/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/heap-data/quick_sort_split.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 20:42:26,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 20:42:26,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 20:42:26,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 20:42:26,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 20:42:26,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 20:42:26,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 20:42:26,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 20:42:26,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 20:42:26,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 20:42:26,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 20:42:26,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 20:42:26,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 20:42:26,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 20:42:26,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 20:42:26,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 20:42:26,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 20:42:26,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 20:42:26,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 20:42:26,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 20:42:26,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 20:42:26,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 20:42:26,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 20:42:26,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 20:42:26,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-21 20:42:26,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-21 20:42:26,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-21 20:42:26,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-21 20:42:26,367 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-21 20:42:26,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-21 20:42:26,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 20:42:26,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 20:42:26,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 20:42:26,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 20:42:26,372 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 20:42:26,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 20:42:26,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 20:42:26,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 20:42:26,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 20:42:26,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 20:42:26,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 20:42:26,376 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 20:42:26,389 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 20:42:26,389 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 20:42:26,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 20:42:26,391 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 20:42:26,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 20:42:26,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 20:42:26,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 20:42:26,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 20:42:26,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 20:42:26,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 20:42:26,393 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 20:42:26,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 20:42:26,393 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 20:42:26,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 20:42:26,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 20:42:26,394 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 20:42:26,394 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 20:42:26,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 20:42:26,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 20:42:26,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 20:42:26,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 20:42:26,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 20:42:26,395 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 20:42:26,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 20:42:26,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 20:42:26,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 20:42:26,795 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 20:42:26,796 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 20:42:26,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/quick_sort_split.i [2021-02-21 20:42:26,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f32fc459f/4623721bf7be48a0abf5dd11b962d34a/FLAG9a918d94d [2021-02-21 20:42:27,682 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 20:42:27,683 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/quick_sort_split.i [2021-02-21 20:42:27,701 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f32fc459f/4623721bf7be48a0abf5dd11b962d34a/FLAG9a918d94d [2021-02-21 20:42:27,920 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f32fc459f/4623721bf7be48a0abf5dd11b962d34a [2021-02-21 20:42:27,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 20:42:27,944 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 20:42:27,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 20:42:27,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 20:42:27,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 20:42:27,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 08:42:27" (1/1) ... [2021-02-21 20:42:27,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d99cf9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:42:27, skipping insertion in model container [2021-02-21 20:42:27,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 08:42:27" (1/1) ... [2021-02-21 20:42:27,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 20:42:28,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 20:42:28,412 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-data/quick_sort_split.i[23986,23999] [2021-02-21 20:42:28,419 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-data/quick_sort_split.i[24106,24119] [2021-02-21 20:42:28,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 20:42:28,438 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 20:42:28,513 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-data/quick_sort_split.i[23986,23999] [2021-02-21 20:42:28,515 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-data/quick_sort_split.i[24106,24119] [2021-02-21 20:42:28,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 20:42:28,597 INFO L208 MainTranslator]: Completed translation [2021-02-21 20:42:28,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:42:28 WrapperNode [2021-02-21 20:42:28,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 20:42:28,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 20:42:28,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 20:42:28,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 20:42:28,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:42:28" (1/1) ... [2021-02-21 20:42:28,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:42:28" (1/1) ... [2021-02-21 20:42:28,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:42:28" (1/1) ... [2021-02-21 20:42:28,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:42:28" (1/1) ... [2021-02-21 20:42:28,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:42:28" (1/1) ... [2021-02-21 20:42:28,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:42:28" (1/1) ... [2021-02-21 20:42:28,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:42:28" (1/1) ... [2021-02-21 20:42:28,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 20:42:28,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 20:42:28,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 20:42:28,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 20:42:28,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:42:28" (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 [2021-02-21 20:42:28,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 20:42:28,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 20:42:28,792 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 20:42:28,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-02-21 20:42:28,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-02-21 20:42:28,793 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_list [2021-02-21 20:42:28,793 INFO L138 BoogieDeclarations]: Found implementation of procedure create_list [2021-02-21 20:42:28,793 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 20:42:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 20:42:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 20:42:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 20:42:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-21 20:42:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-21 20:42:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 20:42:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 20:42:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-02-21 20:42:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-02-21 20:42:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-02-21 20:42:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-02-21 20:42:28,796 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-02-21 20:42:28,796 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-02-21 20:42:28,796 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-02-21 20:42:28,796 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-02-21 20:42:28,796 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-02-21 20:42:28,797 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-02-21 20:42:28,797 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-02-21 20:42:28,797 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-02-21 20:42:28,797 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-02-21 20:42:28,797 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-02-21 20:42:28,798 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-02-21 20:42:28,798 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-02-21 20:42:28,798 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-02-21 20:42:28,798 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-02-21 20:42:28,798 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-02-21 20:42:28,798 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-02-21 20:42:28,799 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-02-21 20:42:28,799 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-02-21 20:42:28,799 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-02-21 20:42:28,799 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-02-21 20:42:28,799 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-02-21 20:42:28,799 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-02-21 20:42:28,800 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-02-21 20:42:28,800 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-02-21 20:42:28,800 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-02-21 20:42:28,800 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-02-21 20:42:28,800 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-02-21 20:42:28,801 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-02-21 20:42:28,801 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-02-21 20:42:28,801 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-02-21 20:42:28,801 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-02-21 20:42:28,801 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-02-21 20:42:28,801 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-02-21 20:42:28,802 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-02-21 20:42:28,802 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-02-21 20:42:28,802 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-02-21 20:42:28,802 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-02-21 20:42:28,802 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-02-21 20:42:28,802 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-02-21 20:42:28,803 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-02-21 20:42:28,803 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-02-21 20:42:28,803 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-02-21 20:42:28,803 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-02-21 20:42:28,803 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-02-21 20:42:28,803 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-02-21 20:42:28,804 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-02-21 20:42:28,804 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-02-21 20:42:28,804 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-02-21 20:42:28,804 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-21 20:42:28,804 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-02-21 20:42:28,804 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-02-21 20:42:28,805 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-21 20:42:28,805 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-02-21 20:42:28,805 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-02-21 20:42:28,805 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-02-21 20:42:28,805 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-02-21 20:42:28,805 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-02-21 20:42:28,806 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-02-21 20:42:28,806 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-02-21 20:42:28,806 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-02-21 20:42:28,806 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-21 20:42:28,806 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-02-21 20:42:28,806 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-02-21 20:42:28,807 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-02-21 20:42:28,807 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-02-21 20:42:28,807 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-02-21 20:42:28,807 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-02-21 20:42:28,807 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-02-21 20:42:28,807 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-02-21 20:42:28,808 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-02-21 20:42:28,808 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-02-21 20:42:28,808 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-02-21 20:42:28,808 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-02-21 20:42:28,808 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-02-21 20:42:28,809 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-02-21 20:42:28,809 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-02-21 20:42:28,809 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-02-21 20:42:28,809 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-02-21 20:42:28,809 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-02-21 20:42:28,809 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-02-21 20:42:28,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-02-21 20:42:28,810 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-02-21 20:42:28,810 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-02-21 20:42:28,810 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-02-21 20:42:28,810 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-02-21 20:42:28,810 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-02-21 20:42:28,811 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-02-21 20:42:28,811 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-02-21 20:42:28,811 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-02-21 20:42:28,811 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-02-21 20:42:28,811 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-02-21 20:42:28,811 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-02-21 20:42:28,812 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-02-21 20:42:28,812 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-02-21 20:42:28,812 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-02-21 20:42:28,812 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-02-21 20:42:28,812 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-02-21 20:42:28,812 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-02-21 20:42:28,813 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-02-21 20:42:28,813 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-02-21 20:42:28,813 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_list [2021-02-21 20:42:28,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-21 20:42:28,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-21 20:42:28,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-21 20:42:28,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 20:42:28,814 INFO L130 BoogieDeclarations]: Found specification of procedure create_list [2021-02-21 20:42:28,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-02-21 20:42:28,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 20:42:28,814 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 20:42:28,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 20:42:28,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 20:42:28,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 20:42:28,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 20:42:29,708 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 20:42:29,709 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-02-21 20:42:29,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 08:42:29 BoogieIcfgContainer [2021-02-21 20:42:29,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 20:42:29,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 20:42:29,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 20:42:29,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 20:42:29,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 08:42:27" (1/3) ... [2021-02-21 20:42:29,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c67678b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 08:42:29, skipping insertion in model container [2021-02-21 20:42:29,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:42:28" (2/3) ... [2021-02-21 20:42:29,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c67678b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 08:42:29, skipping insertion in model container [2021-02-21 20:42:29,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 08:42:29" (3/3) ... [2021-02-21 20:42:29,730 INFO L111 eAbstractionObserver]: Analyzing ICFG quick_sort_split.i [2021-02-21 20:42:29,738 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 20:42:29,750 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-02-21 20:42:29,770 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-02-21 20:42:29,803 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 20:42:29,803 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 20:42:29,804 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 20:42:29,804 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 20:42:29,804 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 20:42:29,804 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 20:42:29,804 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 20:42:29,804 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 20:42:29,829 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2021-02-21 20:42:29,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-21 20:42:29,846 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:42:29,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 20:42:29,847 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:42:29,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:42:29,856 INFO L82 PathProgramCache]: Analyzing trace with hash 791251371, now seen corresponding path program 1 times [2021-02-21 20:42:29,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:42:29,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [692034477] [2021-02-21 20:42:29,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:42:29,962 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:42:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:42:30,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:42:30,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:42:30,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:42:30,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:42:30,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:42:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:42:30,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:42:30,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:42:30,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-21 20:42:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:42:30,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:42:30,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:42:30,176 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:42:30,177 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:42:30,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:42:30,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [692034477] [2021-02-21 20:42:30,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:42:30,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 20:42:30,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665320091] [2021-02-21 20:42:30,198 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 20:42:30,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:42:30,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 20:42:30,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 20:42:30,223 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 4 states. [2021-02-21 20:42:30,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:42:30,570 INFO L93 Difference]: Finished difference Result 137 states and 157 transitions. [2021-02-21 20:42:30,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 20:42:30,573 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2021-02-21 20:42:30,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:42:30,588 INFO L225 Difference]: With dead ends: 137 [2021-02-21 20:42:30,588 INFO L226 Difference]: Without dead ends: 83 [2021-02-21 20:42:30,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-21 20:42:30,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-02-21 20:42:30,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-02-21 20:42:30,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2021-02-21 20:42:30,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions. [2021-02-21 20:42:30,677 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 33 [2021-02-21 20:42:30,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:42:30,678 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 89 transitions. [2021-02-21 20:42:30,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 20:42:30,678 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 89 transitions. [2021-02-21 20:42:30,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-02-21 20:42:30,684 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:42:30,686 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 20:42:30,687 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 20:42:30,687 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:42:30,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:42:30,700 INFO L82 PathProgramCache]: Analyzing trace with hash 291324984, now seen corresponding path program 1 times [2021-02-21 20:42:30,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:42:30,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [497121859] [2021-02-21 20:42:30,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:42:30,713 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:42:30,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:42:30,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:42:30,823 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:42:30,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:42:30,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:42:30,838 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:42:30,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:42:30,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:42:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:42:30,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:42:30,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:42:30,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-21 20:42:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:42:30,904 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:42:30,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:42:30,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:42:30,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [497121859] [2021-02-21 20:42:30,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:42:30,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-21 20:42:30,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865806941] [2021-02-21 20:42:30,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-21 20:42:30,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:42:30,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-21 20:42:30,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-21 20:42:30,917 INFO L87 Difference]: Start difference. First operand 83 states and 89 transitions. Second operand 5 states. [2021-02-21 20:42:31,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:42:31,112 INFO L93 Difference]: Finished difference Result 94 states and 101 transitions. [2021-02-21 20:42:31,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-21 20:42:31,113 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2021-02-21 20:42:31,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:42:31,115 INFO L225 Difference]: With dead ends: 94 [2021-02-21 20:42:31,115 INFO L226 Difference]: Without dead ends: 74 [2021-02-21 20:42:31,116 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-21 20:42:31,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-02-21 20:42:31,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-02-21 20:42:31,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2021-02-21 20:42:31,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2021-02-21 20:42:31,131 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 35 [2021-02-21 20:42:31,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:42:31,131 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2021-02-21 20:42:31,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-21 20:42:31,131 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2021-02-21 20:42:31,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-02-21 20:42:31,133 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:42:31,133 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 20:42:31,133 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 20:42:31,133 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:42:31,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:42:31,134 INFO L82 PathProgramCache]: Analyzing trace with hash 406725419, now seen corresponding path program 1 times [2021-02-21 20:42:31,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:42:31,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [659280551] [2021-02-21 20:42:31,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:42:31,140 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:42:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:42:31,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:42:31,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:42:31,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:42:31,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:42:31,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:42:31,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:42:31,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:42:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:42:31,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:42:31,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:42:31,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-02-21 20:42:31,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:42:31,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:42:31,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:42:31,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 20:42:31,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [659280551] [2021-02-21 20:42:31,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:42:31,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-21 20:42:31,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130693313] [2021-02-21 20:42:31,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-21 20:42:31,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:42:31,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-21 20:42:31,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-21 20:42:31,237 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand 5 states. [2021-02-21 20:42:31,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:42:31,379 INFO L93 Difference]: Finished difference Result 75 states and 80 transitions. [2021-02-21 20:42:31,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-21 20:42:31,380 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2021-02-21 20:42:31,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:42:31,380 INFO L225 Difference]: With dead ends: 75 [2021-02-21 20:42:31,380 INFO L226 Difference]: Without dead ends: 0 [2021-02-21 20:42:31,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-21 20:42:31,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-21 20:42:31,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-21 20:42:31,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-21 20:42:31,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-21 20:42:31,382 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2021-02-21 20:42:31,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:42:31,383 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-21 20:42:31,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-21 20:42:31,383 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-21 20:42:31,383 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-21 20:42:31,383 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 20:42:31,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-21 20:42:31,853 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 13) no Hoare annotation was computed. [2021-02-21 20:42:31,853 INFO L189 CegarLoopUtils]: For program point L13-1(line 13) no Hoare annotation was computed. [2021-02-21 20:42:31,853 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 13) no Hoare annotation was computed. [2021-02-21 20:42:31,853 INFO L189 CegarLoopUtils]: For program point L13-2(line 13) no Hoare annotation was computed. [2021-02-21 20:42:31,853 INFO L189 CegarLoopUtils]: For program point L13-3(line 13) no Hoare annotation was computed. [2021-02-21 20:42:31,853 INFO L192 CegarLoopUtils]: At program point create_listEXIT(lines 580 590) the Hoare annotation is: true [2021-02-21 20:42:31,854 INFO L192 CegarLoopUtils]: At program point L589(line 589) the Hoare annotation is: true [2021-02-21 20:42:31,854 INFO L192 CegarLoopUtils]: At program point L589-1(line 589) the Hoare annotation is: true [2021-02-21 20:42:31,854 INFO L192 CegarLoopUtils]: At program point L587(line 587) the Hoare annotation is: true [2021-02-21 20:42:31,854 INFO L192 CegarLoopUtils]: At program point L587-1(lines 581 588) the Hoare annotation is: true [2021-02-21 20:42:31,854 INFO L192 CegarLoopUtils]: At program point L585(line 585) the Hoare annotation is: true [2021-02-21 20:42:31,854 INFO L192 CegarLoopUtils]: At program point L583(line 583) the Hoare annotation is: true [2021-02-21 20:42:31,854 INFO L192 CegarLoopUtils]: At program point L583-1(line 583) the Hoare annotation is: true [2021-02-21 20:42:31,855 INFO L192 CegarLoopUtils]: At program point L581(line 581) the Hoare annotation is: true [2021-02-21 20:42:31,855 INFO L192 CegarLoopUtils]: At program point L583-2(line 583) the Hoare annotation is: true [2021-02-21 20:42:31,855 INFO L192 CegarLoopUtils]: At program point L581-2(line 581) the Hoare annotation is: true [2021-02-21 20:42:31,855 INFO L192 CegarLoopUtils]: At program point L581-3(line 581) the Hoare annotation is: true [2021-02-21 20:42:31,855 INFO L185 CegarLoopUtils]: At program point create_listENTRY(lines 580 590) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2021-02-21 20:42:31,855 INFO L192 CegarLoopUtils]: At program point L584(lines 584 587) the Hoare annotation is: true [2021-02-21 20:42:31,856 INFO L192 CegarLoopUtils]: At program point create_listFINAL(lines 580 590) the Hoare annotation is: true [2021-02-21 20:42:31,856 INFO L192 CegarLoopUtils]: At program point L582(lines 582 588) the Hoare annotation is: true [2021-02-21 20:42:31,856 INFO L192 CegarLoopUtils]: At program point L582-1(line 582) the Hoare annotation is: true [2021-02-21 20:42:31,856 INFO L192 CegarLoopUtils]: At program point L582-3(line 582) the Hoare annotation is: true [2021-02-21 20:42:31,856 INFO L192 CegarLoopUtils]: At program point L582-4(lines 582 588) the Hoare annotation is: true [2021-02-21 20:42:31,856 INFO L185 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-21 20:42:31,856 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-21 20:42:31,857 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 13) the Hoare annotation is: true [2021-02-21 20:42:31,857 INFO L192 CegarLoopUtils]: At program point L13(line 13) the Hoare annotation is: true [2021-02-21 20:42:31,857 INFO L192 CegarLoopUtils]: At program point L13-1(line 13) the Hoare annotation is: true [2021-02-21 20:42:31,857 INFO L192 CegarLoopUtils]: At program point L13-2(line 13) the Hoare annotation is: true [2021-02-21 20:42:31,857 INFO L192 CegarLoopUtils]: At program point L13-3(line 13) the Hoare annotation is: true [2021-02-21 20:42:31,859 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |old(#t~string1.offset)| |#t~string1.offset|) (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-21 20:42:31,859 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-21 20:42:31,860 INFO L189 CegarLoopUtils]: For program point __bswap_32ENTRY(lines 75 79) no Hoare annotation was computed. [2021-02-21 20:42:31,860 INFO L189 CegarLoopUtils]: For program point L78(line 78) no Hoare annotation was computed. [2021-02-21 20:42:31,860 INFO L189 CegarLoopUtils]: For program point L78-1(line 78) no Hoare annotation was computed. [2021-02-21 20:42:31,860 INFO L189 CegarLoopUtils]: For program point __bswap_32FINAL(lines 75 79) no Hoare annotation was computed. [2021-02-21 20:42:31,860 INFO L189 CegarLoopUtils]: For program point __bswap_32EXIT(lines 75 79) no Hoare annotation was computed. [2021-02-21 20:42:31,861 INFO L189 CegarLoopUtils]: For program point __bswap_64ENTRY(lines 80 84) no Hoare annotation was computed. [2021-02-21 20:42:31,861 INFO L189 CegarLoopUtils]: For program point __bswap_64FINAL(lines 80 84) no Hoare annotation was computed. [2021-02-21 20:42:31,861 INFO L189 CegarLoopUtils]: For program point __bswap_64EXIT(lines 80 84) no Hoare annotation was computed. [2021-02-21 20:42:31,861 INFO L189 CegarLoopUtils]: For program point L83(line 83) no Hoare annotation was computed. [2021-02-21 20:42:31,861 INFO L189 CegarLoopUtils]: For program point L83-1(line 83) no Hoare annotation was computed. [2021-02-21 20:42:31,861 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-21 20:42:31,861 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 20:42:31,861 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-21 20:42:31,862 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-21 20:42:31,862 INFO L185 CegarLoopUtils]: At program point L609(line 609) the Hoare annotation is: false [2021-02-21 20:42:31,862 INFO L185 CegarLoopUtils]: At program point L609-1(lines 609 610) the Hoare annotation is: false [2021-02-21 20:42:31,862 INFO L185 CegarLoopUtils]: At program point L609-2(line 609) the Hoare annotation is: false [2021-02-21 20:42:31,862 INFO L185 CegarLoopUtils]: At program point L605(line 605) the Hoare annotation is: false [2021-02-21 20:42:31,862 INFO L185 CegarLoopUtils]: At program point L609-4(line 609) the Hoare annotation is: false [2021-02-21 20:42:31,862 INFO L185 CegarLoopUtils]: At program point L609-5(lines 609 610) the Hoare annotation is: false [2021-02-21 20:42:31,863 INFO L185 CegarLoopUtils]: At program point L601(line 601) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2021-02-21 20:42:31,863 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 591 613) the Hoare annotation is: true [2021-02-21 20:42:31,863 INFO L185 CegarLoopUtils]: At program point L597(line 597) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2021-02-21 20:42:31,863 INFO L185 CegarLoopUtils]: At program point L597-1(line 597) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2021-02-21 20:42:31,864 INFO L185 CegarLoopUtils]: At program point L597-2(line 597) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2021-02-21 20:42:31,864 INFO L192 CegarLoopUtils]: At program point L593(line 593) the Hoare annotation is: true [2021-02-21 20:42:31,864 INFO L185 CegarLoopUtils]: At program point L597-4(line 597) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2021-02-21 20:42:31,864 INFO L185 CegarLoopUtils]: At program point L597-5(line 597) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2021-02-21 20:42:31,865 INFO L185 CegarLoopUtils]: At program point L597-6(line 597) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2021-02-21 20:42:31,865 INFO L185 CegarLoopUtils]: At program point L597-7(line 597) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2021-02-21 20:42:31,865 INFO L185 CegarLoopUtils]: At program point L610(line 610) the Hoare annotation is: false [2021-02-21 20:42:31,865 INFO L185 CegarLoopUtils]: At program point L606(line 606) the Hoare annotation is: false [2021-02-21 20:42:31,865 INFO L185 CegarLoopUtils]: At program point L606-1(line 606) the Hoare annotation is: false [2021-02-21 20:42:31,865 INFO L185 CegarLoopUtils]: At program point L598(line 598) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2021-02-21 20:42:31,866 INFO L185 CegarLoopUtils]: At program point L598-1(line 598) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2021-02-21 20:42:31,866 INFO L185 CegarLoopUtils]: At program point L598-2(line 598) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2021-02-21 20:42:31,866 INFO L185 CegarLoopUtils]: At program point L594(line 594) the Hoare annotation is: (and (= main_~low~0.base 0) (= main_~low~0.offset 0)) [2021-02-21 20:42:31,866 INFO L185 CegarLoopUtils]: At program point L611(line 611) the Hoare annotation is: false [2021-02-21 20:42:31,866 INFO L185 CegarLoopUtils]: At program point L611-1(line 611) the Hoare annotation is: false [2021-02-21 20:42:31,866 INFO L185 CegarLoopUtils]: At program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 610) the Hoare annotation is: false [2021-02-21 20:42:31,867 INFO L185 CegarLoopUtils]: At program point L603-1(lines 591 613) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2021-02-21 20:42:31,867 INFO L185 CegarLoopUtils]: At program point L599(line 599) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2021-02-21 20:42:31,868 INFO L185 CegarLoopUtils]: At program point L599-1(line 599) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2021-02-21 20:42:31,868 INFO L185 CegarLoopUtils]: At program point L595(line 595) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2021-02-21 20:42:31,868 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 605) the Hoare annotation is: false [2021-02-21 20:42:31,870 INFO L185 CegarLoopUtils]: At program point L608-1(lines 591 613) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2021-02-21 20:42:31,873 INFO L192 CegarLoopUtils]: At program point L608-2(lines 591 613) the Hoare annotation is: true [2021-02-21 20:42:31,874 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 591 613) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2021-02-21 20:42:31,875 INFO L185 CegarLoopUtils]: At program point L604(line 604) the Hoare annotation is: false [2021-02-21 20:42:31,875 INFO L185 CegarLoopUtils]: At program point L604-1(lines 604 605) the Hoare annotation is: false [2021-02-21 20:42:31,875 INFO L185 CegarLoopUtils]: At program point L604-2(line 604) the Hoare annotation is: false [2021-02-21 20:42:31,875 INFO L185 CegarLoopUtils]: At program point L604-4(line 604) the Hoare annotation is: false [2021-02-21 20:42:31,876 INFO L185 CegarLoopUtils]: At program point L604-5(lines 604 605) the Hoare annotation is: false [2021-02-21 20:42:31,876 INFO L185 CegarLoopUtils]: At program point L596-2(lines 596 602) the Hoare annotation is: (and (= 0 main_~high~0.offset) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~low~0.offset 0)) [2021-02-21 20:42:31,876 INFO L192 CegarLoopUtils]: At program point L592(line 592) the Hoare annotation is: true [2021-02-21 20:42:31,876 INFO L192 CegarLoopUtils]: At program point L592-1(line 592) the Hoare annotation is: true [2021-02-21 20:42:31,876 INFO L192 CegarLoopUtils]: At program point L577(line 577) the Hoare annotation is: true [2021-02-21 20:42:31,876 INFO L192 CegarLoopUtils]: At program point L576(line 576) the Hoare annotation is: true [2021-02-21 20:42:31,876 INFO L192 CegarLoopUtils]: At program point L575(line 575) the Hoare annotation is: true [2021-02-21 20:42:31,878 INFO L192 CegarLoopUtils]: At program point L576-1(line 576) the Hoare annotation is: true [2021-02-21 20:42:31,878 INFO L185 CegarLoopUtils]: At program point L574(line 574) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2021-02-21 20:42:31,878 INFO L192 CegarLoopUtils]: At program point L575-1(line 575) the Hoare annotation is: true [2021-02-21 20:42:31,879 INFO L185 CegarLoopUtils]: At program point L573(lines 573 579) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2021-02-21 20:42:31,879 INFO L192 CegarLoopUtils]: At program point L574-1(line 574) the Hoare annotation is: true [2021-02-21 20:42:31,879 INFO L192 CegarLoopUtils]: At program point L575-2(line 575) the Hoare annotation is: true [2021-02-21 20:42:31,879 INFO L185 CegarLoopUtils]: At program point L573-1(lines 573 579) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2021-02-21 20:42:31,879 INFO L192 CegarLoopUtils]: At program point append_to_listEXIT(lines 573 579) the Hoare annotation is: true [2021-02-21 20:42:31,879 INFO L185 CegarLoopUtils]: At program point append_to_listENTRY(lines 573 579) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2021-02-21 20:42:31,880 INFO L192 CegarLoopUtils]: At program point append_to_listFINAL(lines 573 579) the Hoare annotation is: true [2021-02-21 20:42:31,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 08:42:31 BoogieIcfgContainer [2021-02-21 20:42:31,904 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 20:42:31,907 INFO L168 Benchmark]: Toolchain (without parser) took 3975.02 ms. Allocated memory was 157.3 MB in the beginning and 194.0 MB in the end (delta: 36.7 MB). Free memory was 133.1 MB in the beginning and 93.8 MB in the end (delta: 39.3 MB). Peak memory consumption was 101.9 MB. Max. memory is 8.0 GB. [2021-02-21 20:42:31,909 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 157.3 MB. Free memory is still 130.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 20:42:31,912 INFO L168 Benchmark]: CACSL2BoogieTranslator took 649.89 ms. Allocated memory is still 157.3 MB. Free memory was 131.8 MB in the beginning and 109.0 MB in the end (delta: 22.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-02-21 20:42:31,917 INFO L168 Benchmark]: Boogie Preprocessor took 67.71 ms. Allocated memory is still 157.3 MB. Free memory was 109.0 MB in the beginning and 106.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-21 20:42:31,918 INFO L168 Benchmark]: RCFGBuilder took 1044.71 ms. Allocated memory is still 157.3 MB. Free memory was 106.1 MB in the beginning and 93.4 MB in the end (delta: 12.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 8.0 GB. [2021-02-21 20:42:31,920 INFO L168 Benchmark]: TraceAbstraction took 2189.25 ms. Allocated memory was 157.3 MB in the beginning and 194.0 MB in the end (delta: 36.7 MB). Free memory was 93.4 MB in the beginning and 93.8 MB in the end (delta: -389.1 kB). Peak memory consumption was 61.0 MB. Max. memory is 8.0 GB. [2021-02-21 20:42:31,930 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 157.3 MB. Free memory is still 130.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 649.89 ms. Allocated memory is still 157.3 MB. Free memory was 131.8 MB in the beginning and 109.0 MB in the end (delta: 22.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 67.71 ms. Allocated memory is still 157.3 MB. Free memory was 109.0 MB in the beginning and 106.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1044.71 ms. Allocated memory is still 157.3 MB. Free memory was 106.1 MB in the beginning and 93.4 MB in the end (delta: 12.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2189.25 ms. Allocated memory was 157.3 MB in the beginning and 194.0 MB in the end (delta: 36.7 MB). Free memory was 93.4 MB in the beginning and 93.8 MB in the end (delta: -389.1 kB). Peak memory consumption was 61.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 605]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 610]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 596]: Loop Invariant Derived loop invariant: ((0 == high && low == 0) && high == 0) && low == 0 - InvariantResult [Line: 581]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 580]: Procedure Contract for create_list Derived contract for procedure create_list: 1 - ProcedureContractResult [Line: 591]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 573]: Procedure Contract for append_to_list Derived contract for procedure append_to_list: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 102 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 229 SDtfs, 62 SDslu, 244 SDs, 0 SdLazy, 298 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 87 LocationsWithAnnotation, 100 PreInvPairs, 132 NumberOfFragments, 417 HoareAnnotationTreeSize, 100 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 87 FomulaSimplificationsInter, 126 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, 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 correct! Received shutdown request...