/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/heap-data/quick_sort_split.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:28:59,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:28:59,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:28:59,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 18:28:59,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 18:28:59,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 18:28:59,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 18:28:59,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 18:28:59,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 18:28:59,884 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 18:28:59,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 18:28:59,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 18:28:59,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:28:59,888 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:28:59,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:28:59,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:28:59,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:28:59,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:28:59,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:28:59,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:28:59,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:28:59,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:28:59,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:28:59,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:28:59,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 18:28:59,924 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 18:28:59,924 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 18:28:59,925 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 18:28:59,926 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 18:28:59,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 18:28:59,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 18:28:59,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 18:28:59,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 18:28:59,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 18:28:59,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 18:28:59,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 18:28:59,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 18:28:59,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 18:28:59,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:28:59,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:28:59,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:28:59,937 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-23 18:28:59,968 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:28:59,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:28:59,973 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:28:59,974 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:28:59,974 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:28:59,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:28:59,975 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:28:59,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:28:59,977 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:28:59,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:28:59,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:28:59,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:28:59,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:28:59,979 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:28:59,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:28:59,979 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:28:59,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:28:59,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:28:59,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:28:59,980 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:28:59,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:28:59,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:28:59,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:28:59,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:28:59,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:28:59,982 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:28:59,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:28:59,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:28:59,982 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:28:59,982 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:29:00,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:29:00,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:29:00,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:29:00,456 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:29:00,457 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:29:00,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/quick_sort_split.i [2020-10-23 18:29:00,554 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0426fec64/7011e7e282b0495bb25396f631a2fccc/FLAGdfbdae5db [2020-10-23 18:29:01,326 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:29:01,329 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/quick_sort_split.i [2020-10-23 18:29:01,349 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0426fec64/7011e7e282b0495bb25396f631a2fccc/FLAGdfbdae5db [2020-10-23 18:29:01,648 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0426fec64/7011e7e282b0495bb25396f631a2fccc [2020-10-23 18:29:01,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:29:01,663 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:29:01,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:29:01,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:29:01,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:29:01,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:29:01" (1/1) ... [2020-10-23 18:29:01,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fe66c66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:29:01, skipping insertion in model container [2020-10-23 18:29:01,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:29:01" (1/1) ... [2020-10-23 18:29:01,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:29:01,732 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:29:02,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:29:02,053 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:29:02,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:29:02,193 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:29:02,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:29:02 WrapperNode [2020-10-23 18:29:02,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:29:02,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:29:02,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:29:02,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:29:02,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:29:02" (1/1) ... [2020-10-23 18:29:02,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:29:02" (1/1) ... [2020-10-23 18:29:02,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:29:02" (1/1) ... [2020-10-23 18:29:02,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:29:02" (1/1) ... [2020-10-23 18:29:02,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:29:02" (1/1) ... [2020-10-23 18:29:02,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:29:02" (1/1) ... [2020-10-23 18:29:02,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:29:02" (1/1) ... [2020-10-23 18:29:02,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:29:02,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:29:02,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:29:02,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:29:02,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:29:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:29:02,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:29:02,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:29:02,369 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:29:02,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-23 18:29:02,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-23 18:29:02,370 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_list [2020-10-23 18:29:02,370 INFO L138 BoogieDeclarations]: Found implementation of procedure create_list [2020-10-23 18:29:02,370 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:29:02,370 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:29:02,370 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:29:02,370 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:29:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-23 18:29:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-23 18:29:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:29:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:29:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-23 18:29:02,371 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-23 18:29:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-23 18:29:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-23 18:29:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-23 18:29:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-23 18:29:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-23 18:29:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-23 18:29:02,372 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-23 18:29:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-23 18:29:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-23 18:29:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-23 18:29:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-23 18:29:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-23 18:29:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-23 18:29:02,373 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-23 18:29:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-23 18:29:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-23 18:29:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-23 18:29:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-23 18:29:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-23 18:29:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-23 18:29:02,374 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-23 18:29:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-23 18:29:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-23 18:29:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-23 18:29:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-23 18:29:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-23 18:29:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-23 18:29:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-23 18:29:02,375 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-23 18:29:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-23 18:29:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-23 18:29:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-23 18:29:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-23 18:29:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-23 18:29:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-23 18:29:02,376 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-23 18:29:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-23 18:29:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-23 18:29:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-23 18:29:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-23 18:29:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-23 18:29:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-23 18:29:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-23 18:29:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-23 18:29:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-23 18:29:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-23 18:29:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-23 18:29:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-23 18:29:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-23 18:29:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-23 18:29:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 18:29:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-23 18:29:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-23 18:29:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 18:29:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-23 18:29:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-23 18:29:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-23 18:29:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-23 18:29:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-23 18:29:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-23 18:29:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-23 18:29:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-23 18:29:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 18:29:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-23 18:29:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-23 18:29:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-23 18:29:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-23 18:29:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-23 18:29:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-23 18:29:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-23 18:29:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-23 18:29:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-23 18:29:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-23 18:29:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-23 18:29:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-23 18:29:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-23 18:29:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-23 18:29:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-23 18:29:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-23 18:29:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-23 18:29:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-23 18:29:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-23 18:29:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-23 18:29:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-23 18:29:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-23 18:29:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-23 18:29:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-23 18:29:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-23 18:29:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-23 18:29:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-23 18:29:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-23 18:29:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-23 18:29:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-23 18:29:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-23 18:29:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-23 18:29:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-23 18:29:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-23 18:29:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-23 18:29:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-23 18:29:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-23 18:29:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-23 18:29:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-23 18:29:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_list [2020-10-23 18:29:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 18:29:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 18:29:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 18:29:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:29:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure create_list [2020-10-23 18:29:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-23 18:29:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:29:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:29:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:29:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:29:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:29:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:29:03,008 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:29:03,008 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-23 18:29:03,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:29:03 BoogieIcfgContainer [2020-10-23 18:29:03,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:29:03,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:29:03,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:29:03,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:29:03,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:29:01" (1/3) ... [2020-10-23 18:29:03,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3701cde1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:29:03, skipping insertion in model container [2020-10-23 18:29:03,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:29:02" (2/3) ... [2020-10-23 18:29:03,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3701cde1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:29:03, skipping insertion in model container [2020-10-23 18:29:03,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:29:03" (3/3) ... [2020-10-23 18:29:03,020 INFO L111 eAbstractionObserver]: Analyzing ICFG quick_sort_split.i [2020-10-23 18:29:03,032 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:29:03,038 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:29:03,052 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:29:03,080 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:29:03,080 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:29:03,081 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:29:03,081 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:29:03,081 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:29:03,081 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:29:03,081 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:29:03,081 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:29:03,099 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-10-23 18:29:03,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-23 18:29:03,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:29:03,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:29:03,108 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:29:03,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:29:03,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1050377751, now seen corresponding path program 1 times [2020-10-23 18:29:03,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:29:03,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307154327] [2020-10-23 18:29:03,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:29:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:03,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:29:03,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:03,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-23 18:29:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:03,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:29:03,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307154327] [2020-10-23 18:29:03,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:29:03,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 18:29:03,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361792674] [2020-10-23 18:29:03,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 18:29:03,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:29:03,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 18:29:03,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 18:29:03,449 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 4 states. [2020-10-23 18:29:03,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:29:03,689 INFO L93 Difference]: Finished difference Result 61 states and 86 transitions. [2020-10-23 18:29:03,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:29:03,691 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-23 18:29:03,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:29:03,702 INFO L225 Difference]: With dead ends: 61 [2020-10-23 18:29:03,702 INFO L226 Difference]: Without dead ends: 33 [2020-10-23 18:29:03,707 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 [2020-10-23 18:29:03,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-23 18:29:03,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-23 18:29:03,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-23 18:29:03,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2020-10-23 18:29:03,781 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 18 [2020-10-23 18:29:03,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:29:03,781 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2020-10-23 18:29:03,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 18:29:03,782 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2020-10-23 18:29:03,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-23 18:29:03,785 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:29:03,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:29:03,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:29:03,786 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:29:03,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:29:03,804 INFO L82 PathProgramCache]: Analyzing trace with hash -458401008, now seen corresponding path program 1 times [2020-10-23 18:29:03,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:29:03,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549193211] [2020-10-23 18:29:03,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:29:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:03,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:29:03,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:03,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-23 18:29:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:04,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:29:04,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549193211] [2020-10-23 18:29:04,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:29:04,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 18:29:04,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249661594] [2020-10-23 18:29:04,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:29:04,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:29:04,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:29:04,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:29:04,011 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand 5 states. [2020-10-23 18:29:04,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:29:04,152 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2020-10-23 18:29:04,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 18:29:04,153 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-23 18:29:04,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:29:04,154 INFO L225 Difference]: With dead ends: 41 [2020-10-23 18:29:04,154 INFO L226 Difference]: Without dead ends: 30 [2020-10-23 18:29:04,156 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 [2020-10-23 18:29:04,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-23 18:29:04,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-23 18:29:04,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-23 18:29:04,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2020-10-23 18:29:04,164 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 19 [2020-10-23 18:29:04,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:29:04,165 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2020-10-23 18:29:04,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:29:04,165 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2020-10-23 18:29:04,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-23 18:29:04,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:29:04,166 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] [2020-10-23 18:29:04,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:29:04,167 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:29:04,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:29:04,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1369192421, now seen corresponding path program 1 times [2020-10-23 18:29:04,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:29:04,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687742555] [2020-10-23 18:29:04,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:29:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:04,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:29:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:04,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-23 18:29:04,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:29:04,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:29:04,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687742555] [2020-10-23 18:29:04,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:29:04,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 18:29:04,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415439445] [2020-10-23 18:29:04,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:29:04,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:29:04,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:29:04,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:29:04,272 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand 5 states. [2020-10-23 18:29:04,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:29:04,405 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2020-10-23 18:29:04,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 18:29:04,406 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-10-23 18:29:04,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:29:04,407 INFO L225 Difference]: With dead ends: 31 [2020-10-23 18:29:04,407 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:29:04,408 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 [2020-10-23 18:29:04,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:29:04,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:29:04,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:29:04,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:29:04,409 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-23 18:29:04,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:29:04,409 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:29:04,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:29:04,409 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:29:04,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:29:04,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 18:29:04,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:29:04,585 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 13) no Hoare annotation was computed. [2020-10-23 18:29:04,585 INFO L274 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-10-23 18:29:04,586 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 13) the Hoare annotation is: true [2020-10-23 18:29:04,586 INFO L274 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-10-23 18:29:04,586 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-10-23 18:29:04,586 INFO L274 CegarLoopResult]: For program point create_listEXIT(lines 580 590) no Hoare annotation was computed. [2020-10-23 18:29:04,586 INFO L270 CegarLoopResult]: 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|)) [2020-10-23 18:29:04,587 INFO L277 CegarLoopResult]: At program point L587(line 587) the Hoare annotation is: true [2020-10-23 18:29:04,587 INFO L277 CegarLoopResult]: At program point L587-1(lines 582 588) the Hoare annotation is: true [2020-10-23 18:29:04,587 INFO L277 CegarLoopResult]: At program point L585(line 585) the Hoare annotation is: true [2020-10-23 18:29:04,587 INFO L274 CegarLoopResult]: For program point L584(lines 584 587) no Hoare annotation was computed. [2020-10-23 18:29:04,587 INFO L274 CegarLoopResult]: For program point create_listFINAL(lines 580 590) no Hoare annotation was computed. [2020-10-23 18:29:04,587 INFO L274 CegarLoopResult]: For program point L582-1(lines 582 588) no Hoare annotation was computed. [2020-10-23 18:29:04,587 INFO L274 CegarLoopResult]: For program point L582-3(lines 582 588) no Hoare annotation was computed. [2020-10-23 18:29:04,587 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:29:04,588 INFO L270 CegarLoopResult]: 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|)) [2020-10-23 18:29:04,588 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:29:04,588 INFO L274 CegarLoopResult]: For program point __bswap_32ENTRY(lines 75 79) no Hoare annotation was computed. [2020-10-23 18:29:04,588 INFO L274 CegarLoopResult]: For program point __bswap_32FINAL(lines 75 79) no Hoare annotation was computed. [2020-10-23 18:29:04,588 INFO L274 CegarLoopResult]: For program point __bswap_32EXIT(lines 75 79) no Hoare annotation was computed. [2020-10-23 18:29:04,588 INFO L274 CegarLoopResult]: For program point __bswap_64ENTRY(lines 80 84) no Hoare annotation was computed. [2020-10-23 18:29:04,588 INFO L274 CegarLoopResult]: For program point __bswap_64FINAL(lines 80 84) no Hoare annotation was computed. [2020-10-23 18:29:04,589 INFO L274 CegarLoopResult]: For program point __bswap_64EXIT(lines 80 84) no Hoare annotation was computed. [2020-10-23 18:29:04,589 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:29:04,589 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-23 18:29:04,589 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:29:04,589 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:29:04,589 INFO L274 CegarLoopResult]: For program point L609(lines 609 610) no Hoare annotation was computed. [2020-10-23 18:29:04,589 INFO L274 CegarLoopResult]: For program point L609-1(lines 609 610) no Hoare annotation was computed. [2020-10-23 18:29:04,589 INFO L270 CegarLoopResult]: At program point L605(line 605) the Hoare annotation is: false [2020-10-23 18:29:04,589 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 591 613) no Hoare annotation was computed. [2020-10-23 18:29:04,590 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-23 18:29:04,590 INFO L274 CegarLoopResult]: For program point L597-2(line 597) no Hoare annotation was computed. [2020-10-23 18:29:04,590 INFO L270 CegarLoopResult]: At program point L610(line 610) the Hoare annotation is: false [2020-10-23 18:29:04,590 INFO L274 CegarLoopResult]: For program point L603-1(lines 591 613) no Hoare annotation was computed. [2020-10-23 18:29:04,590 INFO L274 CegarLoopResult]: For program point L608-1(lines 591 613) no Hoare annotation was computed. [2020-10-23 18:29:04,590 INFO L274 CegarLoopResult]: For program point L608-2(lines 591 613) no Hoare annotation was computed. [2020-10-23 18:29:04,591 INFO L270 CegarLoopResult]: 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|)) [2020-10-23 18:29:04,591 INFO L274 CegarLoopResult]: For program point L604(lines 604 605) no Hoare annotation was computed. [2020-10-23 18:29:04,591 INFO L274 CegarLoopResult]: For program point L604-1(lines 604 605) no Hoare annotation was computed. [2020-10-23 18:29:04,591 INFO L270 CegarLoopResult]: 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)) [2020-10-23 18:29:04,591 INFO L274 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-10-23 18:29:04,591 INFO L274 CegarLoopResult]: For program point append_to_listEXIT(lines 573 579) no Hoare annotation was computed. [2020-10-23 18:29:04,591 INFO L270 CegarLoopResult]: 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|)) [2020-10-23 18:29:04,592 INFO L274 CegarLoopResult]: For program point append_to_listFINAL(lines 573 579) no Hoare annotation was computed. [2020-10-23 18:29:04,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:29:04 BoogieIcfgContainer [2020-10-23 18:29:04,611 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:29:04,613 INFO L168 Benchmark]: Toolchain (without parser) took 2955.54 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 49.5 MB in the end (delta: 75.3 MB). Peak memory consumption was 75.4 MB. Max. memory is 8.0 GB. [2020-10-23 18:29:04,615 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 124.7 MB in the end (delta: 84.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:29:04,616 INFO L168 Benchmark]: CACSL2BoogieTranslator took 527.05 ms. Allocated memory is still 151.0 MB. Free memory was 124.0 MB in the beginning and 101.8 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:29:04,642 INFO L168 Benchmark]: Boogie Preprocessor took 85.81 ms. Allocated memory is still 151.0 MB. Free memory was 101.8 MB in the beginning and 133.3 MB in the end (delta: -31.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-10-23 18:29:04,644 INFO L168 Benchmark]: RCFGBuilder took 729.03 ms. Allocated memory is still 151.0 MB. Free memory was 133.3 MB in the beginning and 90.3 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:29:04,644 INFO L168 Benchmark]: TraceAbstraction took 1598.54 ms. Allocated memory is still 151.0 MB. Free memory was 89.7 MB in the beginning and 49.5 MB in the end (delta: 40.3 MB). Peak memory consumption was 39.8 MB. Max. memory is 8.0 GB. [2020-10-23 18:29:04,649 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 124.7 MB in the end (delta: 84.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 527.05 ms. Allocated memory is still 151.0 MB. Free memory was 124.0 MB in the beginning and 101.8 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 85.81 ms. Allocated memory is still 151.0 MB. Free memory was 101.8 MB in the beginning and 133.3 MB in the end (delta: -31.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 729.03 ms. Allocated memory is still 151.0 MB. Free memory was 133.3 MB in the beginning and 90.3 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1598.54 ms. Allocated memory is still 151.0 MB. Free memory was 89.7 MB in the beginning and 49.5 MB in the end (delta: 40.3 MB). Peak memory consumption was 39.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 596]: Loop Invariant Derived loop invariant: ((0 == high && low == 0) && high == 0) && low == 0 - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 95 SDtfs, 21 SDslu, 103 SDs, 0 SdLazy, 124 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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=39occurred 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, 13 LocationsWithAnnotation, 18 PreInvPairs, 19 NumberOfFragments, 94 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 63 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 3638 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...