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 -i ../../../trunk/examples/svcomp/list-properties/alternating_list-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-06 08:56:58,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-06 08:56:58,103 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-06 08:56:58,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-06 08:56:58,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-06 08:56:58,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-06 08:56:58,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-06 08:56:58,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-06 08:56:58,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-06 08:56:58,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-06 08:56:58,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-06 08:56:58,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-06 08:56:58,124 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-06 08:56:58,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-06 08:56:58,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-06 08:56:58,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-06 08:56:58,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-06 08:56:58,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-06 08:56:58,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-06 08:56:58,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-06 08:56:58,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-06 08:56:58,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-06 08:56:58,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-06 08:56:58,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-06 08:56:58,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-06 08:56:58,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-06 08:56:58,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-06 08:56:58,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-06 08:56:58,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-06 08:56:58,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-06 08:56:58,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-06 08:56:58,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-06 08:56:58,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-06 08:56:58,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-06 08:56:58,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-06 08:56:58,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-06 08:56:58,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-06 08:56:58,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-06 08:56:58,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-06 08:56:58,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-06 08:56:58,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-06 08:56:58,149 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 [2019-09-06 08:56:58,163 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-06 08:56:58,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-06 08:56:58,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-06 08:56:58,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-06 08:56:58,165 INFO L138 SettingsManager]: * Use SBE=true [2019-09-06 08:56:58,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-06 08:56:58,166 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-06 08:56:58,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-06 08:56:58,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-06 08:56:58,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-06 08:56:58,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-06 08:56:58,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-06 08:56:58,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-06 08:56:58,167 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-06 08:56:58,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-06 08:56:58,167 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-06 08:56:58,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-06 08:56:58,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-06 08:56:58,168 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-06 08:56:58,168 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-06 08:56:58,168 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-06 08:56:58,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-06 08:56:58,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-06 08:56:58,169 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-06 08:56:58,169 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-06 08:56:58,170 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-06 08:56:58,170 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-06 08:56:58,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-06 08:56:58,170 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2019-09-06 08:56:58,208 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-06 08:56:58,219 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-06 08:56:58,223 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-06 08:56:58,224 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-06 08:56:58,225 INFO L275 PluginConnector]: CDTParser initialized [2019-09-06 08:56:58,225 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/alternating_list-2.i [2019-09-06 08:56:58,297 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d2e4be73/8965e41edb80455792d1273e2b13d1b0/FLAG3bec1a4c1 [2019-09-06 08:56:58,818 INFO L306 CDTParser]: Found 1 translation units. [2019-09-06 08:56:58,819 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/alternating_list-2.i [2019-09-06 08:56:58,831 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d2e4be73/8965e41edb80455792d1273e2b13d1b0/FLAG3bec1a4c1 [2019-09-06 08:56:59,126 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d2e4be73/8965e41edb80455792d1273e2b13d1b0 [2019-09-06 08:56:59,136 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-06 08:56:59,138 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-06 08:56:59,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-06 08:56:59,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-06 08:56:59,143 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-06 08:56:59,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.09 08:56:59" (1/1) ... [2019-09-06 08:56:59,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32a9b046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 08:56:59, skipping insertion in model container [2019-09-06 08:56:59,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.09 08:56:59" (1/1) ... [2019-09-06 08:56:59,152 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-06 08:56:59,206 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-06 08:56:59,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-06 08:56:59,624 INFO L188 MainTranslator]: Completed pre-run [2019-09-06 08:56:59,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-06 08:56:59,724 INFO L192 MainTranslator]: Completed translation [2019-09-06 08:56:59,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 08:56:59 WrapperNode [2019-09-06 08:56:59,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-06 08:56:59,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-06 08:56:59,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-06 08:56:59,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-06 08:56:59,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 08:56:59" (1/1) ... [2019-09-06 08:56:59,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 08:56:59" (1/1) ... [2019-09-06 08:56:59,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 08:56:59" (1/1) ... [2019-09-06 08:56:59,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 08:56:59" (1/1) ... [2019-09-06 08:56:59,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 08:56:59" (1/1) ... [2019-09-06 08:56:59,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 08:56:59" (1/1) ... [2019-09-06 08:56:59,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 08:56:59" (1/1) ... [2019-09-06 08:56:59,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-06 08:56:59,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-06 08:56:59,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-06 08:56:59,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-06 08:56:59,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.09 08:56:59" (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 [2019-09-06 08:56:59,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-06 08:56:59,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-06 08:56:59,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-06 08:56:59,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-06 08:56:59,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-09-06 08:56:59,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-09-06 08:56:59,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-09-06 08:56:59,852 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-09-06 08:56:59,852 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-06 08:56:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-06 08:56:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-06 08:56:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-06 08:56:59,852 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-06 08:56:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-06 08:56:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-06 08:56:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-06 08:56:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-06 08:56:59,853 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-06 08:56:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-06 08:56:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-06 08:56:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-06 08:56:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-06 08:56:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-06 08:56:59,854 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-06 08:56:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-06 08:56:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-06 08:56:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-06 08:56:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-06 08:56:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-06 08:56:59,855 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-09-06 08:56:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-09-06 08:56:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-09-06 08:56:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-06 08:56:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-06 08:56:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-06 08:56:59,856 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-06 08:56:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-06 08:56:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-06 08:56:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-06 08:56:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-06 08:56:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-06 08:56:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-06 08:56:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-06 08:56:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-06 08:56:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-06 08:56:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-06 08:56:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-06 08:56:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-06 08:56:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-06 08:56:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-06 08:56:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-06 08:56:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-06 08:56:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-06 08:56:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-06 08:56:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-06 08:56:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-06 08:56:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-06 08:56:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-06 08:56:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-06 08:56:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-06 08:56:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-06 08:56:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-06 08:56:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-06 08:56:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-06 08:56:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-06 08:56:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-06 08:56:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-06 08:56:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-06 08:56:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-06 08:56:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-06 08:56:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-06 08:56:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-06 08:56:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-06 08:56:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-06 08:56:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-06 08:56:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-06 08:56:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-06 08:56:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-06 08:56:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-06 08:56:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-06 08:56:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-06 08:56:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-06 08:56:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-06 08:56:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-06 08:56:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-06 08:56:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-06 08:56:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-06 08:56:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-06 08:56:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-06 08:56:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-06 08:56:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-06 08:56:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-06 08:56:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-06 08:56:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-06 08:56:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-06 08:56:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-06 08:56:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-06 08:56:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-06 08:56:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-06 08:56:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-06 08:56:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-06 08:56:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-06 08:56:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-06 08:56:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-06 08:56:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-06 08:56:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-06 08:56:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-06 08:56:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-06 08:56:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-06 08:56:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-06 08:56:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-06 08:56:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-06 08:56:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-06 08:56:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-06 08:56:59,869 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-06 08:56:59,869 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-06 08:56:59,869 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-06 08:56:59,869 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-06 08:56:59,869 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-09-06 08:56:59,869 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-06 08:56:59,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-06 08:56:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-06 08:56:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-06 08:56:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-06 08:56:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-06 08:56:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-06 08:56:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-06 08:56:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-06 08:57:00,207 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-09-06 08:57:00,377 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-06 08:57:00,378 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-09-06 08:57:00,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.09 08:57:00 BoogieIcfgContainer [2019-09-06 08:57:00,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-06 08:57:00,380 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-06 08:57:00,381 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-06 08:57:00,381 INFO L275 PluginConnector]: Sifa initialized [2019-09-06 08:57:00,382 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.09 08:57:00" (1/1) ... [2019-09-06 08:57:00,383 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=ReUseSupersetCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=NONE ♦ Intern Fluid=SizeLimitFluid [2019-09-06 08:57:00,408 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-06 08:57:00,409 INFO L169 IcfgInterpreter]: Building call graph [2019-09-06 08:57:00,419 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-06 08:57:00,433 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-06 08:57:00,435 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-06 08:57:00,517 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 23 for LOIs [2019-09-06 08:57:00,568 WARN L98 DagInterpreter]: A function never reaches its return [2019-09-06 08:57:01,807 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-06 08:57:01,808 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-06 08:57:01,810 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 164#(or (and (<= 0 main_~flag~0) (<= main_~flag~0 0)) (and (<= 1 main_~flag~0) (<= main_~flag~0 1))) [2019-09-06 08:57:01,820 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-06 08:57:01,821 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-06 08:57:01,822 INFO L168 Benchmark]: Toolchain (without parser) took 2684.53 ms. Allocated memory was 134.7 MB in the beginning and 229.1 MB in the end (delta: 94.4 MB). Free memory was 89.7 MB in the beginning and 108.0 MB in the end (delta: -18.3 MB). Peak memory consumption was 76.1 MB. Max. memory is 7.1 GB. [2019-09-06 08:57:01,823 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 134.7 MB. Free memory was 109.1 MB in the beginning and 108.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-09-06 08:57:01,823 INFO L168 Benchmark]: CACSL2BoogieTranslator took 586.10 ms. Allocated memory was 134.7 MB in the beginning and 201.3 MB in the end (delta: 66.6 MB). Free memory was 89.5 MB in the beginning and 165.5 MB in the end (delta: -76.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2019-09-06 08:57:01,824 INFO L168 Benchmark]: Boogie Preprocessor took 60.74 ms. Allocated memory is still 201.3 MB. Free memory was 165.5 MB in the beginning and 162.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2019-09-06 08:57:01,824 INFO L168 Benchmark]: RCFGBuilder took 592.98 ms. Allocated memory is still 201.3 MB. Free memory was 162.2 MB in the beginning and 119.7 MB in the end (delta: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. [2019-09-06 08:57:01,825 INFO L168 Benchmark]: Sifa took 1440.47 ms. Allocated memory was 201.3 MB in the beginning and 229.1 MB in the end (delta: 27.8 MB). Free memory was 119.7 MB in the beginning and 108.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 39.5 MB. Max. memory is 7.1 GB. [2019-09-06 08:57:01,827 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 134.7 MB. Free memory was 109.1 MB in the beginning and 108.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 586.10 ms. Allocated memory was 134.7 MB in the beginning and 201.3 MB in the end (delta: 66.6 MB). Free memory was 89.5 MB in the beginning and 165.5 MB in the end (delta: -76.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.74 ms. Allocated memory is still 201.3 MB. Free memory was 165.5 MB in the beginning and 162.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 592.98 ms. Allocated memory is still 201.3 MB. Free memory was 162.2 MB in the beginning and 119.7 MB in the end (delta: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. * Sifa took 1440.47 ms. Allocated memory was 201.3 MB in the beginning and 229.1 MB in the end (delta: 27.8 MB). Free memory was 119.7 MB in the beginning and 108.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 39.5 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]: 1402, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 119, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 100, TOOLS_POST_TIME[ms]: 1084, TOOLS_POST_CALL_APPLICATIONS: 9, TOOLS_POST_CALL_TIME[ms]: 36, TOOLS_POST_RETURN_APPLICATIONS: 8, TOOLS_POST_RETURN_TIME[ms]: 7, TOOLS_QUANTIFIERELIM_TIME[ms]: 1082, FLUID_QUERY_TIME[ms]: 8, FLUID_QUERIES: 127, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 35, DOMAIN_JOIN_TIME[ms]: 61, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME[ms]: 4, DOMAIN_ISSUBSETEQ_APPLICATIONS: 14, DOMAIN_ISSUBSETEQ_TIME[ms]: 17, DOMAIN_ISBOTTOM_APPLICATIONS: 25, DOMAIN_ISBOTTOM_TIME[ms]: 53, LOOP_SUMMARIZER_APPLICATIONS: 4, LOOP_SUMMARIZER_CACHE_MISSES: 4, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 953, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 952, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 8, CALL_SUMMARIZER_APPLICATIONS: 8, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 30, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 5, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 46, DAG_COMPRESSION_PROCESSED_NODES: 459, DAG_COMPRESSION_RETAINED_NODES: 201 - UnprovableResult [Line: 562]: 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 164#(or (and (<= 0 main_~flag~0) (<= main_~flag~0 0)) (and (<= 1 main_~flag~0) (<= main_~flag~0 1))). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...