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/heap-data/calendar.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 22:18:19,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 22:18:19,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 22:18:19,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 22:18:19,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 22:18:19,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 22:18:19,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 22:18:19,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 22:18:19,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 22:18:19,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 22:18:19,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 22:18:19,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 22:18:19,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 22:18:19,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 22:18:19,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 22:18:19,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 22:18:19,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 22:18:19,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 22:18:19,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 22:18:19,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 22:18:19,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 22:18:19,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 22:18:19,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 22:18:19,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 22:18:19,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 22:18:19,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 22:18:19,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 22:18:19,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 22:18:19,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 22:18:19,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 22:18:19,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 22:18:19,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 22:18:19,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 22:18:19,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 22:18:19,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 22:18:19,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 22:18:19,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 22:18:19,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 22:18:19,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 22:18:19,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 22:18:19,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 22:18:19,888 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 22:18:19,911 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 22:18:19,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 22:18:19,912 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-02 22:18:19,912 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-02 22:18:19,913 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-02 22:18:19,913 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-02 22:18:19,913 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-02 22:18:19,914 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-02 22:18:19,914 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-02 22:18:19,914 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-02 22:18:19,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 22:18:19,916 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 22:18:19,916 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 22:18:19,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 22:18:19,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 22:18:19,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 22:18:19,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 22:18:19,917 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 22:18:19,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 22:18:19,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 22:18:19,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 22:18:19,918 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-02 22:18:19,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 22:18:19,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 22:18:19,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 22:18:19,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 22:18:19,920 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-02 22:18:19,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 22:18:19,920 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 22:18:19,920 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-02 22:18:19,960 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 22:18:19,971 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 22:18:19,974 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 22:18:19,976 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 22:18:19,976 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 22:18:19,977 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/calendar.i [2019-10-02 22:18:20,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a66dd3f6/47d2dc3659184aea94fc5d7cc74cd75c/FLAGd45e10a0b [2019-10-02 22:18:20,497 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 22:18:20,498 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/calendar.i [2019-10-02 22:18:20,511 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a66dd3f6/47d2dc3659184aea94fc5d7cc74cd75c/FLAGd45e10a0b [2019-10-02 22:18:20,861 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a66dd3f6/47d2dc3659184aea94fc5d7cc74cd75c [2019-10-02 22:18:20,870 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 22:18:20,871 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 22:18:20,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 22:18:20,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 22:18:20,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 22:18:20,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 10:18:20" (1/1) ... [2019-10-02 22:18:20,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bbca3b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:20, skipping insertion in model container [2019-10-02 22:18:20,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 10:18:20" (1/1) ... [2019-10-02 22:18:20,889 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 22:18:20,926 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 22:18:21,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 22:18:21,366 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 22:18:21,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 22:18:21,479 INFO L192 MainTranslator]: Completed translation [2019-10-02 22:18:21,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:21 WrapperNode [2019-10-02 22:18:21,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 22:18:21,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 22:18:21,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 22:18:21,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 22:18:21,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:21" (1/1) ... [2019-10-02 22:18:21,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:21" (1/1) ... [2019-10-02 22:18:21,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:21" (1/1) ... [2019-10-02 22:18:21,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:21" (1/1) ... [2019-10-02 22:18:21,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:21" (1/1) ... [2019-10-02 22:18:21,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:21" (1/1) ... [2019-10-02 22:18:21,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:21" (1/1) ... [2019-10-02 22:18:21,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 22:18:21,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 22:18:21,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 22:18:21,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 22:18:21,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:21" (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 22:18:21,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 22:18:21,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 22:18:21,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-02 22:18:21,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-02 22:18:21,625 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 22:18:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 22:18:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 22:18:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-02 22:18:21,625 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-02 22:18:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-02 22:18:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-02 22:18:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-02 22:18:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-02 22:18:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-02 22:18:21,626 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-02 22:18:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-02 22:18:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-02 22:18:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-02 22:18:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-02 22:18:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-02 22:18:21,627 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-02 22:18:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-02 22:18:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-02 22:18:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-02 22:18:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-02 22:18:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-02 22:18:21,628 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-02 22:18:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-02 22:18:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-02 22:18:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-02 22:18:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-02 22:18:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-02 22:18:21,629 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-02 22:18:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-02 22:18:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-02 22:18:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-02 22:18:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-02 22:18:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-02 22:18:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-02 22:18:21,630 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-02 22:18:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-02 22:18:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-02 22:18:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-02 22:18:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-02 22:18:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-02 22:18:21,631 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-02 22:18:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-02 22:18:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-02 22:18:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-02 22:18:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-02 22:18:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-02 22:18:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-02 22:18:21,632 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-02 22:18:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-02 22:18:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-02 22:18:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-02 22:18:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-02 22:18:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-02 22:18:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-02 22:18:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 22:18:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-02 22:18:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-02 22:18:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 22:18:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-02 22:18:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-02 22:18:21,634 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-02 22:18:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-02 22:18:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-02 22:18:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-02 22:18:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-02 22:18:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-02 22:18:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-02 22:18:21,635 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-02 22:18:21,636 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-02 22:18:21,636 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-02 22:18:21,636 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-02 22:18:21,636 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-02 22:18:21,636 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-02 22:18:21,636 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-02 22:18:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-02 22:18:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-02 22:18:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-02 22:18:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-02 22:18:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-02 22:18:21,637 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-02 22:18:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-02 22:18:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-02 22:18:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-02 22:18:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-02 22:18:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-02 22:18:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-02 22:18:21,638 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-02 22:18:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-02 22:18:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-02 22:18:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-02 22:18:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-02 22:18:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-02 22:18:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-02 22:18:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-02 22:18:21,640 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-02 22:18:21,640 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-02 22:18:21,640 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-02 22:18:21,640 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-02 22:18:21,640 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-02 22:18:21,640 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-02 22:18:21,641 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-02 22:18:21,641 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-02 22:18:21,641 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-02 22:18:21,641 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-02 22:18:21,641 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-02 22:18:21,641 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-02 22:18:21,641 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-02 22:18:21,641 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 22:18:21,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 22:18:21,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 22:18:21,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 22:18:21,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 22:18:21,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 22:18:21,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 22:18:21,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 22:18:21,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 22:18:22,135 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 22:18:22,135 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-02 22:18:22,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 10:18:22 BoogieIcfgContainer [2019-10-02 22:18:22,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 22:18:22,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 22:18:22,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 22:18:22,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 22:18:22,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 10:18:20" (1/3) ... [2019-10-02 22:18:22,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b2fc68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 10:18:22, skipping insertion in model container [2019-10-02 22:18:22,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:18:21" (2/3) ... [2019-10-02 22:18:22,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b2fc68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 10:18:22, skipping insertion in model container [2019-10-02 22:18:22,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 10:18:22" (3/3) ... [2019-10-02 22:18:22,145 INFO L109 eAbstractionObserver]: Analyzing ICFG calendar.i [2019-10-02 22:18:22,155 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 22:18:22,167 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 22:18:22,184 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 22:18:22,214 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 22:18:22,215 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-02 22:18:22,218 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 22:18:22,219 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 22:18:22,219 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 22:18:22,220 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 22:18:22,227 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 22:18:22,227 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 22:18:22,244 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-10-02 22:18:22,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-02 22:18:22,254 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:18:22,255 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:18:22,257 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:18:22,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:18:22,263 INFO L82 PathProgramCache]: Analyzing trace with hash -426842945, now seen corresponding path program 1 times [2019-10-02 22:18:22,266 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:18:22,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:22,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:18:22,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:22,338 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:18:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:18:22,403 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 22:18:22,405 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:18:22,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 22:18:22,406 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:18:22,409 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 22:18:22,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 22:18:22,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 22:18:22,422 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-10-02 22:18:22,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:18:22,439 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2019-10-02 22:18:22,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 22:18:22,441 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-10-02 22:18:22,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:18:22,450 INFO L225 Difference]: With dead ends: 26 [2019-10-02 22:18:22,450 INFO L226 Difference]: Without dead ends: 22 [2019-10-02 22:18:22,452 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 22:18:22,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-10-02 22:18:22,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-10-02 22:18:22,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-10-02 22:18:22,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2019-10-02 22:18:22,487 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 28 transitions. Word has length 14 [2019-10-02 22:18:22,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:18:22,488 INFO L475 AbstractCegarLoop]: Abstraction has 22 states and 28 transitions. [2019-10-02 22:18:22,488 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 22:18:22,488 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2019-10-02 22:18:22,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-02 22:18:22,489 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:18:22,489 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:18:22,489 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:18:22,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:18:22,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1680745112, now seen corresponding path program 1 times [2019-10-02 22:18:22,490 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:18:22,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:22,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:18:22,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:22,495 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:18:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:18:22,605 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 22:18:22,606 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:18:22,606 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-02 22:18:22,606 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:18:22,608 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-02 22:18:22,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-02 22:18:22,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-02 22:18:22,609 INFO L87 Difference]: Start difference. First operand 22 states and 28 transitions. Second operand 4 states. [2019-10-02 22:18:22,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:18:22,676 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2019-10-02 22:18:22,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-02 22:18:22,677 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-10-02 22:18:22,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:18:22,679 INFO L225 Difference]: With dead ends: 29 [2019-10-02 22:18:22,679 INFO L226 Difference]: Without dead ends: 27 [2019-10-02 22:18:22,680 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-02 22:18:22,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-10-02 22:18:22,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-10-02 22:18:22,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-02 22:18:22,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2019-10-02 22:18:22,685 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 15 [2019-10-02 22:18:22,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:18:22,686 INFO L475 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2019-10-02 22:18:22,686 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-02 22:18:22,686 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2019-10-02 22:18:22,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-02 22:18:22,687 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:18:22,687 INFO L411 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:18:22,687 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:18:22,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:18:22,688 INFO L82 PathProgramCache]: Analyzing trace with hash -911347556, now seen corresponding path program 1 times [2019-10-02 22:18:22,688 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:18:22,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:22,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:18:22,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:22,693 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:18:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:18:22,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:18:22,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:18:22,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 22:18:22,972 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:18:22,972 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 22:18:22,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 22:18:22,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-02 22:18:22,973 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand 8 states. [2019-10-02 22:18:23,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:18:23,522 INFO L93 Difference]: Finished difference Result 72 states and 92 transitions. [2019-10-02 22:18:23,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-02 22:18:23,523 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2019-10-02 22:18:23,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:18:23,525 INFO L225 Difference]: With dead ends: 72 [2019-10-02 22:18:23,525 INFO L226 Difference]: Without dead ends: 72 [2019-10-02 22:18:23,526 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=149, Invalid=357, Unknown=0, NotChecked=0, Total=506 [2019-10-02 22:18:23,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-10-02 22:18:23,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 31. [2019-10-02 22:18:23,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-02 22:18:23,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 40 transitions. [2019-10-02 22:18:23,533 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 40 transitions. Word has length 19 [2019-10-02 22:18:23,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:18:23,533 INFO L475 AbstractCegarLoop]: Abstraction has 31 states and 40 transitions. [2019-10-02 22:18:23,533 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 22:18:23,533 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 40 transitions. [2019-10-02 22:18:23,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-02 22:18:23,534 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:18:23,535 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] [2019-10-02 22:18:23,535 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:18:23,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:18:23,535 INFO L82 PathProgramCache]: Analyzing trace with hash 369932898, now seen corresponding path program 1 times [2019-10-02 22:18:23,535 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:18:23,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:23,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:18:23,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:23,540 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:18:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:18:23,616 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-02 22:18:23,616 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:18:23,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 22:18:23,616 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:18:23,617 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 22:18:23,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 22:18:23,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-02 22:18:23,618 INFO L87 Difference]: Start difference. First operand 31 states and 40 transitions. Second operand 5 states. [2019-10-02 22:18:23,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:18:23,693 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions. [2019-10-02 22:18:23,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-02 22:18:23,694 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-10-02 22:18:23,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:18:23,695 INFO L225 Difference]: With dead ends: 42 [2019-10-02 22:18:23,695 INFO L226 Difference]: Without dead ends: 42 [2019-10-02 22:18:23,695 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-02 22:18:23,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-10-02 22:18:23,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 34. [2019-10-02 22:18:23,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-10-02 22:18:23,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 43 transitions. [2019-10-02 22:18:23,700 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 43 transitions. Word has length 21 [2019-10-02 22:18:23,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:18:23,701 INFO L475 AbstractCegarLoop]: Abstraction has 34 states and 43 transitions. [2019-10-02 22:18:23,701 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 22:18:23,701 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2019-10-02 22:18:23,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-02 22:18:23,702 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:18:23,702 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] [2019-10-02 22:18:23,702 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:18:23,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:18:23,703 INFO L82 PathProgramCache]: Analyzing trace with hash 369992480, now seen corresponding path program 1 times [2019-10-02 22:18:23,703 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:18:23,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:23,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:18:23,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:23,706 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:18:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:18:23,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-02 22:18:23,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:18:23,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-02 22:18:23,755 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:18:23,755 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-02 22:18:23,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-02 22:18:23,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-02 22:18:23,756 INFO L87 Difference]: Start difference. First operand 34 states and 43 transitions. Second operand 4 states. [2019-10-02 22:18:23,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:18:23,789 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2019-10-02 22:18:23,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-02 22:18:23,789 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2019-10-02 22:18:23,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:18:23,790 INFO L225 Difference]: With dead ends: 36 [2019-10-02 22:18:23,790 INFO L226 Difference]: Without dead ends: 36 [2019-10-02 22:18:23,791 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-02 22:18:23,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-10-02 22:18:23,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-10-02 22:18:23,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-10-02 22:18:23,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2019-10-02 22:18:23,798 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 45 transitions. Word has length 21 [2019-10-02 22:18:23,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:18:23,798 INFO L475 AbstractCegarLoop]: Abstraction has 36 states and 45 transitions. [2019-10-02 22:18:23,799 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-02 22:18:23,799 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions. [2019-10-02 22:18:23,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-02 22:18:23,799 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:18:23,800 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] [2019-10-02 22:18:23,800 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:18:23,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:18:23,801 INFO L82 PathProgramCache]: Analyzing trace with hash 2144940260, now seen corresponding path program 1 times [2019-10-02 22:18:23,801 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:18:23,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:23,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:18:23,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:23,808 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:18:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:18:24,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:18:24,012 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 22:18:24,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 22:18:24,012 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:18:24,012 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 22:18:24,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 22:18:24,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-02 22:18:24,013 INFO L87 Difference]: Start difference. First operand 36 states and 45 transitions. Second operand 8 states. [2019-10-02 22:18:24,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:18:24,295 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2019-10-02 22:18:24,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 22:18:24,295 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2019-10-02 22:18:24,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:18:24,296 INFO L225 Difference]: With dead ends: 45 [2019-10-02 22:18:24,296 INFO L226 Difference]: Without dead ends: 45 [2019-10-02 22:18:24,297 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2019-10-02 22:18:24,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-10-02 22:18:24,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2019-10-02 22:18:24,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-02 22:18:24,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2019-10-02 22:18:24,302 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 21 [2019-10-02 22:18:24,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:18:24,302 INFO L475 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2019-10-02 22:18:24,302 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 22:18:24,302 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2019-10-02 22:18:24,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-02 22:18:24,303 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 22:18:24,303 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 22:18:24,304 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 22:18:24,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:18:24,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1237427640, now seen corresponding path program 1 times [2019-10-02 22:18:24,304 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 22:18:24,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:24,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 22:18:24,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 22:18:24,308 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 22:18:24,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 22:18:24,407 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 22:18:24,408 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 22:18:24,408 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-02 22:18:24,409 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 28 with the following transitions: [2019-10-02 22:18:24,411 INFO L207 CegarAbsIntRunner]: [2], [3], [4], [12], [14], [19], [24], [28], [37], [40], [44], [47], [49], [54], [56], [60], [61], [64], [66], [71], [77], [78], [79] [2019-10-02 22:18:24,456 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-02 22:18:24,456 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-02 22:18:24,695 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-02 22:18:24,698 INFO L272 AbstractInterpreter]: Visited 13 different actions 13 times. Never merged. Never widened. Performed 37 root evaluator evaluations with a maximum evaluation depth of 7. Performed 37 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Never found a fixpoint. Largest state had 38 variables. [2019-10-02 22:18:24,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 22:18:24,702 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-02 22:18:24,796 INFO L227 lantSequenceWeakener]: Weakened 13 states. On average, predicates are now at 74.18% of their original sizes. [2019-10-02 22:18:24,797 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-02 22:18:24,832 INFO L420 sIntCurrentIteration]: We unified 26 AI predicates to 26 [2019-10-02 22:18:24,832 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-02 22:18:24,833 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 22:18:24,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2019-10-02 22:18:24,836 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 22:18:24,837 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-02 22:18:24,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-02 22:18:24,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-02 22:18:24,837 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand 7 states. [2019-10-02 22:18:24,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 22:18:24,945 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2019-10-02 22:18:24,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 22:18:24,945 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2019-10-02 22:18:24,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 22:18:24,945 INFO L225 Difference]: With dead ends: 14 [2019-10-02 22:18:24,946 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 22:18:24,946 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-02 22:18:24,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 22:18:24,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 22:18:24,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 22:18:24,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 22:18:24,947 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2019-10-02 22:18:24,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 22:18:24,947 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 22:18:24,947 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-02 22:18:24,947 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 22:18:24,947 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 22:18:24,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 10:18:24 BoogieIcfgContainer [2019-10-02 22:18:24,953 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 22:18:24,956 INFO L168 Benchmark]: Toolchain (without parser) took 4083.54 ms. Allocated memory was 140.5 MB in the beginning and 257.4 MB in the end (delta: 116.9 MB). Free memory was 87.2 MB in the beginning and 155.5 MB in the end (delta: -68.3 MB). Peak memory consumption was 48.6 MB. Max. memory is 7.1 GB. [2019-10-02 22:18:24,958 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 22:18:24,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 608.45 ms. Allocated memory was 140.5 MB in the beginning and 201.9 MB in the end (delta: 61.3 MB). Free memory was 87.0 MB in the beginning and 167.0 MB in the end (delta: -80.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2019-10-02 22:18:24,961 INFO L168 Benchmark]: Boogie Preprocessor took 81.61 ms. Allocated memory is still 201.9 MB. Free memory was 167.0 MB in the beginning and 164.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-10-02 22:18:24,962 INFO L168 Benchmark]: RCFGBuilder took 574.10 ms. Allocated memory is still 201.9 MB. Free memory was 164.6 MB in the beginning and 122.9 MB in the end (delta: 41.7 MB). Peak memory consumption was 41.7 MB. Max. memory is 7.1 GB. [2019-10-02 22:18:24,964 INFO L168 Benchmark]: TraceAbstraction took 2815.03 ms. Allocated memory was 201.9 MB in the beginning and 257.4 MB in the end (delta: 55.6 MB). Free memory was 122.3 MB in the beginning and 155.5 MB in the end (delta: -33.2 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2019-10-02 22:18:24,974 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 140.5 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 608.45 ms. Allocated memory was 140.5 MB in the beginning and 201.9 MB in the end (delta: 61.3 MB). Free memory was 87.0 MB in the beginning and 167.0 MB in the end (delta: -80.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 81.61 ms. Allocated memory is still 201.9 MB. Free memory was 167.0 MB in the beginning and 164.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 574.10 ms. Allocated memory is still 201.9 MB. Free memory was 164.6 MB in the beginning and 122.9 MB in the end (delta: 41.7 MB). Peak memory consumption was 41.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2815.03 ms. Allocated memory was 201.9 MB in the beginning and 257.4 MB in the end (delta: 55.6 MB). Free memory was 122.3 MB in the beginning and 155.5 MB in the end (delta: -33.2 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 579]: 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 5 procedures, 32 locations, 1 error locations. SAFE Result, 2.7s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 165 SDtfs, 235 SDslu, 352 SDs, 0 SdLazy, 169 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9184981684981685 AbsIntWeakeningRatio, 1.4230769230769231 AbsIntAvgWeakeningVarsNumRemoved, 1.7692307692307692 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 55 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 131 ConstructedInterpolants, 0 QuantifiedInterpolants, 14315 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 12/15 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...