java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/list-ext3-properties/sll_circular_traversal-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:48:27,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:48:27,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:48:27,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:48:27,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:48:27,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:48:27,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:48:27,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:48:27,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:48:27,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:48:27,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:48:27,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:48:27,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:48:27,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:48:27,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:48:27,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:48:27,917 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:48:27,918 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:48:27,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:48:27,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:48:27,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:48:27,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:48:27,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:48:27,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:48:27,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:48:27,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:48:27,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:48:27,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:48:27,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:48:27,939 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:48:27,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:48:27,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:48:27,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:48:27,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:48:27,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:48:27,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:48:27,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:48:27,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:48:27,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:48:27,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:48:27,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:48:27,951 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 01:48:27,979 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:48:27,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:48:27,981 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:48:27,982 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:48:27,982 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:48:27,983 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:48:27,983 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:48:27,983 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:48:27,983 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:48:27,984 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:48:27,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:48:27,985 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:48:27,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:48:27,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:48:27,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:48:27,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:48:27,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:48:27,987 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:48:27,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:48:27,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:48:27,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:48:27,988 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:48:27,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:48:27,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:48:27,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:48:27,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:48:27,990 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:48:27,991 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:48:27,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:48:27,991 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:48:28,038 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:48:28,054 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:48:28,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:48:28,060 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:48:28,060 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:48:28,061 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext3-properties/sll_circular_traversal-1.i [2019-09-10 01:48:28,132 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d3293ea2/5c783388ec3042ca8c806d3a73ff1346/FLAG69d85a925 [2019-09-10 01:48:28,745 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:48:28,747 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext3-properties/sll_circular_traversal-1.i [2019-09-10 01:48:28,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d3293ea2/5c783388ec3042ca8c806d3a73ff1346/FLAG69d85a925 [2019-09-10 01:48:28,991 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d3293ea2/5c783388ec3042ca8c806d3a73ff1346 [2019-09-10 01:48:29,004 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:48:29,008 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:48:29,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:48:29,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:48:29,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:48:29,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:48:28" (1/1) ... [2019-09-10 01:48:29,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6673eccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:29, skipping insertion in model container [2019-09-10 01:48:29,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:48:28" (1/1) ... [2019-09-10 01:48:29,027 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:48:29,084 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:48:29,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:48:29,554 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:48:29,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:48:29,667 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:48:29,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:29 WrapperNode [2019-09-10 01:48:29,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:48:29,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:48:29,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:48:29,669 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:48:29,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:29" (1/1) ... [2019-09-10 01:48:29,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:29" (1/1) ... [2019-09-10 01:48:29,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:29" (1/1) ... [2019-09-10 01:48:29,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:29" (1/1) ... [2019-09-10 01:48:29,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:29" (1/1) ... [2019-09-10 01:48:29,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:29" (1/1) ... [2019-09-10 01:48:29,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:29" (1/1) ... [2019-09-10 01:48:29,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:48:29,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:48:29,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:48:29,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:48:29,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:29" (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 [2019-09-10 01:48:29,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:48:29,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:48:29,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-10 01:48:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-10 01:48:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-09-10 01:48:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_circular_create [2019-09-10 01:48:29,795 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:48:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:48:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-10 01:48:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-10 01:48:29,796 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-10 01:48:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-10 01:48:29,797 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-10 01:48:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-10 01:48:29,798 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-10 01:48:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-10 01:48:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-10 01:48:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-10 01:48:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-10 01:48:29,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-10 01:48:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-10 01:48:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-10 01:48:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-10 01:48:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-10 01:48:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-10 01:48:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-10 01:48:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-10 01:48:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-10 01:48:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-10 01:48:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-10 01:48:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-10 01:48:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-10 01:48:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-10 01:48:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-10 01:48:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-10 01:48:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-10 01:48:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-10 01:48:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-10 01:48:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-10 01:48:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-10 01:48:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-10 01:48:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-10 01:48:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-10 01:48:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-10 01:48:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-10 01:48:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-10 01:48:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-10 01:48:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-10 01:48:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-10 01:48:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-10 01:48:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-10 01:48:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-10 01:48:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-10 01:48:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-10 01:48:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-10 01:48:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-10 01:48:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-10 01:48:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-10 01:48:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-10 01:48:29,807 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-10 01:48:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 01:48:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 01:48:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-10 01:48:29,808 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 01:48:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-10 01:48:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-10 01:48:29,809 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-10 01:48:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-10 01:48:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-10 01:48:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-10 01:48:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-10 01:48:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-10 01:48:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-10 01:48:29,812 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 01:48:29,812 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-10 01:48:29,812 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-10 01:48:29,812 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-10 01:48:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-10 01:48:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-10 01:48:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-10 01:48:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-10 01:48:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-10 01:48:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-10 01:48:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-10 01:48:29,815 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-10 01:48:29,815 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-10 01:48:29,815 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-10 01:48:29,816 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-10 01:48:29,816 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-10 01:48:29,816 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-10 01:48:29,817 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-10 01:48:29,817 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-10 01:48:29,817 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-10 01:48:29,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-10 01:48:29,817 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-10 01:48:29,817 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-10 01:48:29,817 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-10 01:48:29,818 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-10 01:48:29,818 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-10 01:48:29,818 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-10 01:48:29,818 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-10 01:48:29,818 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-10 01:48:29,818 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-10 01:48:29,818 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-10 01:48:29,819 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-10 01:48:29,819 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-10 01:48:29,819 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-10 01:48:29,819 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-10 01:48:29,819 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-10 01:48:29,819 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-10 01:48:29,819 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-10 01:48:29,820 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-10 01:48:29,820 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-10 01:48:29,820 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-09-10 01:48:29,820 INFO L130 BoogieDeclarations]: Found specification of procedure sll_circular_create [2019-09-10 01:48:29,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 01:48:29,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 01:48:29,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:48:29,822 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:48:29,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:48:29,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 01:48:29,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:48:29,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:48:29,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:48:30,217 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-09-10 01:48:30,394 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:48:30,395 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-09-10 01:48:30,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:48:30 BoogieIcfgContainer [2019-09-10 01:48:30,396 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:48:30,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:48:30,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:48:30,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:48:30,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:48:28" (1/3) ... [2019-09-10 01:48:30,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6feed48d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:48:30, skipping insertion in model container [2019-09-10 01:48:30,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:48:29" (2/3) ... [2019-09-10 01:48:30,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6feed48d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:48:30, skipping insertion in model container [2019-09-10 01:48:30,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:48:30" (3/3) ... [2019-09-10 01:48:30,403 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_circular_traversal-1.i [2019-09-10 01:48:30,413 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:48:30,420 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:48:30,436 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:48:30,467 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:48:30,467 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:48:30,476 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:48:30,477 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:48:30,477 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:48:30,478 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:48:30,478 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:48:30,478 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:48:30,494 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2019-09-10 01:48:30,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-10 01:48:30,504 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:48:30,505 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:48:30,507 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:48:30,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:48:30,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1054550836, now seen corresponding path program 1 times [2019-09-10 01:48:30,515 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:48:30,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:48:30,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:48:30,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:48:30,572 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:48:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:48:30,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:48:30,670 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:48:30,671 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 01:48:30,671 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:48:30,676 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:48:30,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:48:30,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:48:30,692 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2019-09-10 01:48:30,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:48:30,708 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2019-09-10 01:48:30,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:48:30,709 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-09-10 01:48:30,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:48:30,718 INFO L225 Difference]: With dead ends: 35 [2019-09-10 01:48:30,718 INFO L226 Difference]: Without dead ends: 26 [2019-09-10 01:48:30,720 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:48:30,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-09-10 01:48:30,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-09-10 01:48:30,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-09-10 01:48:30,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2019-09-10 01:48:30,755 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 18 [2019-09-10 01:48:30,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:48:30,756 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2019-09-10 01:48:30,756 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:48:30,756 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2019-09-10 01:48:30,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-10 01:48:30,757 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:48:30,757 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:48:30,757 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:48:30,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:48:30,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1615663296, now seen corresponding path program 1 times [2019-09-10 01:48:30,758 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:48:30,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:48:30,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:48:30,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:48:30,760 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:48:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:48:30,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:48:30,876 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:48:30,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 01:48:30,877 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:48:30,879 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 01:48:30,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 01:48:30,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 01:48:30,881 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 5 states. [2019-09-10 01:48:30,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:48:30,954 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2019-09-10 01:48:30,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 01:48:30,955 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2019-09-10 01:48:30,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:48:30,956 INFO L225 Difference]: With dead ends: 32 [2019-09-10 01:48:30,956 INFO L226 Difference]: Without dead ends: 29 [2019-09-10 01:48:30,957 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-10 01:48:30,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-09-10 01:48:30,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2019-09-10 01:48:30,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-09-10 01:48:30,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2019-09-10 01:48:30,963 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 18 [2019-09-10 01:48:30,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:48:30,964 INFO L475 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2019-09-10 01:48:30,964 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 01:48:30,964 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2019-09-10 01:48:30,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-09-10 01:48:30,965 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:48:30,965 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:48:30,965 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:48:30,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:48:30,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1504540904, now seen corresponding path program 1 times [2019-09-10 01:48:30,966 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:48:30,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:48:30,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:48:30,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:48:30,969 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:48:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:48:31,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:48:31,111 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:48:31,111 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 01:48:31,112 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2019-09-10 01:48:31,114 INFO L207 CegarAbsIntRunner]: [7], [8], [9], [11], [15], [18], [50], [55], [61], [63], [70], [72], [78], [80], [84], [85], [89], [90], [95], [96], [97] [2019-09-10 01:48:31,149 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 01:48:31,150 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 01:48:31,223 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 01:48:31,225 INFO L272 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Performed 33 root evaluator evaluations with a maximum evaluation depth of 0. Performed 33 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 33 variables. [2019-09-10 01:48:31,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:48:31,228 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 01:48:31,277 INFO L227 lantSequenceWeakener]: Weakened 6 states. On average, predicates are now at 88.89% of their original sizes. [2019-09-10 01:48:31,277 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 01:48:31,285 INFO L420 sIntCurrentIteration]: We unified 20 AI predicates to 20 [2019-09-10 01:48:31,285 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 01:48:31,286 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 01:48:31,286 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2019-09-10 01:48:31,286 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:48:31,286 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:48:31,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:48:31,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:48:31,287 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 4 states. [2019-09-10 01:48:31,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:48:31,288 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2019-09-10 01:48:31,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 01:48:31,288 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2019-09-10 01:48:31,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:48:31,289 INFO L225 Difference]: With dead ends: 8 [2019-09-10 01:48:31,289 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 01:48:31,289 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:48:31,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 01:48:31,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 01:48:31,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 01:48:31,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 01:48:31,290 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2019-09-10 01:48:31,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:48:31,290 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 01:48:31,290 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:48:31,290 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 01:48:31,291 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 01:48:31,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:48:31 BoogieIcfgContainer [2019-09-10 01:48:31,295 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:48:31,298 INFO L168 Benchmark]: Toolchain (without parser) took 2291.62 ms. Allocated memory was 134.2 MB in the beginning and 229.1 MB in the end (delta: 94.9 MB). Free memory was 89.0 MB in the beginning and 183.7 MB in the end (delta: -94.7 MB). Peak memory consumption was 230.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:48:31,298 INFO L168 Benchmark]: CDTParser took 0.85 ms. Allocated memory is still 134.2 MB. Free memory was 108.8 MB in the beginning and 108.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:48:31,300 INFO L168 Benchmark]: CACSL2BoogieTranslator took 659.20 ms. Allocated memory was 134.2 MB in the beginning and 201.9 MB in the end (delta: 67.6 MB). Free memory was 88.8 MB in the beginning and 164.1 MB in the end (delta: -75.4 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2019-09-10 01:48:31,300 INFO L168 Benchmark]: Boogie Preprocessor took 69.52 ms. Allocated memory is still 201.9 MB. Free memory was 163.6 MB in the beginning and 161.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-09-10 01:48:31,301 INFO L168 Benchmark]: RCFGBuilder took 651.87 ms. Allocated memory is still 201.9 MB. Free memory was 161.1 MB in the beginning and 118.3 MB in the end (delta: 42.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 7.1 GB. [2019-09-10 01:48:31,302 INFO L168 Benchmark]: TraceAbstraction took 898.66 ms. Allocated memory was 201.9 MB in the beginning and 229.1 MB in the end (delta: 27.3 MB). Free memory was 118.3 MB in the beginning and 183.7 MB in the end (delta: -65.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 01:48:31,307 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85 ms. Allocated memory is still 134.2 MB. Free memory was 108.8 MB in the beginning and 108.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 659.20 ms. Allocated memory was 134.2 MB in the beginning and 201.9 MB in the end (delta: 67.6 MB). Free memory was 88.8 MB in the beginning and 164.1 MB in the end (delta: -75.4 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 69.52 ms. Allocated memory is still 201.9 MB. Free memory was 163.6 MB in the beginning and 161.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 651.87 ms. Allocated memory is still 201.9 MB. Free memory was 161.1 MB in the beginning and 118.3 MB in the end (delta: 42.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 898.66 ms. Allocated memory was 201.9 MB in the beginning and 229.1 MB in the end (delta: 27.3 MB). Free memory was 118.3 MB in the beginning and 183.7 MB in the end (delta: -65.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 609]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 42 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 72 SDtfs, 17 SDslu, 69 SDs, 0 SdLazy, 17 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9083333333333332 AbsIntWeakeningRatio, 1.45 AbsIntAvgWeakeningVarsNumRemoved, 0.7 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 1656 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/1 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...