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 0.1.24-13a467a-m [2019-10-15 02:59:10,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:59:10,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:59:10,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:59:10,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:59:10,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:59:10,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:59:10,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:59:10,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:59:10,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:59:10,943 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:59:10,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:59:10,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:59:10,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:59:10,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:59:10,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:59:10,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:59:10,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:59:10,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:59:10,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:59:10,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:59:10,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:59:10,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:59:10,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:59:10,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 02:59:10,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 02:59:10,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 02:59:10,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 02:59:10,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 02:59:10,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 02:59:10,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 02:59:10,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 02:59:10,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 02:59:10,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 02:59:10,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 02:59:10,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 02:59:10,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 02:59:10,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 02:59:10,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:59:10,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:59:10,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:59:10,990 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 02:59:11,010 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:59:11,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:59:11,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:59:11,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:59:11,012 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:59:11,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:59:11,013 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:59:11,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:59:11,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:59:11,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:59:11,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:59:11,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:59:11,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:59:11,014 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:59:11,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:59:11,015 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:59:11,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:59:11,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:59:11,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:59:11,016 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:59:11,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:59:11,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:59:11,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:59:11,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:59:11,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:59:11,017 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:59:11,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:59:11,017 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:59:11,018 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 02:59:11,345 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:59:11,366 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:59:11,371 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:59:11,372 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:59:11,373 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:59:11,373 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2c_insert_equal.i [2019-10-15 02:59:11,443 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6c73a9c4/4ad78b02b2f441eba8ca838c5b8813f4/FLAG88a7353a9 [2019-10-15 02:59:11,985 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:59:11,986 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2c_insert_equal.i [2019-10-15 02:59:11,999 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6c73a9c4/4ad78b02b2f441eba8ca838c5b8813f4/FLAG88a7353a9 [2019-10-15 02:59:12,305 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6c73a9c4/4ad78b02b2f441eba8ca838c5b8813f4 [2019-10-15 02:59:12,315 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:59:12,317 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:59:12,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:59:12,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:59:12,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:59:12,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:59:12" (1/1) ... [2019-10-15 02:59:12,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b0f51fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:12, skipping insertion in model container [2019-10-15 02:59:12,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:59:12" (1/1) ... [2019-10-15 02:59:12,334 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:59:12,385 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:59:12,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:59:12,904 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:59:12,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:59:13,040 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:59:13,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:13 WrapperNode [2019-10-15 02:59:13,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:59:13,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:59:13,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:59:13,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:59:13,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:13" (1/1) ... [2019-10-15 02:59:13,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:13" (1/1) ... [2019-10-15 02:59:13,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:13" (1/1) ... [2019-10-15 02:59:13,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:13" (1/1) ... [2019-10-15 02:59:13,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:13" (1/1) ... [2019-10-15 02:59:13,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:13" (1/1) ... [2019-10-15 02:59:13,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:13" (1/1) ... [2019-10-15 02:59:13,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:59:13,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:59:13,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:59:13,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:59:13,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:59:13,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:59:13,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:59:13,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-15 02:59:13,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-15 02:59:13,179 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-15 02:59:13,180 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-15 02:59:13,180 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_create [2019-10-15 02:59:13,180 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_destroy [2019-10-15 02:59:13,180 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_insert [2019-10-15 02:59:13,180 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:59:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:59:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-15 02:59:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-15 02:59:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 02:59:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 02:59:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 02:59:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 02:59:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 02:59:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 02:59:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 02:59:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 02:59:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 02:59:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 02:59:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 02:59:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 02:59:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 02:59:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 02:59:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 02:59:13,184 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 02:59:13,184 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 02:59:13,184 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 02:59:13,184 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 02:59:13,184 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 02:59:13,184 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 02:59:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 02:59:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 02:59:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 02:59:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 02:59:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 02:59:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 02:59:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 02:59:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 02:59:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 02:59:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 02:59:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 02:59:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 02:59:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 02:59:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 02:59:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 02:59:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 02:59:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 02:59:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 02:59:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 02:59:13,187 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 02:59:13,188 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 02:59:13,188 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 02:59:13,188 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 02:59:13,188 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 02:59:13,188 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 02:59:13,188 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 02:59:13,188 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 02:59:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 02:59:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 02:59:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 02:59:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 02:59:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 02:59:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 02:59:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 02:59:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 02:59:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 02:59:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 02:59:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-15 02:59:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 02:59:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 02:59:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-15 02:59:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 02:59:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 02:59:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-15 02:59:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 02:59:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 02:59:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 02:59:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 02:59:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 02:59:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 02:59:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 02:59:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 02:59:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 02:59:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 02:59:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 02:59:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 02:59:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 02:59:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 02:59:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 02:59:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 02:59:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 02:59:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 02:59:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 02:59:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 02:59:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 02:59:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 02:59:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 02:59:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 02:59:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 02:59:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 02:59:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 02:59:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 02:59:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 02:59:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 02:59:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 02:59:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 02:59:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 02:59:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 02:59:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 02:59:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 02:59:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-15 02:59:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 02:59:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-15 02:59:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-15 02:59:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 02:59:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 02:59:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 02:59:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_create [2019-10-15 02:59:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_destroy [2019-10-15 02:59:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 02:59:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:59:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_insert [2019-10-15 02:59:13,206 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:59:13,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 02:59:13,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 02:59:13,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 02:59:13,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:59:13,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:59:13,682 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-15 02:59:15,662 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:59:15,663 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 02:59:15,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:59:15 BoogieIcfgContainer [2019-10-15 02:59:15,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:59:15,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:59:15,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:59:15,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:59:15,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:59:12" (1/3) ... [2019-10-15 02:59:15,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@795b434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:59:15, skipping insertion in model container [2019-10-15 02:59:15,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:59:13" (2/3) ... [2019-10-15 02:59:15,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@795b434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:59:15, skipping insertion in model container [2019-10-15 02:59:15,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:59:15" (3/3) ... [2019-10-15 02:59:15,676 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2c_insert_equal.i [2019-10-15 02:59:15,690 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:59:15,700 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:59:15,714 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:59:15,742 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:59:15,743 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:59:15,743 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:59:15,743 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:59:15,744 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:59:15,744 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:59:15,744 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:59:15,744 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:59:15,767 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2019-10-15 02:59:15,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-15 02:59:15,775 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:59:15,776 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:59:15,778 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:59:15,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:59:15,785 INFO L82 PathProgramCache]: Analyzing trace with hash 850705279, now seen corresponding path program 1 times [2019-10-15 02:59:15,798 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:59:15,799 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453046046] [2019-10-15 02:59:15,799 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:15,799 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:15,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:59:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:59:16,174 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 02:59:16,175 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453046046] [2019-10-15 02:59:16,175 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:59:16,176 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 02:59:16,177 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026137910] [2019-10-15 02:59:16,182 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 02:59:16,182 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:59:16,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 02:59:16,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 02:59:16,200 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2019-10-15 02:59:16,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:59:16,236 INFO L93 Difference]: Finished difference Result 59 states and 71 transitions. [2019-10-15 02:59:16,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 02:59:16,238 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 30 [2019-10-15 02:59:16,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:59:16,248 INFO L225 Difference]: With dead ends: 59 [2019-10-15 02:59:16,249 INFO L226 Difference]: Without dead ends: 31 [2019-10-15 02:59:16,254 INFO L600 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 [2019-10-15 02:59:16,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-15 02:59:16,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-10-15 02:59:16,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-15 02:59:16,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2019-10-15 02:59:16,303 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 30 [2019-10-15 02:59:16,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:59:16,305 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2019-10-15 02:59:16,305 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 02:59:16,305 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2019-10-15 02:59:16,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-15 02:59:16,307 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:59:16,308 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:59:16,308 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:59:16,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:59:16,308 INFO L82 PathProgramCache]: Analyzing trace with hash 850691360, now seen corresponding path program 1 times [2019-10-15 02:59:16,309 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:59:16,309 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26730571] [2019-10-15 02:59:16,309 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:16,309 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:16,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:59:16,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:59:16,498 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 02:59:16,498 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26730571] [2019-10-15 02:59:16,499 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:59:16,499 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 02:59:16,499 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831183447] [2019-10-15 02:59:16,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 02:59:16,501 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:59:16,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 02:59:16,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-15 02:59:16,502 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand 8 states. [2019-10-15 02:59:17,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:59:17,246 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2019-10-15 02:59:17,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 02:59:17,246 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2019-10-15 02:59:17,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:59:17,248 INFO L225 Difference]: With dead ends: 55 [2019-10-15 02:59:17,248 INFO L226 Difference]: Without dead ends: 35 [2019-10-15 02:59:17,249 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 02:59:17,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-10-15 02:59:17,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2019-10-15 02:59:17,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-10-15 02:59:17,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2019-10-15 02:59:17,261 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 30 [2019-10-15 02:59:17,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:59:17,262 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2019-10-15 02:59:17,265 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 02:59:17,265 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2019-10-15 02:59:17,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-15 02:59:17,266 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:59:17,267 INFO L380 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] [2019-10-15 02:59:17,267 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:59:17,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:59:17,267 INFO L82 PathProgramCache]: Analyzing trace with hash 123959918, now seen corresponding path program 1 times [2019-10-15 02:59:17,268 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:59:17,268 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667386868] [2019-10-15 02:59:17,268 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:17,268 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:59:17,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:59:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:59:20,256 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 45 [2019-10-15 02:59:20,607 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 48 [2019-10-15 02:59:23,271 WARN L191 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 272 DAG size of output: 134 [2019-10-15 02:59:24,676 WARN L191 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 231 DAG size of output: 109 [2019-10-15 02:59:27,127 WARN L191 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 166 DAG size of output: 151 [2019-10-15 02:59:27,369 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:59:27,370 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667386868] [2019-10-15 02:59:27,370 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599230577] [2019-10-15 02:59:27,370 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 02:59:27,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:59:27,839 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 139 conjunts are in the unsatisfiable core [2019-10-15 02:59:27,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:59:28,003 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 [2019-10-15 02:59:28,004 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:28,013 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:28,013 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-15 02:59:28,014 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-10-15 02:59:28,246 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 [2019-10-15 02:59:28,247 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:28,256 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:28,256 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-15 02:59:28,257 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:3 [2019-10-15 02:59:28,476 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 [2019-10-15 02:59:28,476 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:28,491 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:28,492 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 02:59:28,492 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2019-10-15 02:59:28,625 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:28,626 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 [2019-10-15 02:59:28,627 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:28,689 INFO L567 ElimStorePlain]: treesize reduction 14, result has 79.7 percent of original size [2019-10-15 02:59:28,689 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-15 02:59:28,690 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:57, output treesize:55 [2019-10-15 02:59:28,831 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:28,833 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:28,837 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:28,844 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_int_183|, |v_#memory_$Pointer$.base_98|], 2=[|v_#memory_int_171|]} [2019-10-15 02:59:28,862 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 [2019-10-15 02:59:28,864 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:28,881 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 [2019-10-15 02:59:28,882 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:29,012 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-10-15 02:59:29,013 INFO L567 ElimStorePlain]: treesize reduction 101, result has 48.7 percent of original size [2019-10-15 02:59:29,021 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 [2019-10-15 02:59:29,021 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:29,054 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:29,061 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 [2019-10-15 02:59:29,061 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:29,090 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:29,091 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. [2019-10-15 02:59:29,092 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:227, output treesize:64 [2019-10-15 02:59:29,299 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_172|, |v_#memory_int_184|], 10=[|v_#memory_$Pointer$.base_99|]} [2019-10-15 02:59:29,315 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 02:59:29,384 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:29,391 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 02:59:29,393 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 [2019-10-15 02:59:29,394 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:29,439 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:29,445 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-15 02:59:29,607 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-10-15 02:59:29,607 INFO L341 Elim1Store]: treesize reduction 27, result has 82.7 percent of original size [2019-10-15 02:59:29,608 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 [2019-10-15 02:59:29,611 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:29,752 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 47 [2019-10-15 02:59:29,752 INFO L567 ElimStorePlain]: treesize reduction 177, result has 41.6 percent of original size [2019-10-15 02:59:29,754 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. [2019-10-15 02:59:29,754 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:172, output treesize:113 [2019-10-15 02:59:31,919 WARN L191 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2019-10-15 02:59:32,277 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 [2019-10-15 02:59:32,278 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:32,322 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:32,323 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|]} [2019-10-15 02:59:32,329 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 [2019-10-15 02:59:32,330 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:32,367 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:32,372 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 [2019-10-15 02:59:32,373 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-15 02:59:32,405 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:32,442 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:32,443 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 [2019-10-15 02:59:32,445 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:32,445 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:32,446 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:32,448 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:32,449 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:32,449 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:32,451 INFO L496 ElimStorePlain]: Start of recursive call 5: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-15 02:59:32,501 INFO L567 ElimStorePlain]: treesize reduction 36, result has 50.0 percent of original size [2019-10-15 02:59:32,503 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. [2019-10-15 02:59:32,503 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:199, output treesize:13 [2019-10-15 02:59:32,675 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 02:59:32,707 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:32,712 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 02:59:32,737 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 02:59:32,738 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. [2019-10-15 02:59:32,738 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:92, output treesize:68 [2019-10-15 02:59:34,011 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 42 [2019-10-15 02:59:35,281 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 48 [2019-10-15 02:59:36,951 WARN L191 SmtUtils]: Spent 1.48 s on a formula simplification that was a NOOP. DAG size: 56 [2019-10-15 02:59:38,520 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification that was a NOOP. DAG size: 60 [2019-10-15 02:59:38,530 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:38,536 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:38,542 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:38,553 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:38,559 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 02:59:38,606 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]} [2019-10-15 02:59:38,615 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 02:59:50,383 WARN L191 SmtUtils]: Spent 11.77 s on a formula simplification. DAG size of input: 259 DAG size of output: 164 [2019-10-15 02:59:50,384 INFO L567 ElimStorePlain]: treesize reduction 5295, result has 19.4 percent of original size [2019-10-15 02:59:50,384 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_int_175| vanished before elimination [2019-10-15 02:59:50,429 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts.