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/sll2n_insert_equal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:30:37,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:30:37,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:30:38,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:30:38,002 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:30:38,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:30:38,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:30:38,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:30:38,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:30:38,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:30:38,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:30:38,012 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:30:38,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:30:38,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:30:38,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:30:38,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:30:38,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:30:38,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:30:38,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:30:38,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:30:38,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:30:38,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:30:38,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:30:38,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:30:38,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:30:38,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:30:38,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:30:38,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:30:38,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:30:38,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:30:38,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:30:38,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:30:38,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:30:38,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:30:38,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:30:38,035 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:30:38,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:30:38,036 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:30:38,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:30:38,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:30:38,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:30:38,039 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 [2019-10-03 02:30:38,054 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:30:38,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:30:38,055 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:30:38,055 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:30:38,056 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:30:38,056 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:30:38,056 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:30:38,057 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:30:38,057 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:30:38,057 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:30:38,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:30:38,058 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:30:38,058 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:30:38,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:30:38,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:30:38,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:30:38,059 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:30:38,059 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:30:38,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:30:38,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:30:38,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:30:38,060 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:30:38,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:30:38,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:30:38,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:30:38,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:30:38,061 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:30:38,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:30:38,062 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:30:38,062 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:30:38,092 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:30:38,107 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:30:38,111 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:30:38,112 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:30:38,113 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:30:38,114 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2n_insert_equal.i [2019-10-03 02:30:38,181 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7a6f13de/77ee5238b80c448d8ec957d3e1abc70f/FLAG15b919f26 [2019-10-03 02:30:38,756 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:30:38,757 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2n_insert_equal.i [2019-10-03 02:30:38,775 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7a6f13de/77ee5238b80c448d8ec957d3e1abc70f/FLAG15b919f26 [2019-10-03 02:30:38,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7a6f13de/77ee5238b80c448d8ec957d3e1abc70f [2019-10-03 02:30:39,010 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:30:39,012 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:30:39,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:30:39,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:30:39,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:30:39,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:30:39" (1/1) ... [2019-10-03 02:30:39,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1834613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:39, skipping insertion in model container [2019-10-03 02:30:39,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:30:39" (1/1) ... [2019-10-03 02:30:39,034 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:30:39,100 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:30:39,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:30:39,646 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:30:39,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:30:39,785 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:30:39,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:39 WrapperNode [2019-10-03 02:30:39,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:30:39,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:30:39,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:30:39,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:30:39,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:39" (1/1) ... [2019-10-03 02:30:39,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:39" (1/1) ... [2019-10-03 02:30:39,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:39" (1/1) ... [2019-10-03 02:30:39,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:39" (1/1) ... [2019-10-03 02:30:39,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:39" (1/1) ... [2019-10-03 02:30:39,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:39" (1/1) ... [2019-10-03 02:30:39,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:39" (1/1) ... [2019-10-03 02:30:39,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:30:39,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:30:39,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:30:39,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:30:39,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:39" (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 [2019-10-03 02:30:39,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:30:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:30:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-03 02:30:39,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-03 02:30:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-03 02:30:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-03 02:30:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2019-10-03 02:30:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2019-10-03 02:30:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_insert [2019-10-03 02:30:39,934 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:30:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:30:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-03 02:30:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-03 02:30:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-03 02:30:39,935 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-03 02:30:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-03 02:30:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-03 02:30:39,936 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-03 02:30:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-03 02:30:39,937 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-03 02:30:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-03 02:30:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-03 02:30:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-03 02:30:39,938 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-03 02:30:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-03 02:30:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-03 02:30:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-03 02:30:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-03 02:30:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-03 02:30:39,939 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-03 02:30:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-03 02:30:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-03 02:30:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-03 02:30:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-03 02:30:39,940 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-03 02:30:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-03 02:30:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-03 02:30:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-03 02:30:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-03 02:30:39,941 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-03 02:30:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-03 02:30:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-03 02:30:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-03 02:30:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-03 02:30:39,942 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-03 02:30:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-03 02:30:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-03 02:30:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-03 02:30:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-03 02:30:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-03 02:30:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-03 02:30:39,943 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-03 02:30:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-03 02:30:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-03 02:30:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-03 02:30:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-03 02:30:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-03 02:30:39,944 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-03 02:30:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-03 02:30:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-03 02:30:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-03 02:30:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-03 02:30:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-03 02:30:39,945 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:30:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-03 02:30:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-03 02:30:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:30:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-03 02:30:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-03 02:30:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-03 02:30:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-03 02:30:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-03 02:30:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-03 02:30:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-03 02:30:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-03 02:30:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-03 02:30:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-03 02:30:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-03 02:30:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-03 02:30:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-03 02:30:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-03 02:30:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-03 02:30:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-03 02:30:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-03 02:30:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-03 02:30:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-03 02:30:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-03 02:30:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-03 02:30:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-03 02:30:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-03 02:30:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-03 02:30:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-03 02:30:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-03 02:30:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-03 02:30:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-03 02:30:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-03 02:30:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-03 02:30:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-03 02:30:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-03 02:30:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-03 02:30:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-03 02:30:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-03 02:30:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-03 02:30:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-03 02:30:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-03 02:30:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-03 02:30:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-03 02:30:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-03 02:30:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-03 02:30:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-03 02:30:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-03 02:30:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-03 02:30:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-03 02:30:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-03 02:30:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-03 02:30:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-03 02:30:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-03 02:30:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-03 02:30:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:30:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:30:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:30:39,955 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2019-10-03 02:30:39,955 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2019-10-03 02:30:39,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:30:39,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:30:39,955 INFO L130 BoogieDeclarations]: Found specification of procedure sll_insert [2019-10-03 02:30:39,955 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:30:39,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:30:39,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-03 02:30:39,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:30:39,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:30:39,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:30:40,380 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-03 02:30:40,610 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:30:40,611 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-03 02:30:40,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:30:40 BoogieIcfgContainer [2019-10-03 02:30:40,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:30:40,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:30:40,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:30:40,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:30:40,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:30:39" (1/3) ... [2019-10-03 02:30:40,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dde707d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:30:40, skipping insertion in model container [2019-10-03 02:30:40,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:30:39" (2/3) ... [2019-10-03 02:30:40,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dde707d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:30:40, skipping insertion in model container [2019-10-03 02:30:40,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:30:40" (3/3) ... [2019-10-03 02:30:40,621 INFO L109 eAbstractionObserver]: Analyzing ICFG sll2n_insert_equal.i [2019-10-03 02:30:40,630 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:30:40,640 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:30:40,656 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:30:40,683 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:30:40,683 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:30:40,683 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:30:40,683 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:30:40,684 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:30:40,684 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:30:40,684 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:30:40,684 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:30:40,702 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2019-10-03 02:30:40,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-03 02:30:40,714 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:30:40,715 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:30:40,717 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:30:40,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:30:40,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1950085846, now seen corresponding path program 1 times [2019-10-03 02:30:40,725 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:30:40,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:40,791 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:30:40,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:40,791 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:30:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:30:40,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:30:41,001 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:30:41,002 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:30:41,002 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:30:41,009 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:30:41,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:30:41,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:30:41,035 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2019-10-03 02:30:41,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:30:41,067 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2019-10-03 02:30:41,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:30:41,069 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 31 [2019-10-03 02:30:41,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:30:41,081 INFO L225 Difference]: With dead ends: 49 [2019-10-03 02:30:41,082 INFO L226 Difference]: Without dead ends: 36 [2019-10-03 02:30:41,086 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 [2019-10-03 02:30:41,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-10-03 02:30:41,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-10-03 02:30:41,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-10-03 02:30:41,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2019-10-03 02:30:41,150 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 31 [2019-10-03 02:30:41,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:30:41,150 INFO L475 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2019-10-03 02:30:41,151 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:30:41,151 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2019-10-03 02:30:41,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-03 02:30:41,153 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:30:41,154 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:30:41,155 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:30:41,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:30:41,156 INFO L82 PathProgramCache]: Analyzing trace with hash -778212150, now seen corresponding path program 1 times [2019-10-03 02:30:41,156 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:30:41,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:41,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:30:41,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:41,170 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:30:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:30:41,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:30:41,377 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:30:41,377 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:30:41,378 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:30:41,403 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:30:41,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:30:41,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:30:41,404 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 3 states. [2019-10-03 02:30:41,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:30:41,427 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2019-10-03 02:30:41,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:30:41,428 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2019-10-03 02:30:41,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:30:41,432 INFO L225 Difference]: With dead ends: 41 [2019-10-03 02:30:41,432 INFO L226 Difference]: Without dead ends: 41 [2019-10-03 02:30:41,433 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:30:41,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-10-03 02:30:41,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2019-10-03 02:30:41,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-10-03 02:30:41,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2019-10-03 02:30:41,442 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 31 [2019-10-03 02:30:41,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:30:41,444 INFO L475 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2019-10-03 02:30:41,444 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:30:41,444 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2019-10-03 02:30:41,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-03 02:30:41,446 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:30:41,446 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:30:41,446 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:30:41,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:30:41,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1587558776, now seen corresponding path program 1 times [2019-10-03 02:30:41,447 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:30:41,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:41,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:30:41,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:41,452 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:30:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:30:41,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:30:41,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:30:41,639 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:30:41,639 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:30:41,640 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:30:41,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:30:41,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:30:41,641 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand 8 states. [2019-10-03 02:30:41,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:30:41,774 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2019-10-03 02:30:41,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:30:41,775 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2019-10-03 02:30:41,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:30:41,776 INFO L225 Difference]: With dead ends: 48 [2019-10-03 02:30:41,776 INFO L226 Difference]: Without dead ends: 41 [2019-10-03 02:30:41,777 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:30:41,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-10-03 02:30:41,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2019-10-03 02:30:41,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-10-03 02:30:41,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2019-10-03 02:30:41,783 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 31 [2019-10-03 02:30:41,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:30:41,784 INFO L475 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2019-10-03 02:30:41,784 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:30:41,784 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2019-10-03 02:30:41,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-03 02:30:41,785 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:30:41,786 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:30:41,786 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:30:41,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:30:41,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1489805475, now seen corresponding path program 1 times [2019-10-03 02:30:41,787 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:30:41,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:41,791 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:30:41,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:30:41,791 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:30:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:30:41,908 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-03 02:30:41,908 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:30:41,908 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:30:41,910 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 42 with the following transitions: [2019-10-03 02:30:41,919 INFO L207 CegarAbsIntRunner]: [21], [27], [29], [31], [33], [37], [38], [39], [45], [47], [48], [49], [50], [51], [53], [55], [64], [67], [80], [85], [87], [94], [96], [102], [106], [107], [111], [112], [115], [116], [117], [118], [121], [122], [123], [124], [125] [2019-10-03 02:30:41,983 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:30:41,984 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:30:42,070 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:30:42,072 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 32 variables. [2019-10-03 02:30:42,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:30:42,077 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:30:42,120 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-03 02:30:42,120 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:30:42,123 INFO L420 sIntCurrentIteration]: We unified 40 AI predicates to 40 [2019-10-03 02:30:42,123 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:30:42,124 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:30:42,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2019-10-03 02:30:42,125 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:30:42,125 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:30:42,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:30:42,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:30:42,126 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand 2 states. [2019-10-03 02:30:42,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:30:42,127 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-10-03 02:30:42,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:30:42,128 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 41 [2019-10-03 02:30:42,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:30:42,128 INFO L225 Difference]: With dead ends: 6 [2019-10-03 02:30:42,128 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:30:42,129 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:30:42,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:30:42,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:30:42,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:30:42,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:30:42,130 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2019-10-03 02:30:42,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:30:42,130 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:30:42,130 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:30:42,130 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:30:42,130 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:30:42,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:30:42 BoogieIcfgContainer [2019-10-03 02:30:42,137 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:30:42,140 INFO L168 Benchmark]: Toolchain (without parser) took 3126.91 ms. Allocated memory was 135.3 MB in the beginning and 226.0 MB in the end (delta: 90.7 MB). Free memory was 86.5 MB in the beginning and 140.6 MB in the end (delta: -54.1 MB). Peak memory consumption was 36.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:30:42,141 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 135.3 MB. Free memory was 106.6 MB in the beginning and 106.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:30:42,142 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.25 ms. Allocated memory was 135.3 MB in the beginning and 200.8 MB in the end (delta: 65.5 MB). Free memory was 86.1 MB in the beginning and 162.6 MB in the end (delta: -76.4 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:30:42,143 INFO L168 Benchmark]: Boogie Preprocessor took 73.95 ms. Allocated memory is still 200.8 MB. Free memory was 162.6 MB in the beginning and 159.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:30:42,144 INFO L168 Benchmark]: RCFGBuilder took 750.11 ms. Allocated memory is still 200.8 MB. Free memory was 159.5 MB in the beginning and 110.5 MB in the end (delta: 49.0 MB). Peak memory consumption was 49.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:30:42,145 INFO L168 Benchmark]: TraceAbstraction took 1523.20 ms. Allocated memory was 200.8 MB in the beginning and 226.0 MB in the end (delta: 25.2 MB). Free memory was 110.5 MB in the beginning and 140.6 MB in the end (delta: -30.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 02:30:42,149 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 135.3 MB. Free memory was 106.6 MB in the beginning and 106.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 774.25 ms. Allocated memory was 135.3 MB in the beginning and 200.8 MB in the end (delta: 65.5 MB). Free memory was 86.1 MB in the beginning and 162.6 MB in the end (delta: -76.4 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 73.95 ms. Allocated memory is still 200.8 MB. Free memory was 162.6 MB in the beginning and 159.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 750.11 ms. Allocated memory is still 200.8 MB. Free memory was 159.5 MB in the beginning and 110.5 MB in the end (delta: 49.0 MB). Peak memory consumption was 49.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1523.20 ms. Allocated memory was 200.8 MB in the beginning and 226.0 MB in the end (delta: 25.2 MB). Free memory was 110.5 MB in the beginning and 140.6 MB in the end (delta: -30.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 624]: 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, 56 locations, 1 error locations. SAFE Result, 1.4s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 137 SDtfs, 20 SDslu, 229 SDs, 0 SdLazy, 53 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred 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, 0.975 AbsIntWeakeningRatio, 1.75 AbsIntAvgWeakeningVarsNumRemoved, 0.15 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 6300 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 6/7 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...