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-optional-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 22:17:48,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 22:17:48,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 22:17:48,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 22:17:48,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 22:17:48,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 22:17:48,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 22:17:48,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 22:17:48,909 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 22:17:48,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 22:17:48,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 22:17:48,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 22:17:48,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 22:17:48,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 22:17:48,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 22:17:48,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 22:17:48,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 22:17:48,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 22:17:48,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 22:17:48,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 22:17:48,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 22:17:48,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 22:17:48,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 22:17:48,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 22:17:48,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 22:17:48,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 22:17:48,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 22:17:48,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 22:17:48,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 22:17:48,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 22:17:48,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 22:17:48,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 22:17:48,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 22:17:48,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 22:17:48,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 22:17:48,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 22:17:48,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 22:17:48,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 22:17:48,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 22:17:48,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 22:17:48,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 22:17:48,949 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 [2019-10-02 22:17:48,970 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 22:17:48,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 22:17:48,971 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-02 22:17:48,971 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-02 22:17:48,972 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-02 22:17:48,972 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-02 22:17:48,972 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-02 22:17:48,973 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-02 22:17:48,973 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-02 22:17:48,973 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-02 22:17:48,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 22:17:48,974 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 22:17:48,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 22:17:48,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 22:17:48,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 22:17:48,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 22:17:48,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 22:17:48,975 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 22:17:48,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 22:17:48,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 22:17:48,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 22:17:48,977 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-02 22:17:48,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 22:17:48,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 22:17:48,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 22:17:48,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 22:17:48,978 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-02 22:17:48,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 22:17:48,979 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 22:17:48,979 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-02 22:17:49,028 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 22:17:49,040 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 22:17:49,043 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 22:17:49,045 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 22:17:49,045 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 22:17:49,046 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-optional-1.i [2019-10-02 22:17:49,105 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfaa65966/a720126878d7464c82c20a760b5a3072/FLAG7cdf7e499 [2019-10-02 22:17:49,631 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 22:17:49,632 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-optional-1.i [2019-10-02 22:17:49,650 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfaa65966/a720126878d7464c82c20a760b5a3072/FLAG7cdf7e499 [2019-10-02 22:17:49,952 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfaa65966/a720126878d7464c82c20a760b5a3072 [2019-10-02 22:17:49,961 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 22:17:49,962 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 22:17:49,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 22:17:49,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 22:17:49,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 22:17:49,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 10:17:49" (1/1) ... [2019-10-02 22:17:49,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76bbe244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:49, skipping insertion in model container [2019-10-02 22:17:49,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 10:17:49" (1/1) ... [2019-10-02 22:17:49,978 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 22:17:50,032 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 22:17:50,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 22:17:50,578 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 22:17:50,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 22:17:50,674 INFO L192 MainTranslator]: Completed translation [2019-10-02 22:17:50,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:50 WrapperNode [2019-10-02 22:17:50,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 22:17:50,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 22:17:50,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 22:17:50,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 22:17:50,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:50" (1/1) ... [2019-10-02 22:17:50,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:50" (1/1) ... [2019-10-02 22:17:50,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:50" (1/1) ... [2019-10-02 22:17:50,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:50" (1/1) ... [2019-10-02 22:17:50,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:50" (1/1) ... [2019-10-02 22:17:50,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:50" (1/1) ... [2019-10-02 22:17:50,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:50" (1/1) ... [2019-10-02 22:17:50,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 22:17:50,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 22:17:50,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 22:17:50,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 22:17:50,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:50" (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 [2019-10-02 22:17:50,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 22:17:50,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 22:17:50,812 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 22:17:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-02 22:17:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-02 22:17:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-02 22:17:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-02 22:17:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-02 22:17:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-02 22:17:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-02 22:17:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-02 22:17:50,814 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-02 22:17:50,814 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-02 22:17:50,814 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-02 22:17:50,814 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-02 22:17:50,815 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-02 22:17:50,815 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-02 22:17:50,815 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-02 22:17:50,815 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-02 22:17:50,815 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-02 22:17:50,815 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-02 22:17:50,816 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-02 22:17:50,816 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-02 22:17:50,816 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-02 22:17:50,816 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-02 22:17:50,816 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-02 22:17:50,816 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-02 22:17:50,817 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-02 22:17:50,817 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-02 22:17:50,817 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-02 22:17:50,817 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-02 22:17:50,817 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-02 22:17:50,817 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-02 22:17:50,818 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-02 22:17:50,818 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-02 22:17:50,818 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-02 22:17:50,818 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-02 22:17:50,818 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-02 22:17:50,818 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-02 22:17:50,818 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-02 22:17:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-02 22:17:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-02 22:17:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-02 22:17:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-02 22:17:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-02 22:17:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-02 22:17:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-02 22:17:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-02 22:17:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-02 22:17:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-02 22:17:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-02 22:17:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-02 22:17:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-02 22:17:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 22:17:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-02 22:17:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-02 22:17:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 22:17:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-02 22:17:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-02 22:17:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-02 22:17:50,822 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-02 22:17:50,822 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-02 22:17:50,822 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-02 22:17:50,822 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-02 22:17:50,822 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-02 22:17:50,822 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-02 22:17:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-02 22:17:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-02 22:17:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-02 22:17:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-02 22:17:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-02 22:17:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-02 22:17:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-02 22:17:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-02 22:17:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-02 22:17:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-02 22:17:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-02 22:17:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-02 22:17:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-02 22:17:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-02 22:17:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-02 22:17:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-02 22:17:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-02 22:17:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-02 22:17:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-02 22:17:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-02 22:17:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-02 22:17:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-02 22:17:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-02 22:17:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-02 22:17:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-02 22:17:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-02 22:17:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-02 22:17:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-02 22:17:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-02 22:17:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-02 22:17:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-02 22:17:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-02 22:17:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-02 22:17:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-02 22:17:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-02 22:17:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-02 22:17:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-02 22:17:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-02 22:17:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-02 22:17:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-02 22:17:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 22:17:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 22:17:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 22:17:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 22:17:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 22:17:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 22:17:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 22:17:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 22:17:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 22:17:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 22:17:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 22:17:51,419 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 22:17:51,420 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-02 22:17:51,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 10:17:51 BoogieIcfgContainer [2019-10-02 22:17:51,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 22:17:51,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 22:17:51,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 22:17:51,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 22:17:51,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 10:17:49" (1/3) ... [2019-10-02 22:17:51,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518b14a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 10:17:51, skipping insertion in model container [2019-10-02 22:17:51,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:17:50" (2/3) ... [2019-10-02 22:17:51,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518b14a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 10:17:51, skipping insertion in model container [2019-10-02 22:17:51,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 10:17:51" (3/3) ... [2019-10-02 22:17:51,429 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-optional-1.i [2019-10-02 22:17:51,438 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 22:17:51,446 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 22:17:51,463 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 22:17:51,489 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 22:17:51,490 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-02 22:17:51,490 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 22:17:51,490 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 22:17:51,490 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 22:17:51,490 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 22:17:51,490 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 22:17:51,491 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 22:17:51,505 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2019-10-02 22:17:51,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-02 22:17:51,515 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:17:51,516 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:17:51,518 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:17:51,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:17:51,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1058539334, now seen corresponding path program 1 times [2019-10-02 22:17:51,527 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:17:51,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:51,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:17:51,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:51,595 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:17:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:17:51,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:17:51,704 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:17:51,704 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 22:17:51,704 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:17:51,713 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 22:17:51,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 22:17:51,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 22:17:51,731 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2019-10-02 22:17:51,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:17:51,749 INFO L93 Difference]: Finished difference Result 34 states and 44 transitions. [2019-10-02 22:17:51,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 22:17:51,751 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-02 22:17:51,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:17:51,762 INFO L225 Difference]: With dead ends: 34 [2019-10-02 22:17:51,762 INFO L226 Difference]: Without dead ends: 25 [2019-10-02 22:17:51,764 INFO L640 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 [2019-10-02 22:17:51,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-02 22:17:51,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-10-02 22:17:51,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-02 22:17:51,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2019-10-02 22:17:51,802 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 33 transitions. Word has length 19 [2019-10-02 22:17:51,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:17:51,802 INFO L475 AbstractCegarLoop]: Abstraction has 25 states and 33 transitions. [2019-10-02 22:17:51,802 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 22:17:51,802 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2019-10-02 22:17:51,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-02 22:17:51,803 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:17:51,804 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:17:51,804 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:17:51,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:17:51,804 INFO L82 PathProgramCache]: Analyzing trace with hash 984767148, now seen corresponding path program 1 times [2019-10-02 22:17:51,805 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:17:51,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:51,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:17:51,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:51,810 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:17:51,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:17:51,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:17:51,903 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:17:51,904 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 22:17:51,904 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:17:51,909 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 22:17:51,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 22:17:51,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 22:17:51,910 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand 3 states. [2019-10-02 22:17:51,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:17:51,934 INFO L93 Difference]: Finished difference Result 26 states and 34 transitions. [2019-10-02 22:17:51,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 22:17:51,934 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-10-02 22:17:51,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:17:51,936 INFO L225 Difference]: With dead ends: 26 [2019-10-02 22:17:51,936 INFO L226 Difference]: Without dead ends: 26 [2019-10-02 22:17:51,937 INFO L640 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 [2019-10-02 22:17:51,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-10-02 22:17:51,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-10-02 22:17:51,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-02 22:17:51,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-10-02 22:17:51,942 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 20 [2019-10-02 22:17:51,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:17:51,943 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-10-02 22:17:51,943 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 22:17:51,943 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2019-10-02 22:17:51,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-02 22:17:51,944 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:17:51,944 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:17:51,944 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:17:51,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:17:51,945 INFO L82 PathProgramCache]: Analyzing trace with hash 984769070, now seen corresponding path program 1 times [2019-10-02 22:17:51,945 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:17:51,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:51,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:17:51,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:51,950 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:17:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:17:52,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:17:52,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:17:52,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-02 22:17:52,072 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:17:52,072 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 22:17:52,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 22:17:52,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-02 22:17:52,073 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand 6 states. [2019-10-02 22:17:52,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:17:52,290 INFO L93 Difference]: Finished difference Result 40 states and 53 transitions. [2019-10-02 22:17:52,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 22:17:52,292 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-10-02 22:17:52,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:17:52,293 INFO L225 Difference]: With dead ends: 40 [2019-10-02 22:17:52,294 INFO L226 Difference]: Without dead ends: 40 [2019-10-02 22:17:52,296 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-10-02 22:17:52,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-10-02 22:17:52,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 30. [2019-10-02 22:17:52,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-10-02 22:17:52,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2019-10-02 22:17:52,305 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 20 [2019-10-02 22:17:52,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:17:52,306 INFO L475 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-10-02 22:17:52,306 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 22:17:52,306 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2019-10-02 22:17:52,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-02 22:17:52,307 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:17:52,307 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:17:52,308 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:17:52,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:17:52,308 INFO L82 PathProgramCache]: Analyzing trace with hash 982922028, now seen corresponding path program 1 times [2019-10-02 22:17:52,308 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:17:52,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:52,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:17:52,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:52,316 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:17:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:17:52,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:17:52,647 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:17:52,647 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-02 22:17:52,648 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:17:52,648 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-02 22:17:52,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-02 22:17:52,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-02 22:17:52,649 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 7 states. [2019-10-02 22:17:53,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:17:53,157 INFO L93 Difference]: Finished difference Result 70 states and 91 transitions. [2019-10-02 22:17:53,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 22:17:53,157 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2019-10-02 22:17:53,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:17:53,159 INFO L225 Difference]: With dead ends: 70 [2019-10-02 22:17:53,159 INFO L226 Difference]: Without dead ends: 70 [2019-10-02 22:17:53,159 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2019-10-02 22:17:53,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-10-02 22:17:53,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 43. [2019-10-02 22:17:53,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-10-02 22:17:53,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2019-10-02 22:17:53,167 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 20 [2019-10-02 22:17:53,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:17:53,167 INFO L475 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2019-10-02 22:17:53,167 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-02 22:17:53,167 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2019-10-02 22:17:53,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-02 22:17:53,168 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:17:53,168 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:17:53,169 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:17:53,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:17:53,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1535190864, now seen corresponding path program 1 times [2019-10-02 22:17:53,169 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:17:53,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:53,172 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:17:53,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:53,173 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:17:53,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:17:53,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:17:53,226 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:17:53,226 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-02 22:17:53,226 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:17:53,226 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 22:17:53,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 22:17:53,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-02 22:17:53,227 INFO L87 Difference]: Start difference. First operand 43 states and 57 transitions. Second operand 6 states. [2019-10-02 22:17:53,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:17:53,412 INFO L93 Difference]: Finished difference Result 61 states and 79 transitions. [2019-10-02 22:17:53,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-02 22:17:53,413 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-10-02 22:17:53,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:17:53,414 INFO L225 Difference]: With dead ends: 61 [2019-10-02 22:17:53,414 INFO L226 Difference]: Without dead ends: 61 [2019-10-02 22:17:53,415 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-02 22:17:53,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-10-02 22:17:53,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 41. [2019-10-02 22:17:53,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-10-02 22:17:53,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2019-10-02 22:17:53,421 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 53 transitions. Word has length 20 [2019-10-02 22:17:53,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:17:53,421 INFO L475 AbstractCegarLoop]: Abstraction has 41 states and 53 transitions. [2019-10-02 22:17:53,421 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 22:17:53,422 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2019-10-02 22:17:53,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-02 22:17:53,422 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:17:53,423 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:17:53,423 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:17:53,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:17:53,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1453356392, now seen corresponding path program 1 times [2019-10-02 22:17:53,424 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:17:53,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:53,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:17:53,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:53,427 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:17:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:17:53,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:17:53,498 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:17:53,498 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 22:17:53,498 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:17:53,499 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 22:17:53,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 22:17:53,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 22:17:53,499 INFO L87 Difference]: Start difference. First operand 41 states and 53 transitions. Second operand 5 states. [2019-10-02 22:17:53,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:17:53,672 INFO L93 Difference]: Finished difference Result 79 states and 103 transitions. [2019-10-02 22:17:53,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 22:17:53,673 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-10-02 22:17:53,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:17:53,674 INFO L225 Difference]: With dead ends: 79 [2019-10-02 22:17:53,674 INFO L226 Difference]: Without dead ends: 79 [2019-10-02 22:17:53,675 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-02 22:17:53,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-10-02 22:17:53,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 49. [2019-10-02 22:17:53,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-10-02 22:17:53,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 64 transitions. [2019-10-02 22:17:53,692 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 64 transitions. Word has length 21 [2019-10-02 22:17:53,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:17:53,692 INFO L475 AbstractCegarLoop]: Abstraction has 49 states and 64 transitions. [2019-10-02 22:17:53,692 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 22:17:53,692 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 64 transitions. [2019-10-02 22:17:53,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-02 22:17:53,693 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:17:53,694 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:17:53,694 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:17:53,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:17:53,694 INFO L82 PathProgramCache]: Analyzing trace with hash 53120986, now seen corresponding path program 1 times [2019-10-02 22:17:53,695 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:17:53,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:53,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:17:53,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:17:53,703 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:17:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:17:54,182 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:17:54,183 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 22:17:54,183 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-02 22:17:54,184 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2019-10-02 22:17:54,185 INFO L207 CegarAbsIntRunner]: [0], [1], [2], [5], [14], [19], [22], [24], [27], [39], [48], [52], [55], [59], [62], [66], [71], [75], [76], [118], [119], [120] [2019-10-02 22:17:54,221 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-02 22:17:54,221 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-02 22:17:54,284 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-02 22:17:54,285 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 49 variables. [2019-10-02 22:17:54,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:17:54,290 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-02 22:17:54,323 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-02 22:17:54,323 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-02 22:17:54,325 INFO L420 sIntCurrentIteration]: We unified 22 AI predicates to 22 [2019-10-02 22:17:54,325 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-02 22:17:54,326 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 22:17:54,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [12] total 12 [2019-10-02 22:17:54,326 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:17:54,327 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 22:17:54,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 22:17:54,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 22:17:54,328 INFO L87 Difference]: Start difference. First operand 49 states and 64 transitions. Second operand 2 states. [2019-10-02 22:17:54,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:17:54,328 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-10-02 22:17:54,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 22:17:54,329 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2019-10-02 22:17:54,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:17:54,329 INFO L225 Difference]: With dead ends: 6 [2019-10-02 22:17:54,329 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 22:17:54,330 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 22:17:54,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 22:17:54,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 22:17:54,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 22:17:54,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 22:17:54,331 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2019-10-02 22:17:54,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:17:54,331 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 22:17:54,331 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 22:17:54,331 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 22:17:54,331 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 22:17:54,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 10:17:54 BoogieIcfgContainer [2019-10-02 22:17:54,336 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 22:17:54,339 INFO L168 Benchmark]: Toolchain (without parser) took 4375.23 ms. Allocated memory was 133.7 MB in the beginning and 257.4 MB in the end (delta: 123.7 MB). Free memory was 88.4 MB in the beginning and 128.5 MB in the end (delta: -40.1 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2019-10-02 22:17:54,339 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 133.7 MB. Free memory is still 107.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-02 22:17:54,340 INFO L168 Benchmark]: CACSL2BoogieTranslator took 711.54 ms. Allocated memory was 133.7 MB in the beginning and 202.4 MB in the end (delta: 68.7 MB). Free memory was 88.0 MB in the beginning and 166.4 MB in the end (delta: -78.4 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2019-10-02 22:17:54,341 INFO L168 Benchmark]: Boogie Preprocessor took 71.14 ms. Allocated memory is still 202.4 MB. Free memory was 166.4 MB in the beginning and 162.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2019-10-02 22:17:54,342 INFO L168 Benchmark]: RCFGBuilder took 674.69 ms. Allocated memory is still 202.4 MB. Free memory was 162.8 MB in the beginning and 115.6 MB in the end (delta: 47.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 7.1 GB. [2019-10-02 22:17:54,343 INFO L168 Benchmark]: TraceAbstraction took 2913.84 ms. Allocated memory was 202.4 MB in the beginning and 257.4 MB in the end (delta: 55.1 MB). Free memory was 114.7 MB in the beginning and 128.5 MB in the end (delta: -13.8 MB). Peak memory consumption was 41.3 MB. Max. memory is 7.1 GB. [2019-10-02 22:17:54,347 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 133.7 MB. Free memory is still 107.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 711.54 ms. Allocated memory was 133.7 MB in the beginning and 202.4 MB in the end (delta: 68.7 MB). Free memory was 88.0 MB in the beginning and 166.4 MB in the end (delta: -78.4 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 71.14 ms. Allocated memory is still 202.4 MB. Free memory was 166.4 MB in the beginning and 162.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 674.69 ms. Allocated memory is still 202.4 MB. Free memory was 162.8 MB in the beginning and 115.6 MB in the end (delta: 47.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2913.84 ms. Allocated memory was 202.4 MB in the beginning and 257.4 MB in the end (delta: 55.1 MB). Free memory was 114.7 MB in the beginning and 128.5 MB in the end (delta: -13.8 MB). Peak memory consumption was 41.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 996]: 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, 35 locations, 1 error locations. SAFE Result, 2.8s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 193 SDtfs, 201 SDslu, 297 SDs, 0 SdLazy, 290 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=6, 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, 0.9545454545454546 AbsIntWeakeningRatio, 2.0454545454545454 AbsIntAvgWeakeningVarsNumRemoved, 0.2727272727272727 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 87 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 33238 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 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...