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/ldv-regression/rule60_list.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:28:31,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:28:31,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:28:31,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:28:31,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:28:31,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:28:31,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:28:31,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:28:31,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:28:31,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:28:31,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:28:31,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:28:31,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:28:31,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:28:31,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:28:31,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:28:31,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:28:31,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:28:31,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:28:31,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:28:31,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:28:31,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:28:31,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:28:31,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:28:31,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:28:31,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:28:31,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:28:31,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:28:31,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:28:31,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:28:31,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:28:31,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:28:31,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:28:31,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:28:31,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:28:31,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:28:31,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:28:31,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:28:31,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:28:31,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:28:31,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:28:31,758 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 13:28:31,786 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:28:31,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:28:31,788 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:28:31,788 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:28:31,789 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:28:31,789 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:28:31,790 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:28:31,790 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:28:31,790 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:28:31,790 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:28:31,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:28:31,793 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:28:31,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:28:31,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:28:31,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:28:31,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:28:31,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:28:31,794 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:28:31,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:28:31,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:28:31,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:28:31,795 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:28:31,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:28:31,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:28:31,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:28:31,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:28:31,797 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:28:31,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:28:31,797 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:28:31,797 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:28:31,852 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:28:31,870 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:28:31,876 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:28:31,878 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:28:31,878 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:28:31,879 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list.i [2019-09-20 13:28:31,941 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b7a32217/efac76f7102a478a877f7bf72494bf0d/FLAG5ef9ac766 [2019-09-20 13:28:32,521 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:28:32,522 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule60_list.i [2019-09-20 13:28:32,539 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b7a32217/efac76f7102a478a877f7bf72494bf0d/FLAG5ef9ac766 [2019-09-20 13:28:32,782 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b7a32217/efac76f7102a478a877f7bf72494bf0d [2019-09-20 13:28:32,790 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:28:32,792 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:28:32,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:32,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:28:32,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:28:32,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:32" (1/1) ... [2019-09-20 13:28:32,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39abf77a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:32, skipping insertion in model container [2019-09-20 13:28:32,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:32" (1/1) ... [2019-09-20 13:28:32,809 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:28:32,856 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:28:33,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:33,323 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:28:33,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:28:33,465 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:28:33,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:33 WrapperNode [2019-09-20 13:28:33,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:28:33,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:28:33,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:28:33,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:28:33,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:33" (1/1) ... [2019-09-20 13:28:33,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:33" (1/1) ... [2019-09-20 13:28:33,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:33" (1/1) ... [2019-09-20 13:28:33,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:33" (1/1) ... [2019-09-20 13:28:33,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:33" (1/1) ... [2019-09-20 13:28:33,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:33" (1/1) ... [2019-09-20 13:28:33,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:33" (1/1) ... [2019-09-20 13:28:33,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:28:33,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:28:33,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:28:33,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:28:33,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:33" (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 13:28:33,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:28:33,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:28:33,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2019-09-20 13:28:33,641 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-09-20 13:28:33,641 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-09-20 13:28:33,641 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:28:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:28:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2019-09-20 13:28:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2019-09-20 13:28:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2019-09-20 13:28:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2019-09-20 13:28:33,643 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2019-09-20 13:28:33,643 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2019-09-20 13:28:33,644 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2019-09-20 13:28:33,644 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2019-09-20 13:28:33,645 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2019-09-20 13:28:33,645 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2019-09-20 13:28:33,645 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2019-09-20 13:28:33,645 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2019-09-20 13:28:33,646 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2019-09-20 13:28:33,646 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2019-09-20 13:28:33,646 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2019-09-20 13:28:33,646 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2019-09-20 13:28:33,646 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2019-09-20 13:28:33,647 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2019-09-20 13:28:33,647 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2019-09-20 13:28:33,647 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2019-09-20 13:28:33,647 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2019-09-20 13:28:33,648 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2019-09-20 13:28:33,648 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2019-09-20 13:28:33,648 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2019-09-20 13:28:33,648 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2019-09-20 13:28:33,648 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2019-09-20 13:28:33,648 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2019-09-20 13:28:33,649 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2019-09-20 13:28:33,649 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2019-09-20 13:28:33,649 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-09-20 13:28:33,649 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2019-09-20 13:28:33,649 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2019-09-20 13:28:33,650 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2019-09-20 13:28:33,650 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2019-09-20 13:28:33,650 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2019-09-20 13:28:33,650 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2019-09-20 13:28:33,650 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2019-09-20 13:28:33,650 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2019-09-20 13:28:33,651 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2019-09-20 13:28:33,651 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:28:33,651 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-09-20 13:28:33,651 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2019-09-20 13:28:33,651 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2019-09-20 13:28:33,651 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2019-09-20 13:28:33,651 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-09-20 13:28:33,652 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2019-09-20 13:28:33,652 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2019-09-20 13:28:33,652 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2019-09-20 13:28:33,652 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2019-09-20 13:28:33,652 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2019-09-20 13:28:33,652 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2019-09-20 13:28:33,652 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2019-09-20 13:28:33,653 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2019-09-20 13:28:33,653 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2019-09-20 13:28:33,653 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2019-09-20 13:28:33,653 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2019-09-20 13:28:33,653 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2019-09-20 13:28:33,653 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2019-09-20 13:28:33,654 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2019-09-20 13:28:33,654 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2019-09-20 13:28:33,654 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2019-09-20 13:28:33,654 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2019-09-20 13:28:33,655 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2019-09-20 13:28:33,655 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2019-09-20 13:28:33,655 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2019-09-20 13:28:33,655 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2019-09-20 13:28:33,656 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2019-09-20 13:28:33,656 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2019-09-20 13:28:33,656 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2019-09-20 13:28:33,656 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2019-09-20 13:28:33,657 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2019-09-20 13:28:33,657 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2019-09-20 13:28:33,657 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2019-09-20 13:28:33,657 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2019-09-20 13:28:33,658 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-20 13:28:33,658 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2019-09-20 13:28:33,658 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2019-09-20 13:28:33,658 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2019-09-20 13:28:33,659 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2019-09-20 13:28:33,659 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2019-09-20 13:28:33,660 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2019-09-20 13:28:33,660 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2019-09-20 13:28:33,660 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2019-09-20 13:28:33,660 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2019-09-20 13:28:33,660 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2019-09-20 13:28:33,660 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2019-09-20 13:28:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2019-09-20 13:28:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2019-09-20 13:28:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2019-09-20 13:28:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2019-09-20 13:28:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2019-09-20 13:28:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2019-09-20 13:28:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2019-09-20 13:28:33,662 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2019-09-20 13:28:33,662 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2019-09-20 13:28:33,662 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2019-09-20 13:28:33,662 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2019-09-20 13:28:33,662 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2019-09-20 13:28:33,662 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2019-09-20 13:28:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2019-09-20 13:28:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2019-09-20 13:28:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2019-09-20 13:28:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:28:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-20 13:28:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-20 13:28:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:28:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-20 13:28:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2019-09-20 13:28:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-20 13:28:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2019-09-20 13:28:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2019-09-20 13:28:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2019-09-20 13:28:33,666 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2019-09-20 13:28:33,666 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2019-09-20 13:28:33,666 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2019-09-20 13:28:33,666 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2019-09-20 13:28:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2019-09-20 13:28:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2019-09-20 13:28:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2019-09-20 13:28:33,668 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2019-09-20 13:28:33,668 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-09-20 13:28:33,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:28:33,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:28:33,669 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-09-20 13:28:33,669 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:28:33,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:28:33,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:28:33,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:28:33,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 13:28:33,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:28:33,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:28:33,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:28:33,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:28:33,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:28:34,181 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:28:34,181 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 13:28:34,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:34 BoogieIcfgContainer [2019-09-20 13:28:34,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:28:34,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:28:34,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:28:34,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:28:34,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:28:32" (1/3) ... [2019-09-20 13:28:34,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7798a17b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:28:34, skipping insertion in model container [2019-09-20 13:28:34,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:33" (2/3) ... [2019-09-20 13:28:34,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7798a17b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:28:34, skipping insertion in model container [2019-09-20 13:28:34,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:34" (3/3) ... [2019-09-20 13:28:34,191 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list.i [2019-09-20 13:28:34,202 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:28:34,210 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:28:34,227 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:28:34,251 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:28:34,252 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:28:34,252 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:28:34,252 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:28:34,252 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:28:34,252 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:28:34,252 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:28:34,253 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:28:34,268 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-09-20 13:28:34,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-20 13:28:34,279 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:34,280 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:34,282 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:34,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:34,288 INFO L82 PathProgramCache]: Analyzing trace with hash 2070742689, now seen corresponding path program 1 times [2019-09-20 13:28:34,290 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:34,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:34,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:34,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:34,357 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:34,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:28:34,729 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:34,729 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:28:34,729 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:34,735 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:28:34,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:28:34,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:28:34,754 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 7 states. [2019-09-20 13:28:34,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:34,959 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2019-09-20 13:28:34,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:28:34,961 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2019-09-20 13:28:34,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:34,971 INFO L225 Difference]: With dead ends: 32 [2019-09-20 13:28:34,971 INFO L226 Difference]: Without dead ends: 26 [2019-09-20 13:28:34,977 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:28:34,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-09-20 13:28:35,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-09-20 13:28:35,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-09-20 13:28:35,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2019-09-20 13:28:35,019 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 12 [2019-09-20 13:28:35,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:35,020 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2019-09-20 13:28:35,020 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:28:35,020 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2019-09-20 13:28:35,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-20 13:28:35,021 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:35,022 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:35,022 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:35,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:35,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1302580324, now seen corresponding path program 1 times [2019-09-20 13:28:35,023 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:35,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:35,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:35,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:35,031 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:35,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:28:35,240 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:35,240 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-20 13:28:35,240 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:35,242 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-20 13:28:35,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-20 13:28:35,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:28:35,243 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 9 states. [2019-09-20 13:28:35,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:35,444 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2019-09-20 13:28:35,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-20 13:28:35,444 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2019-09-20 13:28:35,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:35,446 INFO L225 Difference]: With dead ends: 25 [2019-09-20 13:28:35,446 INFO L226 Difference]: Without dead ends: 25 [2019-09-20 13:28:35,447 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2019-09-20 13:28:35,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-09-20 13:28:35,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-09-20 13:28:35,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-09-20 13:28:35,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2019-09-20 13:28:35,456 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 18 [2019-09-20 13:28:35,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:35,456 INFO L475 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2019-09-20 13:28:35,456 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-20 13:28:35,457 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2019-09-20 13:28:35,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-09-20 13:28:35,458 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:28:35,458 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:28:35,459 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:28:35,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:28:35,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1070618069, now seen corresponding path program 1 times [2019-09-20 13:28:35,460 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:28:35,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:35,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:28:35,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:28:35,470 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:28:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:28:35,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:28:35,733 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:28:35,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-20 13:28:35,733 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:28:35,734 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-20 13:28:35,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-20 13:28:35,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:28:35,734 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 9 states. [2019-09-20 13:28:35,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:28:35,878 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-09-20 13:28:35,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-20 13:28:35,879 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2019-09-20 13:28:35,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:28:35,879 INFO L225 Difference]: With dead ends: 22 [2019-09-20 13:28:35,879 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:28:35,880 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2019-09-20 13:28:35,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:28:35,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:28:35,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:28:35,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:28:35,881 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2019-09-20 13:28:35,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:28:35,881 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:28:35,881 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-20 13:28:35,881 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:28:35,882 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:28:35,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:28:35 BoogieIcfgContainer [2019-09-20 13:28:35,887 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:28:35,890 INFO L168 Benchmark]: Toolchain (without parser) took 3096.70 ms. Allocated memory was 132.1 MB in the beginning and 220.7 MB in the end (delta: 88.6 MB). Free memory was 86.3 MB in the beginning and 102.5 MB in the end (delta: -16.3 MB). Peak memory consumption was 72.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:35,890 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 132.1 MB. Free memory is still 105.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:28:35,891 INFO L168 Benchmark]: CACSL2BoogieTranslator took 674.38 ms. Allocated memory was 132.1 MB in the beginning and 198.2 MB in the end (delta: 66.1 MB). Free memory was 85.8 MB in the beginning and 161.0 MB in the end (delta: -75.1 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:35,892 INFO L168 Benchmark]: Boogie Preprocessor took 100.05 ms. Allocated memory is still 198.2 MB. Free memory was 161.0 MB in the beginning and 158.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:35,893 INFO L168 Benchmark]: RCFGBuilder took 615.45 ms. Allocated memory is still 198.2 MB. Free memory was 157.3 MB in the beginning and 114.7 MB in the end (delta: 42.6 MB). Peak memory consumption was 42.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:35,894 INFO L168 Benchmark]: TraceAbstraction took 1702.43 ms. Allocated memory was 198.2 MB in the beginning and 220.7 MB in the end (delta: 22.5 MB). Free memory was 114.7 MB in the beginning and 102.5 MB in the end (delta: 12.2 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:28:35,898 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 132.1 MB. Free memory is still 105.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 674.38 ms. Allocated memory was 132.1 MB in the beginning and 198.2 MB in the end (delta: 66.1 MB). Free memory was 85.8 MB in the beginning and 161.0 MB in the end (delta: -75.1 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.05 ms. Allocated memory is still 198.2 MB. Free memory was 161.0 MB in the beginning and 158.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 615.45 ms. Allocated memory is still 198.2 MB. Free memory was 157.3 MB in the beginning and 114.7 MB in the end (delta: 42.6 MB). Peak memory consumption was 42.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1702.43 ms. Allocated memory was 198.2 MB in the beginning and 220.7 MB in the end (delta: 22.5 MB). Free memory was 114.7 MB in the beginning and 102.5 MB in the end (delta: 12.2 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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 6 procedures, 31 locations, 1 error locations. SAFE Result, 1.6s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 52 SDtfs, 64 SDslu, 167 SDs, 0 SdLazy, 152 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 6263 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...