/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/dll2c_insert_equal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 03:55:33,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 03:55:33,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 03:55:33,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 03:55:33,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 03:55:33,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 03:55:33,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 03:55:33,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 03:55:33,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 03:55:33,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 03:55:33,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 03:55:33,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 03:55:33,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 03:55:33,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 03:55:33,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 03:55:33,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 03:55:33,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 03:55:33,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 03:55:33,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 03:55:33,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 03:55:33,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 03:55:33,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 03:55:33,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 03:55:33,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 03:55:33,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 03:55:33,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 03:55:33,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 03:55:33,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 03:55:33,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 03:55:33,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 03:55:33,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 03:55:33,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 03:55:33,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 03:55:33,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 03:55:33,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 03:55:33,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 03:55:33,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 03:55:33,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 03:55:33,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 03:55:33,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 03:55:33,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 03:55:33,884 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 03:55:33,904 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 03:55:33,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 03:55:33,906 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 03:55:33,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 03:55:33,907 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 03:55:33,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 03:55:33,907 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 03:55:33,907 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 03:55:33,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 03:55:33,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 03:55:33,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 03:55:33,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 03:55:33,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 03:55:33,910 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 03:55:33,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 03:55:33,910 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 03:55:33,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 03:55:33,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 03:55:33,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 03:55:33,911 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 03:55:33,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 03:55:33,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 03:55:33,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 03:55:33,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 03:55:33,912 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 03:55:33,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 03:55:33,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 03:55:33,913 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 03:55:33,913 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 03:55:34,218 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 03:55:34,232 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 03:55:34,236 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 03:55:34,238 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 03:55:34,238 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 03:55:34,239 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2c_insert_equal.i [2019-11-07 03:55:34,302 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef472c788/ca435d12546d466c839cfdf2fdce18e4/FLAGfe4ee9a88 [2019-11-07 03:55:34,839 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 03:55:34,840 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2c_insert_equal.i [2019-11-07 03:55:34,855 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef472c788/ca435d12546d466c839cfdf2fdce18e4/FLAGfe4ee9a88 [2019-11-07 03:55:35,157 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef472c788/ca435d12546d466c839cfdf2fdce18e4 [2019-11-07 03:55:35,169 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 03:55:35,177 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 03:55:35,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 03:55:35,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 03:55:35,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 03:55:35,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:55:35" (1/1) ... [2019-11-07 03:55:35,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@748a942a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:35, skipping insertion in model container [2019-11-07 03:55:35,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:55:35" (1/1) ... [2019-11-07 03:55:35,227 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 03:55:35,336 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 03:55:35,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:55:35,893 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 03:55:35,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:55:36,029 INFO L192 MainTranslator]: Completed translation [2019-11-07 03:55:36,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:36 WrapperNode [2019-11-07 03:55:36,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 03:55:36,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 03:55:36,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 03:55:36,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 03:55:36,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:36" (1/1) ... [2019-11-07 03:55:36,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:36" (1/1) ... [2019-11-07 03:55:36,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:36" (1/1) ... [2019-11-07 03:55:36,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:36" (1/1) ... [2019-11-07 03:55:36,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:36" (1/1) ... [2019-11-07 03:55:36,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:36" (1/1) ... [2019-11-07 03:55:36,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:36" (1/1) ... [2019-11-07 03:55:36,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 03:55:36,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 03:55:36,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 03:55:36,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 03:55:36,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:36" (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 03:55:36,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 03:55:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 03:55:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-07 03:55:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-07 03:55:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-07 03:55:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-11-07 03:55:36,169 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_create [2019-11-07 03:55:36,169 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_destroy [2019-11-07 03:55:36,169 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_insert [2019-11-07 03:55:36,169 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 03:55:36,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 03:55:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-07 03:55:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-07 03:55:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-07 03:55:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-07 03:55:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-07 03:55:36,171 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-07 03:55:36,171 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-07 03:55:36,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-07 03:55:36,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-07 03:55:36,172 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-07 03:55:36,173 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-07 03:55:36,173 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-07 03:55:36,173 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-07 03:55:36,173 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-07 03:55:36,173 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-07 03:55:36,174 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-07 03:55:36,174 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-07 03:55:36,174 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-07 03:55:36,174 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-07 03:55:36,174 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-07 03:55:36,174 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-07 03:55:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-07 03:55:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-07 03:55:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-07 03:55:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-07 03:55:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-07 03:55:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-07 03:55:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-07 03:55:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-07 03:55:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-07 03:55:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-07 03:55:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-07 03:55:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-07 03:55:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-07 03:55:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-07 03:55:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-07 03:55:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-07 03:55:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-07 03:55:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-07 03:55:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-07 03:55:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-07 03:55:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-07 03:55:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-07 03:55:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-07 03:55:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-07 03:55:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-07 03:55:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-07 03:55:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-07 03:55:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-07 03:55:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-07 03:55:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-07 03:55:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-07 03:55:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 03:55:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 03:55:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-07 03:55:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 03:55:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-07 03:55:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-07 03:55:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-07 03:55:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-07 03:55:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-07 03:55:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-07 03:55:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-07 03:55:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-07 03:55:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-07 03:55:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 03:55:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-07 03:55:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-07 03:55:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-07 03:55:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-07 03:55:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-07 03:55:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-07 03:55:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-07 03:55:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-07 03:55:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-07 03:55:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-07 03:55:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-07 03:55:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-07 03:55:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-07 03:55:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-07 03:55:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-07 03:55:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-07 03:55:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-07 03:55:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-07 03:55:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-07 03:55:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-07 03:55:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-07 03:55:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-07 03:55:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-07 03:55:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-07 03:55:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-07 03:55:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-07 03:55:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-07 03:55:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-07 03:55:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-07 03:55:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-07 03:55:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-07 03:55:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-07 03:55:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-07 03:55:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-07 03:55:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-07 03:55:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-07 03:55:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-07 03:55:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-07 03:55:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-07 03:55:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-07 03:55:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-11-07 03:55:36,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 03:55:36,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 03:55:36,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 03:55:36,188 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_create [2019-11-07 03:55:36,188 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_destroy [2019-11-07 03:55:36,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 03:55:36,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 03:55:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_insert [2019-11-07 03:55:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 03:55:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 03:55:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-07 03:55:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 03:55:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 03:55:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 03:55:36,674 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-07 03:55:38,532 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 03:55:38,533 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 03:55:38,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:55:38 BoogieIcfgContainer [2019-11-07 03:55:38,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 03:55:38,535 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 03:55:38,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 03:55:38,538 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 03:55:38,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:55:35" (1/3) ... [2019-11-07 03:55:38,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27041458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:55:38, skipping insertion in model container [2019-11-07 03:55:38,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:55:36" (2/3) ... [2019-11-07 03:55:38,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27041458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:55:38, skipping insertion in model container [2019-11-07 03:55:38,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:55:38" (3/3) ... [2019-11-07 03:55:38,542 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2c_insert_equal.i [2019-11-07 03:55:38,553 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 03:55:38,562 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 03:55:38,574 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 03:55:38,600 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 03:55:38,601 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 03:55:38,601 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 03:55:38,601 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 03:55:38,601 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 03:55:38,602 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 03:55:38,602 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 03:55:38,602 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 03:55:38,622 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2019-11-07 03:55:38,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-07 03:55:38,629 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:55:38,630 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 03:55:38,633 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:55:38,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:55:38,640 INFO L82 PathProgramCache]: Analyzing trace with hash 850705279, now seen corresponding path program 1 times [2019-11-07 03:55:38,650 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:55:38,650 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399385150] [2019-11-07 03:55:38,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:55:38,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:55:38,951 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 03:55:38,952 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399385150] [2019-11-07 03:55:38,952 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:55:38,953 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 03:55:38,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379966834] [2019-11-07 03:55:38,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 03:55:38,961 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:55:38,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 03:55:38,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 03:55:38,978 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2019-11-07 03:55:39,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:55:39,004 INFO L93 Difference]: Finished difference Result 59 states and 71 transitions. [2019-11-07 03:55:39,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 03:55:39,005 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 30 [2019-11-07 03:55:39,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:55:39,014 INFO L225 Difference]: With dead ends: 59 [2019-11-07 03:55:39,015 INFO L226 Difference]: Without dead ends: 31 [2019-11-07 03:55:39,018 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 03:55:39,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-07 03:55:39,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-07 03:55:39,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-07 03:55:39,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2019-11-07 03:55:39,063 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 30 [2019-11-07 03:55:39,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:55:39,065 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2019-11-07 03:55:39,066 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 03:55:39,066 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2019-11-07 03:55:39,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-07 03:55:39,068 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:55:39,068 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 03:55:39,068 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:55:39,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:55:39,069 INFO L82 PathProgramCache]: Analyzing trace with hash 850691360, now seen corresponding path program 1 times [2019-11-07 03:55:39,069 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:55:39,069 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68829515] [2019-11-07 03:55:39,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:55:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:55:39,295 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 03:55:39,295 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68829515] [2019-11-07 03:55:39,296 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:55:39,296 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 03:55:39,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611346023] [2019-11-07 03:55:39,298 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 03:55:39,298 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:55:39,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 03:55:39,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-07 03:55:39,299 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand 8 states. [2019-11-07 03:55:39,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:55:39,981 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2019-11-07 03:55:39,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 03:55:39,981 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2019-11-07 03:55:39,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:55:39,983 INFO L225 Difference]: With dead ends: 55 [2019-11-07 03:55:39,983 INFO L226 Difference]: Without dead ends: 35 [2019-11-07 03:55:39,984 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-11-07 03:55:39,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-07 03:55:39,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2019-11-07 03:55:39,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-07 03:55:39,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2019-11-07 03:55:39,993 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 30 [2019-11-07 03:55:39,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:55:39,993 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2019-11-07 03:55:39,993 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 03:55:39,993 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2019-11-07 03:55:39,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-07 03:55:39,998 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:55:39,998 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 03:55:39,998 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:55:39,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:55:39,998 INFO L82 PathProgramCache]: Analyzing trace with hash 123959918, now seen corresponding path program 1 times [2019-11-07 03:55:39,999 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:55:39,999 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953412863] [2019-11-07 03:55:39,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:55:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:55:42,764 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 45 [2019-11-07 03:55:43,131 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 48 [2019-11-07 03:55:45,917 WARN L191 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 272 DAG size of output: 134 [2019-11-07 03:55:47,391 WARN L191 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 231 DAG size of output: 109 [2019-11-07 03:55:50,027 WARN L191 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 166 DAG size of output: 151 [2019-11-07 03:55:50,249 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 03:55:50,250 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953412863] [2019-11-07 03:55:50,250 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655430467] [2019-11-07 03:55:50,250 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 03:55:50,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:55:50,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 139 conjunts are in the unsatisfiable core [2019-11-07 03:55:50,716 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 03:55:50,869 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 03:55:50,870 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:50,877 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:50,877 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-07 03:55:50,878 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-11-07 03:55:51,083 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2019-11-07 03:55:51,083 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:51,090 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:51,091 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-07 03:55:51,091 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:3 [2019-11-07 03:55:51,310 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 03:55:51,310 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:51,322 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:51,322 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-07 03:55:51,323 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2019-11-07 03:55:51,472 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:51,473 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 03:55:51,474 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:51,546 INFO L567 ElimStorePlain]: treesize reduction 14, result has 79.7 percent of original size [2019-11-07 03:55:51,547 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-07 03:55:51,547 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:57, output treesize:55 [2019-11-07 03:55:51,687 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:51,690 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:51,695 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:51,703 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_int_183|, |v_#memory_$Pointer$.base_98|], 2=[|v_#memory_int_171|]} [2019-11-07 03:55:51,721 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 115 treesize of output 99 [2019-11-07 03:55:51,722 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:51,738 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 111 treesize of output 95 [2019-11-07 03:55:51,739 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:51,877 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-11-07 03:55:51,878 INFO L567 ElimStorePlain]: treesize reduction 101, result has 48.7 percent of original size [2019-11-07 03:55:51,886 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2019-11-07 03:55:51,887 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:51,928 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:51,936 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 34 treesize of output 14 [2019-11-07 03:55:51,937 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:51,971 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:52,013 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 03:55:52,014 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:227, output treesize:64 [2019-11-07 03:55:52,188 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_172|, |v_#memory_int_184|], 10=[|v_#memory_$Pointer$.base_99|]} [2019-11-07 03:55:52,195 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 03:55:52,271 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:52,279 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 03:55:52,281 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 25 [2019-11-07 03:55:52,281 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:52,324 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:52,330 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 03:55:52,463 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-11-07 03:55:52,464 INFO L341 Elim1Store]: treesize reduction 27, result has 82.7 percent of original size [2019-11-07 03:55:52,464 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 108 treesize of output 169 [2019-11-07 03:55:52,467 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:52,570 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 47 [2019-11-07 03:55:52,570 INFO L567 ElimStorePlain]: treesize reduction 177, result has 41.6 percent of original size [2019-11-07 03:55:52,572 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-07 03:55:52,572 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:172, output treesize:113 [2019-11-07 03:55:54,787 WARN L191 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2019-11-07 03:55:55,174 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 7 [2019-11-07 03:55:55,175 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:55,221 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:55,226 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_BEFORE_CALL_1|, |v_#memory_int_BEFORE_CALL_1|], 11=[|v_#memory_$Pointer$.base_BEFORE_CALL_1|]} [2019-11-07 03:55:55,231 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 119 treesize of output 95 [2019-11-07 03:55:55,232 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:55,271 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:55,282 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2019-11-07 03:55:55,283 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-07 03:55:55,315 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:55,349 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:55,350 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 97 treesize of output 83 [2019-11-07 03:55:55,352 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:55,353 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:55,354 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:55,355 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:55,356 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:55,357 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:55:55,359 INFO L496 ElimStorePlain]: Start of recursive call 5: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-07 03:55:55,408 INFO L567 ElimStorePlain]: treesize reduction 36, result has 50.0 percent of original size [2019-11-07 03:55:55,410 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 03:55:55,410 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:199, output treesize:13 [2019-11-07 03:55:55,591 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 03:55:55,622 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:55,625 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 03:55:55,646 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 03:55:55,647 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-11-07 03:55:55,647 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:92, output treesize:68 [2019-11-07 03:55:57,104 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 42 [2019-11-07 03:55:59,083 WARN L191 SmtUtils]: Spent 1.77 s on a formula simplification that was a NOOP. DAG size: 48 [2019-11-07 03:56:00,923 WARN L191 SmtUtils]: Spent 1.62 s on a formula simplification that was a NOOP. DAG size: 56 [2019-11-07 03:56:02,142 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 60 [2019-11-07 03:56:02,151 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:56:02,155 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:56:02,160 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:56:02,165 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:56:02,171 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 03:56:02,213 INFO L392 ElimStorePlain]: Different costs {2=[v_prenex_9, |v_#memory_int_175|, |v_#memory_int_176|, |v_#memory_int_177|, |v_#memory_int_178|, |v_#memory_int_179|, |v_#memory_int_180|, |v_#memory_int_181|, |v_#memory_int_182|], 14=[|v_#memory_$Pointer$.offset_100|, |v_#memory_$Pointer$.base_101|], 18=[v_prenex_11], 30=[v_prenex_10], 42=[v_prenex_5, v_prenex_6]} [2019-11-07 03:56:02,223 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts.