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/forester-heap/sll-sorted-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:28:53,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:28:53,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:28:53,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:28:53,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:28:53,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:28:53,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:28:53,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:28:53,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:28:53,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:28:53,795 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:28:53,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:28:53,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:28:53,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:28:53,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:28:53,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:28:53,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:28:53,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:28:53,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:28:53,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:28:53,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:28:53,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:28:53,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:28:53,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:28:53,828 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:28:53,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:28:53,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:28:53,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:28:53,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:28:53,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:28:53,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:28:53,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:28:53,836 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:28:53,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:28:53,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:28:53,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:28:53,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:28:53,840 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:28:53,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:28:53,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:28:53,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:28:53,843 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 [2019-09-20 13:28:53,858 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:28:53,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:28:53,859 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:28:53,859 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:28:53,864 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:28:53,865 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:28:53,865 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:28:53,865 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:28:53,865 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:28:53,865 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:28:53,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:28:53,869 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:28:53,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:28:53,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:28:53,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:28:53,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:28:53,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:28:53,871 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:28:53,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:28:53,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:28:53,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:28:53,872 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:28:53,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:28:53,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:28:53,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:28:53,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:28:53,873 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:28:53,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:28:53,873 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:28:53,873 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:28:53,920 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:28:53,936 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:28:53,940 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:28:53,941 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:28:53,942 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:28:53,943 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-sorted-2.i [2019-09-20 13:28:54,014 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9d7232ac/daff9462930748819a3df80f1975e2d5/FLAG535c5df68 [2019-09-20 13:28:54,510 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:28:54,512 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-sorted-2.i [2019-09-20 13:28:54,524 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9d7232ac/daff9462930748819a3df80f1975e2d5/FLAG535c5df68 [2019-09-20 13:28:54,852 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9d7232ac/daff9462930748819a3df80f1975e2d5 [2019-09-20 13:28:54,861 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:28:54,863 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:28:54,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:54,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:28:54,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:28:54,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:54" (1/1) ... [2019-09-20 13:28:54,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab899ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:54, skipping insertion in model container [2019-09-20 13:28:54,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:54" (1/1) ... [2019-09-20 13:28:54,881 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:28:54,932 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:28:55,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:55,480 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:28:55,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:55,601 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:28:55,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:55 WrapperNode [2019-09-20 13:28:55,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:55,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:28:55,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:28:55,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:28:55,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:55" (1/1) ... [2019-09-20 13:28:55,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:55" (1/1) ... [2019-09-20 13:28:55,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:55" (1/1) ... [2019-09-20 13:28:55,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:55" (1/1) ... [2019-09-20 13:28:55,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:55" (1/1) ... [2019-09-20 13:28:55,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:55" (1/1) ... [2019-09-20 13:28:55,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:55" (1/1) ... [2019-09-20 13:28:55,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:28:55,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:28:55,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:28:55,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:28:55,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:55" (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 [2019-09-20 13:28:55,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:28:55,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:28:55,740 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:28:55,740 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-20 13:28:55,740 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-20 13:28:55,740 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-20 13:28:55,740 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-20 13:28:55,741 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-20 13:28:55,741 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-20 13:28:55,741 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-20 13:28:55,741 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-20 13:28:55,742 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-20 13:28:55,742 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-20 13:28:55,743 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-20 13:28:55,743 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-20 13:28:55,743 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-20 13:28:55,744 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-20 13:28:55,744 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-20 13:28:55,744 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-20 13:28:55,744 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-20 13:28:55,744 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-20 13:28:55,745 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-20 13:28:55,745 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-20 13:28:55,745 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-20 13:28:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-20 13:28:55,747 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-20 13:28:55,747 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-20 13:28:55,747 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-20 13:28:55,747 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-20 13:28:55,747 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-20 13:28:55,747 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-20 13:28:55,747 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-20 13:28:55,748 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-20 13:28:55,748 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-20 13:28:55,748 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-20 13:28:55,748 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-20 13:28:55,748 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-20 13:28:55,748 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-20 13:28:55,748 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-20 13:28:55,748 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-20 13:28:55,749 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-20 13:28:55,749 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-20 13:28:55,749 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-20 13:28:55,749 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-20 13:28:55,749 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-20 13:28:55,749 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-20 13:28:55,749 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-20 13:28:55,749 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-20 13:28:55,749 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-20 13:28:55,749 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-20 13:28:55,750 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-20 13:28:55,750 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-20 13:28:55,750 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-20 13:28:55,750 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:28:55,750 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-20 13:28:55,750 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-20 13:28:55,751 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:28:55,751 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-20 13:28:55,751 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-20 13:28:55,751 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-20 13:28:55,751 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-20 13:28:55,752 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-20 13:28:55,752 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-20 13:28:55,752 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-20 13:28:55,752 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-20 13:28:55,753 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-20 13:28:55,753 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-20 13:28:55,753 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-20 13:28:55,753 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-20 13:28:55,754 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-20 13:28:55,754 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-20 13:28:55,754 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-20 13:28:55,754 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-20 13:28:55,754 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-20 13:28:55,755 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-20 13:28:55,755 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-20 13:28:55,755 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-20 13:28:55,755 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-20 13:28:55,755 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-20 13:28:55,757 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-20 13:28:55,757 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-20 13:28:55,757 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-20 13:28:55,757 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-20 13:28:55,757 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-20 13:28:55,757 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-20 13:28:55,758 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-20 13:28:55,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-20 13:28:55,759 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-20 13:28:55,759 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-20 13:28:55,759 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-20 13:28:55,759 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-20 13:28:55,759 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-20 13:28:55,759 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-20 13:28:55,759 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-20 13:28:55,760 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-20 13:28:55,760 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-20 13:28:55,760 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-20 13:28:55,760 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-20 13:28:55,760 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-20 13:28:55,760 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-20 13:28:55,760 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-20 13:28:55,761 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-20 13:28:55,761 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-20 13:28:55,761 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-20 13:28:55,761 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-20 13:28:55,761 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-20 13:28:55,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:28:55,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:28:55,761 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:28:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:28:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:28:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:28:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:28:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:28:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:28:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:28:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:28:56,406 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:28:56,406 INFO L283 CfgBuilder]: Removed 20 assume(true) statements. [2019-09-20 13:28:56,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:56 BoogieIcfgContainer [2019-09-20 13:28:56,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:28:56,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:28:56,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:28:56,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:28:56,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:28:54" (1/3) ... [2019-09-20 13:28:56,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1752d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:28:56, skipping insertion in model container [2019-09-20 13:28:56,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:55" (2/3) ... [2019-09-20 13:28:56,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1752d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:28:56, skipping insertion in model container [2019-09-20 13:28:56,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:56" (3/3) ... [2019-09-20 13:28:56,416 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-sorted-2.i [2019-09-20 13:28:56,428 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:28:56,437 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-09-20 13:28:56,454 INFO L252 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-09-20 13:28:56,475 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:28:56,475 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:28:56,476 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:28:56,476 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:28:56,476 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:28:56,476 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:28:56,476 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:28:56,477 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:28:56,492 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states. [2019-09-20 13:28:56,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-20 13:28:56,502 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:56,503 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:56,505 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:56,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:56,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1220089873, now seen corresponding path program 1 times [2019-09-20 13:28:56,514 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:56,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:56,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:56,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:56,576 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:56,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:56,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:28:56,704 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:56,705 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:28:56,705 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:56,711 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:28:56,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:28:56,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:28:56,732 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 2 states. [2019-09-20 13:28:56,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:56,765 INFO L93 Difference]: Finished difference Result 61 states and 72 transitions. [2019-09-20 13:28:56,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:28:56,767 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-09-20 13:28:56,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:56,782 INFO L225 Difference]: With dead ends: 61 [2019-09-20 13:28:56,783 INFO L226 Difference]: Without dead ends: 54 [2019-09-20 13:28:56,786 INFO L636 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 [2019-09-20 13:28:56,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-09-20 13:28:56,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2019-09-20 13:28:56,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-09-20 13:28:56,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2019-09-20 13:28:56,854 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 10 [2019-09-20 13:28:56,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:56,855 INFO L475 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2019-09-20 13:28:56,855 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:28:56,855 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2019-09-20 13:28:56,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-20 13:28:56,858 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:56,858 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:56,858 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:56,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:56,860 INFO L82 PathProgramCache]: Analyzing trace with hash -850008500, now seen corresponding path program 1 times [2019-09-20 13:28:56,860 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:56,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:56,871 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:56,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:56,872 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:56,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:28:56,979 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:56,979 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:28:56,979 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:56,981 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:28:56,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:28:56,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:28:56,982 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand 3 states. [2019-09-20 13:28:57,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:57,068 INFO L93 Difference]: Finished difference Result 59 states and 70 transitions. [2019-09-20 13:28:57,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:28:57,069 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-09-20 13:28:57,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:57,071 INFO L225 Difference]: With dead ends: 59 [2019-09-20 13:28:57,071 INFO L226 Difference]: Without dead ends: 59 [2019-09-20 13:28:57,072 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:28:57,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-09-20 13:28:57,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2019-09-20 13:28:57,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-09-20 13:28:57,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2019-09-20 13:28:57,090 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 11 [2019-09-20 13:28:57,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:57,090 INFO L475 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2019-09-20 13:28:57,090 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:28:57,091 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2019-09-20 13:28:57,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-20 13:28:57,092 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:57,092 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:57,093 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:57,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:57,094 INFO L82 PathProgramCache]: Analyzing trace with hash -797008223, now seen corresponding path program 1 times [2019-09-20 13:28:57,094 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:57,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:57,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:57,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:57,121 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:57,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-20 13:28:57,212 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:57,213 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:28:57,213 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:57,213 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:28:57,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:28:57,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:28:57,214 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand 4 states. [2019-09-20 13:28:57,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:57,345 INFO L93 Difference]: Finished difference Result 90 states and 108 transitions. [2019-09-20 13:28:57,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:28:57,346 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-09-20 13:28:57,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:57,348 INFO L225 Difference]: With dead ends: 90 [2019-09-20 13:28:57,348 INFO L226 Difference]: Without dead ends: 90 [2019-09-20 13:28:57,348 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:28:57,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-09-20 13:28:57,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 56. [2019-09-20 13:28:57,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-09-20 13:28:57,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions. [2019-09-20 13:28:57,355 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 15 [2019-09-20 13:28:57,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:57,356 INFO L475 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions. [2019-09-20 13:28:57,356 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:28:57,356 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions. [2019-09-20 13:28:57,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-09-20 13:28:57,357 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:57,357 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:57,358 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:57,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:57,358 INFO L82 PathProgramCache]: Analyzing trace with hash -184366883, now seen corresponding path program 1 times [2019-09-20 13:28:57,358 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:57,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:57,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:57,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:57,363 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:57,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:28:57,689 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:28:57,690 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:28:57,692 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2019-09-20 13:28:57,694 INFO L207 CegarAbsIntRunner]: [0], [1], [2], [7], [10], [12], [15], [21], [28], [38], [52], [55], [63], [67], [70], [71], [251], [275], [276], [277] [2019-09-20 13:28:57,732 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:28:57,733 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:28:57,803 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:28:57,805 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 19 root evaluator evaluations with a maximum evaluation depth of 0. Performed 19 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 36 variables. [2019-09-20 13:28:57,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:57,809 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:28:57,843 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-09-20 13:28:57,844 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:28:57,845 INFO L420 sIntCurrentIteration]: We unified 20 AI predicates to 20 [2019-09-20 13:28:57,846 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:28:57,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:28:57,847 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2019-09-20 13:28:57,847 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:57,847 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:28:57,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:28:57,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:28:57,848 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. Second operand 2 states. [2019-09-20 13:28:57,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:57,849 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-09-20 13:28:57,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:28:57,849 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2019-09-20 13:28:57,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:57,850 INFO L225 Difference]: With dead ends: 6 [2019-09-20 13:28:57,850 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:28:57,850 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:28:57,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:28:57,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:28:57,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:28:57,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:28:57,851 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2019-09-20 13:28:57,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:57,852 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:28:57,852 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:28:57,852 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:28:57,852 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:28:57,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:28:57 BoogieIcfgContainer [2019-09-20 13:28:57,857 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:28:57,859 INFO L168 Benchmark]: Toolchain (without parser) took 2996.20 ms. Allocated memory was 138.9 MB in the beginning and 221.8 MB in the end (delta: 82.8 MB). Free memory was 85.6 MB in the beginning and 130.4 MB in the end (delta: -44.9 MB). Peak memory consumption was 38.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:57,860 INFO L168 Benchmark]: CDTParser took 1.44 ms. Allocated memory is still 138.9 MB. Free memory was 104.9 MB in the beginning and 104.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:28:57,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 737.88 ms. Allocated memory was 138.9 MB in the beginning and 198.7 MB in the end (delta: 59.8 MB). Free memory was 85.3 MB in the beginning and 163.3 MB in the end (delta: -78.0 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:57,862 INFO L168 Benchmark]: Boogie Preprocessor took 74.16 ms. Allocated memory is still 198.7 MB. Free memory was 163.3 MB in the beginning and 160.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:57,863 INFO L168 Benchmark]: RCFGBuilder took 731.03 ms. Allocated memory is still 198.7 MB. Free memory was 160.1 MB in the beginning and 106.4 MB in the end (delta: 53.8 MB). Peak memory consumption was 53.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:57,864 INFO L168 Benchmark]: TraceAbstraction took 1448.46 ms. Allocated memory was 198.7 MB in the beginning and 221.8 MB in the end (delta: 23.1 MB). Free memory was 106.4 MB in the beginning and 130.4 MB in the end (delta: -24.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:28:57,868 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.44 ms. Allocated memory is still 138.9 MB. Free memory was 104.9 MB in the beginning and 104.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 737.88 ms. Allocated memory was 138.9 MB in the beginning and 198.7 MB in the end (delta: 59.8 MB). Free memory was 85.3 MB in the beginning and 163.3 MB in the end (delta: -78.0 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 74.16 ms. Allocated memory is still 198.7 MB. Free memory was 163.3 MB in the beginning and 160.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 731.03 ms. Allocated memory is still 198.7 MB. Free memory was 160.1 MB in the beginning and 106.4 MB in the end (delta: 53.8 MB). Peak memory consumption was 53.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1448.46 ms. Allocated memory was 198.7 MB in the beginning and 221.8 MB in the end (delta: 23.1 MB). Free memory was 106.4 MB in the beginning and 130.4 MB in the end (delta: -24.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1013]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1018]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1051]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1044]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1045]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1025]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1052]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 67 locations, 7 error locations. SAFE Result, 1.3s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 178 SDtfs, 161 SDslu, 58 SDs, 0 SdLazy, 53 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred 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, 0.9125 AbsIntWeakeningRatio, 1.45 AbsIntAvgWeakeningVarsNumRemoved, 0.3 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 35 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 5813 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...