/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 0.1.25-72570d3 [2020-08-22 19:06:51,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 19:06:51,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 19:06:51,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 19:06:51,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 19:06:51,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 19:06:51,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 19:06:51,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 19:06:51,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 19:06:51,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 19:06:51,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 19:06:51,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 19:06:51,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 19:06:51,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 19:06:51,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 19:06:51,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 19:06:51,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 19:06:51,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 19:06:51,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 19:06:51,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 19:06:51,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 19:06:51,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 19:06:51,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 19:06:51,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 19:06:51,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 19:06:51,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 19:06:51,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 19:06:51,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 19:06:51,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 19:06:51,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 19:06:51,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 19:06:51,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 19:06:51,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 19:06:51,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 19:06:51,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 19:06:51,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 19:06:51,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 19:06:51,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 19:06:51,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 19:06:51,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 19:06:51,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 19:06:51,281 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 19:06:51,304 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 19:06:51,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 19:06:51,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 19:06:51,308 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 19:06:51,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 19:06:51,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 19:06:51,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 19:06:51,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 19:06:51,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 19:06:51,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 19:06:51,311 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 19:06:51,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 19:06:51,312 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 19:06:51,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 19:06:51,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 19:06:51,313 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 19:06:51,313 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 19:06:51,313 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 19:06:51,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:06:51,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 19:06:51,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 19:06:51,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 19:06:51,314 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 19:06:51,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 19:06:51,650 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 19:06:51,654 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 19:06:51,656 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 19:06:51,657 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 19:06:51,657 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-08-22 19:06:51,757 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/228b9dae2/47563290b33b447ab50661b8e29edd81/FLAG5af4c90dc [2020-08-22 19:06:52,494 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 19:06:52,495 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-08-22 19:06:52,529 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/228b9dae2/47563290b33b447ab50661b8e29edd81/FLAG5af4c90dc [2020-08-22 19:06:52,797 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/228b9dae2/47563290b33b447ab50661b8e29edd81 [2020-08-22 19:06:52,810 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 19:06:52,812 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 19:06:52,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 19:06:52,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 19:06:52,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 19:06:52,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:06:52" (1/1) ... [2020-08-22 19:06:52,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b417b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:52, skipping insertion in model container [2020-08-22 19:06:52,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:06:52" (1/1) ... [2020-08-22 19:06:52,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 19:06:52,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 19:06:53,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:06:53,514 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 19:06:53,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:06:53,662 INFO L208 MainTranslator]: Completed translation [2020-08-22 19:06:53,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:53 WrapperNode [2020-08-22 19:06:53,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 19:06:53,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 19:06:53,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 19:06:53,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 19:06:53,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:53" (1/1) ... [2020-08-22 19:06:53,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:53" (1/1) ... [2020-08-22 19:06:53,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:53" (1/1) ... [2020-08-22 19:06:53,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:53" (1/1) ... [2020-08-22 19:06:53,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:53" (1/1) ... [2020-08-22 19:06:53,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:53" (1/1) ... [2020-08-22 19:06:53,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:53" (1/1) ... [2020-08-22 19:06:53,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 19:06:53,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 19:06:53,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 19:06:53,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 19:06:53,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:06:53,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 19:06:53,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 19:06:53,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-08-22 19:06:53,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-08-22 19:06:53,851 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-22 19:06:53,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-22 19:06:53,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-08-22 19:06:53,851 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-08-22 19:06:53,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-08-22 19:06:53,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-08-22 19:06:53,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-08-22 19:06:53,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-08-22 19:06:53,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-08-22 19:06:53,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-08-22 19:06:53,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-08-22 19:06:53,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-08-22 19:06:53,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-08-22 19:06:53,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-08-22 19:06:53,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-08-22 19:06:53,854 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-08-22 19:06:53,854 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 19:06:53,854 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-08-22 19:06:53,855 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-08-22 19:06:53,855 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-22 19:06:53,855 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-22 19:06:53,855 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-22 19:06:53,855 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-22 19:06:53,856 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-22 19:06:53,856 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-22 19:06:53,856 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-22 19:06:53,856 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-22 19:06:53,856 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-22 19:06:53,857 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-22 19:06:53,857 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-22 19:06:53,857 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-22 19:06:53,857 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-22 19:06:53,857 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-22 19:06:53,858 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-22 19:06:53,858 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-22 19:06:53,858 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-22 19:06:53,858 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-22 19:06:53,858 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-22 19:06:53,858 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-22 19:06:53,859 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-22 19:06:53,859 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-22 19:06:53,859 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-22 19:06:53,859 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-22 19:06:53,859 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-22 19:06:53,859 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-22 19:06:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-22 19:06:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-22 19:06:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-22 19:06:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-22 19:06:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-22 19:06:53,860 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-22 19:06:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-22 19:06:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-22 19:06:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-22 19:06:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-22 19:06:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-22 19:06:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-22 19:06:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-22 19:06:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-22 19:06:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-22 19:06:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-22 19:06:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-22 19:06:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-22 19:06:53,862 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-22 19:06:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-22 19:06:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-22 19:06:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-22 19:06:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-22 19:06:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-22 19:06:53,863 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 19:06:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-22 19:06:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-22 19:06:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 19:06:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-22 19:06:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-22 19:06:53,864 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-22 19:06:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-22 19:06:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 19:06:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-22 19:06:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-22 19:06:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 19:06:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-22 19:06:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-22 19:06:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-22 19:06:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-22 19:06:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-22 19:06:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-22 19:06:53,867 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-22 19:06:53,867 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-22 19:06:53,867 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-22 19:06:53,867 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-22 19:06:53,867 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-22 19:06:53,867 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-22 19:06:53,867 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-22 19:06:53,868 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-22 19:06:53,868 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-22 19:06:53,868 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-22 19:06:53,868 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-22 19:06:53,868 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-22 19:06:53,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-22 19:06:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-22 19:06:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-22 19:06:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-22 19:06:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-22 19:06:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-22 19:06:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-22 19:06:53,869 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-22 19:06:53,870 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-22 19:06:53,870 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-22 19:06:53,870 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-22 19:06:53,870 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-22 19:06:53,870 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-22 19:06:53,870 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-22 19:06:53,870 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-22 19:06:53,871 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-22 19:06:53,871 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-22 19:06:53,871 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-22 19:06:53,871 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-08-22 19:06:53,871 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-22 19:06:53,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 19:06:53,872 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-22 19:06:53,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 19:06:53,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-22 19:06:53,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 19:06:53,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-08-22 19:06:53,873 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-08-22 19:06:53,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 19:06:53,873 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-08-22 19:06:53,873 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-08-22 19:06:53,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-08-22 19:06:53,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 19:06:53,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-08-22 19:06:53,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-08-22 19:06:53,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-08-22 19:06:53,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-08-22 19:06:53,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-08-22 19:06:53,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-08-22 19:06:53,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-08-22 19:06:53,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-08-22 19:06:53,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 19:06:53,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 19:06:53,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 19:06:53,875 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-08-22 19:06:53,876 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 19:06:53,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 19:06:53,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 19:06:53,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-22 19:06:53,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 19:06:54,799 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 19:06:54,800 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-08-22 19:06:54,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:06:54 BoogieIcfgContainer [2020-08-22 19:06:54,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 19:06:54,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 19:06:54,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 19:06:54,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 19:06:54,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 07:06:52" (1/3) ... [2020-08-22 19:06:54,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3941f305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:06:54, skipping insertion in model container [2020-08-22 19:06:54,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:06:53" (2/3) ... [2020-08-22 19:06:54,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3941f305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:06:54, skipping insertion in model container [2020-08-22 19:06:54,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:06:54" (3/3) ... [2020-08-22 19:06:54,820 INFO L109 eAbstractionObserver]: Analyzing ICFG test_add-1.i [2020-08-22 19:06:54,837 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 19:06:54,852 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 19:06:54,874 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 19:06:54,909 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 19:06:54,909 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 19:06:54,910 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 19:06:54,910 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 19:06:54,910 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 19:06:54,910 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 19:06:54,910 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 19:06:54,911 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 19:06:54,947 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2020-08-22 19:06:55,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-08-22 19:06:55,013 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:06:55,015 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] [2020-08-22 19:06:55,016 INFO L427 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:06:55,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:06:55,027 INFO L82 PathProgramCache]: Analyzing trace with hash -773204813, now seen corresponding path program 1 times [2020-08-22 19:06:55,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:06:55,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339733781] [2020-08-22 19:06:55,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:06:55,134 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:06:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:55,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:06:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:55,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:06:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:55,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 19:06:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:55,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-22 19:06:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:55,585 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-08-22 19:06:55,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339733781] [2020-08-22 19:06:55,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:06:55,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 19:06:55,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049273186] [2020-08-22 19:06:55,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 19:06:55,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:06:55,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 19:06:55,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 19:06:55,625 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 6 states. [2020-08-22 19:06:56,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:06:56,342 INFO L93 Difference]: Finished difference Result 184 states and 205 transitions. [2020-08-22 19:06:56,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 19:06:56,345 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-08-22 19:06:56,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:06:56,360 INFO L225 Difference]: With dead ends: 184 [2020-08-22 19:06:56,361 INFO L226 Difference]: Without dead ends: 95 [2020-08-22 19:06:56,367 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-08-22 19:06:56,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-08-22 19:06:56,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 87. [2020-08-22 19:06:56,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-08-22 19:06:56,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2020-08-22 19:06:56,462 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 50 [2020-08-22 19:06:56,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:06:56,464 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2020-08-22 19:06:56,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 19:06:56,464 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2020-08-22 19:06:56,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-22 19:06:56,470 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:06:56,470 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] [2020-08-22 19:06:56,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 19:06:56,471 INFO L427 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:06:56,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:06:56,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1962919132, now seen corresponding path program 1 times [2020-08-22 19:06:56,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:06:56,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708543275] [2020-08-22 19:06:56,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:06:56,482 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:06:56,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:56,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:06:56,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:56,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:06:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:56,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 19:06:56,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:56,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 19:06:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:56,691 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-08-22 19:06:56,692 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708543275] [2020-08-22 19:06:56,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:06:56,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 19:06:56,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090492279] [2020-08-22 19:06:56,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 19:06:56,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:06:56,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 19:06:56,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 19:06:56,696 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand 6 states. [2020-08-22 19:06:57,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:06:57,271 INFO L93 Difference]: Finished difference Result 102 states and 106 transitions. [2020-08-22 19:06:57,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 19:06:57,271 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-08-22 19:06:57,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:06:57,274 INFO L225 Difference]: With dead ends: 102 [2020-08-22 19:06:57,275 INFO L226 Difference]: Without dead ends: 95 [2020-08-22 19:06:57,277 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-08-22 19:06:57,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-08-22 19:06:57,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 87. [2020-08-22 19:06:57,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-08-22 19:06:57,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 90 transitions. [2020-08-22 19:06:57,300 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 90 transitions. Word has length 53 [2020-08-22 19:06:57,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:06:57,301 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 90 transitions. [2020-08-22 19:06:57,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 19:06:57,302 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 90 transitions. [2020-08-22 19:06:57,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-08-22 19:06:57,304 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:06:57,304 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] [2020-08-22 19:06:57,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 19:06:57,305 INFO L427 AbstractCegarLoop]: === Iteration 3 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:06:57,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:06:57,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1545179603, now seen corresponding path program 1 times [2020-08-22 19:06:57,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:06:57,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794412899] [2020-08-22 19:06:57,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:06:57,312 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:06:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:57,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:06:57,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:57,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 19:06:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:57,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 19:06:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:57,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 19:06:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:06:57,760 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-22 19:06:57,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794412899] [2020-08-22 19:06:57,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:06:57,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-08-22 19:06:57,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847075989] [2020-08-22 19:06:57,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 19:06:57,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:06:57,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 19:06:57,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-08-22 19:06:57,765 INFO L87 Difference]: Start difference. First operand 87 states and 90 transitions. Second operand 14 states. [2020-08-22 19:06:59,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:06:59,983 INFO L93 Difference]: Finished difference Result 180 states and 188 transitions. [2020-08-22 19:06:59,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-08-22 19:06:59,984 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 56 [2020-08-22 19:06:59,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:06:59,986 INFO L225 Difference]: With dead ends: 180 [2020-08-22 19:06:59,987 INFO L226 Difference]: Without dead ends: 104 [2020-08-22 19:06:59,989 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=371, Invalid=1111, Unknown=0, NotChecked=0, Total=1482 [2020-08-22 19:06:59,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-08-22 19:07:00,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 92. [2020-08-22 19:07:00,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-08-22 19:07:00,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2020-08-22 19:07:00,014 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 56 [2020-08-22 19:07:00,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:07:00,015 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2020-08-22 19:07:00,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-22 19:07:00,015 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2020-08-22 19:07:00,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-08-22 19:07:00,018 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:07:00,019 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] [2020-08-22 19:07:00,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 19:07:00,019 INFO L427 AbstractCegarLoop]: === Iteration 4 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:07:00,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:07:00,020 INFO L82 PathProgramCache]: Analyzing trace with hash -2001576911, now seen corresponding path program 1 times [2020-08-22 19:07:00,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:07:00,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [857828831] [2020-08-22 19:07:00,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:07:00,028 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:07:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 19:07:00,129 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 19:07:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 19:07:00,191 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 19:07:00,262 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 19:07:00,263 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 19:07:00,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 19:07:00,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 07:07:00 BoogieIcfgContainer [2020-08-22 19:07:00,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 19:07:00,294 INFO L168 Benchmark]: Toolchain (without parser) took 7481.01 ms. Allocated memory was 139.5 MB in the beginning and 295.7 MB in the end (delta: 156.2 MB). Free memory was 101.8 MB in the beginning and 110.8 MB in the end (delta: -9.1 MB). Peak memory consumption was 147.2 MB. Max. memory is 7.1 GB. [2020-08-22 19:07:00,296 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-08-22 19:07:00,297 INFO L168 Benchmark]: CACSL2BoogieTranslator took 849.71 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 101.4 MB in the beginning and 165.5 MB in the end (delta: -64.1 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-08-22 19:07:00,298 INFO L168 Benchmark]: Boogie Preprocessor took 102.07 ms. Allocated memory is still 204.5 MB. Free memory was 165.5 MB in the beginning and 162.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-08-22 19:07:00,299 INFO L168 Benchmark]: RCFGBuilder took 1040.27 ms. Allocated memory is still 204.5 MB. Free memory was 162.6 MB in the beginning and 97.5 MB in the end (delta: 65.1 MB). Peak memory consumption was 65.1 MB. Max. memory is 7.1 GB. [2020-08-22 19:07:00,300 INFO L168 Benchmark]: TraceAbstraction took 5481.93 ms. Allocated memory was 204.5 MB in the beginning and 295.7 MB in the end (delta: 91.2 MB). Free memory was 97.5 MB in the beginning and 110.8 MB in the end (delta: -13.3 MB). Peak memory consumption was 77.9 MB. Max. memory is 7.1 GB. [2020-08-22 19:07:00,305 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 849.71 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 101.4 MB in the beginning and 165.5 MB in the end (delta: -64.1 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.07 ms. Allocated memory is still 204.5 MB. Free memory was 165.5 MB in the beginning and 162.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1040.27 ms. Allocated memory is still 204.5 MB. Free memory was 162.6 MB in the beginning and 97.5 MB in the end (delta: 65.1 MB). Peak memory consumption was 65.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5481.93 ms. Allocated memory was 204.5 MB in the beginning and 295.7 MB in the end (delta: 91.2 MB). Free memory was 97.5 MB in the beginning and 110.8 MB in the end (delta: -13.3 MB). Peak memory consumption was 77.9 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: 5.3s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 3.5s, 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, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 1.8s 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: 0.1s 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...