/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 0.2.0-b8ad66e [2020-10-23 20:39:34,634 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:39:34,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:39:34,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:39:34,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:39:34,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:39:34,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:39:34,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:39:34,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:39:34,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:39:34,735 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:39:34,748 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:39:34,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:39:34,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:39:34,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:39:34,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:39:34,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:39:34,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:39:34,785 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:39:34,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:39:34,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:39:34,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:39:34,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:39:34,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:39:34,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:39:34,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:39:34,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:39:34,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:39:34,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:39:34,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:39:34,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:39:34,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:39:34,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:39:34,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:39:34,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:39:34,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:39:34,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:39:34,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:39:34,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:39:34,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:39:34,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:39:34,814 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:39:34,827 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:39:34,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:39:34,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:39:34,829 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:39:34,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:39:34,829 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:39:34,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:39:34,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:39:34,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:39:34,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:39:34,830 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:39:34,830 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:39:34,831 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:39:34,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:39:34,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:39:34,831 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:39:34,832 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:39:34,832 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:39:34,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:39:34,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:39:34,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:39:34,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:39:34,833 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:39:35,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:39:35,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:39:35,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:39:35,257 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:39:35,258 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:39:35,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-10-23 20:39:35,339 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84c40d623/82ae1acda50c4dcebb5b9202b0fd5aed/FLAG1ddbffcf0 [2020-10-23 20:39:36,075 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:39:36,076 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-10-23 20:39:36,098 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84c40d623/82ae1acda50c4dcebb5b9202b0fd5aed/FLAG1ddbffcf0 [2020-10-23 20:39:36,258 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84c40d623/82ae1acda50c4dcebb5b9202b0fd5aed [2020-10-23 20:39:36,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:39:36,271 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:39:36,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:39:36,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:39:36,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:39:36,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:39:36" (1/1) ... [2020-10-23 20:39:36,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d131698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:39:36, skipping insertion in model container [2020-10-23 20:39:36,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:39:36" (1/1) ... [2020-10-23 20:39:36,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:39:36,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:39:36,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:39:36,818 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:39:36,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:39:37,029 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:39:37,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:39:37 WrapperNode [2020-10-23 20:39:37,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:39:37,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:39:37,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:39:37,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:39:37,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:39:37" (1/1) ... [2020-10-23 20:39:37,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:39:37" (1/1) ... [2020-10-23 20:39:37,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:39:37" (1/1) ... [2020-10-23 20:39:37,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:39:37" (1/1) ... [2020-10-23 20:39:37,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:39:37" (1/1) ... [2020-10-23 20:39:37,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:39:37" (1/1) ... [2020-10-23 20:39:37,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:39:37" (1/1) ... [2020-10-23 20:39:37,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:39:37,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:39:37,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:39:37,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:39:37,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:39:37" (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 [2020-10-23 20:39:37,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:39:37,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:39:37,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-23 20:39:37,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-23 20:39:37,182 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:39:37,182 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-23 20:39:37,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-23 20:39:37,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-10-23 20:39:37,183 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-10-23 20:39:37,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-10-23 20:39:37,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-10-23 20:39:37,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-10-23 20:39:37,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-10-23 20:39:37,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-10-23 20:39:37,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-10-23 20:39:37,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-10-23 20:39:37,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-23 20:39:37,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-10-23 20:39:37,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-10-23 20:39:37,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-10-23 20:39:37,185 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-23 20:39:37,185 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:39:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-23 20:39:37,185 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-23 20:39:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-23 20:39:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-23 20:39:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-23 20:39:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-23 20:39:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-23 20:39:37,186 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-23 20:39:37,187 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-23 20:39:37,187 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-23 20:39:37,187 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-23 20:39:37,187 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-23 20:39:37,187 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-23 20:39:37,187 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-23 20:39:37,188 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-23 20:39:37,188 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-23 20:39:37,188 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-23 20:39:37,188 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-23 20:39:37,188 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-23 20:39:37,188 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-23 20:39:37,189 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-23 20:39:37,189 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-23 20:39:37,189 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-23 20:39:37,189 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-23 20:39:37,189 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-23 20:39:37,189 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-23 20:39:37,190 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-23 20:39:37,190 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-23 20:39:37,190 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-23 20:39:37,190 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-23 20:39:37,190 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-23 20:39:37,190 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-23 20:39:37,191 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-23 20:39:37,191 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-23 20:39:37,191 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-23 20:39:37,191 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-23 20:39:37,191 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-23 20:39:37,191 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-23 20:39:37,191 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-23 20:39:37,192 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-23 20:39:37,192 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-23 20:39:37,192 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-23 20:39:37,192 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-23 20:39:37,192 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-23 20:39:37,192 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-23 20:39:37,193 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-23 20:39:37,193 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-23 20:39:37,193 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-23 20:39:37,193 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-23 20:39:37,193 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-23 20:39:37,193 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-23 20:39:37,193 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-23 20:39:37,194 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:39:37,194 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-23 20:39:37,194 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-23 20:39:37,194 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:39:37,194 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-23 20:39:37,194 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-23 20:39:37,194 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-23 20:39:37,195 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-23 20:39:37,195 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:39:37,195 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-23 20:39:37,195 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-23 20:39:37,195 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 20:39:37,195 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-23 20:39:37,196 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-23 20:39:37,196 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-23 20:39:37,196 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-23 20:39:37,196 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-23 20:39:37,196 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-23 20:39:37,196 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-23 20:39:37,196 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-23 20:39:37,197 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-23 20:39:37,197 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-23 20:39:37,197 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-23 20:39:37,197 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-23 20:39:37,197 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-23 20:39:37,197 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-23 20:39:37,197 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-23 20:39:37,198 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-23 20:39:37,198 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-23 20:39:37,198 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-23 20:39:37,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-23 20:39:37,198 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-23 20:39:37,198 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-23 20:39:37,198 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-23 20:39:37,199 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-23 20:39:37,199 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-23 20:39:37,199 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-23 20:39:37,199 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-23 20:39:37,199 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-23 20:39:37,199 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-23 20:39:37,199 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-23 20:39:37,200 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-23 20:39:37,200 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-23 20:39:37,200 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-23 20:39:37,200 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-23 20:39:37,200 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-23 20:39:37,200 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-23 20:39:37,200 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-23 20:39:37,201 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-23 20:39:37,201 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-23 20:39:37,201 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:39:37,201 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-23 20:39:37,201 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-23 20:39:37,201 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:39:37,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:39:37,202 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-23 20:39:37,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:39:37,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-23 20:39:37,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:39:37,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-10-23 20:39:37,202 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-10-23 20:39:37,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:39:37,203 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-10-23 20:39:37,203 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-10-23 20:39:37,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-10-23 20:39:37,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:39:37,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-10-23 20:39:37,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-10-23 20:39:37,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-10-23 20:39:37,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-10-23 20:39:37,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-23 20:39:37,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-10-23 20:39:37,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-10-23 20:39:37,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-10-23 20:39:37,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:39:37,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:39:37,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:39:37,205 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-23 20:39:37,205 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:39:37,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:39:37,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:39:37,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-23 20:39:37,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:39:38,031 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:39:38,031 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-23 20:39:38,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:39:38 BoogieIcfgContainer [2020-10-23 20:39:38,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:39:38,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:39:38,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:39:38,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:39:38,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:39:36" (1/3) ... [2020-10-23 20:39:38,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@663d6aa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:39:38, skipping insertion in model container [2020-10-23 20:39:38,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:39:37" (2/3) ... [2020-10-23 20:39:38,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@663d6aa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:39:38, skipping insertion in model container [2020-10-23 20:39:38,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:39:38" (3/3) ... [2020-10-23 20:39:38,049 INFO L111 eAbstractionObserver]: Analyzing ICFG test_add-1.i [2020-10-23 20:39:38,063 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:39:38,071 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 20:39:38,086 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 20:39:38,109 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:39:38,109 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:39:38,109 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:39:38,109 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:39:38,109 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:39:38,109 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:39:38,110 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:39:38,110 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:39:38,126 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2020-10-23 20:39:38,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-23 20:39:38,139 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:39:38,140 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, 1, 1, 1, 1, 1, 1] [2020-10-23 20:39:38,141 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:39:38,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:39:38,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1115190987, now seen corresponding path program 1 times [2020-10-23 20:39:38,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:39:38,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [304001854] [2020-10-23 20:39:38,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:39:38,248 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:39:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:39:38,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:39:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:39:38,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 20:39:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:39:38,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:39:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:39:38,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-23 20:39:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:39:38,626 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-23 20:39:38,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [304001854] [2020-10-23 20:39:38,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:39:38,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:39:38,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668452966] [2020-10-23 20:39:38,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:39:38,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:39:38,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:39:38,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:39:38,654 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 6 states. [2020-10-23 20:39:39,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:39:39,290 INFO L93 Difference]: Finished difference Result 195 states and 220 transitions. [2020-10-23 20:39:39,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 20:39:39,292 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2020-10-23 20:39:39,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:39:39,305 INFO L225 Difference]: With dead ends: 195 [2020-10-23 20:39:39,306 INFO L226 Difference]: Without dead ends: 100 [2020-10-23 20:39:39,310 INFO L677 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 [2020-10-23 20:39:39,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-23 20:39:39,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 93. [2020-10-23 20:39:39,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-23 20:39:39,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 97 transitions. [2020-10-23 20:39:39,379 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 97 transitions. Word has length 56 [2020-10-23 20:39:39,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:39:39,380 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 97 transitions. [2020-10-23 20:39:39,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:39:39,380 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 97 transitions. [2020-10-23 20:39:39,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-23 20:39:39,384 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:39:39,384 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] [2020-10-23 20:39:39,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:39:39,385 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:39:39,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:39:39,386 INFO L82 PathProgramCache]: Analyzing trace with hash -2061402926, now seen corresponding path program 1 times [2020-10-23 20:39:39,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:39:39,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1049944047] [2020-10-23 20:39:39,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:39:39,393 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:39:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:39:39,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:39:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:39:39,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 20:39:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:39:39,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:39:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:39:39,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-23 20:39:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:39:39,628 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-23 20:39:39,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1049944047] [2020-10-23 20:39:39,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:39:39,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:39:39,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936707582] [2020-10-23 20:39:39,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:39:39,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:39:39,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:39:39,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:39:39,632 INFO L87 Difference]: Start difference. First operand 93 states and 97 transitions. Second operand 6 states. [2020-10-23 20:39:40,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:39:40,121 INFO L93 Difference]: Finished difference Result 109 states and 114 transitions. [2020-10-23 20:39:40,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-23 20:39:40,121 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2020-10-23 20:39:40,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:39:40,124 INFO L225 Difference]: With dead ends: 109 [2020-10-23 20:39:40,124 INFO L226 Difference]: Without dead ends: 100 [2020-10-23 20:39:40,126 INFO L677 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 [2020-10-23 20:39:40,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-23 20:39:40,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 93. [2020-10-23 20:39:40,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-23 20:39:40,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 96 transitions. [2020-10-23 20:39:40,150 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 96 transitions. Word has length 59 [2020-10-23 20:39:40,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:39:40,151 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 96 transitions. [2020-10-23 20:39:40,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:39:40,151 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 96 transitions. [2020-10-23 20:39:40,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-23 20:39:40,154 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:39:40,154 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, 1, 1, 1, 1, 1, 1] [2020-10-23 20:39:40,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:39:40,154 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:39:40,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:39:40,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1961317419, now seen corresponding path program 1 times [2020-10-23 20:39:40,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:39:40,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946218329] [2020-10-23 20:39:40,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:39:40,162 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:39:40,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:39:40,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:39:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:39:40,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-23 20:39:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:39:40,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:39:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:39:40,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-23 20:39:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:39:40,710 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-23 20:39:40,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946218329] [2020-10-23 20:39:40,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:39:40,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 20:39:40,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798584012] [2020-10-23 20:39:40,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 20:39:40,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:39:40,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 20:39:40,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-10-23 20:39:40,715 INFO L87 Difference]: Start difference. First operand 93 states and 96 transitions. Second operand 14 states. [2020-10-23 20:39:43,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:39:43,296 INFO L93 Difference]: Finished difference Result 188 states and 196 transitions. [2020-10-23 20:39:43,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-23 20:39:43,301 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 62 [2020-10-23 20:39:43,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:39:43,304 INFO L225 Difference]: With dead ends: 188 [2020-10-23 20:39:43,304 INFO L226 Difference]: Without dead ends: 110 [2020-10-23 20:39:43,306 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=371, Invalid=1111, Unknown=0, NotChecked=0, Total=1482 [2020-10-23 20:39:43,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-23 20:39:43,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 98. [2020-10-23 20:39:43,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-23 20:39:43,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 98 transitions. [2020-10-23 20:39:43,335 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 98 transitions. Word has length 62 [2020-10-23 20:39:43,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:39:43,336 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 98 transitions. [2020-10-23 20:39:43,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 20:39:43,336 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 98 transitions. [2020-10-23 20:39:43,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-23 20:39:43,338 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:39:43,338 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, 1, 1, 1, 1, 1, 1] [2020-10-23 20:39:43,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:39:43,339 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:39:43,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:39:43,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1830296653, now seen corresponding path program 1 times [2020-10-23 20:39:43,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:39:43,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [746434117] [2020-10-23 20:39:43,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:39:43,347 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:39:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:39:43,390 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:39:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:39:43,425 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:39:43,475 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:39:43,475 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:39:43,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:39:43,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:39:43 BoogieIcfgContainer [2020-10-23 20:39:43,503 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:39:43,506 INFO L168 Benchmark]: Toolchain (without parser) took 7239.39 ms. Allocated memory was 153.1 MB in the beginning and 243.3 MB in the end (delta: 90.2 MB). Free memory was 135.6 MB in the beginning and 86.7 MB in the end (delta: 49.0 MB). Peak memory consumption was 139.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:39:43,507 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 153.1 MB. Free memory is still 126.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:39:43,508 INFO L168 Benchmark]: CACSL2BoogieTranslator took 754.51 ms. Allocated memory is still 153.1 MB. Free memory was 135.2 MB in the beginning and 120.5 MB in the end (delta: 14.6 MB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:39:43,509 INFO L168 Benchmark]: Boogie Preprocessor took 76.59 ms. Allocated memory is still 153.1 MB. Free memory was 120.5 MB in the beginning and 117.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:39:43,510 INFO L168 Benchmark]: RCFGBuilder took 926.14 ms. Allocated memory was 153.1 MB in the beginning and 202.4 MB in the end (delta: 49.3 MB). Free memory was 117.4 MB in the beginning and 147.0 MB in the end (delta: -29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:39:43,511 INFO L168 Benchmark]: TraceAbstraction took 5465.22 ms. Allocated memory was 202.4 MB in the beginning and 243.3 MB in the end (delta: 40.9 MB). Free memory was 146.4 MB in the beginning and 86.7 MB in the end (delta: 59.8 MB). Peak memory consumption was 100.7 MB. Max. memory is 8.0 GB. [2020-10-23 20:39:43,514 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 153.1 MB. Free memory is still 126.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 754.51 ms. Allocated memory is still 153.1 MB. Free memory was 135.2 MB in the beginning and 120.5 MB in the end (delta: 14.6 MB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 76.59 ms. Allocated memory is still 153.1 MB. Free memory was 120.5 MB in the beginning and 117.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 926.14 ms. Allocated memory was 153.1 MB in the beginning and 202.4 MB in the end (delta: 49.3 MB). Free memory was 117.4 MB in the beginning and 147.0 MB in the end (delta: -29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5465.22 ms. Allocated memory was 202.4 MB in the beginning and 243.3 MB in the end (delta: 40.9 MB). Free memory was 146.4 MB in the beginning and 86.7 MB in the end (delta: 59.8 MB). Peak memory consumption was 100.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 562]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L662] struct ldv_list_head s1 = { &(s1), &(s1) }; [L671] CALL foo() [L665] int j = __VERIFIER_nondet_int(); [L666] CALL ldv_set_add(j, &s1) [L633] CALL, EXPR ldv_is_in_set(new, s) [L651] struct ldv_list_element *m; [L652] EXPR (s)->next [L652] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L652] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L652] COND FALSE !(&m->list != (s)) [L657] return 0; [L633] RET, EXPR ldv_is_in_set(new, s) [L633] COND TRUE !ldv_is_in_set(new, s) [L634] struct ldv_list_element *le; [L635] CALL, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L576] void *ptr = malloc(size); [L577] CALL assume_abort_if_not(ptr!=0) [L565] COND FALSE !(!cond) [L577] RET assume_abort_if_not(ptr!=0) [L578] return ptr; [L635] RET, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L635] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L636] le->e = new [L637] CALL ldv_list_add(&le->list, s) [L605] EXPR head->next [L605] CALL __ldv_list_add(new, head, head->next) [L593] next->prev = new [L594] new->next = next [L595] new->prev = prev [L596] prev->next = new [L605] RET __ldv_list_add(new, head, head->next) [L637] RET ldv_list_add(&le->list, s) [L666] RET ldv_set_add(j, &s1) [L667] CALL ldv_is_in_set(j, &s1) [L651] struct ldv_list_element *m; [L652] EXPR (s)->next [L652] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L652] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L652] COND TRUE &m->list != (s) [L653] EXPR m->e [L653] COND TRUE m->e == e [L654] return 1; [L667] RET ldv_is_in_set(j, &s1) [L667] COND TRUE ldv_is_in_set(j, &s1) [L667] CALL reach_error() [L562] COND FALSE !(0) [L562] __assert_fail ("0", "model/ldv.h", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 191 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.3s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 253 SDtfs, 748 SDslu, 216 SDs, 0 SdLazy, 931 SolverSat, 130 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred 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, 26 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...