10-15 02:58:35,868 WARN L191 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 116 [2019-10-15 02:58:36,468 WARN L191 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 159 [2019-10-15 02:58:37,158 WARN L191 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 112 [2019-10-15 02:58:37,926 WARN L191 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2019-10-15 02:58:39,292 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 185 DAG size of output: 114 [2019-10-15 02:58:39,757 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-10-15 02:58:40,938 WARN L191 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 154 DAG size of output: 138 [2019-10-15 02:58:41,771 WARN L191 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 206 [2019-10-15 02:58:43,307 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 371 DAG size of output: 137 [2019-10-15 02:58:44,070 WARN L191 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 236 [2019-10-15 02:58:46,596 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 233 DAG size of output: 137 [2019-10-15 02:58:47,079 WARN L191 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-10-15 02:58:48,213 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 180 DAG size of output: 162 [2019-10-15 02:58:49,539 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 293 DAG size of output: 259 [2019-10-15 02:58:51,590 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 453 DAG size of output: 163 [2019-10-15 02:58:52,576 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 293