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-simple/sll2c_update_all.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:00:11,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:00:11,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:00:11,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:00:11,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:00:11,413 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:00:11,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:00:11,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:00:11,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:00:11,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:00:11,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:00:11,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:00:11,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:00:11,436 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:00:11,439 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:00:11,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:00:11,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:00:11,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:00:11,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:00:11,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:00:11,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:00:11,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:00:11,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:00:11,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:00:11,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:00:11,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:00:11,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:00:11,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:00:11,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:00:11,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:00:11,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:00:11,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:00:11,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:00:11,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:00:11,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:00:11,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:00:11,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:00:11,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:00:11,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:00:11,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:00:11,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:00:11,483 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 03:00:11,520 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:00:11,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:00:11,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:00:11,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:00:11,526 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:00:11,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:00:11,526 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:00:11,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:00:11,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:00:11,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:00:11,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:00:11,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:00:11,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:00:11,530 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:00:11,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:00:11,530 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:00:11,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:00:11,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:00:11,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:00:11,531 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:00:11,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:00:11,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:00:11,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:00:11,532 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:00:11,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:00:11,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:00:11,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:00:11,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:00:11,534 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 03:00:11,831 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:00:11,848 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:00:11,852 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:00:11,853 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:00:11,854 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:00:11,855 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2c_update_all.i [2019-10-15 03:00:11,918 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e9ba4cc7/660dc739024d4ac9aa2f8c01f0457638/FLAG6e61e0f77 [2019-10-15 03:00:12,434 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:00:12,434 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2c_update_all.i [2019-10-15 03:00:12,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e9ba4cc7/660dc739024d4ac9aa2f8c01f0457638/FLAG6e61e0f77 [2019-10-15 03:00:12,769 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e9ba4cc7/660dc739024d4ac9aa2f8c01f0457638 [2019-10-15 03:00:12,780 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:00:12,782 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:00:12,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:00:12,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:00:12,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:00:12,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:00:12" (1/1) ... [2019-10-15 03:00:12,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@480f96c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:12, skipping insertion in model container [2019-10-15 03:00:12,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:00:12" (1/1) ... [2019-10-15 03:00:12,801 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:00:12,860 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:00:13,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:00:13,435 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:00:13,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:00:13,590 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:00:13,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:13 WrapperNode [2019-10-15 03:00:13,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:00:13,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:00:13,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:00:13,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:00:13,607 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:13" (1/1) ... [2019-10-15 03:00:13,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:13" (1/1) ... [2019-10-15 03:00:13,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:13" (1/1) ... [2019-10-15 03:00:13,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:13" (1/1) ... [2019-10-15 03:00:13,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:13" (1/1) ... [2019-10-15 03:00:13,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:13" (1/1) ... [2019-10-15 03:00:13,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:13" (1/1) ... [2019-10-15 03:00:13,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:00:13,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:00:13,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:00:13,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:00:13,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:13" (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 03:00:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:00:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:00:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 03:00:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 03:00:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-15 03:00:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-15 03:00:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2019-10-15 03:00:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_destroy [2019-10-15 03:00:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_get_data_at [2019-10-15 03:00:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_update_at [2019-10-15 03:00:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:00:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:00:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 03:00:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 03:00:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 03:00:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 03:00:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 03:00:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 03:00:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 03:00:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 03:00:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 03:00:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 03:00:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 03:00:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 03:00:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 03:00:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 03:00:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 03:00:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 03:00:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 03:00:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 03:00:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 03:00:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 03:00:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 03:00:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 03:00:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 03:00:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 03:00:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 03:00:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 03:00:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 03:00:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 03:00:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 03:00:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 03:00:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 03:00:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 03:00:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 03:00:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 03:00:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 03:00:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 03:00:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 03:00:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 03:00:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 03:00:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 03:00:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 03:00:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 03:00:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 03:00:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 03:00:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 03:00:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 03:00:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 03:00:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 03:00:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 03:00:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 03:00:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 03:00:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 03:00:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:00:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 03:00:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 03:00:13,743 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:00:13,743 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 03:00:13,743 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 03:00:13,743 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 03:00:13,743 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 03:00:13,743 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 03:00:13,744 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 03:00:13,744 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 03:00:13,744 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 03:00:13,744 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 03:00:13,744 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 03:00:13,744 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 03:00:13,745 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 03:00:13,745 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 03:00:13,745 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 03:00:13,745 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 03:00:13,745 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 03:00:13,745 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 03:00:13,745 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 03:00:13,746 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 03:00:13,746 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 03:00:13,746 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 03:00:13,746 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 03:00:13,746 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 03:00:13,746 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 03:00:13,746 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 03:00:13,747 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 03:00:13,747 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 03:00:13,747 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 03:00:13,747 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 03:00:13,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 03:00:13,747 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 03:00:13,748 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 03:00:13,748 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 03:00:13,748 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 03:00:13,748 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 03:00:13,748 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 03:00:13,748 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 03:00:13,748 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 03:00:13,749 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 03:00:13,749 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 03:00:13,749 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 03:00:13,749 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 03:00:13,749 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 03:00:13,749 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 03:00:13,749 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 03:00:13,750 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 03:00:13,750 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 03:00:13,750 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 03:00:13,750 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 03:00:13,750 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-15 03:00:13,750 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-15 03:00:13,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:00:13,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:00:13,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:00:13,751 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2019-10-15 03:00:13,751 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_destroy [2019-10-15 03:00:13,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:00:13,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:00:13,752 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_get_data_at [2019-10-15 03:00:13,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:00:13,752 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_update_at [2019-10-15 03:00:13,752 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:00:13,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:00:13,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:00:14,152 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-15 03:00:14,485 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:00:14,485 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-15 03:00:14,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:00:14 BoogieIcfgContainer [2019-10-15 03:00:14,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:00:14,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:00:14,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:00:14,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:00:14,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:00:12" (1/3) ... [2019-10-15 03:00:14,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464b58f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:00:14, skipping insertion in model container [2019-10-15 03:00:14,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:13" (2/3) ... [2019-10-15 03:00:14,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464b58f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:00:14, skipping insertion in model container [2019-10-15 03:00:14,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:00:14" (3/3) ... [2019-10-15 03:00:14,497 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2c_update_all.i [2019-10-15 03:00:14,508 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:00:14,517 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:00:14,530 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:00:14,555 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:00:14,555 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:00:14,556 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:00:14,556 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:00:14,556 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:00:14,556 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:00:14,557 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:00:14,557 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:00:14,572 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2019-10-15 03:00:14,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-15 03:00:14,580 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:00:14,581 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:00:14,583 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:00:14,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:00:14,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1316105522, now seen corresponding path program 1 times [2019-10-15 03:00:14,598 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:00:14,598 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735122934] [2019-10-15 03:00:14,599 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:14,599 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:14,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:00:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:00:14,882 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 03:00:14,883 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735122934] [2019-10-15 03:00:14,884 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:00:14,884 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:00:14,885 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407285589] [2019-10-15 03:00:14,890 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:00:14,890 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:00:14,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:00:14,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:00:14,907 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 5 states. [2019-10-15 03:00:15,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:00:15,007 INFO L93 Difference]: Finished difference Result 78 states and 95 transitions. [2019-10-15 03:00:15,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:00:15,009 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-10-15 03:00:15,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:00:15,017 INFO L225 Difference]: With dead ends: 78 [2019-10-15 03:00:15,017 INFO L226 Difference]: Without dead ends: 36 [2019-10-15 03:00:15,021 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 03:00:15,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-10-15 03:00:15,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2019-10-15 03:00:15,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-10-15 03:00:15,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2019-10-15 03:00:15,072 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 25 [2019-10-15 03:00:15,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:00:15,073 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2019-10-15 03:00:15,073 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:00:15,073 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2019-10-15 03:00:15,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-15 03:00:15,075 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:00:15,075 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:00:15,076 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:00:15,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:00:15,076 INFO L82 PathProgramCache]: Analyzing trace with hash -168761337, now seen corresponding path program 1 times [2019-10-15 03:00:15,076 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:00:15,077 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653697899] [2019-10-15 03:00:15,077 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:15,077 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:15,077 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:00:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:00:15,226 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 03:00:15,229 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653697899] [2019-10-15 03:00:15,229 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:00:15,229 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:00:15,230 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786867255] [2019-10-15 03:00:15,231 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:00:15,232 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:00:15,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:00:15,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:00:15,232 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand 4 states. [2019-10-15 03:00:15,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:00:15,284 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2019-10-15 03:00:15,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 03:00:15,285 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-10-15 03:00:15,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:00:15,287 INFO L225 Difference]: With dead ends: 52 [2019-10-15 03:00:15,287 INFO L226 Difference]: Without dead ends: 43 [2019-10-15 03:00:15,290 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:00:15,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-10-15 03:00:15,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 35. [2019-10-15 03:00:15,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-10-15 03:00:15,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2019-10-15 03:00:15,305 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 32 [2019-10-15 03:00:15,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:00:15,306 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2019-10-15 03:00:15,306 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:00:15,306 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2019-10-15 03:00:15,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-15 03:00:15,307 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:00:15,308 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:00:15,308 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:00:15,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:00:15,309 INFO L82 PathProgramCache]: Analyzing trace with hash 575567927, now seen corresponding path program 1 times [2019-10-15 03:00:15,309 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:00:15,309 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952886950] [2019-10-15 03:00:15,309 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:15,309 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:15,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:00:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:00:15,447 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 03:00:15,448 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952886950] [2019-10-15 03:00:15,448 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604565555] [2019-10-15 03:00:15,448 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 03:00:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:00:15,591 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-15 03:00:15,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:00:15,662 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 03:00:15,662 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:00:15,723 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-15 03:00:15,724 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [481101457] [2019-10-15 03:00:15,757 INFO L162 IcfgInterpreter]: Started Sifa with 33 locations of interest [2019-10-15 03:00:15,757 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:00:15,764 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:00:15,773 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:00:15,774 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:00:15,966 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-15 03:00:16,118 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:17,820 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:17,989 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:18,383 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:18,559 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:18,917 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:19,017 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:19,306 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:19,353 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:19,678 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:19,754 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:20,002 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:20,093 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:20,307 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:20,370 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:20,668 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:20,751 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:20,880 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:20,966 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:21,151 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:21,213 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:21,515 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:21,596 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:21,831 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:21,884 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:21,954 INFO L199 IcfgInterpreter]: Interpreting procedure sll_circular_update_at with input of size 78 for LOIs [2019-10-15 03:00:21,963 INFO L199 IcfgInterpreter]: Interpreting procedure sll_circular_create with input of size 33 for LOIs [2019-10-15 03:00:27,236 INFO L199 IcfgInterpreter]: Interpreting procedure node_create with input of size 74 for LOIs [2019-10-15 03:00:27,351 INFO L199 IcfgInterpreter]: Interpreting procedure sll_circular_get_data_at with input of size 1 for LOIs [2019-10-15 03:00:27,355 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-15 03:00:27,359 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 03:00:30,412 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2019-10-15 03:00:30,815 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2019-10-15 03:00:31,134 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 56 [2019-10-15 03:00:35,957 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 03:00:35,957 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [5, 5, 5] total 28 [2019-10-15 03:00:35,958 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389939109] [2019-10-15 03:00:35,960 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-15 03:00:35,960 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:00:35,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-15 03:00:35,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=662, Unknown=4, NotChecked=0, Total=756 [2019-10-15 03:00:35,961 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand 22 states. [2019-10-15 03:00:42,953 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 180 [2019-10-15 03:00:43,278 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2019-10-15 03:00:43,445 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-10-15 03:00:43,953 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2019-10-15 03:00:46,674 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 99