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/dll2n_insert_equal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 02:59:30,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:59:30,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:59:30,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:59:30,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:59:30,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:59:30,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:59:30,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:59:30,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:59:30,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:59:30,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:59:30,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:59:30,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:59:30,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:59:30,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:59:30,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:59:30,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:59:30,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:59:30,087 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:59:30,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:59:30,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:59:30,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:59:30,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:59:30,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:59:30,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 02:59:30,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 02:59:30,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 02:59:30,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 02:59:30,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 02:59:30,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 02:59:30,098 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 02:59:30,099 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 02:59:30,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 02:59:30,100 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 02:59:30,101 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 02:59:30,101 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 02:59:30,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 02:59:30,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 02:59:30,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:59:30,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:59:30,104 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:59:30,105 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 02:59:30,119 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:59:30,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:59:30,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:59:30,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:59:30,121 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:59:30,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:59:30,121 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:59:30,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:59:30,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:59:30,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:59:30,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:59:30,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:59:30,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:59:30,123 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:59:30,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:59:30,123 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:59:30,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:59:30,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:59:30,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:59:30,124 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:59:30,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:59:30,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:59:30,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:59:30,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:59:30,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:59:30,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:59:30,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:59:30,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:59:30,126 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 02:59:30,392 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:59:30,406 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:59:30,409 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:59:30,411 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:59:30,411 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:59:30,412 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2n_insert_equal.i [2019-10-15 02:59:30,475 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e61c109bf/b7fc8b241c8541dd98cbb986b09cb6fb/FLAG8ef9da86c [2019-10-15 02:59:30,979 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:59:30,979 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2n_insert_equal.i [2019-10-15 02:59:30,994 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e61c109bf/b7fc8b241c8541dd98cbb986b09cb6fb/FLAG8ef9da86c [2019-10-15 02:59:31,320 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e61c109bf/b7fc8b241c8541dd98cbb986b09cb6fb [2019-10-15 02:59:31,330 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:59:31,332 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:59:31,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:59:31,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:59:31,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:59:31,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:59:31" (1/1) ... [2019-10-15 02:59:31,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4872b234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:31, skipping insertion in model container [2019-10-15 02:59:31,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:59:31" (1/1) ... [2019-10-15 02:59:31,348 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:59:31,386 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:59:31,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:59:31,860 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:59:31,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:59:31,983 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:59:31,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:31 WrapperNode [2019-10-15 02:59:31,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:59:31,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:59:31,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:59:31,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:59:31,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:31" (1/1) ... [2019-10-15 02:59:31,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:31" (1/1) ... [2019-10-15 02:59:32,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:31" (1/1) ... [2019-10-15 02:59:32,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:31" (1/1) ... [2019-10-15 02:59:32,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:31" (1/1) ... [2019-10-15 02:59:32,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:31" (1/1) ... [2019-10-15 02:59:32,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:31" (1/1) ... [2019-10-15 02:59:32,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:59:32,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:59:32,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:59:32,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:59:32,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:59:32,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:59:32,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:59:32,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 02:59:32,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 02:59:32,118 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-15 02:59:32,118 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-15 02:59:32,118 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2019-10-15 02:59:32,118 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2019-10-15 02:59:32,119 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_insert [2019-10-15 02:59:32,119 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:59:32,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:59:32,119 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 02:59:32,119 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 02:59:32,120 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 02:59:32,120 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 02:59:32,120 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 02:59:32,120 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 02:59:32,120 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 02:59:32,120 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 02:59:32,121 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 02:59:32,121 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 02:59:32,121 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 02:59:32,121 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 02:59:32,121 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 02:59:32,122 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 02:59:32,122 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 02:59:32,122 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 02:59:32,122 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 02:59:32,122 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 02:59:32,122 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 02:59:32,123 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 02:59:32,123 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 02:59:32,123 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 02:59:32,123 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 02:59:32,123 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 02:59:32,123 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 02:59:32,124 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 02:59:32,124 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 02:59:32,124 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 02:59:32,124 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 02:59:32,124 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 02:59:32,124 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 02:59:32,125 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 02:59:32,125 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 02:59:32,125 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 02:59:32,125 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 02:59:32,125 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 02:59:32,126 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 02:59:32,126 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 02:59:32,126 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 02:59:32,126 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 02:59:32,126 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 02:59:32,126 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 02:59:32,126 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 02:59:32,127 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 02:59:32,127 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 02:59:32,127 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 02:59:32,127 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 02:59:32,127 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 02:59:32,127 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 02:59:32,128 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 02:59:32,128 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 02:59:32,128 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 02:59:32,128 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 02:59:32,128 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 02:59:32,128 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 02:59:32,128 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 02:59:32,129 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 02:59:32,129 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 02:59:32,129 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 02:59:32,129 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 02:59:32,129 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 02:59:32,129 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 02:59:32,130 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 02:59:32,130 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 02:59:32,130 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 02:59:32,130 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 02:59:32,130 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 02:59:32,130 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 02:59:32,131 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 02:59:32,131 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 02:59:32,131 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 02:59:32,131 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 02:59:32,131 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 02:59:32,131 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 02:59:32,131 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 02:59:32,132 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 02:59:32,132 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 02:59:32,132 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 02:59:32,132 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 02:59:32,132 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 02:59:32,132 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 02:59:32,133 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 02:59:32,133 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 02:59:32,133 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 02:59:32,133 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 02:59:32,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 02:59:32,133 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 02:59:32,133 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 02:59:32,134 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 02:59:32,134 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 02:59:32,134 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 02:59:32,134 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 02:59:32,134 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 02:59:32,134 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 02:59:32,135 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 02:59:32,135 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 02:59:32,135 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 02:59:32,135 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 02:59:32,135 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 02:59:32,135 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 02:59:32,135 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 02:59:32,136 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 02:59:32,136 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 02:59:32,136 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 02:59:32,136 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 02:59:32,136 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-15 02:59:32,136 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-15 02:59:32,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 02:59:32,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 02:59:32,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 02:59:32,137 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2019-10-15 02:59:32,137 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2019-10-15 02:59:32,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 02:59:32,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:59:32,138 INFO L130 BoogieDeclarations]: Found specification of procedure dll_insert [2019-10-15 02:59:32,138 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:59:32,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 02:59:32,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 02:59:32,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 02:59:32,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:59:32,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:59:32,595 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-15 02:59:33,402 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:59:33,402 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 02:59:33,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:59:33 BoogieIcfgContainer [2019-10-15 02:59:33,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:59:33,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:59:33,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:59:33,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:59:33,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:59:31" (1/3) ... [2019-10-15 02:59:33,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1782056c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:59:33, skipping insertion in model container [2019-10-15 02:59:33,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:31" (2/3) ... [2019-10-15 02:59:33,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1782056c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:59:33, skipping insertion in model container [2019-10-15 02:59:33,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:59:33" (3/3) ... [2019-10-15 02:59:33,424 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2n_insert_equal.i [2019-10-15 02:59:33,431 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:59:33,438 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:59:33,446 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:59:33,466 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:59:33,466 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:59:33,466 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:59:33,466 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:59:33,466 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:59:33,467 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:59:33,467 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:59:33,467 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:59:33,485 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2019-10-15 02:59:33,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-15 02:59:33,492 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:59:33,493 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:59:33,495 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:59:33,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:59:33,501 INFO L82 PathProgramCache]: Analyzing trace with hash -385306319, now seen corresponding path program 1 times [2019-10-15 02:59:33,511 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:59:33,512 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822773082] [2019-10-15 02:59:33,512 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:33,512 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:33,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:59:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:59:33,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:59:33,967 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822773082] [2019-10-15 02:59:33,968 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:59:33,968 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 02:59:33,969 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272971547] [2019-10-15 02:59:33,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 02:59:33,974 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:59:33,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 02:59:33,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-10-15 02:59:33,994 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 10 states. [2019-10-15 02:59:35,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:59:35,208 INFO L93 Difference]: Finished difference Result 69 states and 84 transitions. [2019-10-15 02:59:35,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 02:59:35,210 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2019-10-15 02:59:35,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:59:35,221 INFO L225 Difference]: With dead ends: 69 [2019-10-15 02:59:35,221 INFO L226 Difference]: Without dead ends: 40 [2019-10-15 02:59:35,225 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2019-10-15 02:59:35,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-10-15 02:59:35,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 32. [2019-10-15 02:59:35,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-10-15 02:59:35,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2019-10-15 02:59:35,268 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 24 [2019-10-15 02:59:35,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:59:35,269 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2019-10-15 02:59:35,269 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 02:59:35,269 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2019-10-15 02:59:35,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-15 02:59:35,271 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:59:35,272 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:59:35,272 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:59:35,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:59:35,273 INFO L82 PathProgramCache]: Analyzing trace with hash -385382486, now seen corresponding path program 1 times [2019-10-15 02:59:35,273 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:59:35,273 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010233849] [2019-10-15 02:59:35,273 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:35,273 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:35,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:59:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:59:35,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:59:35,451 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010233849] [2019-10-15 02:59:35,452 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:59:35,452 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 02:59:35,452 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578465173] [2019-10-15 02:59:35,455 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 02:59:35,455 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:59:35,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 02:59:35,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-15 02:59:35,456 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 8 states. [2019-10-15 02:59:35,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:59:35,762 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2019-10-15 02:59:35,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 02:59:35,763 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2019-10-15 02:59:35,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:59:35,764 INFO L225 Difference]: With dead ends: 55 [2019-10-15 02:59:35,764 INFO L226 Difference]: Without dead ends: 32 [2019-10-15 02:59:35,765 INFO L600 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 [2019-10-15 02:59:35,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-10-15 02:59:35,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2019-10-15 02:59:35,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-10-15 02:59:35,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2019-10-15 02:59:35,772 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 24 [2019-10-15 02:59:35,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:59:35,772 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2019-10-15 02:59:35,773 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 02:59:35,773 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2019-10-15 02:59:35,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-15 02:59:35,774 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:59:35,774 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:59:35,774 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:59:35,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:59:35,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1100710965, now seen corresponding path program 1 times [2019-10-15 02:59:35,775 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:59:35,775 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261166886] [2019-10-15 02:59:35,775 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:35,775 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:35,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:59:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:59:35,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 02:59:35,893 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261166886] [2019-10-15 02:59:35,894 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310735409] [2019-10-15 02:59:35,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:59:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:59:36,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-15 02:59:36,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:59:36,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 02:59:36,143 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:59:36,290 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 02:59:36,291 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1664922340] [2019-10-15 02:59:36,342 INFO L162 IcfgInterpreter]: Started Sifa with 27 locations of interest [2019-10-15 02:59:36,342 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 02:59:36,348 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 02:59:36,355 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 02:59:36,356 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 02:59:36,517 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-10-15 02:59:36,717 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:59:37,040 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:59:37,709 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:59:38,203 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:59:38,217 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:59:38,228 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:59:38,244 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:59:39,234 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 02:59:47,255 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 34 [2019-10-15 02:59:50,500 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 20 [2019-10-15 03:00:02,081 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2019-10-15 03:00:03,492 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2019-10-15 03:00:05,272 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2019-10-15 03:00:06,202 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2019-10-15 03:00:09,072 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2019-10-15 03:00:09,086 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 03:00:09,107 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2019-10-15 03:00:09,195 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2019-10-15 03:00:09,204 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-10-15 03:00:09,217 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2019-10-15 03:00:09,282 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:09,288 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:09,327 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:09,331 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:09,484 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:09,487 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:09,526 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:09,532 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:09,659 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:09,664 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:09,702 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:09,713 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:09,822 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:09,827 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:09,874 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:09,885 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:10,000 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:10,004 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:10,038 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:10,047 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:00:10,089 INFO L199 IcfgInterpreter]: Interpreting procedure dll_insert with input of size 43 for LOIs