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-simple-white-blue-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:07:06,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:07:06,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:07:06,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:07:06,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:07:06,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:07:06,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:07:06,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:07:06,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:07:06,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:07:06,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:07:06,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:07:06,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:07:06,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:07:06,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:07:06,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:07:06,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:07:06,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:07:06,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:07:06,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:07:06,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:07:06,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:07:06,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:07:06,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:07:06,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:07:06,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:07:06,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:07:06,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:07:06,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:07:06,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:07:06,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:07:06,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:07:06,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:07:06,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:07:06,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:07:06,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:07:06,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:07:06,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:07:06,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:07:06,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:07:06,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:07:06,919 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 [2019-09-16 17:07:06,934 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:07:06,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:07:06,935 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:07:06,935 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:07:06,935 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:07:06,936 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:07:06,936 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:07:06,936 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:07:06,936 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:07:06,936 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:07:06,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:07:06,937 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:07:06,937 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:07:06,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:07:06,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:07:06,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:07:06,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:07:06,938 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:07:06,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:07:06,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:07:06,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:07:06,939 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:07:06,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:07:06,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:07:06,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:07:06,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:07:06,941 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:07:06,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:07:06,941 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:07:06,941 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:07:06,974 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:07:06,990 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:07:06,995 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:07:06,997 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:07:06,998 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:07:06,999 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-simple-white-blue-1.i [2019-09-16 17:07:07,065 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0035045bd/52414b0f3d1b4cf78f5e25e7d58585dd/FLAG58e9e72d6 [2019-09-16 17:07:07,602 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:07:07,603 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-simple-white-blue-1.i [2019-09-16 17:07:07,618 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0035045bd/52414b0f3d1b4cf78f5e25e7d58585dd/FLAG58e9e72d6 [2019-09-16 17:07:07,905 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0035045bd/52414b0f3d1b4cf78f5e25e7d58585dd [2019-09-16 17:07:07,915 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:07:07,916 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:07:07,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:07,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:07:07,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:07:07,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:07" (1/1) ... [2019-09-16 17:07:07,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77d71a1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:07, skipping insertion in model container [2019-09-16 17:07:07,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:07" (1/1) ... [2019-09-16 17:07:07,932 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:07:07,984 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:07:08,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:08,407 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:07:08,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:08,513 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:07:08,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:08 WrapperNode [2019-09-16 17:07:08,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:08,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:07:08,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:07:08,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:07:08,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:08" (1/1) ... [2019-09-16 17:07:08,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:08" (1/1) ... [2019-09-16 17:07:08,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:08" (1/1) ... [2019-09-16 17:07:08,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:08" (1/1) ... [2019-09-16 17:07:08,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:08" (1/1) ... [2019-09-16 17:07:08,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:08" (1/1) ... [2019-09-16 17:07:08,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:08" (1/1) ... [2019-09-16 17:07:08,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:07:08,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:07:08,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:07:08,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:07:08,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:08" (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 [2019-09-16 17:07:08,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:07:08,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:07:08,641 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:07:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-16 17:07:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-16 17:07:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-16 17:07:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-16 17:07:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-16 17:07:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-16 17:07:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-16 17:07:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-16 17:07:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-16 17:07:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-16 17:07:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-16 17:07:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-16 17:07:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-16 17:07:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-16 17:07:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-16 17:07:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-16 17:07:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-16 17:07:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-16 17:07:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-16 17:07:08,644 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-16 17:07:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-16 17:07:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-16 17:07:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-16 17:07:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-16 17:07:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-16 17:07:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-16 17:07:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-16 17:07:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-16 17:07:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-16 17:07:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-16 17:07:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-16 17:07:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-16 17:07:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-16 17:07:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-16 17:07:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-16 17:07:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-16 17:07:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-16 17:07:08,647 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-16 17:07:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-16 17:07:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-16 17:07:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-16 17:07:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-16 17:07:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-16 17:07:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-16 17:07:08,648 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-16 17:07:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-16 17:07:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-16 17:07:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-16 17:07:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-16 17:07:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-16 17:07:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:07:08,649 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-16 17:07:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-16 17:07:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:07:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-16 17:07:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-16 17:07:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-16 17:07:08,650 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-16 17:07:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-16 17:07:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-16 17:07:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-16 17:07:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-16 17:07:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-16 17:07:08,651 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-16 17:07:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-16 17:07:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-16 17:07:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-16 17:07:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-16 17:07:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-16 17:07:08,652 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-16 17:07:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-16 17:07:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-16 17:07:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-16 17:07:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-16 17:07:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-16 17:07:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-16 17:07:08,653 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-16 17:07:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-16 17:07:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-16 17:07:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-16 17:07:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-16 17:07:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-16 17:07:08,654 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-16 17:07:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-16 17:07:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-16 17:07:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-16 17:07:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-16 17:07:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-16 17:07:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-16 17:07:08,655 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-16 17:07:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-16 17:07:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-16 17:07:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-16 17:07:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-16 17:07:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-16 17:07:08,656 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-16 17:07:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-16 17:07:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-16 17:07:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-16 17:07:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-16 17:07:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-16 17:07:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-16 17:07:08,657 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-16 17:07:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:07:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:07:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:07:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:07:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:07:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:07:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:07:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:07:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:07:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:07:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:07:09,163 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:07:09,164 INFO L283 CfgBuilder]: Removed 8 assume(true) statements. [2019-09-16 17:07:09,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:09 BoogieIcfgContainer [2019-09-16 17:07:09,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:07:09,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:07:09,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:07:09,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:07:09,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:07:07" (1/3) ... [2019-09-16 17:07:09,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59cd5bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:09, skipping insertion in model container [2019-09-16 17:07:09,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:08" (2/3) ... [2019-09-16 17:07:09,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59cd5bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:09, skipping insertion in model container [2019-09-16 17:07:09,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:09" (3/3) ... [2019-09-16 17:07:09,176 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-simple-white-blue-1.i [2019-09-16 17:07:09,186 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:07:09,196 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:07:09,213 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:07:09,248 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:07:09,249 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:07:09,249 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:07:09,249 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:07:09,249 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:07:09,249 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:07:09,250 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:07:09,250 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:07:09,262 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-09-16 17:07:09,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-16 17:07:09,271 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:09,272 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:09,274 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:09,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:09,280 INFO L82 PathProgramCache]: Analyzing trace with hash -2080385860, now seen corresponding path program 1 times [2019-09-16 17:07:09,282 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:09,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:09,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:09,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:09,344 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:09,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:09,442 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:09,442 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:07:09,443 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:09,447 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:07:09,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:07:09,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:09,466 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2019-09-16 17:07:09,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:09,484 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2019-09-16 17:07:09,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:07:09,486 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-09-16 17:07:09,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:09,496 INFO L225 Difference]: With dead ends: 30 [2019-09-16 17:07:09,496 INFO L226 Difference]: Without dead ends: 23 [2019-09-16 17:07:09,498 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 [2019-09-16 17:07:09,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-09-16 17:07:09,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-09-16 17:07:09,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-09-16 17:07:09,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2019-09-16 17:07:09,540 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 15 [2019-09-16 17:07:09,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:09,541 INFO L475 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2019-09-16 17:07:09,541 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:07:09,541 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2019-09-16 17:07:09,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-16 17:07:09,542 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:09,542 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:09,543 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:09,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:09,543 INFO L82 PathProgramCache]: Analyzing trace with hash 442262470, now seen corresponding path program 1 times [2019-09-16 17:07:09,544 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:09,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:09,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:09,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:09,549 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:09,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:09,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:09,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:07:09,847 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:09,850 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:07:09,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:07:09,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:07:09,852 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand 7 states. [2019-09-16 17:07:10,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:10,166 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2019-09-16 17:07:10,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:07:10,167 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-09-16 17:07:10,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:10,170 INFO L225 Difference]: With dead ends: 45 [2019-09-16 17:07:10,171 INFO L226 Difference]: Without dead ends: 45 [2019-09-16 17:07:10,172 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-09-16 17:07:10,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-09-16 17:07:10,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 29. [2019-09-16 17:07:10,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-09-16 17:07:10,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2019-09-16 17:07:10,185 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 17 [2019-09-16 17:07:10,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:10,186 INFO L475 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2019-09-16 17:07:10,186 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:07:10,186 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2019-09-16 17:07:10,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-16 17:07:10,187 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:10,188 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:10,188 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:10,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:10,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1315599595, now seen corresponding path program 1 times [2019-09-16 17:07:10,189 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:10,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:10,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:10,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:10,197 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:10,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:10,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:10,387 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:07:10,387 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:07:10,388 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2019-09-16 17:07:10,391 INFO L207 CegarAbsIntRunner]: [0], [1], [2], [7], [10], [16], [19], [42], [47], [50], [52], [56], [65], [68], [74], [113], [114], [115] [2019-09-16 17:07:10,426 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:07:10,426 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:07:10,485 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:07:10,486 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 32 variables. [2019-09-16 17:07:10,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:10,490 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:07:10,522 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-09-16 17:07:10,522 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:07:10,524 INFO L420 sIntCurrentIteration]: We unified 18 AI predicates to 18 [2019-09-16 17:07:10,524 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:07:10,524 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:07:10,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-16 17:07:10,525 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:10,525 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:07:10,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:07:10,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:10,526 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand 2 states. [2019-09-16 17:07:10,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:10,527 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-09-16 17:07:10,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:07:10,527 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-09-16 17:07:10,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:10,528 INFO L225 Difference]: With dead ends: 6 [2019-09-16 17:07:10,528 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:07:10,528 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:10,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:07:10,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:07:10,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:07:10,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:07:10,529 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-09-16 17:07:10,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:10,529 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:07:10,530 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:07:10,530 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:07:10,530 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:07:10,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:07:10 BoogieIcfgContainer [2019-09-16 17:07:10,535 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:07:10,538 INFO L168 Benchmark]: Toolchain (without parser) took 2620.70 ms. Allocated memory was 138.4 MB in the beginning and 220.2 MB in the end (delta: 81.8 MB). Free memory was 85.1 MB in the beginning and 145.4 MB in the end (delta: -60.3 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:10,539 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 104.3 MB in the beginning and 104.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:07:10,540 INFO L168 Benchmark]: CACSL2BoogieTranslator took 596.81 ms. Allocated memory was 138.4 MB in the beginning and 198.2 MB in the end (delta: 59.8 MB). Free memory was 84.9 MB in the beginning and 164.0 MB in the end (delta: -79.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:10,541 INFO L168 Benchmark]: Boogie Preprocessor took 61.90 ms. Allocated memory is still 198.2 MB. Free memory was 164.0 MB in the beginning and 160.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:10,542 INFO L168 Benchmark]: RCFGBuilder took 589.55 ms. Allocated memory is still 198.2 MB. Free memory was 160.5 MB in the beginning and 116.5 MB in the end (delta: 44.1 MB). Peak memory consumption was 44.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:10,543 INFO L168 Benchmark]: TraceAbstraction took 1368.14 ms. Allocated memory was 198.2 MB in the beginning and 220.2 MB in the end (delta: 22.0 MB). Free memory was 115.8 MB in the beginning and 145.4 MB in the end (delta: -29.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:07:10,546 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 104.3 MB in the beginning and 104.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 596.81 ms. Allocated memory was 138.4 MB in the beginning and 198.2 MB in the end (delta: 59.8 MB). Free memory was 84.9 MB in the beginning and 164.0 MB in the end (delta: -79.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 61.90 ms. Allocated memory is still 198.2 MB. Free memory was 164.0 MB in the beginning and 160.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 589.55 ms. Allocated memory is still 198.2 MB. Free memory was 160.5 MB in the beginning and 116.5 MB in the end (delta: 44.1 MB). Peak memory consumption was 44.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1368.14 ms. Allocated memory was 198.2 MB in the beginning and 220.2 MB in the end (delta: 22.0 MB). Free memory was 115.8 MB in the beginning and 145.4 MB in the end (delta: -29.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1042]: 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 3 procedures, 31 locations, 1 error locations. SAFE Result, 1.2s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 57 SDtfs, 33 SDslu, 64 SDs, 0 SdLazy, 83 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 0.9166666666666666 AbsIntWeakeningRatio, 1.1666666666666667 AbsIntAvgWeakeningVarsNumRemoved, 0.3333333333333333 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 16 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 7092 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...