/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 0.2.0-7d8eed3 [2020-11-07 00:56:39,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:56:39,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:56:40,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:56:40,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:56:40,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:56:40,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:56:40,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:56:40,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:56:40,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:56:40,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:56:40,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:56:40,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:56:40,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:56:40,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:56:40,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:56:40,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:56:40,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:56:40,087 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:56:40,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:56:40,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:56:40,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:56:40,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:56:40,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:56:40,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:56:40,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:56:40,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:56:40,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:56:40,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:56:40,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:56:40,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:56:40,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:56:40,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:56:40,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:56:40,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:56:40,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:56:40,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:56:40,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:56:40,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:56:40,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:56:40,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:56:40,134 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:56:40,146 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:56:40,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:56:40,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:56:40,148 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:56:40,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:56:40,148 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:56:40,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:56:40,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:56:40,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:56:40,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:56:40,149 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:56:40,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:56:40,150 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:56:40,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:56:40,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:56:40,150 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:56:40,151 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:56:40,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:56:40,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:56:40,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:56:40,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:56:40,151 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:56:40,152 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:56:40,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:56:40,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:56:40,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:56:40,542 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:56:40,543 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:56:40,545 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-11-07 00:56:40,627 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8e6f8d6f/b6e445567317470482d394363bcdfb01/FLAGf558696f4 [2020-11-07 00:56:41,333 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:56:41,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-sets/test_add-1.i [2020-11-07 00:56:41,354 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8e6f8d6f/b6e445567317470482d394363bcdfb01/FLAGf558696f4 [2020-11-07 00:56:41,582 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8e6f8d6f/b6e445567317470482d394363bcdfb01 [2020-11-07 00:56:41,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:56:41,592 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:56:41,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:56:41,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:56:41,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:56:41,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:56:41" (1/1) ... [2020-11-07 00:56:41,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dc64ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:41, skipping insertion in model container [2020-11-07 00:56:41,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:56:41" (1/1) ... [2020-11-07 00:56:41,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:56:41,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:56:41,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:56:41,987 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:56:42,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:56:42,183 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:56:42,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:42 WrapperNode [2020-11-07 00:56:42,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:56:42,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:56:42,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:56:42,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:56:42,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:42" (1/1) ... [2020-11-07 00:56:42,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:42" (1/1) ... [2020-11-07 00:56:42,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:42" (1/1) ... [2020-11-07 00:56:42,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:42" (1/1) ... [2020-11-07 00:56:42,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:42" (1/1) ... [2020-11-07 00:56:42,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:42" (1/1) ... [2020-11-07 00:56:42,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:42" (1/1) ... [2020-11-07 00:56:42,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:56:42,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:56:42,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:56:42,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:56:42,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:42" (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 [2020-11-07 00:56:42,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:56:42,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:56:42,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-07 00:56:42,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-07 00:56:42,387 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:56:42,387 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-11-07 00:56:42,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-11-07 00:56:42,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-11-07 00:56:42,388 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-11-07 00:56:42,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-11-07 00:56:42,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-11-07 00:56:42,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-11-07 00:56:42,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-11-07 00:56:42,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-11-07 00:56:42,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-11-07 00:56:42,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-11-07 00:56:42,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-11-07 00:56:42,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-11-07 00:56:42,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-11-07 00:56:42,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-11-07 00:56:42,390 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-11-07 00:56:42,390 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:56:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-07 00:56:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-07 00:56:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-07 00:56:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-07 00:56:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-07 00:56:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-07 00:56:42,391 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-07 00:56:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-07 00:56:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-07 00:56:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-07 00:56:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-07 00:56:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-07 00:56:42,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-07 00:56:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-07 00:56:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-07 00:56:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-07 00:56:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-07 00:56:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-07 00:56:42,393 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-07 00:56:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-07 00:56:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-07 00:56:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-07 00:56:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-07 00:56:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-07 00:56:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-07 00:56:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-07 00:56:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-07 00:56:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-07 00:56:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-07 00:56:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-07 00:56:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-07 00:56:42,395 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-07 00:56:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-07 00:56:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-07 00:56:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-07 00:56:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-07 00:56:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-07 00:56:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-07 00:56:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-07 00:56:42,396 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-07 00:56:42,397 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-07 00:56:42,397 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-07 00:56:42,397 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-07 00:56:42,397 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-07 00:56:42,397 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-07 00:56:42,397 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-07 00:56:42,398 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-07 00:56:42,398 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-07 00:56:42,398 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-07 00:56:42,398 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-07 00:56:42,398 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-07 00:56:42,398 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-07 00:56:42,398 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:56:42,399 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-07 00:56:42,399 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-07 00:56:42,399 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:56:42,399 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-07 00:56:42,399 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-07 00:56:42,399 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-07 00:56:42,400 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-07 00:56:42,400 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:56:42,400 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-07 00:56:42,400 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-07 00:56:42,400 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-07 00:56:42,400 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-07 00:56:42,400 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-07 00:56:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-07 00:56:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-07 00:56:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-07 00:56:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-07 00:56:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-07 00:56:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-07 00:56:42,401 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-07 00:56:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-07 00:56:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-07 00:56:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-07 00:56:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-07 00:56:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-07 00:56:42,402 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-07 00:56:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-07 00:56:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-07 00:56:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-07 00:56:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-07 00:56:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-07 00:56:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-07 00:56:42,403 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-07 00:56:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-07 00:56:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-07 00:56:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-07 00:56:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-07 00:56:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-07 00:56:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-07 00:56:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-07 00:56:42,404 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-07 00:56:42,405 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-07 00:56:42,405 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-07 00:56:42,405 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-07 00:56:42,405 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-07 00:56:42,405 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-07 00:56:42,405 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-07 00:56:42,405 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-07 00:56:42,405 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-07 00:56:42,406 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:56:42,406 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-07 00:56:42,406 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-07 00:56:42,406 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:56:42,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:56:42,406 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-11-07 00:56:42,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:56:42,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-11-07 00:56:42,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:56:42,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-11-07 00:56:42,407 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-11-07 00:56:42,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:56:42,407 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-11-07 00:56:42,407 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-11-07 00:56:42,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-11-07 00:56:42,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:56:42,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-11-07 00:56:42,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-11-07 00:56:42,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-11-07 00:56:42,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-11-07 00:56:42,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-11-07 00:56:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-11-07 00:56:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-11-07 00:56:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-11-07 00:56:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:56:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:56:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:56:42,409 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-11-07 00:56:42,410 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:56:42,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:56:42,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:56:42,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-07 00:56:42,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:56:43,444 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:56:43,444 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-11-07 00:56:43,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:56:43 BoogieIcfgContainer [2020-11-07 00:56:43,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:56:43,448 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:56:43,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:56:43,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:56:43,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:56:41" (1/3) ... [2020-11-07 00:56:43,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7961d352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:56:43, skipping insertion in model container [2020-11-07 00:56:43,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:56:42" (2/3) ... [2020-11-07 00:56:43,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7961d352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:56:43, skipping insertion in model container [2020-11-07 00:56:43,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:56:43" (3/3) ... [2020-11-07 00:56:43,456 INFO L111 eAbstractionObserver]: Analyzing ICFG test_add-1.i [2020-11-07 00:56:43,471 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:56:43,475 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 00:56:43,488 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 00:56:43,512 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:56:43,512 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:56:43,512 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:56:43,512 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:56:43,512 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:56:43,513 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:56:43,513 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:56:43,513 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:56:43,529 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2020-11-07 00:56:43,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-07 00:56:43,542 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:56:43,543 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] [2020-11-07 00:56:43,543 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:56:43,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:56:43,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1115190987, now seen corresponding path program 1 times [2020-11-07 00:56:43,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:56:43,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [772788154] [2020-11-07 00:56:43,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:56:43,643 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:56:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:56:43,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:56:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:56:43,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:56:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:56:43,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:56:43,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:56:44,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 00:56:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:56:44,079 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-07 00:56:44,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [772788154] [2020-11-07 00:56:44,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:56:44,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:56:44,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6396687] [2020-11-07 00:56:44,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:56:44,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:56:44,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:56:44,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:56:44,113 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 6 states. [2020-11-07 00:56:45,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:56:45,024 INFO L93 Difference]: Finished difference Result 195 states and 220 transitions. [2020-11-07 00:56:45,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-07 00:56:45,026 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2020-11-07 00:56:45,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:56:45,038 INFO L225 Difference]: With dead ends: 195 [2020-11-07 00:56:45,039 INFO L226 Difference]: Without dead ends: 100 [2020-11-07 00:56:45,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:56:45,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-11-07 00:56:45,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 93. [2020-11-07 00:56:45,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-11-07 00:56:45,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 97 transitions. [2020-11-07 00:56:45,107 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 97 transitions. Word has length 56 [2020-11-07 00:56:45,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:56:45,107 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 97 transitions. [2020-11-07 00:56:45,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:56:45,108 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 97 transitions. [2020-11-07 00:56:45,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-07 00:56:45,111 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:56:45,111 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] [2020-11-07 00:56:45,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:56:45,112 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:56:45,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:56:45,115 INFO L82 PathProgramCache]: Analyzing trace with hash -2061402926, now seen corresponding path program 1 times [2020-11-07 00:56:45,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:56:45,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2121518507] [2020-11-07 00:56:45,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:56:45,122 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:56:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:56:45,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:56:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:56:45,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:56:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:56:45,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:56:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:56:45,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:56:45,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:56:45,334 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-07 00:56:45,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2121518507] [2020-11-07 00:56:45,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:56:45,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:56:45,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894521586] [2020-11-07 00:56:45,337 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:56:45,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:56:45,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:56:45,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:56:45,340 INFO L87 Difference]: Start difference. First operand 93 states and 97 transitions. Second operand 6 states. [2020-11-07 00:56:46,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:56:46,020 INFO L93 Difference]: Finished difference Result 109 states and 114 transitions. [2020-11-07 00:56:46,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-07 00:56:46,021 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2020-11-07 00:56:46,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:56:46,024 INFO L225 Difference]: With dead ends: 109 [2020-11-07 00:56:46,024 INFO L226 Difference]: Without dead ends: 100 [2020-11-07 00:56:46,025 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 [2020-11-07 00:56:46,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-11-07 00:56:46,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 93. [2020-11-07 00:56:46,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-11-07 00:56:46,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 96 transitions. [2020-11-07 00:56:46,049 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 96 transitions. Word has length 59 [2020-11-07 00:56:46,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:56:46,050 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 96 transitions. [2020-11-07 00:56:46,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:56:46,050 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 96 transitions. [2020-11-07 00:56:46,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-11-07 00:56:46,052 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:56:46,052 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] [2020-11-07 00:56:46,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:56:46,053 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:56:46,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:56:46,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1961317419, now seen corresponding path program 1 times [2020-11-07 00:56:46,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:56:46,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507795230] [2020-11-07 00:56:46,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:56:46,059 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:56:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:56:46,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:56:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:56:46,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:56:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:56:46,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:56:46,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:56:46,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-07 00:56:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:56:46,535 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-07 00:56:46,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [507795230] [2020-11-07 00:56:46,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:56:46,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-11-07 00:56:46,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043576341] [2020-11-07 00:56:46,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-07 00:56:46,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:56:46,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-07 00:56:46,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-11-07 00:56:46,537 INFO L87 Difference]: Start difference. First operand 93 states and 96 transitions. Second operand 14 states. [2020-11-07 00:56:48,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:56:48,910 INFO L93 Difference]: Finished difference Result 188 states and 196 transitions. [2020-11-07 00:56:48,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-11-07 00:56:48,912 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 62 [2020-11-07 00:56:48,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:56:48,914 INFO L225 Difference]: With dead ends: 188 [2020-11-07 00:56:48,914 INFO L226 Difference]: Without dead ends: 110 [2020-11-07 00:56:48,919 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=371, Invalid=1111, Unknown=0, NotChecked=0, Total=1482 [2020-11-07 00:56:48,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-11-07 00:56:48,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 98. [2020-11-07 00:56:48,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-11-07 00:56:48,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 98 transitions. [2020-11-07 00:56:48,964 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 98 transitions. Word has length 62 [2020-11-07 00:56:48,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:56:48,966 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 98 transitions. [2020-11-07 00:56:48,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-07 00:56:48,967 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 98 transitions. [2020-11-07 00:56:48,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-11-07 00:56:48,978 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:56:48,979 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] [2020-11-07 00:56:48,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:56:48,981 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:56:48,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:56:48,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1830296653, now seen corresponding path program 1 times [2020-11-07 00:56:48,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:56:48,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [819997408] [2020-11-07 00:56:48,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:56:48,990 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:56:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:56:49,070 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:56:49,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:56:49,135 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:56:49,199 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:56:49,199 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:56:49,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:56:49,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:56:49 BoogieIcfgContainer [2020-11-07 00:56:49,233 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:56:49,238 INFO L168 Benchmark]: Toolchain (without parser) took 7647.34 ms. Allocated memory was 164.6 MB in the beginning and 252.7 MB in the end (delta: 88.1 MB). Free memory was 139.4 MB in the beginning and 157.2 MB in the end (delta: -17.8 MB). Peak memory consumption was 70.4 MB. Max. memory is 8.0 GB. [2020-11-07 00:56:49,239 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 164.6 MB. Free memory is still 140.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:56:49,240 INFO L168 Benchmark]: CACSL2BoogieTranslator took 590.25 ms. Allocated memory is still 164.6 MB. Free memory was 138.7 MB in the beginning and 144.5 MB in the end (delta: -5.8 MB). Peak memory consumption was 30.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:56:49,241 INFO L168 Benchmark]: Boogie Preprocessor took 119.31 ms. Allocated memory is still 164.6 MB. Free memory was 144.5 MB in the beginning and 140.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:56:49,243 INFO L168 Benchmark]: RCFGBuilder took 1141.76 ms. Allocated memory was 164.6 MB in the beginning and 199.2 MB in the end (delta: 34.6 MB). Free memory was 140.9 MB in the beginning and 170.0 MB in the end (delta: -29.2 MB). Peak memory consumption was 54.7 MB. Max. memory is 8.0 GB. [2020-11-07 00:56:49,246 INFO L168 Benchmark]: TraceAbstraction took 5784.26 ms. Allocated memory was 199.2 MB in the beginning and 252.7 MB in the end (delta: 53.5 MB). Free memory was 169.5 MB in the beginning and 157.2 MB in the end (delta: 12.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 8.0 GB. [2020-11-07 00:56:49,255 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 164.6 MB. Free memory is still 140.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 590.25 ms. Allocated memory is still 164.6 MB. Free memory was 138.7 MB in the beginning and 144.5 MB in the end (delta: -5.8 MB). Peak memory consumption was 30.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 119.31 ms. Allocated memory is still 164.6 MB. Free memory was 144.5 MB in the beginning and 140.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1141.76 ms. Allocated memory was 164.6 MB in the beginning and 199.2 MB in the end (delta: 34.6 MB). Free memory was 140.9 MB in the beginning and 170.0 MB in the end (delta: -29.2 MB). Peak memory consumption was 54.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5784.26 ms. Allocated memory was 199.2 MB in the beginning and 252.7 MB in the end (delta: 53.5 MB). Free memory was 169.5 MB in the beginning and 157.2 MB in the end (delta: 12.3 MB). Peak memory consumption was 65.3 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: 5.6s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 4.0s, 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, 1.5s 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...