/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-sets/test_add-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:25:39,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:25:39,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:25:39,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:25:39,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:25:39,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:25:39,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:25:39,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:25:39,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:25:39,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:25:39,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:25:39,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:25:39,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:25:39,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:25:39,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:25:39,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:25:39,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:25:39,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:25:39,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:25:39,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:25:39,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:25:39,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:25:39,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:25:39,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:25:39,720 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 13:25:39,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 13:25:39,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 13:25:39,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 13:25:39,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 13:25:39,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 13:25:39,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 13:25:39,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 13:25:39,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 13:25:39,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 13:25:39,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 13:25:39,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 13:25:39,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 13:25:39,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 13:25:39,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:25:39,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:25:39,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:25:39,733 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 13:25:39,747 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:25:39,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:25:39,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:25:39,753 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:25:39,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:25:39,754 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:25:39,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:25:39,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:25:39,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:25:39,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:25:39,755 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:25:39,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:25:39,755 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:25:39,755 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:25:39,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:25:39,756 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:25:39,756 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:25:39,756 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:25:39,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:25:39,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:25:39,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:25:39,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:25:39,757 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:25:40,061 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:25:40,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:25:40,083 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:25:40,084 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:25:40,085 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:25:40,086 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-07-07 13:25:40,161 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/471d2860e/a4c264c8512d400ea5782899f900a26e/FLAGc62773594 [2020-07-07 13:25:40,734 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:25:40,735 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-07-07 13:25:40,762 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/471d2860e/a4c264c8512d400ea5782899f900a26e/FLAGc62773594 [2020-07-07 13:25:41,071 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/471d2860e/a4c264c8512d400ea5782899f900a26e [2020-07-07 13:25:41,080 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:25:41,082 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:25:41,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:25:41,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:25:41,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:25:41,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:25:41" (1/1) ... [2020-07-07 13:25:41,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f8393f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:25:41, skipping insertion in model container [2020-07-07 13:25:41,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:25:41" (1/1) ... [2020-07-07 13:25:41,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:25:41,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:25:41,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:25:41,637 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:25:41,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:25:41,765 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:25:41,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:25:41 WrapperNode [2020-07-07 13:25:41,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:25:41,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:25:41,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:25:41,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:25:41,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:25:41" (1/1) ... [2020-07-07 13:25:41,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:25:41" (1/1) ... [2020-07-07 13:25:41,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:25:41" (1/1) ... [2020-07-07 13:25:41,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:25:41" (1/1) ... [2020-07-07 13:25:41,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:25:41" (1/1) ... [2020-07-07 13:25:41,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:25:41" (1/1) ... [2020-07-07 13:25:41,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:25:41" (1/1) ... [2020-07-07 13:25:41,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:25:41,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:25:41,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:25:41,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:25:41,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:25:41" (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 [2020-07-07 13:25:41,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:25:41,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:25:41,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-07-07 13:25:41,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-07-07 13:25:41,917 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-07 13:25:41,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-07-07 13:25:41,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-07-07 13:25:41,918 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-07-07 13:25:41,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-07-07 13:25:41,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-07-07 13:25:41,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-07-07 13:25:41,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-07-07 13:25:41,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-07-07 13:25:41,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-07-07 13:25:41,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-07-07 13:25:41,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-07-07 13:25:41,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-07-07 13:25:41,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-07-07 13:25:41,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-07-07 13:25:41,921 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-07-07 13:25:41,922 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:25:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-07-07 13:25:41,925 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-07-07 13:25:41,925 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-07 13:25:41,926 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-07 13:25:41,926 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-07 13:25:41,926 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-07 13:25:41,926 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-07 13:25:41,927 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-07 13:25:41,927 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-07 13:25:41,927 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-07 13:25:41,927 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-07 13:25:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-07 13:25:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-07 13:25:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-07 13:25:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-07 13:25:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-07 13:25:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-07 13:25:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-07 13:25:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-07 13:25:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-07 13:25:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-07 13:25:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-07 13:25:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-07 13:25:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-07 13:25:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-07 13:25:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-07 13:25:41,929 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-07 13:25:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-07 13:25:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-07 13:25:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-07 13:25:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-07 13:25:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-07 13:25:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-07 13:25:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-07 13:25:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-07 13:25:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-07 13:25:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-07 13:25:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-07 13:25:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-07 13:25:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-07 13:25:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-07 13:25:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-07 13:25:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-07 13:25:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-07 13:25:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-07 13:25:41,932 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-07 13:25:41,932 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-07 13:25:41,932 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-07 13:25:41,932 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-07 13:25:41,932 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-07 13:25:41,932 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-07 13:25:41,933 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-07 13:25:41,933 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 13:25:41,933 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-07 13:25:41,934 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-07 13:25:41,934 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 13:25:41,934 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-07 13:25:41,934 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-07 13:25:41,934 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-07 13:25:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-07 13:25:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-07 13:25:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-07 13:25:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-07 13:25:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-07 13:25:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-07 13:25:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-07 13:25:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-07 13:25:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-07 13:25:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-07 13:25:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-07 13:25:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-07 13:25:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-07 13:25:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-07 13:25:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-07 13:25:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-07 13:25:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-07 13:25:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-07 13:25:41,938 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-07 13:25:41,938 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-07 13:25:41,938 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-07 13:25:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-07 13:25:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-07 13:25:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-07 13:25:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-07 13:25:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-07 13:25:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-07 13:25:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-07 13:25:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-07 13:25:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-07 13:25:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-07 13:25:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-07 13:25:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-07 13:25:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-07 13:25:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-07 13:25:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-07 13:25:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-07 13:25:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-07 13:25:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-07 13:25:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-07 13:25:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-07 13:25:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-07 13:25:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-07 13:25:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:25:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-07 13:25:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 13:25:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-07-07 13:25:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 13:25:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-07-07 13:25:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-07-07 13:25:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 13:25:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-07-07 13:25:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-07-07 13:25:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-07-07 13:25:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 13:25:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-07-07 13:25:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-07-07 13:25:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-07-07 13:25:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-07-07 13:25:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-07-07 13:25:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-07-07 13:25:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-07-07 13:25:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-07-07 13:25:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 13:25:41,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 13:25:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 13:25:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-07-07 13:25:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:25:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:25:41,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 13:25:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-07 13:25:41,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:25:42,700 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:25:42,700 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-07 13:25:42,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:25:42 BoogieIcfgContainer [2020-07-07 13:25:42,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:25:42,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:25:42,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:25:42,714 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:25:42,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:25:41" (1/3) ... [2020-07-07 13:25:42,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cc19871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:25:42, skipping insertion in model container [2020-07-07 13:25:42,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:25:41" (2/3) ... [2020-07-07 13:25:42,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cc19871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:25:42, skipping insertion in model container [2020-07-07 13:25:42,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:25:42" (3/3) ... [2020-07-07 13:25:42,718 INFO L109 eAbstractionObserver]: Analyzing ICFG test_add-1.i [2020-07-07 13:25:42,729 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:25:42,738 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:25:42,752 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:25:42,773 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:25:42,773 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:25:42,773 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:25:42,773 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:25:42,774 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:25:42,774 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:25:42,774 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:25:42,774 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:25:42,791 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2020-07-07 13:25:42,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-07-07 13:25:42,804 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:25:42,805 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-07 13:25:42,806 INFO L427 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:25:42,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:25:42,812 INFO L82 PathProgramCache]: Analyzing trace with hash -773204813, now seen corresponding path program 1 times [2020-07-07 13:25:42,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:25:42,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972709353] [2020-07-07 13:25:42,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:25:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:43,270 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-07-07 13:25:43,271 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:25:43,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972709353] [2020-07-07 13:25:43,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:25:43,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 13:25:43,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778732162] [2020-07-07 13:25:43,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 13:25:43,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:25:43,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 13:25:43,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 13:25:43,300 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 6 states. [2020-07-07 13:25:43,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:25:43,811 INFO L93 Difference]: Finished difference Result 184 states and 205 transitions. [2020-07-07 13:25:43,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 13:25:43,813 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-07-07 13:25:43,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:25:43,826 INFO L225 Difference]: With dead ends: 184 [2020-07-07 13:25:43,826 INFO L226 Difference]: Without dead ends: 95 [2020-07-07 13:25:43,831 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 [2020-07-07 13:25:43,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-07-07 13:25:43,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 87. [2020-07-07 13:25:43,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-07-07 13:25:43,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2020-07-07 13:25:43,900 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 50 [2020-07-07 13:25:43,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:25:43,901 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2020-07-07 13:25:43,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 13:25:43,901 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2020-07-07 13:25:43,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-07 13:25:43,905 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:25:43,905 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2020-07-07 13:25:43,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:25:43,906 INFO L427 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:25:43,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:25:43,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1962919132, now seen corresponding path program 1 times [2020-07-07 13:25:43,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:25:43,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524627845] [2020-07-07 13:25:43,908 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:25:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:44,134 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-07 13:25:44,134 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:25:44,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524627845] [2020-07-07 13:25:44,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:25:44,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 13:25:44,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910173631] [2020-07-07 13:25:44,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 13:25:44,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:25:44,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 13:25:44,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 13:25:44,140 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand 6 states. [2020-07-07 13:25:44,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:25:44,529 INFO L93 Difference]: Finished difference Result 102 states and 106 transitions. [2020-07-07 13:25:44,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 13:25:44,529 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-07-07 13:25:44,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:25:44,532 INFO L225 Difference]: With dead ends: 102 [2020-07-07 13:25:44,532 INFO L226 Difference]: Without dead ends: 95 [2020-07-07 13:25:44,534 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 [2020-07-07 13:25:44,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-07-07 13:25:44,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 87. [2020-07-07 13:25:44,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-07-07 13:25:44,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 90 transitions. [2020-07-07 13:25:44,553 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 90 transitions. Word has length 53 [2020-07-07 13:25:44,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:25:44,554 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 90 transitions. [2020-07-07 13:25:44,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 13:25:44,554 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 90 transitions. [2020-07-07 13:25:44,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-07 13:25:44,556 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:25:44,556 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-07 13:25:44,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:25:44,557 INFO L427 AbstractCegarLoop]: === Iteration 3 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:25:44,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:25:44,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1545179603, now seen corresponding path program 1 times [2020-07-07 13:25:44,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:25:44,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2126600148] [2020-07-07 13:25:44,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:25:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:44,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:44,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:25:44,902 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-07 13:25:44,903 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:25:44,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2126600148] [2020-07-07 13:25:44,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:25:44,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-07 13:25:44,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216420215] [2020-07-07 13:25:44,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-07 13:25:44,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:25:44,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-07 13:25:44,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-07-07 13:25:44,905 INFO L87 Difference]: Start difference. First operand 87 states and 90 transitions. Second operand 14 states. [2020-07-07 13:25:46,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:25:46,685 INFO L93 Difference]: Finished difference Result 180 states and 188 transitions. [2020-07-07 13:25:46,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-07-07 13:25:46,686 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 56 [2020-07-07 13:25:46,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:25:46,690 INFO L225 Difference]: With dead ends: 180 [2020-07-07 13:25:46,690 INFO L226 Difference]: Without dead ends: 104 [2020-07-07 13:25:46,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=371, Invalid=1111, Unknown=0, NotChecked=0, Total=1482 [2020-07-07 13:25:46,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-07-07 13:25:46,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 92. [2020-07-07 13:25:46,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-07-07 13:25:46,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2020-07-07 13:25:46,716 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 56 [2020-07-07 13:25:46,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:25:46,717 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2020-07-07 13:25:46,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-07 13:25:46,717 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2020-07-07 13:25:46,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-07-07 13:25:46,720 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:25:46,721 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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, 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] [2020-07-07 13:25:46,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 13:25:46,721 INFO L427 AbstractCegarLoop]: === Iteration 4 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:25:46,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:25:46,721 INFO L82 PathProgramCache]: Analyzing trace with hash -2001576911, now seen corresponding path program 1 times [2020-07-07 13:25:46,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:25:46,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126293255] [2020-07-07 13:25:46,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:25:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:25:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:25:46,939 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:25:46,940 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 13:25:46,940 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 13:25:46,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 13:25:46,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:25:46 BoogieIcfgContainer [2020-07-07 13:25:46,962 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:25:46,965 INFO L168 Benchmark]: Toolchain (without parser) took 5881.69 ms. Allocated memory was 145.2 MB in the beginning and 286.3 MB in the end (delta: 141.0 MB). Free memory was 102.0 MB in the beginning and 119.3 MB in the end (delta: -17.3 MB). Peak memory consumption was 123.8 MB. Max. memory is 7.1 GB. [2020-07-07 13:25:46,966 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 145.2 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. [2020-07-07 13:25:46,967 INFO L168 Benchmark]: CACSL2BoogieTranslator took 682.48 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 101.8 MB in the beginning and 164.3 MB in the end (delta: -62.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-07-07 13:25:46,968 INFO L168 Benchmark]: Boogie Preprocessor took 77.37 ms. Allocated memory is still 202.9 MB. Free memory was 164.3 MB in the beginning and 160.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-07-07 13:25:46,968 INFO L168 Benchmark]: RCFGBuilder took 862.53 ms. Allocated memory is still 202.9 MB. Free memory was 160.9 MB in the beginning and 96.5 MB in the end (delta: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 7.1 GB. [2020-07-07 13:25:46,969 INFO L168 Benchmark]: TraceAbstraction took 4251.05 ms. Allocated memory was 202.9 MB in the beginning and 286.3 MB in the end (delta: 83.4 MB). Free memory was 95.9 MB in the beginning and 119.3 MB in the end (delta: -23.4 MB). Peak memory consumption was 60.0 MB. Max. memory is 7.1 GB. [2020-07-07 13:25:46,973 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 145.2 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 682.48 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 101.8 MB in the beginning and 164.3 MB in the end (delta: -62.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 77.37 ms. Allocated memory is still 202.9 MB. Free memory was 164.3 MB in the beginning and 160.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 862.53 ms. Allocated memory is still 202.9 MB. Free memory was 160.9 MB in the beginning and 96.5 MB in the end (delta: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4251.05 ms. Allocated memory was 202.9 MB in the beginning and 286.3 MB in the end (delta: 83.4 MB). Free memory was 95.9 MB in the beginning and 119.3 MB in the end (delta: -23.4 MB). Peak memory consumption was 60.0 MB. Max. memory is 7.1 GB. * 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) }; [L660] CALL foo() [L654] int j = __VERIFIER_nondet_int(); [L655] CALL ldv_set_add(j, &s1) [L622] CALL, EXPR ldv_is_in_set(new, s) [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) );}) [L641] COND FALSE !(&m->list != (s)) [L646] return 0; [L622] RET, EXPR ldv_is_in_set(new, s) [L622] COND TRUE !ldv_is_in_set(new, s) [L623] struct ldv_list_element *le; [L624] CALL, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L624] RET, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L624] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L625] le->e = new [L626] CALL ldv_list_add(&le->list, s) [L594] EXPR head->next [L594] CALL __ldv_list_add(new, head, head->next) [L582] next->prev = new [L583] new->next = next [L584] new->prev = prev [L585] prev->next = new [L594] RET __ldv_list_add(new, head, head->next) [L626] RET ldv_list_add(&le->list, s) [L655] RET ldv_set_add(j, &s1) [L656] CALL ldv_is_in_set(j, &s1) [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) );}) [L641] COND TRUE &m->list != (s) [L642] EXPR m->e [L642] COND TRUE m->e == e [L643] return 1; [L656] RET ldv_is_in_set(j, &s1) [L656] COND TRUE ldv_is_in_set(j, &s1) [L656] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 181 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.1s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 235 SDtfs, 732 SDslu, 208 SDs, 0 SdLazy, 884 SolverSat, 120 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred 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, 3 MinimizatonAttempts, 28 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...