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-properties/list_search-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:28:13,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:28:13,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:28:13,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:28:13,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:28:13,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:28:13,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:28:13,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:28:13,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:28:13,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:28:13,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:28:13,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:28:13,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:28:13,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:28:13,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:28:13,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:28:13,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:28:13,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:28:13,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:28:13,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:28:13,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:28:13,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:28:13,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:28:13,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:28:13,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:28:13,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:28:13,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:28:13,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:28:13,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:28:13,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:28:13,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:28:13,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:28:13,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:28:13,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:28:13,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:28:13,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:28:13,770 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:28:13,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:28:13,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:28:13,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:28:13,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:28:13,775 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 [2019-09-20 13:28:13,805 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:28:13,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:28:13,806 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:28:13,806 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:28:13,807 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:28:13,807 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:28:13,807 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:28:13,807 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:28:13,808 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:28:13,808 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:28:13,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:28:13,809 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:28:13,809 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:28:13,809 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:28:13,809 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:28:13,809 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:28:13,810 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:28:13,810 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:28:13,810 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:28:13,810 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:28:13,810 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:28:13,811 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:28:13,811 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:28:13,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:28:13,811 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:28:13,811 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:28:13,812 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:28:13,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:28:13,812 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:28:13,812 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:28:13,842 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:28:13,860 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:28:13,864 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:28:13,865 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:28:13,866 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:28:13,866 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list_search-2.i [2019-09-20 13:28:13,927 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cb2f1b0b/1b7f9b0552bf4e19ad801513d80a93f4/FLAG2402f35ae [2019-09-20 13:28:14,462 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:28:14,463 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-properties/list_search-2.i [2019-09-20 13:28:14,491 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cb2f1b0b/1b7f9b0552bf4e19ad801513d80a93f4/FLAG2402f35ae [2019-09-20 13:28:14,788 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cb2f1b0b/1b7f9b0552bf4e19ad801513d80a93f4 [2019-09-20 13:28:14,797 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:28:14,799 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:28:14,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:14,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:28:14,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:28:14,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:14" (1/1) ... [2019-09-20 13:28:14,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65a10a5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:14, skipping insertion in model container [2019-09-20 13:28:14,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:14" (1/1) ... [2019-09-20 13:28:14,817 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:28:14,868 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:28:15,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:15,519 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:28:15,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:15,726 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:28:15,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:15 WrapperNode [2019-09-20 13:28:15,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:15,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:28:15,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:28:15,729 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:28:15,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:15" (1/1) ... [2019-09-20 13:28:15,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:15" (1/1) ... [2019-09-20 13:28:15,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:15" (1/1) ... [2019-09-20 13:28:15,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:15" (1/1) ... [2019-09-20 13:28:15,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:15" (1/1) ... [2019-09-20 13:28:15,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:15" (1/1) ... [2019-09-20 13:28:15,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:15" (1/1) ... [2019-09-20 13:28:15,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:28:15,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:28:15,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:28:15,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:28:15,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:15" (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 [2019-09-20 13:28:15,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:28:15,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:28:15,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 13:28:15,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-20 13:28:15,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-20 13:28:15,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-09-20 13:28:15,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-09-20 13:28:15,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-09-20 13:28:15,878 INFO L138 BoogieDeclarations]: Found implementation of procedure search_list [2019-09-20 13:28:15,878 INFO L138 BoogieDeclarations]: Found implementation of procedure delete_list [2019-09-20 13:28:15,878 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_list [2019-09-20 13:28:15,879 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:28:15,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:28:15,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 13:28:15,879 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2019-09-20 13:28:15,879 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2019-09-20 13:28:15,880 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2019-09-20 13:28:15,880 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2019-09-20 13:28:15,880 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2019-09-20 13:28:15,880 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2019-09-20 13:28:15,880 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2019-09-20 13:28:15,881 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2019-09-20 13:28:15,881 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2019-09-20 13:28:15,881 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2019-09-20 13:28:15,881 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2019-09-20 13:28:15,881 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2019-09-20 13:28:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2019-09-20 13:28:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2019-09-20 13:28:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2019-09-20 13:28:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2019-09-20 13:28:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2019-09-20 13:28:15,882 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2019-09-20 13:28:15,883 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2019-09-20 13:28:15,883 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2019-09-20 13:28:15,883 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2019-09-20 13:28:15,883 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2019-09-20 13:28:15,883 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2019-09-20 13:28:15,884 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2019-09-20 13:28:15,884 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2019-09-20 13:28:15,884 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2019-09-20 13:28:15,884 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2019-09-20 13:28:15,884 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2019-09-20 13:28:15,884 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-09-20 13:28:15,885 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2019-09-20 13:28:15,885 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2019-09-20 13:28:15,885 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2019-09-20 13:28:15,885 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2019-09-20 13:28:15,885 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2019-09-20 13:28:15,885 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2019-09-20 13:28:15,886 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2019-09-20 13:28:15,886 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2019-09-20 13:28:15,886 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2019-09-20 13:28:15,886 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:28:15,886 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-09-20 13:28:15,886 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2019-09-20 13:28:15,887 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2019-09-20 13:28:15,887 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2019-09-20 13:28:15,887 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-09-20 13:28:15,887 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2019-09-20 13:28:15,887 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2019-09-20 13:28:15,888 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2019-09-20 13:28:15,888 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2019-09-20 13:28:15,888 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2019-09-20 13:28:15,888 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2019-09-20 13:28:15,888 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2019-09-20 13:28:15,889 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2019-09-20 13:28:15,889 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2019-09-20 13:28:15,889 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2019-09-20 13:28:15,889 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2019-09-20 13:28:15,889 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2019-09-20 13:28:15,890 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2019-09-20 13:28:15,890 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2019-09-20 13:28:15,890 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2019-09-20 13:28:15,890 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2019-09-20 13:28:15,890 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2019-09-20 13:28:15,890 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2019-09-20 13:28:15,891 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2019-09-20 13:28:15,891 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2019-09-20 13:28:15,891 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2019-09-20 13:28:15,891 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2019-09-20 13:28:15,891 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2019-09-20 13:28:15,892 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2019-09-20 13:28:15,892 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2019-09-20 13:28:15,892 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2019-09-20 13:28:15,892 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2019-09-20 13:28:15,892 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2019-09-20 13:28:15,893 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-20 13:28:15,893 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2019-09-20 13:28:15,893 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2019-09-20 13:28:15,893 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2019-09-20 13:28:15,893 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2019-09-20 13:28:15,893 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2019-09-20 13:28:15,894 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2019-09-20 13:28:15,894 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2019-09-20 13:28:15,894 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2019-09-20 13:28:15,894 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2019-09-20 13:28:15,894 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2019-09-20 13:28:15,895 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2019-09-20 13:28:15,895 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2019-09-20 13:28:15,895 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2019-09-20 13:28:15,895 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2019-09-20 13:28:15,895 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2019-09-20 13:28:15,895 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2019-09-20 13:28:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2019-09-20 13:28:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2019-09-20 13:28:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2019-09-20 13:28:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2019-09-20 13:28:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2019-09-20 13:28:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2019-09-20 13:28:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2019-09-20 13:28:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2019-09-20 13:28:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2019-09-20 13:28:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2019-09-20 13:28:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2019-09-20 13:28:15,898 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-20 13:28:15,898 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-20 13:28:15,898 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-20 13:28:15,898 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-20 13:28:15,898 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-20 13:28:15,898 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-20 13:28:15,899 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-20 13:28:15,899 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-20 13:28:15,899 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-20 13:28:15,899 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-20 13:28:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-20 13:28:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-20 13:28:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-20 13:28:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-20 13:28:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-20 13:28:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-20 13:28:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-20 13:28:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-20 13:28:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-09-20 13:28:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-09-20 13:28:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-09-20 13:28:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-20 13:28:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-20 13:28:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-20 13:28:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-20 13:28:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-20 13:28:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-20 13:28:15,903 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-20 13:28:15,903 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-20 13:28:15,903 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-20 13:28:15,903 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-20 13:28:15,903 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-20 13:28:15,904 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-20 13:28:15,904 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-20 13:28:15,904 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-20 13:28:15,904 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-20 13:28:15,904 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-20 13:28:15,904 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-20 13:28:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-20 13:28:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-20 13:28:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-20 13:28:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-20 13:28:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-20 13:28:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-20 13:28:15,906 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-20 13:28:15,906 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-20 13:28:15,906 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-20 13:28:15,906 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-20 13:28:15,906 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-20 13:28:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-20 13:28:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-20 13:28:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-20 13:28:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-20 13:28:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-20 13:28:15,907 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-20 13:28:15,908 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:28:15,908 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-20 13:28:15,908 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-20 13:28:15,908 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:28:15,908 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-20 13:28:15,908 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-20 13:28:15,909 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-20 13:28:15,909 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-20 13:28:15,909 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-20 13:28:15,909 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-20 13:28:15,909 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-20 13:28:15,909 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-20 13:28:15,910 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-20 13:28:15,910 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-20 13:28:15,910 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-20 13:28:15,910 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-20 13:28:15,910 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-20 13:28:15,910 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-20 13:28:15,911 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-20 13:28:15,911 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-20 13:28:15,911 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-20 13:28:15,911 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-20 13:28:15,911 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-20 13:28:15,911 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-20 13:28:15,912 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-20 13:28:15,912 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-20 13:28:15,912 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-20 13:28:15,912 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-20 13:28:15,912 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-20 13:28:15,912 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-20 13:28:15,913 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-20 13:28:15,913 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-20 13:28:15,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-20 13:28:15,913 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-20 13:28:15,913 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-20 13:28:15,913 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-20 13:28:15,914 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-20 13:28:15,914 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-20 13:28:15,914 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-20 13:28:15,914 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-20 13:28:15,914 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-20 13:28:15,914 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-20 13:28:15,915 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-20 13:28:15,915 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-20 13:28:15,915 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-20 13:28:15,915 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-20 13:28:15,915 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-20 13:28:15,915 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-20 13:28:15,916 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-20 13:28:15,916 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-20 13:28:15,916 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-20 13:28:15,916 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-20 13:28:15,916 INFO L130 BoogieDeclarations]: Found specification of procedure search_list [2019-09-20 13:28:15,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:28:15,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:28:15,917 INFO L130 BoogieDeclarations]: Found specification of procedure delete_list [2019-09-20 13:28:15,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:28:15,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:28:15,918 INFO L130 BoogieDeclarations]: Found specification of procedure insert_list [2019-09-20 13:28:15,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:28:15,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:28:15,918 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:28:15,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:28:15,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:28:16,742 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:28:16,742 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-20 13:28:16,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:16 BoogieIcfgContainer [2019-09-20 13:28:16,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:28:16,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:28:16,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:28:16,749 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:28:16,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:28:14" (1/3) ... [2019-09-20 13:28:16,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148d9f27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:28:16, skipping insertion in model container [2019-09-20 13:28:16,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:15" (2/3) ... [2019-09-20 13:28:16,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148d9f27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:28:16, skipping insertion in model container [2019-09-20 13:28:16,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:16" (3/3) ... [2019-09-20 13:28:16,754 INFO L109 eAbstractionObserver]: Analyzing ICFG list_search-2.i [2019-09-20 13:28:16,765 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:28:16,773 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:28:16,788 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:28:16,812 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:28:16,813 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:28:16,813 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:28:16,813 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:28:16,813 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:28:16,813 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:28:16,813 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:28:16,813 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:28:16,827 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2019-09-20 13:28:16,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:28:16,839 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:16,840 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2019-09-20 13:28:16,843 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:16,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:16,848 INFO L82 PathProgramCache]: Analyzing trace with hash 694957185, now seen corresponding path program 1 times [2019-09-20 13:28:16,850 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:16,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:16,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:16,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:16,919 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:17,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:17,185 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-20 13:28:17,196 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:17,197 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:28:17,197 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:17,204 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:28:17,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:28:17,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:28:17,223 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2019-09-20 13:28:17,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:17,246 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2019-09-20 13:28:17,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:28:17,247 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:28:17,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:17,257 INFO L225 Difference]: With dead ends: 52 [2019-09-20 13:28:17,257 INFO L226 Difference]: Without dead ends: 34 [2019-09-20 13:28:17,259 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 [2019-09-20 13:28:17,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-09-20 13:28:17,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-09-20 13:28:17,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-09-20 13:28:17,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2019-09-20 13:28:17,303 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 46 [2019-09-20 13:28:17,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:17,305 INFO L475 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2019-09-20 13:28:17,306 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:28:17,306 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2019-09-20 13:28:17,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-09-20 13:28:17,308 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:17,309 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2019-09-20 13:28:17,309 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:17,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:17,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1251884926, now seen corresponding path program 1 times [2019-09-20 13:28:17,310 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:17,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:17,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:17,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:17,316 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:17,487 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-09-20 13:28:17,487 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:17,487 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:28:17,487 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:17,489 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:28:17,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:28:17,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:28:17,490 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand 5 states. [2019-09-20 13:28:17,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:17,598 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2019-09-20 13:28:17,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:28:17,599 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2019-09-20 13:28:17,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:17,601 INFO L225 Difference]: With dead ends: 38 [2019-09-20 13:28:17,601 INFO L226 Difference]: Without dead ends: 38 [2019-09-20 13:28:17,602 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:28:17,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-09-20 13:28:17,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2019-09-20 13:28:17,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-09-20 13:28:17,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2019-09-20 13:28:17,610 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 48 [2019-09-20 13:28:17,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:17,610 INFO L475 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2019-09-20 13:28:17,610 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:28:17,610 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2019-09-20 13:28:17,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-09-20 13:28:17,612 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:17,614 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2019-09-20 13:28:17,615 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:17,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:17,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1415498856, now seen corresponding path program 1 times [2019-09-20 13:28:17,615 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:17,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:17,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:17,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:17,627 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:17,916 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-09-20 13:28:17,916 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:17,916 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-20 13:28:17,916 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:17,917 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-20 13:28:17,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-20 13:28:17,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:28:17,918 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand 10 states. [2019-09-20 13:28:18,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:18,384 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2019-09-20 13:28:18,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-20 13:28:18,385 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 49 [2019-09-20 13:28:18,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:18,393 INFO L225 Difference]: With dead ends: 49 [2019-09-20 13:28:18,393 INFO L226 Difference]: Without dead ends: 46 [2019-09-20 13:28:18,394 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2019-09-20 13:28:18,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-09-20 13:28:18,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. [2019-09-20 13:28:18,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-09-20 13:28:18,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2019-09-20 13:28:18,412 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 49 [2019-09-20 13:28:18,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:18,415 INFO L475 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2019-09-20 13:28:18,415 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-20 13:28:18,415 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2019-09-20 13:28:18,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-09-20 13:28:18,416 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:18,417 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2019-09-20 13:28:18,417 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:18,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:18,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1022471846, now seen corresponding path program 1 times [2019-09-20 13:28:18,418 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:18,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:18,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:18,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:18,424 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:18,518 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-09-20 13:28:18,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:18,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:28:18,519 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:18,519 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:28:18,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:28:18,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:28:18,520 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand 7 states. [2019-09-20 13:28:18,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:18,697 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2019-09-20 13:28:18,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:28:18,697 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2019-09-20 13:28:18,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:18,699 INFO L225 Difference]: With dead ends: 41 [2019-09-20 13:28:18,699 INFO L226 Difference]: Without dead ends: 41 [2019-09-20 13:28:18,700 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:28:18,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-09-20 13:28:18,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2019-09-20 13:28:18,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-09-20 13:28:18,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2019-09-20 13:28:18,715 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 49 [2019-09-20 13:28:18,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:18,715 INFO L475 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2019-09-20 13:28:18,715 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:28:18,716 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2019-09-20 13:28:18,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:28:18,717 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:18,717 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2019-09-20 13:28:18,717 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:18,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:18,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1923734059, now seen corresponding path program 1 times [2019-09-20 13:28:18,718 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:18,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:18,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:18,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:18,723 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:19,064 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-20 13:28:19,065 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:28:19,065 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:28:19,067 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 53 with the following transitions: [2019-09-20 13:28:19,069 INFO L207 CegarAbsIntRunner]: [2], [3], [10], [15], [18], [24], [26], [30], [31], [34], [37], [39], [45], [47], [49], [51], [53], [60], [62], [67], [108], [113], [115], [116], [120], [121], [122], [123], [124], [125], [126], [127], [128], [129], [130], [134], [135], [136] [2019-09-20 13:28:19,119 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:28:19,120 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:28:19,218 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:28:19,220 INFO L272 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Performed 43 root evaluator evaluations with a maximum evaluation depth of 0. Performed 43 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 34 variables. [2019-09-20 13:28:19,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:19,225 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:28:19,263 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: There is no value of variable insert_list_#in~l.base. at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalState.getValue(NonrelationalState.java:147) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.lambda$0(SingletonVariableExpressionEvaluator.java:83) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.util.typeutils.TypeUtils.applyVariableFunctionPerType(TypeUtils.java:114) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.util.typeutils.TypeUtils.applyVariableFunction(TypeUtils.java:103) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.evaluate(SingletonVariableExpressionEvaluator.java:89) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.SingletonVariableExpressionEvaluator.evaluate(SingletonVariableExpressionEvaluator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.Evaluator.evaluate(Evaluator.java:96) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalEvaluator.evaluate(NonrelationalEvaluator.java:81) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleSingleAssignment(NonrelationalStatementProcessor.java:245) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleMultiAssignment(NonrelationalStatementProcessor.java:202) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleAssignment(NonrelationalStatementProcessor.java:191) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:153) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalTransitionWithValidState(AbsIntHoareTripleChecker.java:353) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalAbsInt(AbsIntHoareTripleChecker.java:250) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternal(AbsIntHoareTripleChecker.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.weakener.AbsIntPredicateInterpolantSequenceWeakener.determineInductivity(AbsIntPredicateInterpolantSequenceWeakener.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.weakener.AbsIntPredicateInterpolantSequenceWeakener.refinePreState(AbsIntPredicateInterpolantSequenceWeakener.java:111) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.weakener.AbsIntPredicateInterpolantSequenceWeakener.refinePreState(AbsIntPredicateInterpolantSequenceWeakener.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.weakener.InterpolantSequenceWeakener.generateResult(InterpolantSequenceWeakener.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.weakener.InterpolantSequenceWeakener.(InterpolantSequenceWeakener.java:111) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.weakener.AbsIntPredicateInterpolantSequenceWeakener.(AbsIntPredicateInterpolantSequenceWeakener.java:103) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner$AbsIntCurrentIteration.weakenPredicates(CegarAbsIntRunner.java:447) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner$AbsIntCurrentIteration.createInterpolantGenerator(CegarAbsIntRunner.java:412) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner$AbsIntCurrentIteration.getInterpolantGenerator(CegarAbsIntRunner.java:389) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.getInterpolantGenerator(CegarAbsIntRunner.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.constructInterpolantGenerator(BaseTaipanRefinementStrategy.java:384) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getInterpolantGenerator(BaseTaipanRefinementStrategy.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:380) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.handleInfeasibleCase(BaseRefinementStrategy.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:206) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:461) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:371) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-09-20 13:28:19,269 INFO L168 Benchmark]: Toolchain (without parser) took 4469.34 ms. Allocated memory was 136.3 MB in the beginning and 262.7 MB in the end (delta: 126.4 MB). Free memory was 86.3 MB in the beginning and 138.0 MB in the end (delta: -51.7 MB). Peak memory consumption was 74.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:19,270 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 136.3 MB. Free memory was 106.3 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:28:19,271 INFO L168 Benchmark]: CACSL2BoogieTranslator took 927.30 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 86.1 MB in the beginning and 142.1 MB in the end (delta: -56.0 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:19,272 INFO L168 Benchmark]: Boogie Preprocessor took 83.40 ms. Allocated memory is still 200.8 MB. Free memory was 142.1 MB in the beginning and 138.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:19,273 INFO L168 Benchmark]: RCFGBuilder took 932.01 ms. Allocated memory was 200.8 MB in the beginning and 224.9 MB in the end (delta: 24.1 MB). Free memory was 138.4 MB in the beginning and 185.6 MB in the end (delta: -47.2 MB). Peak memory consumption was 67.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:19,274 INFO L168 Benchmark]: TraceAbstraction took 2520.91 ms. Allocated memory was 224.9 MB in the beginning and 262.7 MB in the end (delta: 37.7 MB). Free memory was 185.6 MB in the beginning and 138.0 MB in the end (delta: 47.6 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:19,279 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 136.3 MB. Free memory was 106.3 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 927.30 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 86.1 MB in the beginning and 142.1 MB in the end (delta: -56.0 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 83.40 ms. Allocated memory is still 200.8 MB. Free memory was 142.1 MB in the beginning and 138.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 932.01 ms. Allocated memory was 200.8 MB in the beginning and 224.9 MB in the end (delta: 24.1 MB). Free memory was 138.4 MB in the beginning and 185.6 MB in the end (delta: -47.2 MB). Peak memory consumption was 67.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2520.91 ms. Allocated memory was 224.9 MB in the beginning and 262.7 MB in the end (delta: 37.7 MB). Free memory was 185.6 MB in the beginning and 138.0 MB in the end (delta: 47.6 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: There is no value of variable insert_list_#in~l.base. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: There is no value of variable insert_list_#in~l.base.: de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalState.getValue(NonrelationalState.java:147) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...