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-ext3-properties/sll_circular_traversal-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 02:58:32,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:58:32,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:58:32,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:58:32,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:58:32,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:58:32,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:58:32,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:58:32,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:58:32,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:58:32,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:58:32,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:58:32,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:58:32,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:58:32,594 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:58:32,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:58:32,596 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:58:32,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:58:32,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:58:32,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:58:32,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:58:32,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:58:32,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:58:32,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:58:32,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 02:58:32,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 02:58:32,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 02:58:32,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 02:58:32,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 02:58:32,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 02:58:32,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 02:58:32,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 02:58:32,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 02:58:32,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 02:58:32,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 02:58:32,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 02:58:32,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 02:58:32,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 02:58:32,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:58:32,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:58:32,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:58:32,616 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 02:58:32,631 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:58:32,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:58:32,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:58:32,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:58:32,634 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:58:32,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:58:32,634 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:58:32,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:58:32,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:58:32,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:58:32,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:58:32,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:58:32,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:58:32,637 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:58:32,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:58:32,637 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:58:32,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:58:32,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:58:32,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:58:32,639 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:58:32,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:58:32,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:58:32,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:58:32,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:58:32,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:58:32,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:58:32,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:58:32,641 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:58:32,641 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 02:58:32,968 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:58:32,993 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:58:32,997 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:58:32,998 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:58:32,999 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:58:32,999 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext3-properties/sll_circular_traversal-1.i [2019-10-15 02:58:33,076 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3fa1719e/9dcf262b75f949efbd7fa718c3dba307/FLAG14a3d71e6 [2019-10-15 02:58:33,698 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:58:33,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext3-properties/sll_circular_traversal-1.i [2019-10-15 02:58:33,730 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3fa1719e/9dcf262b75f949efbd7fa718c3dba307/FLAG14a3d71e6 [2019-10-15 02:58:34,021 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3fa1719e/9dcf262b75f949efbd7fa718c3dba307 [2019-10-15 02:58:34,030 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:58:34,031 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:58:34,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:58:34,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:58:34,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:58:34,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:58:34" (1/1) ... [2019-10-15 02:58:34,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39aa9343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:34, skipping insertion in model container [2019-10-15 02:58:34,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:58:34" (1/1) ... [2019-10-15 02:58:34,047 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:58:34,102 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:58:34,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:58:34,591 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:58:34,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:58:34,719 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:58:34,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:34 WrapperNode [2019-10-15 02:58:34,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:58:34,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:58:34,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:58:34,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:58:34,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:34" (1/1) ... [2019-10-15 02:58:34,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:34" (1/1) ... [2019-10-15 02:58:34,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:34" (1/1) ... [2019-10-15 02:58:34,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:34" (1/1) ... [2019-10-15 02:58:34,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:34" (1/1) ... [2019-10-15 02:58:34,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:34" (1/1) ... [2019-10-15 02:58:34,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:34" (1/1) ... [2019-10-15 02:58:34,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:58:34,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:58:34,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:58:34,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:58:34,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:34" (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 02:58:34,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:58:34,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:58:34,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 02:58:34,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 02:58:34,844 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-15 02:58:34,844 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2019-10-15 02:58:34,844 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:58:34,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:58:34,845 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 02:58:34,845 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 02:58:34,845 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 02:58:34,845 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 02:58:34,845 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 02:58:34,846 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 02:58:34,846 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 02:58:34,846 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 02:58:34,846 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 02:58:34,846 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 02:58:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 02:58:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 02:58:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 02:58:34,848 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 02:58:34,848 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 02:58:34,848 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 02:58:34,848 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 02:58:34,850 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 02:58:34,851 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 02:58:34,851 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 02:58:34,851 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 02:58:34,852 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 02:58:34,852 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 02:58:34,852 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 02:58:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 02:58:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 02:58:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 02:58:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 02:58:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 02:58:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 02:58:34,854 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 02:58:34,854 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 02:58:34,854 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 02:58:34,855 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 02:58:34,855 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 02:58:34,855 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 02:58:34,855 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 02:58:34,855 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 02:58:34,855 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 02:58:34,856 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 02:58:34,856 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 02:58:34,856 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 02:58:34,856 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 02:58:34,856 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 02:58:34,856 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 02:58:34,856 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 02:58:34,857 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 02:58:34,857 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 02:58:34,857 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 02:58:34,857 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 02:58:34,857 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 02:58:34,858 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 02:58:34,858 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 02:58:34,858 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 02:58:34,858 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 02:58:34,858 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 02:58:34,859 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 02:58:34,859 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 02:58:34,859 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 02:58:34,859 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 02:58:34,860 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 02:58:34,860 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 02:58:34,860 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 02:58:34,860 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 02:58:34,861 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 02:58:34,861 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 02:58:34,862 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 02:58:34,862 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 02:58:34,862 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 02:58:34,863 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 02:58:34,863 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 02:58:34,863 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 02:58:34,864 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 02:58:34,864 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 02:58:34,864 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 02:58:34,864 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 02:58:34,864 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 02:58:34,864 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 02:58:34,865 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 02:58:34,866 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 02:58:34,866 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 02:58:34,866 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 02:58:34,866 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 02:58:34,866 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 02:58:34,866 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 02:58:34,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 02:58:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 02:58:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 02:58:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 02:58:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 02:58:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 02:58:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 02:58:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 02:58:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 02:58:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 02:58:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 02:58:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 02:58:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 02:58:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 02:58:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 02:58:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 02:58:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 02:58:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 02:58:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 02:58:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 02:58:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-15 02:58:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2019-10-15 02:58:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 02:58:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 02:58:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 02:58:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:58:34,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 02:58:34,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 02:58:34,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:58:34,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:58:34,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:58:35,266 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-15 02:58:35,482 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:58:35,483 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-15 02:58:35,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:58:35 BoogieIcfgContainer [2019-10-15 02:58:35,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:58:35,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:58:35,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:58:35,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:58:35,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:58:34" (1/3) ... [2019-10-15 02:58:35,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262bb100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:58:35, skipping insertion in model container [2019-10-15 02:58:35,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:58:34" (2/3) ... [2019-10-15 02:58:35,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262bb100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:58:35, skipping insertion in model container [2019-10-15 02:58:35,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:58:35" (3/3) ... [2019-10-15 02:58:35,493 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_circular_traversal-1.i [2019-10-15 02:58:35,503 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:58:35,512 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:58:35,523 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:58:35,544 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:58:35,544 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:58:35,544 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:58:35,544 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:58:35,544 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:58:35,545 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:58:35,545 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:58:35,545 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:58:35,560 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-10-15 02:58:35,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-15 02:58:35,566 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:35,567 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:58:35,569 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:35,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:35,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1849530489, now seen corresponding path program 1 times [2019-10-15 02:58:35,584 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:35,585 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884629755] [2019-10-15 02:58:35,585 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:35,585 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:35,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:35,820 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 02:58:35,821 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884629755] [2019-10-15 02:58:35,822 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:58:35,822 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 02:58:35,823 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818698115] [2019-10-15 02:58:35,828 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 02:58:35,828 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:58:35,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 02:58:35,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:58:35,847 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 5 states. [2019-10-15 02:58:35,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:58:35,948 INFO L93 Difference]: Finished difference Result 52 states and 67 transitions. [2019-10-15 02:58:35,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 02:58:35,949 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-10-15 02:58:35,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:58:35,959 INFO L225 Difference]: With dead ends: 52 [2019-10-15 02:58:35,960 INFO L226 Difference]: Without dead ends: 26 [2019-10-15 02:58:35,964 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 02:58:36,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-10-15 02:58:36,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2019-10-15 02:58:36,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-10-15 02:58:36,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2019-10-15 02:58:36,026 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 15 [2019-10-15 02:58:36,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:58:36,026 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2019-10-15 02:58:36,026 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 02:58:36,027 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2019-10-15 02:58:36,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-15 02:58:36,028 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:36,028 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:58:36,028 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:36,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:36,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1219023517, now seen corresponding path program 1 times [2019-10-15 02:58:36,029 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:36,029 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854331281] [2019-10-15 02:58:36,029 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:36,030 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:36,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:36,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:58:36,157 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854331281] [2019-10-15 02:58:36,158 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571131678] [2019-10-15 02:58:36,158 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 02:58:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:36,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-15 02:58:36,300 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:58:36,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:58:36,331 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:58:36,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:58:36,468 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [374059818] [2019-10-15 02:58:36,517 INFO L162 IcfgInterpreter]: Started Sifa with 18 locations of interest [2019-10-15 02:58:36,517 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 02:58:36,529 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 02:58:36,537 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 02:58:36,538 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 02:58:36,710 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-15 02:58:36,847 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:37,050 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:37,581 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:37,896 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:38,238 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:38,459 INFO L199 IcfgInterpreter]: Interpreting procedure sll_circular_create with input of size 33 for LOIs [2019-10-15 02:58:46,011 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-15 02:58:46,018 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 02:58:46,506 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2019-10-15 02:58:47,030 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 02:58:47,030 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 14] total 22 [2019-10-15 02:58:47,030 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540817208] [2019-10-15 02:58:47,033 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-15 02:58:47,033 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:58:47,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-15 02:58:47,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2019-10-15 02:58:47,037 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 22 states. [2019-10-15 02:58:48,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:58:48,147 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2019-10-15 02:58:48,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-15 02:58:48,148 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 18 [2019-10-15 02:58:48,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:58:48,149 INFO L225 Difference]: With dead ends: 44 [2019-10-15 02:58:48,149 INFO L226 Difference]: Without dead ends: 33 [2019-10-15 02:58:48,151 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=193, Invalid=1139, Unknown=0, NotChecked=0, Total=1332 [2019-10-15 02:58:48,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-10-15 02:58:48,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2019-10-15 02:58:48,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-15 02:58:48,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2019-10-15 02:58:48,157 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 18 [2019-10-15 02:58:48,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:58:48,157 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2019-10-15 02:58:48,158 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-15 02:58:48,158 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2019-10-15 02:58:48,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-15 02:58:48,159 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:48,159 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:58:48,367 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:58:48,368 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:48,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:48,368 INFO L82 PathProgramCache]: Analyzing trace with hash -322193927, now seen corresponding path program 2 times [2019-10-15 02:58:48,369 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:48,369 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191667204] [2019-10-15 02:58:48,370 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:48,370 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:48,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:48,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:48,500 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:58:48,501 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191667204] [2019-10-15 02:58:48,501 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516260000] [2019-10-15 02:58:48,501 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 02:58:48,620 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-10-15 02:58:48,621 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 02:58:48,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 02:58:48,624 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:58:48,635 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:58:48,635 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:58:48,732 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:58:48,732 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2085906344] [2019-10-15 02:58:48,734 INFO L162 IcfgInterpreter]: Started Sifa with 18 locations of interest [2019-10-15 02:58:48,734 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 02:58:48,735 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 02:58:48,735 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 02:58:48,735 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 02:58:48,783 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-15 02:58:48,844 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:48,960 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:49,406 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:49,529 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:49,775 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:49,884 INFO L199 IcfgInterpreter]: Interpreting procedure sll_circular_create with input of size 33 for LOIs [2019-10-15 02:58:55,176 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-15 02:58:55,179 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 02:58:55,639 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2019-10-15 02:58:55,973 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 02:58:55,973 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 14] total 24 [2019-10-15 02:58:55,974 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465261969] [2019-10-15 02:58:55,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-15 02:58:55,975 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:58:55,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-15 02:58:55,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2019-10-15 02:58:55,976 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 24 states. [2019-10-15 02:58:57,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:58:57,265 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2019-10-15 02:58:57,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-15 02:58:57,269 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 21 [2019-10-15 02:58:57,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:58:57,270 INFO L225 Difference]: With dead ends: 47 [2019-10-15 02:58:57,270 INFO L226 Difference]: Without dead ends: 36 [2019-10-15 02:58:57,272 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 42 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=236, Invalid=1404, Unknown=0, NotChecked=0, Total=1640 [2019-10-15 02:58:57,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-10-15 02:58:57,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2019-10-15 02:58:57,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-10-15 02:58:57,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2019-10-15 02:58:57,282 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 21 [2019-10-15 02:58:57,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:58:57,282 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2019-10-15 02:58:57,282 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-15 02:58:57,282 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2019-10-15 02:58:57,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-15 02:58:57,283 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:58:57,284 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:58:57,496 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:58:57,497 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:58:57,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:58:57,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1530673891, now seen corresponding path program 3 times [2019-10-15 02:58:57,498 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:58:57,498 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653358922] [2019-10-15 02:58:57,499 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:57,499 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:58:57,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:58:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:58:57,581 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:58:57,581 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653358922] [2019-10-15 02:58:57,582 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951493431] [2019-10-15 02:58:57,582 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 02:58:57,705 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-15 02:58:57,706 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 02:58:57,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-15 02:58:57,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:58:57,714 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:58:57,714 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:58:57,818 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:58:57,819 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [597730814] [2019-10-15 02:58:57,820 INFO L162 IcfgInterpreter]: Started Sifa with 18 locations of interest [2019-10-15 02:58:57,820 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 02:58:57,821 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 02:58:57,821 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 02:58:57,821 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 02:58:57,843 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-15 02:58:57,897 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:58,005 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:58,366 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:58,591 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:58,891 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:58:58,995 INFO L199 IcfgInterpreter]: Interpreting procedure sll_circular_create with input of size 33 for LOIs [2019-10-15 02:59:04,909 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-15 02:59:04,912 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 02:59:05,363 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2019-10-15 02:59:05,797 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 02:59:05,797 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 14] total 25 [2019-10-15 02:59:05,797 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018591533] [2019-10-15 02:59:05,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-15 02:59:05,799 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:59:05,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-15 02:59:05,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2019-10-15 02:59:05,800 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 25 states. [2019-10-15 02:59:07,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:59:07,151 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2019-10-15 02:59:07,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-15 02:59:07,152 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 24 [2019-10-15 02:59:07,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:59:07,153 INFO L225 Difference]: With dead ends: 50 [2019-10-15 02:59:07,153 INFO L226 Difference]: Without dead ends: 39 [2019-10-15 02:59:07,155 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 49 SyntacticMatches, 7 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=275, Invalid=1617, Unknown=0, NotChecked=0, Total=1892 [2019-10-15 02:59:07,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-10-15 02:59:07,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 33. [2019-10-15 02:59:07,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-10-15 02:59:07,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2019-10-15 02:59:07,163 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 24 [2019-10-15 02:59:07,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:59:07,163 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2019-10-15 02:59:07,163 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-15 02:59:07,163 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2019-10-15 02:59:07,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-15 02:59:07,164 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:59:07,164 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:59:07,374 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:59:07,374 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:59:07,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:59:07,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1353560953, now seen corresponding path program 4 times [2019-10-15 02:59:07,376 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:59:07,376 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76282042] [2019-10-15 02:59:07,376 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:07,377 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:07,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:59:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:59:07,858 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 02:59:07,858 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76282042] [2019-10-15 02:59:07,858 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135778058] [2019-10-15 02:59:07,859 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:59:07,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:59:08,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 35 conjunts are in the unsatisfiable core [2019-10-15 02:59:08,007 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:59:08,164 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 02:59:08,165 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:59:08,608 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 02:59:08,609 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [439707030] [2019-10-15 02:59:08,614 INFO L162 IcfgInterpreter]: Started Sifa with 18 locations of interest [2019-10-15 02:59:08,614 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 02:59:08,615 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 02:59:08,615 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 02:59:08,616 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 02:59:08,647 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-15 02:59:08,744 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:59:08,874 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:59:09,356 WARN L225 Elim1Store]: Array PQE input equivalent to false