java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/list-simple/dll2c_prepend_unequal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:07:10,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:07:10,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:07:10,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:07:10,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:07:10,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:07:10,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:07:10,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:07:10,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:07:10,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:07:10,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:07:10,779 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:07:10,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:07:10,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:07:10,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:07:10,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:07:10,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:07:10,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:07:10,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:07:10,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:07:10,789 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:07:10,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:07:10,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:07:10,792 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:07:10,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:07:10,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:07:10,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:07:10,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:07:10,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:07:10,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:07:10,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:07:10,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:07:10,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:07:10,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:07:10,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:07:10,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:07:10,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:07:10,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:07:10,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:07:10,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:07:10,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:07:10,805 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-16 17:07:10,820 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:07:10,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:07:10,822 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:07:10,822 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:07:10,823 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:07:10,823 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:07:10,823 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:07:10,824 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:07:10,824 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:07:10,824 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:07:10,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:07:10,825 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:07:10,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:07:10,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:07:10,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:07:10,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:07:10,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:07:10,826 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:07:10,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:07:10,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:07:10,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:07:10,827 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:07:10,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:07:10,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:07:10,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:07:10,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:07:10,828 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:07:10,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:07:10,828 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:07:10,828 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:07:10,855 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:07:10,869 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:07:10,873 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:07:10,876 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:07:10,876 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:07:10,877 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2c_prepend_unequal.i [2019-09-16 17:07:10,947 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eeac4c4b/32991245be874e7cbcf03ad95bc75246/FLAG218ea4530 [2019-09-16 17:07:11,525 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:07:11,525 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2c_prepend_unequal.i [2019-09-16 17:07:11,539 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eeac4c4b/32991245be874e7cbcf03ad95bc75246/FLAG218ea4530 [2019-09-16 17:07:11,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eeac4c4b/32991245be874e7cbcf03ad95bc75246 [2019-09-16 17:07:11,796 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:07:11,799 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:07:11,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:11,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:07:11,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:07:11,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:11" (1/1) ... [2019-09-16 17:07:11,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ee14b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:11, skipping insertion in model container [2019-09-16 17:07:11,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:11" (1/1) ... [2019-09-16 17:07:11,820 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:07:11,872 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:07:12,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:12,293 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:07:12,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:12,420 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:07:12,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:12 WrapperNode [2019-09-16 17:07:12,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:12,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:07:12,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:07:12,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:07:12,435 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:12" (1/1) ... [2019-09-16 17:07:12,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:12" (1/1) ... [2019-09-16 17:07:12,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:12" (1/1) ... [2019-09-16 17:07:12,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:12" (1/1) ... [2019-09-16 17:07:12,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:12" (1/1) ... [2019-09-16 17:07:12,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:12" (1/1) ... [2019-09-16 17:07:12,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:12" (1/1) ... [2019-09-16 17:07:12,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:07:12,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:07:12,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:07:12,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:07:12,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:07:12,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:07:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:07:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-16 17:07:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-16 17:07:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-09-16 17:07:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-09-16 17:07:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_create [2019-09-16 17:07:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_destroy [2019-09-16 17:07:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_prepend [2019-09-16 17:07:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:07:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:07:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-16 17:07:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-16 17:07:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-16 17:07:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-16 17:07:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-16 17:07:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-16 17:07:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-16 17:07:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-16 17:07:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-16 17:07:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-16 17:07:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-16 17:07:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-16 17:07:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-16 17:07:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-16 17:07:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-16 17:07:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-16 17:07:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-16 17:07:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-16 17:07:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-16 17:07:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-16 17:07:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-16 17:07:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-16 17:07:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-16 17:07:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-16 17:07:12,555 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-16 17:07:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-16 17:07:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-16 17:07:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-16 17:07:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-16 17:07:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-16 17:07:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-16 17:07:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-16 17:07:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-16 17:07:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-16 17:07:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-16 17:07:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-16 17:07:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-16 17:07:12,558 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-16 17:07:12,558 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-16 17:07:12,558 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-16 17:07:12,558 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-16 17:07:12,558 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-16 17:07:12,558 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-16 17:07:12,558 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-16 17:07:12,559 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-16 17:07:12,559 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-16 17:07:12,559 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-16 17:07:12,559 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-16 17:07:12,559 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-16 17:07:12,559 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-16 17:07:12,560 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-16 17:07:12,560 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-16 17:07:12,560 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:07:12,560 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-16 17:07:12,560 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-16 17:07:12,560 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:07:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-16 17:07:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-16 17:07:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-16 17:07:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-16 17:07:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-16 17:07:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-16 17:07:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-16 17:07:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-16 17:07:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-16 17:07:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-16 17:07:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-16 17:07:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-16 17:07:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-16 17:07:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-16 17:07:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-16 17:07:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-16 17:07:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-16 17:07:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-16 17:07:12,564 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-16 17:07:12,564 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-16 17:07:12,564 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-16 17:07:12,564 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-16 17:07:12,564 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-16 17:07:12,564 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-16 17:07:12,564 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-16 17:07:12,565 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-16 17:07:12,565 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-16 17:07:12,565 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-16 17:07:12,565 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-16 17:07:12,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-16 17:07:12,565 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-16 17:07:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-16 17:07:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-16 17:07:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-16 17:07:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-16 17:07:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-16 17:07:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-16 17:07:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-16 17:07:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-16 17:07:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-16 17:07:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-16 17:07:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-16 17:07:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-16 17:07:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-16 17:07:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-16 17:07:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-16 17:07:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-16 17:07:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-16 17:07:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-16 17:07:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-09-16 17:07:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-09-16 17:07:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:07:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:07:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:07:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_create [2019-09-16 17:07:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_destroy [2019-09-16 17:07:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:07:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:07:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_prepend [2019-09-16 17:07:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:07:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:07:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-16 17:07:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:07:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:07:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:07:13,031 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-09-16 17:07:13,204 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:07:13,204 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-09-16 17:07:13,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:13 BoogieIcfgContainer [2019-09-16 17:07:13,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:07:13,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:07:13,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:07:13,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:07:13,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:07:11" (1/3) ... [2019-09-16 17:07:13,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb01fde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:13, skipping insertion in model container [2019-09-16 17:07:13,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:12" (2/3) ... [2019-09-16 17:07:13,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb01fde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:13, skipping insertion in model container [2019-09-16 17:07:13,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:13" (3/3) ... [2019-09-16 17:07:13,225 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2c_prepend_unequal.i [2019-09-16 17:07:13,236 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:07:13,245 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:07:13,259 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:07:13,286 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:07:13,287 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:07:13,287 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:07:13,287 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:07:13,287 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:07:13,288 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:07:13,288 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:07:13,288 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:07:13,304 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2019-09-16 17:07:13,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-09-16 17:07:13,315 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:13,316 INFO L407 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:13,317 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:13,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:13,322 INFO L82 PathProgramCache]: Analyzing trace with hash 619880496, now seen corresponding path program 1 times [2019-09-16 17:07:13,324 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:13,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:13,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:13,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:13,393 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:13,635 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-16 17:07:13,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:13,639 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:07:13,639 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:13,645 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:07:13,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:07:13,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:13,667 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2019-09-16 17:07:13,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:13,695 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2019-09-16 17:07:13,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:07:13,697 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 35 [2019-09-16 17:07:13,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:13,708 INFO L225 Difference]: With dead ends: 55 [2019-09-16 17:07:13,709 INFO L226 Difference]: Without dead ends: 40 [2019-09-16 17:07:13,712 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:13,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-09-16 17:07:13,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-09-16 17:07:13,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-09-16 17:07:13,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2019-09-16 17:07:13,770 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 35 [2019-09-16 17:07:13,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:13,772 INFO L475 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2019-09-16 17:07:13,773 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:07:13,773 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2019-09-16 17:07:13,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-09-16 17:07:13,776 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:13,777 INFO L407 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:13,777 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:13,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:13,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1639628125, now seen corresponding path program 1 times [2019-09-16 17:07:13,779 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:13,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:13,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:13,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:13,788 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:13,964 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-16 17:07:13,964 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:13,964 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:07:13,965 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:13,966 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:07:13,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:07:13,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:07:13,967 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand 5 states. [2019-09-16 17:07:14,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:14,042 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2019-09-16 17:07:14,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:07:14,043 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2019-09-16 17:07:14,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:14,046 INFO L225 Difference]: With dead ends: 48 [2019-09-16 17:07:14,046 INFO L226 Difference]: Without dead ends: 45 [2019-09-16 17:07:14,047 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:07:14,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-09-16 17:07:14,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2019-09-16 17:07:14,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-09-16 17:07:14,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2019-09-16 17:07:14,059 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 35 [2019-09-16 17:07:14,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:14,060 INFO L475 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2019-09-16 17:07:14,060 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:07:14,060 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2019-09-16 17:07:14,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-09-16 17:07:14,063 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:14,064 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:14,064 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:14,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:14,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1024501097, now seen corresponding path program 1 times [2019-09-16 17:07:14,065 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:14,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:14,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:14,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:14,070 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:14,632 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-16 17:07:14,632 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:07:14,632 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:07:14,633 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 46 with the following transitions: [2019-09-16 17:07:14,635 INFO L207 CegarAbsIntRunner]: [0], [2], [9], [11], [13], [16], [20], [24], [25], [33], [39], [41], [42], [43], [44], [45], [47], [49], [52], [81], [110], [112], [115], [119], [120], [121], [122], [123], [126], [127], [128], [129], [132], [133], [134], [136], [137] [2019-09-16 17:07:14,679 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:07:14,680 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:07:14,742 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:07:14,744 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 21 root evaluator evaluations with a maximum evaluation depth of 0. Performed 21 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 28 variables. [2019-09-16 17:07:14,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:14,748 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:07:14,804 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-09-16 17:07:14,805 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:07:14,810 INFO L420 sIntCurrentIteration]: We unified 44 AI predicates to 44 [2019-09-16 17:07:14,811 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:07:14,811 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:07:14,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [18] total 18 [2019-09-16 17:07:14,812 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:14,813 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:07:14,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:07:14,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:14,814 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand 2 states. [2019-09-16 17:07:14,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:14,817 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-09-16 17:07:14,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:07:14,818 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 45 [2019-09-16 17:07:14,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:14,818 INFO L225 Difference]: With dead ends: 6 [2019-09-16 17:07:14,818 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:07:14,819 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:14,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:07:14,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:07:14,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:07:14,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:07:14,823 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2019-09-16 17:07:14,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:14,823 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:07:14,823 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:07:14,823 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:07:14,824 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:07:14,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:07:14 BoogieIcfgContainer [2019-09-16 17:07:14,829 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:07:14,833 INFO L168 Benchmark]: Toolchain (without parser) took 3034.01 ms. Allocated memory was 138.4 MB in the beginning and 228.1 MB in the end (delta: 89.7 MB). Free memory was 86.4 MB in the beginning and 116.9 MB in the end (delta: -30.4 MB). Peak memory consumption was 59.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:14,834 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:07:14,836 INFO L168 Benchmark]: CACSL2BoogieTranslator took 616.90 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 86.0 MB in the beginning and 162.9 MB in the end (delta: -76.9 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:14,839 INFO L168 Benchmark]: Boogie Preprocessor took 70.04 ms. Allocated memory is still 200.8 MB. Free memory was 162.9 MB in the beginning and 159.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:14,840 INFO L168 Benchmark]: RCFGBuilder took 714.68 ms. Allocated memory is still 200.8 MB. Free memory was 159.9 MB in the beginning and 108.2 MB in the end (delta: 51.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:14,841 INFO L168 Benchmark]: TraceAbstraction took 1621.95 ms. Allocated memory was 200.8 MB in the beginning and 228.1 MB in the end (delta: 27.3 MB). Free memory was 108.2 MB in the beginning and 116.9 MB in the end (delta: -8.7 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:14,852 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 616.90 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 86.0 MB in the beginning and 162.9 MB in the end (delta: -76.9 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.04 ms. Allocated memory is still 200.8 MB. Free memory was 162.9 MB in the beginning and 159.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 714.68 ms. Allocated memory is still 200.8 MB. Free memory was 159.9 MB in the beginning and 108.2 MB in the end (delta: 51.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1621.95 ms. Allocated memory was 200.8 MB in the beginning and 228.1 MB in the end (delta: 27.3 MB). Free memory was 108.2 MB in the beginning and 116.9 MB in the end (delta: -8.7 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 641]: 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 10 procedures, 62 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 114 SDtfs, 19 SDslu, 110 SDs, 0 SdLazy, 19 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9772727272727273 AbsIntWeakeningRatio, 1.5681818181818181 AbsIntAvgWeakeningVarsNumRemoved, 0.13636363636363635 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 13832 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 22/26 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...