/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 0.1.25-3af5e1f [2020-09-04 13:31:12,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 13:31:12,741 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 13:31:12,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 13:31:12,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 13:31:12,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 13:31:12,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 13:31:12,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 13:31:12,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 13:31:12,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 13:31:12,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 13:31:12,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 13:31:12,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 13:31:12,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 13:31:12,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 13:31:12,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 13:31:12,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 13:31:12,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 13:31:12,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 13:31:12,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 13:31:12,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 13:31:12,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 13:31:12,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 13:31:12,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 13:31:12,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 13:31:12,841 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 13:31:12,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 13:31:12,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 13:31:12,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 13:31:12,847 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 13:31:12,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 13:31:12,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 13:31:12,849 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 13:31:12,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 13:31:12,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 13:31:12,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 13:31:12,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 13:31:12,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 13:31:12,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 13:31:12,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 13:31:12,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 13:31:12,855 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-04 13:31:12,902 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 13:31:12,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 13:31:12,905 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 13:31:12,905 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 13:31:12,905 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 13:31:12,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 13:31:12,906 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 13:31:12,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 13:31:12,906 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 13:31:12,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 13:31:12,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 13:31:12,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 13:31:12,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 13:31:12,908 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 13:31:12,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 13:31:12,909 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 13:31:12,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 13:31:12,909 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 13:31:12,909 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 13:31:12,909 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 13:31:12,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 13:31:12,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 13:31:12,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 13:31:12,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 13:31:12,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 13:31:12,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 13:31:12,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 13:31:12,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 13:31:12,911 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 13:31:12,911 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 13:31:13,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 13:31:13,359 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 13:31:13,366 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 13:31:13,368 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 13:31:13,368 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 13:31:13,370 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-09-04 13:31:13,452 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/15b1e2d5b/042b17ad2c854816869ae0bb66589de6/FLAG1f0156fe1 [2020-09-04 13:31:14,136 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 13:31:14,137 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-09-04 13:31:14,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/15b1e2d5b/042b17ad2c854816869ae0bb66589de6/FLAG1f0156fe1 [2020-09-04 13:31:14,347 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/15b1e2d5b/042b17ad2c854816869ae0bb66589de6 [2020-09-04 13:31:14,360 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 13:31:14,362 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 13:31:14,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 13:31:14,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 13:31:14,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 13:31:14,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:31:14" (1/1) ... [2020-09-04 13:31:14,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fbadd11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:31:14, skipping insertion in model container [2020-09-04 13:31:14,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:31:14" (1/1) ... [2020-09-04 13:31:14,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 13:31:14,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 13:31:15,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:31:15,030 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 13:31:15,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:31:15,158 INFO L208 MainTranslator]: Completed translation [2020-09-04 13:31:15,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:31:15 WrapperNode [2020-09-04 13:31:15,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 13:31:15,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 13:31:15,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 13:31:15,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 13:31:15,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:31:15" (1/1) ... [2020-09-04 13:31:15,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:31:15" (1/1) ... [2020-09-04 13:31:15,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:31:15" (1/1) ... [2020-09-04 13:31:15,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:31:15" (1/1) ... [2020-09-04 13:31:15,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:31:15" (1/1) ... [2020-09-04 13:31:15,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:31:15" (1/1) ... [2020-09-04 13:31:15,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:31:15" (1/1) ... [2020-09-04 13:31:15,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 13:31:15,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 13:31:15,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 13:31:15,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 13:31:15,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:31:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:31:15,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 13:31:15,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 13:31:15,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-04 13:31:15,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-04 13:31:15,318 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-04 13:31:15,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-04 13:31:15,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-09-04 13:31:15,318 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-09-04 13:31:15,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-09-04 13:31:15,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-09-04 13:31:15,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-09-04 13:31:15,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-09-04 13:31:15,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-09-04 13:31:15,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-09-04 13:31:15,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-09-04 13:31:15,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-04 13:31:15,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-09-04 13:31:15,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-09-04 13:31:15,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-09-04 13:31:15,321 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-09-04 13:31:15,321 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 13:31:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-04 13:31:15,321 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-04 13:31:15,322 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-04 13:31:15,323 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-04 13:31:15,323 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-04 13:31:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-04 13:31:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-04 13:31:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-04 13:31:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-04 13:31:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-04 13:31:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-04 13:31:15,324 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-04 13:31:15,325 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-04 13:31:15,325 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-04 13:31:15,326 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-04 13:31:15,326 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-04 13:31:15,326 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-04 13:31:15,326 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-04 13:31:15,326 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-04 13:31:15,326 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-04 13:31:15,327 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-04 13:31:15,327 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-04 13:31:15,327 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-04 13:31:15,327 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-04 13:31:15,327 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-04 13:31:15,327 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-04 13:31:15,328 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-04 13:31:15,328 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-04 13:31:15,328 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-04 13:31:15,328 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-04 13:31:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-04 13:31:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-04 13:31:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-04 13:31:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-04 13:31:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-04 13:31:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-04 13:31:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-04 13:31:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-04 13:31:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-04 13:31:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-04 13:31:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-04 13:31:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-04 13:31:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-04 13:31:15,331 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-04 13:31:15,331 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-04 13:31:15,331 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-04 13:31:15,332 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-04 13:31:15,332 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-04 13:31:15,332 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-04 13:31:15,333 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-04 13:31:15,333 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-04 13:31:15,333 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-04 13:31:15,334 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 13:31:15,334 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-04 13:31:15,334 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-04 13:31:15,334 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 13:31:15,334 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-04 13:31:15,335 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-04 13:31:15,335 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-04 13:31:15,335 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-04 13:31:15,336 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-04 13:31:15,336 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-04 13:31:15,336 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-04 13:31:15,336 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-04 13:31:15,337 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-04 13:31:15,337 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-04 13:31:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-04 13:31:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-04 13:31:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-04 13:31:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-04 13:31:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-04 13:31:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-04 13:31:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-04 13:31:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-04 13:31:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-04 13:31:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-04 13:31:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-04 13:31:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-04 13:31:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-04 13:31:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-04 13:31:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-04 13:31:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-04 13:31:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-04 13:31:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-04 13:31:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-04 13:31:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-04 13:31:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-04 13:31:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-04 13:31:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-04 13:31:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-04 13:31:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-04 13:31:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-04 13:31:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-04 13:31:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-04 13:31:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-04 13:31:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-04 13:31:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-04 13:31:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-04 13:31:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-04 13:31:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-04 13:31:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-04 13:31:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-04 13:31:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 13:31:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-04 13:31:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 13:31:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-04 13:31:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 13:31:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-09-04 13:31:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-09-04 13:31:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 13:31:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-09-04 13:31:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-09-04 13:31:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-09-04 13:31:15,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 13:31:15,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-09-04 13:31:15,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-09-04 13:31:15,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-09-04 13:31:15,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-09-04 13:31:15,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-04 13:31:15,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-09-04 13:31:15,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-09-04 13:31:15,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-09-04 13:31:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 13:31:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 13:31:15,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 13:31:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-09-04 13:31:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 13:31:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 13:31:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 13:31:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-04 13:31:15,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 13:31:16,004 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 13:31:16,005 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-04 13:31:16,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:31:16 BoogieIcfgContainer [2020-09-04 13:31:16,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 13:31:16,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 13:31:16,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 13:31:16,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 13:31:16,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 01:31:14" (1/3) ... [2020-09-04 13:31:16,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c653ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:31:16, skipping insertion in model container [2020-09-04 13:31:16,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:31:15" (2/3) ... [2020-09-04 13:31:16,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c653ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:31:16, skipping insertion in model container [2020-09-04 13:31:16,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:31:16" (3/3) ... [2020-09-04 13:31:16,019 INFO L109 eAbstractionObserver]: Analyzing ICFG test_add-1.i [2020-09-04 13:31:16,030 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 13:31:16,041 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 13:31:16,064 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 13:31:16,096 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 13:31:16,096 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 13:31:16,096 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 13:31:16,096 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 13:31:16,097 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 13:31:16,099 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 13:31:16,099 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 13:31:16,099 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 13:31:16,124 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-09-04 13:31:16,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-04 13:31:16,134 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:31:16,135 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] [2020-09-04 13:31:16,136 INFO L427 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:31:16,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:31:16,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1154845074, now seen corresponding path program 1 times [2020-09-04 13:31:16,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:31:16,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050445376] [2020-09-04 13:31:16,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:31:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:16,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:31:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:16,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-04 13:31:16,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:16,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:31:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:16,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 13:31:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:16,583 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-04 13:31:16,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050445376] [2020-09-04 13:31:16,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:31:16,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 13:31:16,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091864870] [2020-09-04 13:31:16,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 13:31:16,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:31:16,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 13:31:16,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 13:31:16,624 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 4 states. [2020-09-04 13:31:16,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:31:16,879 INFO L93 Difference]: Finished difference Result 108 states and 126 transitions. [2020-09-04 13:31:16,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 13:31:16,881 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-09-04 13:31:16,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:31:16,894 INFO L225 Difference]: With dead ends: 108 [2020-09-04 13:31:16,894 INFO L226 Difference]: Without dead ends: 53 [2020-09-04 13:31:16,899 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 [2020-09-04 13:31:16,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-04 13:31:16,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 46. [2020-09-04 13:31:16,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-04 13:31:16,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2020-09-04 13:31:16,962 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 28 [2020-09-04 13:31:16,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:31:16,963 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2020-09-04 13:31:16,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 13:31:16,963 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2020-09-04 13:31:16,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-04 13:31:16,966 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:31:16,966 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] [2020-09-04 13:31:16,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 13:31:16,967 INFO L427 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:31:16,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:31:16,968 INFO L82 PathProgramCache]: Analyzing trace with hash 221547774, now seen corresponding path program 1 times [2020-09-04 13:31:16,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:31:16,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005485464] [2020-09-04 13:31:16,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:31:17,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:17,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:31:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:17,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-04 13:31:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:17,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:31:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:17,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 13:31:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:17,246 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-04 13:31:17,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005485464] [2020-09-04 13:31:17,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220371255] [2020-09-04 13:31:17,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:31:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:17,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjunts are in the unsatisfiable core [2020-09-04 13:31:17,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:31:17,460 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:31:17,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:31:17,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2020-09-04 13:31:17,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221344869] [2020-09-04 13:31:17,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 13:31:17,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:31:17,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 13:31:17,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 13:31:17,465 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand 4 states. [2020-09-04 13:31:17,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:31:17,487 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2020-09-04 13:31:17,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 13:31:17,488 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-09-04 13:31:17,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:31:17,492 INFO L225 Difference]: With dead ends: 64 [2020-09-04 13:31:17,492 INFO L226 Difference]: Without dead ends: 50 [2020-09-04 13:31:17,493 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 [2020-09-04 13:31:17,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-04 13:31:17,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-09-04 13:31:17,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-04 13:31:17,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2020-09-04 13:31:17,508 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 28 [2020-09-04 13:31:17,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:31:17,509 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2020-09-04 13:31:17,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 13:31:17,509 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2020-09-04 13:31:17,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-04 13:31:17,510 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:31:17,511 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] [2020-09-04 13:31:17,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-09-04 13:31:17,729 INFO L427 AbstractCegarLoop]: === Iteration 3 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:31:17,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:31:17,730 INFO L82 PathProgramCache]: Analyzing trace with hash -2088028185, now seen corresponding path program 1 times [2020-09-04 13:31:17,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:31:17,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96240496] [2020-09-04 13:31:17,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:31:17,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:17,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:31:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:17,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-04 13:31:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:17,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:31:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:17,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 13:31:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:17,907 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-04 13:31:17,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96240496] [2020-09-04 13:31:17,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:31:17,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 13:31:17,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106527449] [2020-09-04 13:31:17,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 13:31:17,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:31:17,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 13:31:17,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 13:31:17,911 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 6 states. [2020-09-04 13:31:18,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:31:18,261 INFO L93 Difference]: Finished difference Result 63 states and 67 transitions. [2020-09-04 13:31:18,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 13:31:18,262 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-09-04 13:31:18,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:31:18,264 INFO L225 Difference]: With dead ends: 63 [2020-09-04 13:31:18,264 INFO L226 Difference]: Without dead ends: 57 [2020-09-04 13:31:18,264 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 [2020-09-04 13:31:18,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-09-04 13:31:18,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2020-09-04 13:31:18,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-04 13:31:18,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2020-09-04 13:31:18,287 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 28 [2020-09-04 13:31:18,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:31:18,289 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2020-09-04 13:31:18,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 13:31:18,290 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2020-09-04 13:31:18,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-04 13:31:18,291 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:31:18,291 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] [2020-09-04 13:31:18,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 13:31:18,292 INFO L427 AbstractCegarLoop]: === Iteration 4 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:31:18,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:31:18,294 INFO L82 PathProgramCache]: Analyzing trace with hash -513424880, now seen corresponding path program 1 times [2020-09-04 13:31:18,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:31:18,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122093214] [2020-09-04 13:31:18,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:31:18,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:18,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:31:18,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:18,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-04 13:31:18,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:18,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 13:31:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:18,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 13:31:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:31:18,509 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:31:18,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122093214] [2020-09-04 13:31:18,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:31:18,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 13:31:18,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058330870] [2020-09-04 13:31:18,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 13:31:18,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:31:18,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 13:31:18,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:31:18,512 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand 8 states. [2020-09-04 13:31:19,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:31:19,245 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2020-09-04 13:31:19,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-04 13:31:19,246 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2020-09-04 13:31:19,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:31:19,247 INFO L225 Difference]: With dead ends: 82 [2020-09-04 13:31:19,247 INFO L226 Difference]: Without dead ends: 69 [2020-09-04 13:31:19,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2020-09-04 13:31:19,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-09-04 13:31:19,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 52. [2020-09-04 13:31:19,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-04 13:31:19,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2020-09-04 13:31:19,260 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 28 [2020-09-04 13:31:19,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:31:19,260 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2020-09-04 13:31:19,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 13:31:19,260 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2020-09-04 13:31:19,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-04 13:31:19,262 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:31:19,262 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] [2020-09-04 13:31:19,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 13:31:19,262 INFO L427 AbstractCegarLoop]: === Iteration 5 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:31:19,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:31:19,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1823590536, now seen corresponding path program 1 times [2020-09-04 13:31:19,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:31:19,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183033053] [2020-09-04 13:31:19,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:31:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 13:31:19,313 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 13:31:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 13:31:19,351 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 13:31:19,397 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-04 13:31:19,397 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 13:31:19,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 13:31:19,458 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# [2020-09-04 13:31:19,460 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# [2020-09-04 13:31:19,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 01:31:19 BoogieIcfgContainer [2020-09-04 13:31:19,484 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 13:31:19,490 INFO L168 Benchmark]: Toolchain (without parser) took 5127.88 ms. Allocated memory was 140.0 MB in the beginning and 246.9 MB in the end (delta: 107.0 MB). Free memory was 101.5 MB in the beginning and 174.3 MB in the end (delta: -72.8 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. [2020-09-04 13:31:19,492 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 13:31:19,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 798.15 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.1 MB in the beginning and 165.2 MB in the end (delta: -64.1 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-09-04 13:31:19,495 INFO L168 Benchmark]: Boogie Preprocessor took 83.37 ms. Allocated memory is still 203.4 MB. Free memory was 165.2 MB in the beginning and 161.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-04 13:31:19,496 INFO L168 Benchmark]: RCFGBuilder took 764.49 ms. Allocated memory is still 203.4 MB. Free memory was 161.3 MB in the beginning and 104.5 MB in the end (delta: 56.8 MB). Peak memory consumption was 56.8 MB. Max. memory is 7.1 GB. [2020-09-04 13:31:19,500 INFO L168 Benchmark]: TraceAbstraction took 3473.09 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 103.8 MB in the beginning and 174.3 MB in the end (delta: -70.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 13:31:19,506 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 798.15 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.1 MB in the beginning and 165.2 MB in the end (delta: -64.1 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 83.37 ms. Allocated memory is still 203.4 MB. Free memory was 165.2 MB in the beginning and 161.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 764.49 ms. Allocated memory is still 203.4 MB. Free memory was 161.3 MB in the beginning and 104.5 MB in the end (delta: 56.8 MB). Peak memory consumption was 56.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3473.09 ms. Allocated memory was 203.4 MB in the beginning and 246.9 MB in the end (delta: 43.5 MB). Free memory was 103.8 MB in the beginning and 174.3 MB in the end (delta: -70.5 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 17 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 16 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: 3.3s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 1.4s, 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, 0.7s 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, 0.2s SatisfiabilityAnalysisTime, 0.8s 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...