java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --sifa.abstract.domain IntervalDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/forester-heap/dll-circular-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-21 09:11:58,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-21 09:11:58,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-21 09:11:58,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-21 09:11:58,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-21 09:11:58,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-21 09:11:58,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-21 09:11:58,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-21 09:11:58,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-21 09:11:58,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-21 09:11:58,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-21 09:11:58,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-21 09:11:58,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-21 09:11:58,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-21 09:11:58,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-21 09:11:58,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-21 09:11:58,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-21 09:11:58,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-21 09:11:58,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-21 09:11:58,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-21 09:11:58,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-21 09:11:58,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-21 09:11:58,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-21 09:11:58,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-21 09:11:58,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-21 09:11:58,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-21 09:11:58,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-21 09:11:58,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-21 09:11:58,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-21 09:11:58,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-21 09:11:58,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-21 09:11:58,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-21 09:11:58,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-21 09:11:58,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-21 09:11:58,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-21 09:11:58,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-21 09:11:58,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-21 09:11:58,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-21 09:11:58,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-21 09:11:58,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-21 09:11:58,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-21 09:11:58,465 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 [2019-09-21 09:11:58,480 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-21 09:11:58,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-21 09:11:58,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-21 09:11:58,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-21 09:11:58,484 INFO L138 SettingsManager]: * Use SBE=true [2019-09-21 09:11:58,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-21 09:11:58,484 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-21 09:11:58,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-21 09:11:58,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-21 09:11:58,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-21 09:11:58,486 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-21 09:11:58,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-21 09:11:58,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-21 09:11:58,486 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-21 09:11:58,487 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-21 09:11:58,487 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-21 09:11:58,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-21 09:11:58,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-21 09:11:58,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-21 09:11:58,488 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-21 09:11:58,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-21 09:11:58,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-21 09:11:58,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-21 09:11:58,489 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-21 09:11:58,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-21 09:11:58,489 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-21 09:11:58,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-21 09:11:58,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-21 09:11:58,490 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain 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: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-09-21 09:11:58,554 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-21 09:11:58,566 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-21 09:11:58,569 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-21 09:11:58,570 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-21 09:11:58,571 INFO L275 PluginConnector]: CDTParser initialized [2019-09-21 09:11:58,571 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-circular-2.i [2019-09-21 09:11:58,640 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98da798b3/dec3928a31264f20a94692e41bda3701/FLAG99e113990 [2019-09-21 09:11:59,159 INFO L306 CDTParser]: Found 1 translation units. [2019-09-21 09:11:59,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-circular-2.i [2019-09-21 09:11:59,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98da798b3/dec3928a31264f20a94692e41bda3701/FLAG99e113990 [2019-09-21 09:11:59,476 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98da798b3/dec3928a31264f20a94692e41bda3701 [2019-09-21 09:11:59,485 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-21 09:11:59,486 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-21 09:11:59,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-21 09:11:59,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-21 09:11:59,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-21 09:11:59,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 09:11:59" (1/1) ... [2019-09-21 09:11:59,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a3d3672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:11:59, skipping insertion in model container [2019-09-21 09:11:59,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 09:11:59" (1/1) ... [2019-09-21 09:11:59,501 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-21 09:11:59,545 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-21 09:11:59,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 09:11:59,960 INFO L188 MainTranslator]: Completed pre-run [2019-09-21 09:12:00,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-21 09:12:00,089 INFO L192 MainTranslator]: Completed translation [2019-09-21 09:12:00,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:12:00 WrapperNode [2019-09-21 09:12:00,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-21 09:12:00,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-21 09:12:00,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-21 09:12:00,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-21 09:12:00,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:12:00" (1/1) ... [2019-09-21 09:12:00,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:12:00" (1/1) ... [2019-09-21 09:12:00,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:12:00" (1/1) ... [2019-09-21 09:12:00,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:12:00" (1/1) ... [2019-09-21 09:12:00,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:12:00" (1/1) ... [2019-09-21 09:12:00,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:12:00" (1/1) ... [2019-09-21 09:12:00,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:12:00" (1/1) ... [2019-09-21 09:12:00,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-21 09:12:00,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-21 09:12:00,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-21 09:12:00,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-21 09:12:00,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 09:12:00" (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 [2019-09-21 09:12:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-21 09:12:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-21 09:12:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-21 09:12:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-21 09:12:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-21 09:12:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-21 09:12:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-21 09:12:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-21 09:12:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-21 09:12:00,227 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-21 09:12:00,227 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-21 09:12:00,227 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-21 09:12:00,227 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-21 09:12:00,227 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-21 09:12:00,227 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-21 09:12:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-21 09:12:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-21 09:12:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-21 09:12:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-21 09:12:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-21 09:12:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-21 09:12:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-21 09:12:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-21 09:12:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-21 09:12:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-21 09:12:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-21 09:12:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-21 09:12:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-21 09:12:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-21 09:12:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-21 09:12:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-21 09:12:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-21 09:12:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-21 09:12:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-21 09:12:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-21 09:12:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-21 09:12:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-21 09:12:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-21 09:12:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-21 09:12:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-21 09:12:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-21 09:12:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-21 09:12:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-21 09:12:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-21 09:12:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-21 09:12:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-21 09:12:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-21 09:12:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-21 09:12:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-21 09:12:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-21 09:12:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-21 09:12:00,233 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-21 09:12:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-21 09:12:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-21 09:12:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-21 09:12:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-21 09:12:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-21 09:12:00,234 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-21 09:12:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-21 09:12:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-21 09:12:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-21 09:12:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-21 09:12:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-21 09:12:00,235 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-21 09:12:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-21 09:12:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-21 09:12:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-21 09:12:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-21 09:12:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-21 09:12:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-21 09:12:00,236 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-21 09:12:00,237 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-21 09:12:00,237 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-21 09:12:00,237 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-21 09:12:00,237 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-21 09:12:00,237 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-21 09:12:00,237 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-21 09:12:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-21 09:12:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-21 09:12:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-21 09:12:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-21 09:12:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-21 09:12:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-21 09:12:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-21 09:12:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-21 09:12:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-21 09:12:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-21 09:12:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-21 09:12:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-21 09:12:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-21 09:12:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-21 09:12:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-21 09:12:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-21 09:12:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-21 09:12:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-21 09:12:00,240 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-21 09:12:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-21 09:12:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-21 09:12:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-21 09:12:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-21 09:12:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-21 09:12:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-21 09:12:00,241 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-21 09:12:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-21 09:12:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-21 09:12:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-21 09:12:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-21 09:12:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-21 09:12:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-21 09:12:00,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-21 09:12:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-21 09:12:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-21 09:12:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-21 09:12:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-21 09:12:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-21 09:12:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-21 09:12:00,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-21 09:12:00,838 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-21 09:12:00,838 INFO L283 CfgBuilder]: Removed 9 assume(true) statements. [2019-09-21 09:12:00,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 09:12:00 BoogieIcfgContainer [2019-09-21 09:12:00,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-21 09:12:00,842 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-21 09:12:00,842 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-21 09:12:00,842 INFO L275 PluginConnector]: Sifa initialized [2019-09-21 09:12:00,843 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 09:12:00" (1/1) ... [2019-09-21 09:12:00,844 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=IntervalDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_QUICK ♦ Intern Fluid=SizeLimitFluid [2019-09-21 09:12:00,875 INFO L162 IcfgInterpreter]: Started Sifa with 3 locations of interest [2019-09-21 09:12:00,875 INFO L169 IcfgInterpreter]: Building call graph [2019-09-21 09:12:00,885 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-21 09:12:00,900 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-21 09:12:00,902 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-21 09:12:01,053 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 23 for LOIs [2019-09-21 09:12:01,844 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 33 [2019-09-21 09:12:02,908 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-21 09:12:02,909 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-21 09:12:02,911 INFO L193 IcfgInterpreter]: Reachable states at location mainErr2ASSERT_VIOLATIONERROR_FUNCTION satisfy 342#true [2019-09-21 09:12:02,911 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 174#(and (<= 0 main_~x~0.base) (<= main_~x~0.offset 0) (<= main_~x~0.base 0) (<= 0 main_~x~0.offset)) [2019-09-21 09:12:02,911 INFO L193 IcfgInterpreter]: Reachable states at location mainErr1ASSERT_VIOLATIONERROR_FUNCTION satisfy 271#(and (<= 0 main_~x~0.base) (<= main_~x~0.offset 0) (<= main_~x~0.base 0) (<= 0 main_~x~0.offset)) [2019-09-21 09:12:02,930 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-21 09:12:02,931 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-21 09:12:02,932 INFO L168 Benchmark]: Toolchain (without parser) took 3445.94 ms. Allocated memory was 138.4 MB in the beginning and 266.9 MB in the end (delta: 128.5 MB). Free memory was 83.5 MB in the beginning and 175.1 MB in the end (delta: -91.6 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. [2019-09-21 09:12:02,933 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 103.2 MB in the beginning and 103.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-21 09:12:02,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 603.12 ms. Allocated memory was 138.4 MB in the beginning and 198.2 MB in the end (delta: 59.8 MB). Free memory was 83.3 MB in the beginning and 163.9 MB in the end (delta: -80.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2019-09-21 09:12:02,934 INFO L168 Benchmark]: Boogie Preprocessor took 80.37 ms. Allocated memory is still 198.2 MB. Free memory was 163.9 MB in the beginning and 161.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-09-21 09:12:02,934 INFO L168 Benchmark]: RCFGBuilder took 670.10 ms. Allocated memory is still 198.2 MB. Free memory was 160.8 MB in the beginning and 113.5 MB in the end (delta: 47.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 7.1 GB. [2019-09-21 09:12:02,934 INFO L168 Benchmark]: Sifa took 2089.04 ms. Allocated memory was 198.2 MB in the beginning and 266.9 MB in the end (delta: 68.7 MB). Free memory was 113.5 MB in the beginning and 175.1 MB in the end (delta: -61.6 MB). Peak memory consumption was 7.1 MB. Max. memory is 7.1 GB. [2019-09-21 09:12:02,936 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 103.2 MB in the beginning and 103.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 603.12 ms. Allocated memory was 138.4 MB in the beginning and 198.2 MB in the end (delta: 59.8 MB). Free memory was 83.3 MB in the beginning and 163.9 MB in the end (delta: -80.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 80.37 ms. Allocated memory is still 198.2 MB. Free memory was 163.9 MB in the beginning and 161.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 670.10 ms. Allocated memory is still 198.2 MB. Free memory was 160.8 MB in the beginning and 113.5 MB in the end (delta: 47.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 7.1 GB. * Sifa took 2089.04 ms. Allocated memory was 198.2 MB in the beginning and 266.9 MB in the end (delta: 68.7 MB). Free memory was 113.5 MB in the beginning and 175.1 MB in the end (delta: -61.6 MB). Peak memory consumption was 7.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 2037, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 290, DAG_INTERPRETER_EARLY_EXITS: 15, TOOLS_POST_APPLICATIONS: 233, TOOLS_POST_TIME[ms]: 1583, TOOLS_POST_CALL_APPLICATIONS: 2, TOOLS_POST_CALL_TIME[ms]: 15, TOOLS_POST_RETURN_APPLICATIONS: 1, TOOLS_POST_RETURN_TIME[ms]: 1, TOOLS_QUANTIFIERELIM_APPLICATIONS: 226, TOOLS_QUANTIFIERELIM_TIME[ms]: 1556, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 497, FLUID_QUERY_TIME[ms]: 9, FLUID_QUERIES: 316, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 103, DOMAIN_JOIN_TIME[ms]: 86, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 1, DOMAIN_ISSUBSETEQ_APPLICATIONS: 26, DOMAIN_ISSUBSETEQ_TIME[ms]: 5, DOMAIN_ISBOTTOM_APPLICATIONS: 83, DOMAIN_ISBOTTOM_TIME[ms]: 172, LOOP_SUMMARIZER_APPLICATIONS: 25, LOOP_SUMMARIZER_CACHE_MISSES: 25, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 1214, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 1211, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 26, CALL_SUMMARIZER_APPLICATIONS: 1, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME[ms]: 97, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 97, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 5, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 68, DAG_COMPRESSION_PROCESSED_NODES: 864, DAG_COMPRESSION_RETAINED_NODES: 301 - UnprovableResult [Line: 1024]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 342#true. Possible FailurePath: - UnprovableResult [Line: 1015]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 174#(and (<= 0 main_~x~0.base) (<= main_~x~0.offset 0) (<= main_~x~0.base 0) (<= 0 main_~x~0.offset)). Possible FailurePath: - UnprovableResult [Line: 1020]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 271#(and (<= 0 main_~x~0.base) (<= main_~x~0.offset 0) (<= main_~x~0.base 0) (<= 0 main_~x~0.offset)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...