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/ldv-regression/fo_test.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 02:55:55,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:55:55,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:55:55,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:55:55,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:55:55,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:55:55,415 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:55:55,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:55:55,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:55:55,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:55:55,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:55:55,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:55:55,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:55:55,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:55:55,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:55:55,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:55:55,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:55:55,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:55:55,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:55:55,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:55:55,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:55:55,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:55:55,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:55:55,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:55:55,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 02:55:55,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 02:55:55,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 02:55:55,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 02:55:55,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 02:55:55,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 02:55:55,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 02:55:55,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 02:55:55,467 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 02:55:55,468 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 02:55:55,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 02:55:55,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 02:55:55,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 02:55:55,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 02:55:55,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:55:55,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:55:55,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:55:55,479 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 02:55:55,498 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:55:55,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:55:55,499 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:55:55,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:55:55,500 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:55:55,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:55:55,500 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:55:55,500 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:55:55,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:55:55,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:55:55,501 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:55:55,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:55:55,501 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:55:55,502 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:55:55,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:55:55,502 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:55:55,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:55:55,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:55:55,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:55:55,503 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:55:55,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:55:55,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:55:55,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:55:55,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:55:55,504 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:55:55,504 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:55:55,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:55:55,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:55:55,505 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 02:55:55,808 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:55:55,823 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:55:55,827 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:55:55,829 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:55:55,829 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:55:55,830 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/fo_test.i [2019-10-15 02:55:55,892 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c4032ca9/5da56aa0addb4d6eba32c2702ed7ea62/FLAGe92a83518 [2019-10-15 02:55:56,424 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:55:56,429 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/fo_test.i [2019-10-15 02:55:56,455 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c4032ca9/5da56aa0addb4d6eba32c2702ed7ea62/FLAGe92a83518 [2019-10-15 02:55:56,744 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c4032ca9/5da56aa0addb4d6eba32c2702ed7ea62 [2019-10-15 02:55:56,755 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:55:56,756 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:55:56,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:55:56,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:55:56,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:55:56,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:55:56" (1/1) ... [2019-10-15 02:55:56,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21fa86fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:56, skipping insertion in model container [2019-10-15 02:55:56,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:55:56" (1/1) ... [2019-10-15 02:55:56,773 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:55:56,825 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:55:57,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:55:57,274 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:55:57,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:55:57,408 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:55:57,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:57 WrapperNode [2019-10-15 02:55:57,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:55:57,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:55:57,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:55:57,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:55:57,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:57" (1/1) ... [2019-10-15 02:55:57,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:57" (1/1) ... [2019-10-15 02:55:57,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:57" (1/1) ... [2019-10-15 02:55:57,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:57" (1/1) ... [2019-10-15 02:55:57,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:57" (1/1) ... [2019-10-15 02:55:57,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:57" (1/1) ... [2019-10-15 02:55:57,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:57" (1/1) ... [2019-10-15 02:55:57,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:55:57,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:55:57,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:55:57,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:55:57,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:57" (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 02:55:57,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:55:57,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:55:57,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2019-10-15 02:55:57,544 INFO L138 BoogieDeclarations]: Found implementation of procedure open [2019-10-15 02:55:57,544 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:55:57,545 INFO L138 BoogieDeclarations]: Found implementation of procedure l_read [2019-10-15 02:55:57,545 INFO L138 BoogieDeclarations]: Found implementation of procedure l_open [2019-10-15 02:55:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:55:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-15 02:55:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-15 02:55:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-15 02:55:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-15 02:55:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-15 02:55:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-15 02:55:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-15 02:55:57,546 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-15 02:55:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-15 02:55:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-15 02:55:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-15 02:55:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-15 02:55:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-15 02:55:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-15 02:55:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-15 02:55:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-15 02:55:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-15 02:55:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-15 02:55:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-15 02:55:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-15 02:55:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-15 02:55:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-15 02:55:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-15 02:55:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-15 02:55:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-15 02:55:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-15 02:55:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-15 02:55:57,549 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-15 02:55:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-15 02:55:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-15 02:55:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-15 02:55:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-15 02:55:57,550 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-15 02:55:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-15 02:55:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-15 02:55:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-15 02:55:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-15 02:55:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-15 02:55:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-15 02:55:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-15 02:55:57,551 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-15 02:55:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-15 02:55:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-15 02:55:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-15 02:55:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-15 02:55:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-15 02:55:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-15 02:55:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-15 02:55:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-15 02:55:57,552 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-15 02:55:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 02:55:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 02:55:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-15 02:55:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 02:55:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-15 02:55:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-15 02:55:57,553 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-15 02:55:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-15 02:55:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-15 02:55:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-15 02:55:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-15 02:55:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 02:55:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-15 02:55:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-15 02:55:57,554 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2019-10-15 02:55:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-15 02:55:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-15 02:55:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-15 02:55:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-15 02:55:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-15 02:55:57,555 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-15 02:55:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-15 02:55:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-15 02:55:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-15 02:55:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-15 02:55:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-15 02:55:57,556 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-15 02:55:57,557 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-15 02:55:57,557 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-15 02:55:57,557 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-15 02:55:57,557 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-15 02:55:57,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-15 02:55:57,557 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-15 02:55:57,557 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-15 02:55:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-15 02:55:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-15 02:55:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-15 02:55:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-15 02:55:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-15 02:55:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-15 02:55:57,558 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-15 02:55:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-15 02:55:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-15 02:55:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-15 02:55:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-15 02:55:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-15 02:55:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-15 02:55:57,559 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-15 02:55:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-15 02:55:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2019-10-15 02:55:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-15 02:55:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2019-10-15 02:55:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2019-10-15 02:55:57,560 INFO L130 BoogieDeclarations]: Found specification of procedure fstat [2019-10-15 02:55:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure fstatat [2019-10-15 02:55:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure lstat [2019-10-15 02:55:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure chmod [2019-10-15 02:55:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure lchmod [2019-10-15 02:55:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure fchmod [2019-10-15 02:55:57,561 INFO L130 BoogieDeclarations]: Found specification of procedure fchmodat [2019-10-15 02:55:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure umask [2019-10-15 02:55:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure mkdir [2019-10-15 02:55:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure mkdirat [2019-10-15 02:55:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure mknod [2019-10-15 02:55:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure mknodat [2019-10-15 02:55:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifo [2019-10-15 02:55:57,562 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifoat [2019-10-15 02:55:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure utimensat [2019-10-15 02:55:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure futimens [2019-10-15 02:55:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstat [2019-10-15 02:55:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure __xstat [2019-10-15 02:55:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure __lxstat [2019-10-15 02:55:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstatat [2019-10-15 02:55:57,563 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknod [2019-10-15 02:55:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknodat [2019-10-15 02:55:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure fcntl [2019-10-15 02:55:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure open [2019-10-15 02:55:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure openat [2019-10-15 02:55:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure openat64 [2019-10-15 02:55:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure creat [2019-10-15 02:55:57,564 INFO L130 BoogieDeclarations]: Found specification of procedure lockf [2019-10-15 02:55:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fadvise [2019-10-15 02:55:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fallocate [2019-10-15 02:55:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-10-15 02:55:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 02:55:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure l_read [2019-10-15 02:55:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure l_open [2019-10-15 02:55:57,565 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:55:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 02:55:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 02:55:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:55:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:55:57,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:55:58,159 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:55:58,159 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 02:55:58,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:55:58 BoogieIcfgContainer [2019-10-15 02:55:58,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:55:58,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:55:58,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:55:58,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:55:58,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:55:56" (1/3) ... [2019-10-15 02:55:58,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4366d0b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:55:58, skipping insertion in model container [2019-10-15 02:55:58,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:55:57" (2/3) ... [2019-10-15 02:55:58,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4366d0b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:55:58, skipping insertion in model container [2019-10-15 02:55:58,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:55:58" (3/3) ... [2019-10-15 02:55:58,170 INFO L109 eAbstractionObserver]: Analyzing ICFG fo_test.i [2019-10-15 02:55:58,181 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:55:58,190 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:55:58,202 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:55:58,228 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:55:58,228 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:55:58,228 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:55:58,228 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:55:58,229 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:55:58,229 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:55:58,229 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:55:58,229 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:55:58,248 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-10-15 02:55:58,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-15 02:55:58,255 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:55:58,256 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:55:58,258 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:55:58,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:55:58,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1869470221, now seen corresponding path program 1 times [2019-10-15 02:55:58,274 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:55:58,274 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466306745] [2019-10-15 02:55:58,275 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:55:58,275 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:55:58,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:55:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-15 02:55:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-15 02:55:58,480 INFO L168 tionRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-10-15 02:55:58,481 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-15 02:55:58,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 02:55:58 BoogieIcfgContainer [2019-10-15 02:55:58,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 02:55:58,522 INFO L168 Benchmark]: Toolchain (without parser) took 1764.02 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 103.2 MB in the beginning and 100.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 66.2 MB. Max. memory is 7.1 GB. [2019-10-15 02:55:58,523 INFO L168 Benchmark]: CDTParser took 1.25 ms. Allocated memory is still 140.5 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 02:55:58,524 INFO L168 Benchmark]: CACSL2BoogieTranslator took 651.78 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.9 MB in the beginning and 167.9 MB in the end (delta: -64.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2019-10-15 02:55:58,525 INFO L168 Benchmark]: Boogie Preprocessor took 66.77 ms. Allocated memory is still 204.5 MB. Free memory was 167.9 MB in the beginning and 165.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-10-15 02:55:58,526 INFO L168 Benchmark]: RCFGBuilder took 684.47 ms. Allocated memory is still 204.5 MB. Free memory was 165.3 MB in the beginning and 117.0 MB in the end (delta: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 7.1 GB. [2019-10-15 02:55:58,527 INFO L168 Benchmark]: TraceAbstraction took 356.03 ms. Allocated memory is still 204.5 MB. Free memory was 116.4 MB in the beginning and 100.9 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. [2019-10-15 02:55:58,531 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.25 ms. Allocated memory is still 140.5 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 651.78 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.9 MB in the beginning and 167.9 MB in the end (delta: -64.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 66.77 ms. Allocated memory is still 204.5 MB. Free memory was 167.9 MB in the beginning and 165.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 684.47 ms. Allocated memory is still 204.5 MB. Free memory was 165.3 MB in the beginning and 117.0 MB in the end (delta: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 356.03 ms. Allocated memory is still 204.5 MB. Free memory was 116.4 MB in the beginning and 100.9 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 960]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 1158. Possible FailurePath: [L1152] int globalState = 0; [L1158] CALL, EXPR l_open("unknown",00) VAL [\old(flags)=0, \old(globalState)=0, file={-1:0}, globalState=0] [L1170] int fd = open(file,flags); [L1171] COND FALSE !(fd>0) [L1172] return fd; [L1158] RET, EXPR l_open("unknown",00) VAL [\old(argc)=106, \old(globalState)=0, argc=106, argv={104:101}, argv={104:101}, globalState=0, l_open("unknown",00)=0] [L1158] int file = l_open("unknown",00); [L1159] void* cbuf = (void*) malloc(sizeof(char)*100); VAL [\old(argc)=106, \old(globalState)=0, argc=106, argv={104:101}, argv={104:101}, cbuf={1:0}, file=0, globalState=0, malloc(sizeof(char)*100)={1:0}] [L1160] CALL l_read(file,cbuf,99) VAL [\old(count)=99, \old(fd)=0, \old(globalState)=0, cbuf={1:0}, globalState=0] [L1165] (globalState == 1) ? (0) : __blast_assert () VAL [\old(count)=99, \old(fd)=0, \old(globalState)=0, cbuf={1:0}, cbuf={1:0}, count=99, fd=0, globalState=0] [L1165] CALL __blast_assert () VAL [\old(globalState)=0, globalState=0] [L960] __VERIFIER_error() VAL [\old(globalState)=0, globalState=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 24 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...