/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/list-simple/sll2c_insert_unequal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 03:57:05,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 03:57:05,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 03:57:05,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 03:57:05,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 03:57:05,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 03:57:05,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 03:57:05,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 03:57:05,838 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 03:57:05,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 03:57:05,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 03:57:05,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 03:57:05,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 03:57:05,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 03:57:05,847 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 03:57:05,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 03:57:05,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 03:57:05,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 03:57:05,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 03:57:05,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 03:57:05,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 03:57:05,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 03:57:05,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 03:57:05,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 03:57:05,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 03:57:05,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 03:57:05,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 03:57:05,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 03:57:05,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 03:57:05,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 03:57:05,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 03:57:05,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 03:57:05,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 03:57:05,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 03:57:05,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 03:57:05,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 03:57:05,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 03:57:05,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 03:57:05,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 03:57:05,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 03:57:05,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 03:57:05,886 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 03:57:05,906 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 03:57:05,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 03:57:05,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 03:57:05,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 03:57:05,908 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 03:57:05,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 03:57:05,909 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 03:57:05,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 03:57:05,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 03:57:05,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 03:57:05,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 03:57:05,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 03:57:05,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 03:57:05,911 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 03:57:05,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 03:57:05,912 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 03:57:05,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 03:57:05,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 03:57:05,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 03:57:05,912 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 03:57:05,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 03:57:05,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 03:57:05,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 03:57:05,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 03:57:05,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 03:57:05,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 03:57:05,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 03:57:05,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 03:57:05,914 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 03:57:06,190 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 03:57:06,203 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 03:57:06,206 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 03:57:06,208 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 03:57:06,208 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 03:57:06,209 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2c_insert_unequal.i [2019-11-07 03:57:06,294 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25b298505/a2a619facfb246179d066a97942fecdd/FLAG10c8058f1 [2019-11-07 03:57:06,892 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 03:57:06,894 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2c_insert_unequal.i [2019-11-07 03:57:06,912 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25b298505/a2a619facfb246179d066a97942fecdd/FLAG10c8058f1 [2019-11-07 03:57:07,106 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25b298505/a2a619facfb246179d066a97942fecdd [2019-11-07 03:57:07,120 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 03:57:07,122 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 03:57:07,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 03:57:07,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 03:57:07,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 03:57:07,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:57:07" (1/1) ... [2019-11-07 03:57:07,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ebc7148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:07, skipping insertion in model container [2019-11-07 03:57:07,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:57:07" (1/1) ... [2019-11-07 03:57:07,138 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 03:57:07,177 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 03:57:07,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:57:07,656 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 03:57:07,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:57:07,767 INFO L192 MainTranslator]: Completed translation [2019-11-07 03:57:07,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:07 WrapperNode [2019-11-07 03:57:07,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 03:57:07,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 03:57:07,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 03:57:07,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 03:57:07,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:07" (1/1) ... [2019-11-07 03:57:07,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:07" (1/1) ... [2019-11-07 03:57:07,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:07" (1/1) ... [2019-11-07 03:57:07,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:07" (1/1) ... [2019-11-07 03:57:07,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:07" (1/1) ... [2019-11-07 03:57:07,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:07" (1/1) ... [2019-11-07 03:57:07,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:07" (1/1) ... [2019-11-07 03:57:07,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 03:57:07,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 03:57:07,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 03:57:07,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 03:57:07,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 03:57:07,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 03:57:07,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 03:57:07,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-07 03:57:07,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-07 03:57:07,927 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-07 03:57:07,928 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-11-07 03:57:07,929 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2019-11-07 03:57:07,929 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_destroy [2019-11-07 03:57:07,929 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_insert [2019-11-07 03:57:07,930 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 03:57:07,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 03:57:07,931 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-07 03:57:07,931 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-07 03:57:07,931 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-07 03:57:07,931 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-07 03:57:07,931 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-07 03:57:07,934 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-07 03:57:07,934 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-07 03:57:07,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-07 03:57:07,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-07 03:57:07,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-07 03:57:07,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-07 03:57:07,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-07 03:57:07,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-07 03:57:07,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-07 03:57:07,935 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-07 03:57:07,936 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-07 03:57:07,936 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-07 03:57:07,936 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-07 03:57:07,936 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-07 03:57:07,936 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-07 03:57:07,937 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-07 03:57:07,937 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-07 03:57:07,937 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-07 03:57:07,937 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-07 03:57:07,937 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-07 03:57:07,937 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-07 03:57:07,938 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-07 03:57:07,938 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-07 03:57:07,938 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-07 03:57:07,938 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-07 03:57:07,938 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-07 03:57:07,938 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-07 03:57:07,939 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-07 03:57:07,939 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-07 03:57:07,939 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-07 03:57:07,939 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-07 03:57:07,939 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-07 03:57:07,939 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-07 03:57:07,939 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-07 03:57:07,940 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-07 03:57:07,940 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-07 03:57:07,940 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-07 03:57:07,940 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-07 03:57:07,940 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-07 03:57:07,940 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-07 03:57:07,940 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-07 03:57:07,941 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-07 03:57:07,941 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-07 03:57:07,941 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-07 03:57:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-07 03:57:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-07 03:57:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-07 03:57:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 03:57:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 03:57:07,942 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-07 03:57:07,943 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 03:57:07,943 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-07 03:57:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-07 03:57:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-07 03:57:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-07 03:57:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-07 03:57:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-07 03:57:07,945 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-07 03:57:07,945 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-07 03:57:07,945 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-07 03:57:07,946 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 03:57:07,946 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-07 03:57:07,946 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-07 03:57:07,947 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-07 03:57:07,947 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-07 03:57:07,948 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-07 03:57:07,948 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-07 03:57:07,948 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-07 03:57:07,948 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-07 03:57:07,948 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-07 03:57:07,948 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-07 03:57:07,949 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-07 03:57:07,949 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-07 03:57:07,950 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-07 03:57:07,950 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-07 03:57:07,950 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-07 03:57:07,950 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-07 03:57:07,950 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-07 03:57:07,950 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-07 03:57:07,950 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-07 03:57:07,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-07 03:57:07,951 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-07 03:57:07,951 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-07 03:57:07,951 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-07 03:57:07,951 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-07 03:57:07,951 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-07 03:57:07,951 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-07 03:57:07,952 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-07 03:57:07,952 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-07 03:57:07,952 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-07 03:57:07,952 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-07 03:57:07,952 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-07 03:57:07,952 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-07 03:57:07,952 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-07 03:57:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-07 03:57:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-07 03:57:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-07 03:57:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-07 03:57:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-07 03:57:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-07 03:57:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-07 03:57:07,953 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-11-07 03:57:07,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 03:57:07,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 03:57:07,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 03:57:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2019-11-07 03:57:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_destroy [2019-11-07 03:57:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 03:57:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 03:57:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_insert [2019-11-07 03:57:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 03:57:07,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 03:57:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-07 03:57:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 03:57:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 03:57:07,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 03:57:08,364 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-07 03:57:08,912 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 03:57:08,912 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-07 03:57:08,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:57:08 BoogieIcfgContainer [2019-11-07 03:57:08,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 03:57:08,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 03:57:08,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 03:57:08,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 03:57:08,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:57:07" (1/3) ... [2019-11-07 03:57:08,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e374a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:57:08, skipping insertion in model container [2019-11-07 03:57:08,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:57:07" (2/3) ... [2019-11-07 03:57:08,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e374a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:57:08, skipping insertion in model container [2019-11-07 03:57:08,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:57:08" (3/3) ... [2019-11-07 03:57:08,948 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2c_insert_unequal.i [2019-11-07 03:57:08,957 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 03:57:08,965 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 03:57:08,975 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 03:57:08,996 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 03:57:08,996 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 03:57:08,997 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 03:57:08,997 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 03:57:08,997 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 03:57:08,997 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 03:57:08,997 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 03:57:08,997 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 03:57:09,014 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2019-11-07 03:57:09,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-07 03:57:09,020 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:57:09,021 INFO L410 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] [2019-11-07 03:57:09,023 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:57:09,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:57:09,029 INFO L82 PathProgramCache]: Analyzing trace with hash -407513617, now seen corresponding path program 1 times [2019-11-07 03:57:09,040 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:57:09,040 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691286876] [2019-11-07 03:57:09,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:57:09,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:57:09,427 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-07 03:57:09,428 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691286876] [2019-11-07 03:57:09,429 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:57:09,429 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 03:57:09,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163862064] [2019-11-07 03:57:09,436 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 03:57:09,436 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:57:09,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 03:57:09,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-11-07 03:57:09,454 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 9 states. [2019-11-07 03:57:09,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:57:09,840 INFO L93 Difference]: Finished difference Result 93 states and 121 transitions. [2019-11-07 03:57:09,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 03:57:09,844 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2019-11-07 03:57:09,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:57:09,862 INFO L225 Difference]: With dead ends: 93 [2019-11-07 03:57:09,863 INFO L226 Difference]: Without dead ends: 41 [2019-11-07 03:57:09,869 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-11-07 03:57:09,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-07 03:57:09,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2019-11-07 03:57:09,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-07 03:57:09,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2019-11-07 03:57:09,919 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 30 [2019-11-07 03:57:09,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:57:09,920 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2019-11-07 03:57:09,920 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 03:57:09,920 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2019-11-07 03:57:09,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-07 03:57:09,923 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:57:09,923 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2019-11-07 03:57:09,923 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:57:09,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:57:09,924 INFO L82 PathProgramCache]: Analyzing trace with hash -127964900, now seen corresponding path program 1 times [2019-11-07 03:57:09,924 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:57:09,924 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106497628] [2019-11-07 03:57:09,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:57:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:57:10,149 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-11-07 03:57:10,149 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106497628] [2019-11-07 03:57:10,149 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:57:10,150 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 03:57:10,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998757099] [2019-11-07 03:57:10,152 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 03:57:10,152 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:57:10,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 03:57:10,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 03:57:10,158 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand 6 states. [2019-11-07 03:57:10,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:57:10,336 INFO L93 Difference]: Finished difference Result 51 states and 64 transitions. [2019-11-07 03:57:10,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 03:57:10,337 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2019-11-07 03:57:10,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:57:10,339 INFO L225 Difference]: With dead ends: 51 [2019-11-07 03:57:10,339 INFO L226 Difference]: Without dead ends: 38 [2019-11-07 03:57:10,340 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-07 03:57:10,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-11-07 03:57:10,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-11-07 03:57:10,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-07 03:57:10,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2019-11-07 03:57:10,348 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 37 [2019-11-07 03:57:10,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:57:10,350 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2019-11-07 03:57:10,350 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 03:57:10,350 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2019-11-07 03:57:10,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-07 03:57:10,352 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:57:10,352 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2019-11-07 03:57:10,352 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:57:10,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:57:10,353 INFO L82 PathProgramCache]: Analyzing trace with hash -210909058, now seen corresponding path program 1 times [2019-11-07 03:57:10,353 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:57:10,353 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545140225] [2019-11-07 03:57:10,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:57:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:57:10,934 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 29 [2019-11-07 03:57:11,672 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2019-11-07 03:57:11,881 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2019-11-07 03:57:12,174 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2019-11-07 03:57:12,428 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 57 [2019-11-07 03:57:12,698 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 03:57:12,699 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545140225] [2019-11-07 03:57:12,699 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420021117] [2019-11-07 03:57:12,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:57:12,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:57:12,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 122 conjunts are in the unsatisfiable core [2019-11-07 03:57:12,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 03:57:13,091 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-07 03:57:13,092 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 03:57:13,094 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:57:13,094 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-07 03:57:13,094 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-07 03:57:13,283 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-11-07 03:57:13,283 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 03:57:13,294 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:57:13,295 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 03:57:13,295 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2019-11-07 03:57:13,438 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:57:13,439 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-11-07 03:57:13,441 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 03:57:13,485 INFO L567 ElimStorePlain]: treesize reduction 14, result has 75.4 percent of original size [2019-11-07 03:57:13,486 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-07 03:57:13,486 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:45, output treesize:43 [2019-11-07 03:57:13,572 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2019-11-07 03:57:13,573 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 03:57:13,590 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:57:13,591 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 03:57:13,592 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:54, output treesize:39 [2019-11-07 03:57:13,697 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2019-11-07 03:57:13,698 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 03:57:13,723 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:57:13,724 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 03:57:13,724 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:54, output treesize:39 [2019-11-07 03:57:14,049 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-07 03:57:14,050 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 03:57:14,083 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:57:14,098 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2019-11-07 03:57:14,099 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-07 03:57:14,120 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:57:14,125 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 26 [2019-11-07 03:57:14,126 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 03:57:14,145 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:57:14,150 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-07 03:57:14,151 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-07 03:57:14,166 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:57:14,167 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 03:57:14,167 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:82, output treesize:13 [2019-11-07 03:57:14,264 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 03:57:14,285 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:57:14,286 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-11-07 03:57:14,287 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:83, output treesize:71 [2019-11-07 03:57:22,419 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 42 [2019-11-07 03:57:26,569 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 48 [2019-11-07 03:57:26,884 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:57:26,885 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:57:26,888 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:57:26,895 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:57:26,900 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:57:26,934 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_94|, v_prenex_2, |v_#memory_int_95|, |v_#memory_int_96|], 10=[v_prenex_9, v_prenex_13, |v_#memory_$Pointer$.base_85|, |v_#memory_$Pointer$.offset_85|], 25=[v_prenex_3, v_prenex_7]} [2019-11-07 03:57:27,650 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 03:57:27,793 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts.