/usr/bin/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 -i ../../../trunk/examples/svcomp/ldv-sets/test_add-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 16:48:04,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 16:48:04,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 16:48:04,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 16:48:04,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 16:48:04,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 16:48:04,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 16:48:04,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 16:48:04,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 16:48:04,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 16:48:04,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 16:48:04,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 16:48:04,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 16:48:04,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 16:48:04,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 16:48:04,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 16:48:04,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 16:48:04,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 16:48:04,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 16:48:04,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 16:48:04,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 16:48:04,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 16:48:04,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 16:48:04,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 16:48:04,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 16:48:04,964 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 16:48:04,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 16:48:04,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 16:48:04,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 16:48:04,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 16:48:04,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 16:48:04,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 16:48:04,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 16:48:04,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 16:48:04,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 16:48:04,973 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 16:48:04,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 16:48:04,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 16:48:04,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 16:48:04,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 16:48:04,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 16:48:04,977 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 [2020-08-22 16:48:05,016 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 16:48:05,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 16:48:05,019 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 16:48:05,019 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 16:48:05,019 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 16:48:05,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 16:48:05,020 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 16:48:05,020 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 16:48:05,020 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 16:48:05,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 16:48:05,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 16:48:05,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 16:48:05,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 16:48:05,022 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 16:48:05,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 16:48:05,023 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 16:48:05,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 16:48:05,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 16:48:05,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 16:48:05,023 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 16:48:05,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 16:48:05,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:48:05,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 16:48:05,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 16:48:05,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 16:48:05,025 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 16:48:05,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 16:48:05,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 16:48:05,025 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 16:48:05,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 16:48:05,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 16:48:05,313 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 16:48:05,317 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 16:48:05,318 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 16:48:05,318 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 16:48:05,319 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-08-22 16:48:05,377 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5675745b/f07c74779a3a4585aae51eeb198109bd/FLAG5636ff121 [2020-08-22 16:48:05,963 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 16:48:05,964 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-08-22 16:48:05,985 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5675745b/f07c74779a3a4585aae51eeb198109bd/FLAG5636ff121 [2020-08-22 16:48:06,246 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5675745b/f07c74779a3a4585aae51eeb198109bd [2020-08-22 16:48:06,253 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 16:48:06,255 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 16:48:06,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 16:48:06,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 16:48:06,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 16:48:06,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:48:06" (1/1) ... [2020-08-22 16:48:06,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5702e8ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:48:06, skipping insertion in model container [2020-08-22 16:48:06,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:48:06" (1/1) ... [2020-08-22 16:48:06,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 16:48:06,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 16:48:06,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:48:06,766 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 16:48:06,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:48:06,887 INFO L208 MainTranslator]: Completed translation [2020-08-22 16:48:06,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:48:06 WrapperNode [2020-08-22 16:48:06,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 16:48:06,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 16:48:06,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 16:48:06,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 16:48:06,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:48:06" (1/1) ... [2020-08-22 16:48:06,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:48:06" (1/1) ... [2020-08-22 16:48:06,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:48:06" (1/1) ... [2020-08-22 16:48:06,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:48:06" (1/1) ... [2020-08-22 16:48:06,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:48:06" (1/1) ... [2020-08-22 16:48:06,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:48:06" (1/1) ... [2020-08-22 16:48:06,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:48:06" (1/1) ... [2020-08-22 16:48:06,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 16:48:06,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 16:48:06,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 16:48:06,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 16:48:06,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:48:06" (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 [2020-08-22 16:48:07,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 16:48:07,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 16:48:07,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-08-22 16:48:07,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-08-22 16:48:07,017 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-22 16:48:07,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-22 16:48:07,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-08-22 16:48:07,017 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-08-22 16:48:07,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-08-22 16:48:07,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-08-22 16:48:07,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-08-22 16:48:07,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-08-22 16:48:07,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-08-22 16:48:07,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-08-22 16:48:07,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-08-22 16:48:07,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-08-22 16:48:07,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-08-22 16:48:07,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-08-22 16:48:07,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-08-22 16:48:07,021 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-08-22 16:48:07,022 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 16:48:07,022 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-08-22 16:48:07,022 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-08-22 16:48:07,022 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-22 16:48:07,022 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-22 16:48:07,022 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-22 16:48:07,023 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-22 16:48:07,023 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-22 16:48:07,023 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-22 16:48:07,023 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-22 16:48:07,023 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-22 16:48:07,023 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-22 16:48:07,023 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-22 16:48:07,024 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-22 16:48:07,024 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-22 16:48:07,024 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-22 16:48:07,024 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-22 16:48:07,024 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-22 16:48:07,024 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-22 16:48:07,025 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-22 16:48:07,025 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-22 16:48:07,025 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-22 16:48:07,025 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-22 16:48:07,025 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-22 16:48:07,025 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-22 16:48:07,025 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-22 16:48:07,026 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-22 16:48:07,026 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-22 16:48:07,026 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-22 16:48:07,026 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-22 16:48:07,026 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-22 16:48:07,026 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-22 16:48:07,026 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-22 16:48:07,027 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-22 16:48:07,027 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-22 16:48:07,027 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-22 16:48:07,027 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-22 16:48:07,027 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-22 16:48:07,027 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-22 16:48:07,028 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-22 16:48:07,028 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-22 16:48:07,028 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-22 16:48:07,028 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-22 16:48:07,028 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-22 16:48:07,028 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-22 16:48:07,028 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-22 16:48:07,029 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-22 16:48:07,029 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-22 16:48:07,029 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-22 16:48:07,029 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-22 16:48:07,029 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-22 16:48:07,029 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-22 16:48:07,030 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-22 16:48:07,030 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 16:48:07,030 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-22 16:48:07,030 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-22 16:48:07,030 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 16:48:07,032 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-22 16:48:07,032 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-22 16:48:07,032 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-22 16:48:07,032 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-22 16:48:07,032 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 16:48:07,032 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-22 16:48:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-22 16:48:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 16:48:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-22 16:48:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-22 16:48:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-22 16:48:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-22 16:48:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-22 16:48:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-22 16:48:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-22 16:48:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-22 16:48:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-22 16:48:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-22 16:48:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-22 16:48:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-22 16:48:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-22 16:48:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-22 16:48:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-22 16:48:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-22 16:48:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-22 16:48:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-22 16:48:07,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-22 16:48:07,036 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-22 16:48:07,036 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-22 16:48:07,036 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-22 16:48:07,036 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-22 16:48:07,036 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-22 16:48:07,036 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-22 16:48:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-22 16:48:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-22 16:48:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-22 16:48:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-22 16:48:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-22 16:48:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-22 16:48:07,037 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-22 16:48:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-22 16:48:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-22 16:48:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-22 16:48:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-22 16:48:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-08-22 16:48:07,038 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-22 16:48:07,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 16:48:07,039 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-22 16:48:07,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 16:48:07,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-22 16:48:07,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 16:48:07,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-08-22 16:48:07,039 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-08-22 16:48:07,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 16:48:07,040 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-08-22 16:48:07,040 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-08-22 16:48:07,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-08-22 16:48:07,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 16:48:07,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-08-22 16:48:07,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-08-22 16:48:07,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-08-22 16:48:07,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-08-22 16:48:07,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-08-22 16:48:07,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-08-22 16:48:07,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-08-22 16:48:07,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-08-22 16:48:07,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 16:48:07,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 16:48:07,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 16:48:07,042 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-08-22 16:48:07,042 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 16:48:07,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 16:48:07,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 16:48:07,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-22 16:48:07,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 16:48:07,635 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 16:48:07,635 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-08-22 16:48:07,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:48:07 BoogieIcfgContainer [2020-08-22 16:48:07,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 16:48:07,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 16:48:07,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 16:48:07,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 16:48:07,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:48:06" (1/3) ... [2020-08-22 16:48:07,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b940931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:48:07, skipping insertion in model container [2020-08-22 16:48:07,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:48:06" (2/3) ... [2020-08-22 16:48:07,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b940931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:48:07, skipping insertion in model container [2020-08-22 16:48:07,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:48:07" (3/3) ... [2020-08-22 16:48:07,648 INFO L109 eAbstractionObserver]: Analyzing ICFG test_add-1.i [2020-08-22 16:48:07,659 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-08-22 16:48:07,667 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 16:48:07,680 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 16:48:07,699 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 16:48:07,699 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 16:48:07,699 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-08-22 16:48:07,699 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 16:48:07,700 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 16:48:07,700 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 16:48:07,700 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 16:48:07,700 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 16:48:07,716 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-08-22 16:48:07,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-08-22 16:48:07,723 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:48:07,724 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:48:07,724 INFO L427 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:48:07,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:48:07,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1154845074, now seen corresponding path program 1 times [2020-08-22 16:48:07,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:48:07,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733051663] [2020-08-22 16:48:07,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:48:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:48:07,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:48:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:48:07,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 16:48:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:48:08,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:48:08,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:48:08,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 16:48:08,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:48:08,026 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-22 16:48:08,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733051663] [2020-08-22 16:48:08,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:48:08,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 16:48:08,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811980111] [2020-08-22 16:48:08,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 16:48:08,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:48:08,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 16:48:08,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 16:48:08,050 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 4 states. [2020-08-22 16:48:08,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:48:08,298 INFO L93 Difference]: Finished difference Result 108 states and 126 transitions. [2020-08-22 16:48:08,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 16:48:08,301 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-08-22 16:48:08,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:48:08,312 INFO L225 Difference]: With dead ends: 108 [2020-08-22 16:48:08,313 INFO L226 Difference]: Without dead ends: 53 [2020-08-22 16:48:08,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 16:48:08,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-08-22 16:48:08,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 46. [2020-08-22 16:48:08,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-08-22 16:48:08,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2020-08-22 16:48:08,368 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 28 [2020-08-22 16:48:08,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:48:08,369 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2020-08-22 16:48:08,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 16:48:08,369 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2020-08-22 16:48:08,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-08-22 16:48:08,371 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:48:08,372 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:48:08,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 16:48:08,373 INFO L427 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:48:08,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:48:08,373 INFO L82 PathProgramCache]: Analyzing trace with hash 221547774, now seen corresponding path program 1 times [2020-08-22 16:48:08,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:48:08,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591619295] [2020-08-22 16:48:08,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:48:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:48:08,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:48:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:48:08,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 16:48:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:48:08,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:48:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:48:08,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 16:48:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:48:08,613 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-22 16:48:08,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591619295] [2020-08-22 16:48:08,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602081644] [2020-08-22 16:48:08,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:48:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:48:08,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjunts are in the unsatisfiable core [2020-08-22 16:48:08,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:48:08,833 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:48:08,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-08-22 16:48:08,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2020-08-22 16:48:08,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120362376] [2020-08-22 16:48:08,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 16:48:08,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:48:08,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 16:48:08,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:48:08,838 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand 4 states. [2020-08-22 16:48:08,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:48:08,880 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2020-08-22 16:48:08,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 16:48:08,882 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-08-22 16:48:08,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:48:08,885 INFO L225 Difference]: With dead ends: 64 [2020-08-22 16:48:08,885 INFO L226 Difference]: Without dead ends: 50 [2020-08-22 16:48:08,887 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:48:08,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-08-22 16:48:08,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-08-22 16:48:08,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-08-22 16:48:08,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2020-08-22 16:48:08,917 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 28 [2020-08-22 16:48:08,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:48:08,917 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2020-08-22 16:48:08,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 16:48:08,918 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2020-08-22 16:48:08,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-08-22 16:48:08,919 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:48:08,919 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:48:09,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-08-22 16:48:09,127 INFO L427 AbstractCegarLoop]: === Iteration 3 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:48:09,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:48:09,128 INFO L82 PathProgramCache]: Analyzing trace with hash -2088028185, now seen corresponding path program 1 times [2020-08-22 16:48:09,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:48:09,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045218690] [2020-08-22 16:48:09,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:48:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:48:09,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:48:09,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:48:09,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 16:48:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:48:09,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:48:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:48:09,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 16:48:09,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:48:09,302 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-22 16:48:09,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045218690] [2020-08-22 16:48:09,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:48:09,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 16:48:09,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018019581] [2020-08-22 16:48:09,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 16:48:09,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:48:09,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 16:48:09,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:48:09,325 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 6 states. [2020-08-22 16:48:09,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:48:09,625 INFO L93 Difference]: Finished difference Result 63 states and 67 transitions. [2020-08-22 16:48:09,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 16:48:09,625 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-08-22 16:48:09,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:48:09,627 INFO L225 Difference]: With dead ends: 63 [2020-08-22 16:48:09,627 INFO L226 Difference]: Without dead ends: 57 [2020-08-22 16:48:09,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-08-22 16:48:09,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-08-22 16:48:09,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2020-08-22 16:48:09,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-08-22 16:48:09,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2020-08-22 16:48:09,645 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 28 [2020-08-22 16:48:09,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:48:09,646 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2020-08-22 16:48:09,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 16:48:09,646 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2020-08-22 16:48:09,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-08-22 16:48:09,649 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:48:09,649 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:48:09,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 16:48:09,650 INFO L427 AbstractCegarLoop]: === Iteration 4 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:48:09,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:48:09,650 INFO L82 PathProgramCache]: Analyzing trace with hash -513424880, now seen corresponding path program 1 times [2020-08-22 16:48:09,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:48:09,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535673767] [2020-08-22 16:48:09,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:48:09,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:48:09,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:48:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:48:09,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 16:48:09,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:48:09,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 16:48:09,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:48:09,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 16:48:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:48:09,865 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 16:48:09,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535673767] [2020-08-22 16:48:09,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:48:09,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 16:48:09,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158640043] [2020-08-22 16:48:09,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 16:48:09,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:48:09,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 16:48:09,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:48:09,867 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand 8 states. [2020-08-22 16:48:10,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:48:10,476 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2020-08-22 16:48:10,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-22 16:48:10,477 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2020-08-22 16:48:10,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:48:10,479 INFO L225 Difference]: With dead ends: 82 [2020-08-22 16:48:10,479 INFO L226 Difference]: Without dead ends: 69 [2020-08-22 16:48:10,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2020-08-22 16:48:10,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-08-22 16:48:10,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 52. [2020-08-22 16:48:10,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-08-22 16:48:10,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2020-08-22 16:48:10,489 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 28 [2020-08-22 16:48:10,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:48:10,490 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2020-08-22 16:48:10,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 16:48:10,490 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2020-08-22 16:48:10,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-08-22 16:48:10,491 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:48:10,491 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:48:10,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 16:48:10,492 INFO L427 AbstractCegarLoop]: === Iteration 5 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:48:10,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:48:10,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1823590536, now seen corresponding path program 1 times [2020-08-22 16:48:10,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:48:10,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226637702] [2020-08-22 16:48:10,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:48:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 16:48:10,529 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 16:48:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 16:48:10,557 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 16:48:10,591 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-08-22 16:48:10,591 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 16:48:10,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 16:48:10,637 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 16 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2020-08-22 16:48:10,638 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 17 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2020-08-22 16:48:10,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:48:10 BoogieIcfgContainer [2020-08-22 16:48:10,671 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 16:48:10,673 INFO L168 Benchmark]: Toolchain (without parser) took 4417.62 ms. Allocated memory was 141.6 MB in the beginning and 244.8 MB in the end (delta: 103.3 MB). Free memory was 102.1 MB in the beginning and 158.8 MB in the end (delta: -56.7 MB). Peak memory consumption was 46.6 MB. Max. memory is 7.1 GB. [2020-08-22 16:48:10,674 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 16:48:10,675 INFO L168 Benchmark]: CACSL2BoogieTranslator took 632.15 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 101.7 MB in the beginning and 165.5 MB in the end (delta: -63.8 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-08-22 16:48:10,676 INFO L168 Benchmark]: Boogie Preprocessor took 72.93 ms. Allocated memory is still 204.5 MB. Free memory was 165.5 MB in the beginning and 162.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2020-08-22 16:48:10,677 INFO L168 Benchmark]: RCFGBuilder took 678.45 ms. Allocated memory is still 204.5 MB. Free memory was 162.3 MB in the beginning and 105.5 MB in the end (delta: 56.8 MB). Peak memory consumption was 56.8 MB. Max. memory is 7.1 GB. [2020-08-22 16:48:10,677 INFO L168 Benchmark]: TraceAbstraction took 3029.57 ms. Allocated memory was 204.5 MB in the beginning and 244.8 MB in the end (delta: 40.4 MB). Free memory was 104.9 MB in the beginning and 158.8 MB in the end (delta: -53.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-22 16:48:10,681 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 632.15 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 101.7 MB in the beginning and 165.5 MB in the end (delta: -63.8 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 72.93 ms. Allocated memory is still 204.5 MB. Free memory was 165.5 MB in the beginning and 162.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 678.45 ms. Allocated memory is still 204.5 MB. Free memory was 162.3 MB in the beginning and 105.5 MB in the end (delta: 56.8 MB). Peak memory consumption was 56.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3029.57 ms. Allocated memory was 204.5 MB in the beginning and 244.8 MB in the end (delta: 40.4 MB). Free memory was 104.9 MB in the beginning and 158.8 MB in the end (delta: -53.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 16 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 17 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 656]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L651] struct ldv_list_head s1 = { &(s1), &(s1) }; VAL [\old(s1)=null, \old(s1)=null, s1={2:0}] [L660] CALL foo() VAL [s1={2:0}] [L654] int j = __VERIFIER_nondet_int(); [L655] CALL ldv_set_add(j, &s1) VAL [\old(new)=0, s={2:0}, s1={2:0}] [L622] CALL, EXPR ldv_is_in_set(new, s) VAL [\old(e)=0, s={2:0}, s1={2:0}] [L640] struct ldv_list_element *m; [L641] EXPR (s)->next [L641] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L641] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [\old(e)=0, __mptr={2:0}, e=0, m={2:-4}, s={2:0}, s={2:0}, s1={2:0}] [L641] COND FALSE !(&m->list != (s)) VAL [\old(e)=0, __mptr={2:0}, e=0, m={2:-4}, s={2:0}, s={2:0}, s1={2:0}] [L646] return 0; VAL [\old(e)=0, \result=0, __mptr={2:0}, e=0, m={2:-4}, s={2:0}, s={2:0}, s1={2:0}] [L622] RET, EXPR ldv_is_in_set(new, s) VAL [\old(new)=0, ldv_is_in_set(new, s)=0, new=0, s={2:0}, s={2:0}, s1={2:0}] [L622] COND TRUE !ldv_is_in_set(new, s) [L623] struct ldv_list_element *le; VAL [\old(new)=0, new=0, s={2:0}, s={2:0}, s1={2:0}] [L624] CALL, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) VAL [\old(size)=12, s1={2:0}] [L565] void *ptr = malloc(size); VAL [\old(size)=12, malloc(size)={-1:0}, ptr={-1:0}, s1={2:0}, size=12] [L566] CALL assume_abort_if_not(ptr!=0) VAL [\old(cond)=1, s1={2:0}] [L554] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s1={2:0}] [L566] RET assume_abort_if_not(ptr!=0) VAL [\old(size)=12, malloc(size)={-1:0}, ptr={-1:0}, s1={2:0}, size=12] [L567] return ptr; VAL [\old(size)=12, \result={-1:0}, malloc(size)={-1:0}, ptr={-1:0}, s1={2:0}, size=12] [L624] RET, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) VAL [\old(new)=0, ldv_successful_malloc(sizeof(struct ldv_list_element))={-1:0}, new=0, s={2:0}, s={2:0}, s1={2:0}] [L624] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L625] le->e = new VAL [\old(new)=0, le={-1:0}, new=0, s={2:0}, s={2:0}, s1={2:0}] [L626] CALL ldv_list_add(&le->list, s) VAL [head={2:0}, new={-1:4}, s1={2:0}] [L594] EXPR head->next VAL [head={2:0}, head={2:0}, head->next={2:0}, new={-1:4}, new={-1:4}, s1={2:0}] [L594] CALL __ldv_list_add(new, head, head->next) VAL [new={-1:4}, next={2:0}, prev={2:0}, s1={2:0}] [L582] next->prev = new [L583] new->next = next [L584] new->prev = prev [L585] prev->next = new VAL [new={-1:4}, new={-1:4}, next={2:0}, next={2:0}, prev={2:0}, prev={2:0}, s1={2:0}] [L594] RET __ldv_list_add(new, head, head->next) VAL [head={2:0}, head={2:0}, head->next={2:0}, new={-1:4}, new={-1:4}, s1={2:0}] [L626] RET ldv_list_add(&le->list, s) VAL [\old(new)=0, le={-1:0}, new=0, s={2:0}, s={2:0}, s1={2:0}] [L655] RET ldv_set_add(j, &s1) VAL [j=0, s1={2:0}] [L656] CALL ldv_is_in_set(j, &s1) VAL [\old(e)=0, s={2:0}, s1={2:0}] [L640] struct ldv_list_element *m; [L641] EXPR (s)->next [L641] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L641] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [\old(e)=0, __mptr={-1:4}, e=0, m={-1:0}, s={2:0}, s={2:0}, s1={2:0}] [L641] COND TRUE &m->list != (s) [L642] EXPR m->e VAL [\old(e)=0, __mptr={-1:4}, e=0, m={-1:0}, m->e=0, s={2:0}, s={2:0}, s1={2:0}] [L642] COND TRUE m->e == e [L643] return 1; VAL [\old(e)=0, \result=1, __mptr={-1:4}, e=0, m={-1:0}, s={2:0}, s={2:0}, s1={2:0}] [L656] RET ldv_is_in_set(j, &s1) VAL [j=0, ldv_is_in_set(j, &s1)=1, s1={2:0}] [L656] COND TRUE ldv_is_in_set(j, &s1) [L656] __VERIFIER_error() VAL [j=0, s1={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 99 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.8s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 178 SDtfs, 232 SDslu, 181 SDs, 0 SdLazy, 331 SolverSat, 112 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 31 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 14283 SizeOfPredicates, 0 NumberOfNonLiveVariables, 165 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 22/24 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...