/usr/bin/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-regression/rule60_list.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 03:50:03,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 03:50:03,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 03:50:03,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 03:50:03,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 03:50:03,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 03:50:03,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 03:50:03,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 03:50:03,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 03:50:03,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 03:50:03,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 03:50:03,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 03:50:03,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 03:50:03,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 03:50:03,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 03:50:03,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 03:50:03,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 03:50:03,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 03:50:03,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 03:50:03,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 03:50:03,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 03:50:03,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 03:50:03,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 03:50:03,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 03:50:03,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 03:50:03,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 03:50:03,434 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 03:50:03,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 03:50:03,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 03:50:03,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 03:50:03,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 03:50:03,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 03:50:03,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 03:50:03,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 03:50:03,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 03:50:03,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 03:50:03,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 03:50:03,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 03:50:03,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 03:50:03,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 03:50:03,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 03:50:03,455 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 03:50:03,477 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 03:50:03,478 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 03:50:03,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 03:50:03,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 03:50:03,480 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 03:50:03,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 03:50:03,481 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 03:50:03,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 03:50:03,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 03:50:03,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 03:50:03,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 03:50:03,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 03:50:03,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 03:50:03,483 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 03:50:03,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 03:50:03,484 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 03:50:03,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 03:50:03,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 03:50:03,484 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 03:50:03,484 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 03:50:03,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 03:50:03,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 03:50:03,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 03:50:03,485 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 03:50:03,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 03:50:03,486 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 03:50:03,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 03:50:03,486 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 03:50:03,486 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 03:50:03,775 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 03:50:03,788 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 03:50:03,792 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 03:50:03,793 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 03:50:03,794 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 03:50:03,794 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list.i [2019-11-07 03:50:03,855 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8705b075/527b256f230b438092b16d3f2113709b/FLAG06a1c25f3 [2019-11-07 03:50:04,448 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 03:50:04,449 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule60_list.i [2019-11-07 03:50:04,465 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8705b075/527b256f230b438092b16d3f2113709b/FLAG06a1c25f3 [2019-11-07 03:50:04,690 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8705b075/527b256f230b438092b16d3f2113709b [2019-11-07 03:50:04,699 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 03:50:04,700 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 03:50:04,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 03:50:04,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 03:50:04,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 03:50:04,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:50:04" (1/1) ... [2019-11-07 03:50:04,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ab29f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:04, skipping insertion in model container [2019-11-07 03:50:04,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:50:04" (1/1) ... [2019-11-07 03:50:04,716 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 03:50:04,767 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 03:50:05,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:50:05,218 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 03:50:05,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:50:05,338 INFO L192 MainTranslator]: Completed translation [2019-11-07 03:50:05,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:05 WrapperNode [2019-11-07 03:50:05,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 03:50:05,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 03:50:05,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 03:50:05,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 03:50:05,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:05" (1/1) ... [2019-11-07 03:50:05,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:05" (1/1) ... [2019-11-07 03:50:05,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:05" (1/1) ... [2019-11-07 03:50:05,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:05" (1/1) ... [2019-11-07 03:50:05,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:05" (1/1) ... [2019-11-07 03:50:05,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:05" (1/1) ... [2019-11-07 03:50:05,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:05" (1/1) ... [2019-11-07 03:50:05,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 03:50:05,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 03:50:05,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 03:50:05,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 03:50:05,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:05" (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 [2019-11-07 03:50:05,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 03:50:05,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 03:50:05,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2019-11-07 03:50:05,539 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-11-07 03:50:05,540 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-11-07 03:50:05,540 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 03:50:05,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 03:50:05,541 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2019-11-07 03:50:05,541 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2019-11-07 03:50:05,542 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2019-11-07 03:50:05,542 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2019-11-07 03:50:05,544 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2019-11-07 03:50:05,544 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2019-11-07 03:50:05,544 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2019-11-07 03:50:05,544 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2019-11-07 03:50:05,546 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2019-11-07 03:50:05,546 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2019-11-07 03:50:05,547 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2019-11-07 03:50:05,547 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2019-11-07 03:50:05,547 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2019-11-07 03:50:05,547 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2019-11-07 03:50:05,547 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2019-11-07 03:50:05,547 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2019-11-07 03:50:05,548 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2019-11-07 03:50:05,548 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2019-11-07 03:50:05,548 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2019-11-07 03:50:05,549 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2019-11-07 03:50:05,549 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2019-11-07 03:50:05,549 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2019-11-07 03:50:05,549 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2019-11-07 03:50:05,550 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2019-11-07 03:50:05,550 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2019-11-07 03:50:05,550 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2019-11-07 03:50:05,550 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2019-11-07 03:50:05,550 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2019-11-07 03:50:05,551 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2019-11-07 03:50:05,551 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-11-07 03:50:05,551 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2019-11-07 03:50:05,551 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2019-11-07 03:50:05,551 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2019-11-07 03:50:05,551 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2019-11-07 03:50:05,551 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2019-11-07 03:50:05,552 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2019-11-07 03:50:05,552 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2019-11-07 03:50:05,552 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2019-11-07 03:50:05,552 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2019-11-07 03:50:05,552 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 03:50:05,552 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-11-07 03:50:05,552 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2019-11-07 03:50:05,552 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2019-11-07 03:50:05,553 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2019-11-07 03:50:05,553 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-11-07 03:50:05,553 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2019-11-07 03:50:05,553 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2019-11-07 03:50:05,553 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2019-11-07 03:50:05,553 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2019-11-07 03:50:05,553 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2019-11-07 03:50:05,554 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2019-11-07 03:50:05,554 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2019-11-07 03:50:05,554 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2019-11-07 03:50:05,555 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2019-11-07 03:50:05,555 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2019-11-07 03:50:05,555 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2019-11-07 03:50:05,555 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2019-11-07 03:50:05,555 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2019-11-07 03:50:05,555 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2019-11-07 03:50:05,555 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2019-11-07 03:50:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2019-11-07 03:50:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2019-11-07 03:50:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2019-11-07 03:50:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2019-11-07 03:50:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2019-11-07 03:50:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2019-11-07 03:50:05,557 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2019-11-07 03:50:05,557 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2019-11-07 03:50:05,557 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2019-11-07 03:50:05,558 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2019-11-07 03:50:05,558 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2019-11-07 03:50:05,558 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2019-11-07 03:50:05,558 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2019-11-07 03:50:05,559 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2019-11-07 03:50:05,559 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 03:50:05,560 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2019-11-07 03:50:05,560 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2019-11-07 03:50:05,560 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2019-11-07 03:50:05,560 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2019-11-07 03:50:05,560 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2019-11-07 03:50:05,561 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2019-11-07 03:50:05,561 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2019-11-07 03:50:05,561 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2019-11-07 03:50:05,562 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2019-11-07 03:50:05,562 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2019-11-07 03:50:05,562 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2019-11-07 03:50:05,562 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2019-11-07 03:50:05,562 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2019-11-07 03:50:05,562 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2019-11-07 03:50:05,562 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2019-11-07 03:50:05,563 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2019-11-07 03:50:05,563 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2019-11-07 03:50:05,563 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2019-11-07 03:50:05,563 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2019-11-07 03:50:05,563 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2019-11-07 03:50:05,563 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2019-11-07 03:50:05,563 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2019-11-07 03:50:05,563 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2019-11-07 03:50:05,564 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2019-11-07 03:50:05,564 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2019-11-07 03:50:05,564 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2019-11-07 03:50:05,564 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2019-11-07 03:50:05,564 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 03:50:05,564 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 03:50:05,565 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-07 03:50:05,565 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 03:50:05,565 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-07 03:50:05,565 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2019-11-07 03:50:05,565 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-07 03:50:05,565 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2019-11-07 03:50:05,565 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2019-11-07 03:50:05,566 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2019-11-07 03:50:05,567 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2019-11-07 03:50:05,567 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2019-11-07 03:50:05,568 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2019-11-07 03:50:05,568 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2019-11-07 03:50:05,568 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2019-11-07 03:50:05,569 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2019-11-07 03:50:05,569 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2019-11-07 03:50:05,570 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2019-11-07 03:50:05,570 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-11-07 03:50:05,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 03:50:05,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 03:50:05,570 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-11-07 03:50:05,571 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 03:50:05,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 03:50:05,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 03:50:05,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 03:50:05,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-07 03:50:05,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 03:50:05,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 03:50:05,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 03:50:05,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 03:50:05,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 03:50:06,156 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 03:50:06,156 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-07 03:50:06,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:50:06 BoogieIcfgContainer [2019-11-07 03:50:06,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 03:50:06,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 03:50:06,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 03:50:06,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 03:50:06,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:50:04" (1/3) ... [2019-11-07 03:50:06,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@724dd5ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:50:06, skipping insertion in model container [2019-11-07 03:50:06,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:05" (2/3) ... [2019-11-07 03:50:06,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@724dd5ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:50:06, skipping insertion in model container [2019-11-07 03:50:06,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:50:06" (3/3) ... [2019-11-07 03:50:06,166 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list.i [2019-11-07 03:50:06,176 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 03:50:06,184 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 03:50:06,196 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 03:50:06,222 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 03:50:06,222 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 03:50:06,222 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 03:50:06,222 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 03:50:06,222 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 03:50:06,223 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 03:50:06,223 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 03:50:06,223 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 03:50:06,242 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-07 03:50:06,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-07 03:50:06,248 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:50:06,249 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:50:06,252 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:50:06,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:50:06,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1144476146, now seen corresponding path program 1 times [2019-11-07 03:50:06,268 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:50:06,269 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201365648] [2019-11-07 03:50:06,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:50:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:50:06,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 03:50:06,683 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201365648] [2019-11-07 03:50:06,685 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:50:06,685 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 03:50:06,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935639594] [2019-11-07 03:50:06,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 03:50:06,693 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:50:06,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 03:50:06,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-07 03:50:06,707 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 7 states. [2019-11-07 03:50:06,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:50:06,941 INFO L93 Difference]: Finished difference Result 47 states and 58 transitions. [2019-11-07 03:50:06,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 03:50:06,944 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2019-11-07 03:50:06,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:50:06,955 INFO L225 Difference]: With dead ends: 47 [2019-11-07 03:50:06,955 INFO L226 Difference]: Without dead ends: 23 [2019-11-07 03:50:06,962 INFO L630 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 [2019-11-07 03:50:06,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-07 03:50:07,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-07 03:50:07,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-07 03:50:07,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2019-11-07 03:50:07,021 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 11 [2019-11-07 03:50:07,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:50:07,021 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2019-11-07 03:50:07,021 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 03:50:07,021 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2019-11-07 03:50:07,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-07 03:50:07,023 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:50:07,023 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:50:07,023 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:50:07,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:50:07,024 INFO L82 PathProgramCache]: Analyzing trace with hash 784292294, now seen corresponding path program 1 times [2019-11-07 03:50:07,024 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:50:07,024 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146993363] [2019-11-07 03:50:07,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:50:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:50:07,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 03:50:07,271 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146993363] [2019-11-07 03:50:07,272 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:50:07,273 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 03:50:07,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219584413] [2019-11-07 03:50:07,275 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 03:50:07,275 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:50:07,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 03:50:07,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-11-07 03:50:07,276 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 9 states. [2019-11-07 03:50:07,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:50:07,527 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2019-11-07 03:50:07,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 03:50:07,528 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2019-11-07 03:50:07,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:50:07,529 INFO L225 Difference]: With dead ends: 25 [2019-11-07 03:50:07,529 INFO L226 Difference]: Without dead ends: 22 [2019-11-07 03:50:07,530 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2019-11-07 03:50:07,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-07 03:50:07,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-07 03:50:07,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-07 03:50:07,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2019-11-07 03:50:07,544 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 16 [2019-11-07 03:50:07,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:50:07,544 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2019-11-07 03:50:07,544 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 03:50:07,545 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2019-11-07 03:50:07,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-07 03:50:07,545 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:50:07,546 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:50:07,546 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:50:07,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:50:07,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1545476716, now seen corresponding path program 1 times [2019-11-07 03:50:07,547 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:50:07,548 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418446337] [2019-11-07 03:50:07,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:50:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:50:07,838 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 03:50:07,839 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418446337] [2019-11-07 03:50:07,840 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:50:07,840 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 03:50:07,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220515784] [2019-11-07 03:50:07,842 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 03:50:07,842 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:50:07,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 03:50:07,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-11-07 03:50:07,843 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 9 states. [2019-11-07 03:50:08,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:50:08,055 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-11-07 03:50:08,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 03:50:08,058 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2019-11-07 03:50:08,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:50:08,059 INFO L225 Difference]: With dead ends: 22 [2019-11-07 03:50:08,059 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 03:50:08,060 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2019-11-07 03:50:08,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 03:50:08,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 03:50:08,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 03:50:08,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 03:50:08,063 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2019-11-07 03:50:08,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:50:08,063 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 03:50:08,063 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 03:50:08,063 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 03:50:08,064 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 03:50:08,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 03:50:08,290 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-07 03:50:08,290 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 03:50:08,291 INFO L443 ceAbstractionStarter]: For program point list_delEXIT(lines 871 874) no Hoare annotation was computed. [2019-11-07 03:50:08,291 INFO L443 ceAbstractionStarter]: For program point L872(line 872) no Hoare annotation was computed. [2019-11-07 03:50:08,291 INFO L439 ceAbstractionStarter]: At program point list_delENTRY(lines 871 874) the Hoare annotation is: (or (= (select (select |#memory_int| |list_del_#in~entry.base|) 8) 1) (not (<= |~#head~0.offset| 0)) (not (= |list_del_#in~entry.offset| 0)) (not (= 1 (select (select |old(#memory_int)| |list_del_#in~entry.base|) 8))) (not (<= 0 |~#head~0.offset|))) [2019-11-07 03:50:08,291 INFO L439 ceAbstractionStarter]: At program point L872-2(line 872) the Hoare annotation is: (or (not (<= |~#head~0.offset| 0)) (not (= |list_del_#in~entry.offset| 0)) (not (= 1 (select (select |old(#memory_int)| |list_del_#in~entry.base|) 8))) (not (<= 0 |~#head~0.offset|))) [2019-11-07 03:50:08,291 INFO L443 ceAbstractionStarter]: For program point L872-3(line 872) no Hoare annotation was computed. [2019-11-07 03:50:08,292 INFO L439 ceAbstractionStarter]: At program point L867-2(line 867) the Hoare annotation is: (or (not (<= |~#head~0.offset| 0)) (not (= (select (select |old(#memory_int)| |list_add_#in~new.base|) 8) 0)) (not (= 0 |list_add_#in~new.offset|)) (not (<= 0 |~#head~0.offset|))) [2019-11-07 03:50:08,292 INFO L439 ceAbstractionStarter]: At program point list_addENTRY(lines 866 869) the Hoare annotation is: (or (not (<= |~#head~0.offset| 0)) (not (= (select (select |old(#memory_int)| |list_add_#in~new.base|) 8) 0)) (not (= 0 |list_add_#in~new.offset|)) (not (<= 0 |~#head~0.offset|)) (= 0 (select (select |#memory_int| |list_add_#in~new.base|) 8))) [2019-11-07 03:50:08,292 INFO L443 ceAbstractionStarter]: For program point L867-3(line 867) no Hoare annotation was computed. [2019-11-07 03:50:08,292 INFO L443 ceAbstractionStarter]: For program point list_addEXIT(lines 866 869) no Hoare annotation was computed. [2019-11-07 03:50:08,292 INFO L443 ceAbstractionStarter]: For program point L867(line 867) no Hoare annotation was computed. [2019-11-07 03:50:08,293 INFO L443 ceAbstractionStarter]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2019-11-07 03:50:08,293 INFO L443 ceAbstractionStarter]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-11-07 03:50:08,293 INFO L446 ceAbstractionStarter]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2019-11-07 03:50:08,293 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 03:50:08,293 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= |~#head~0.offset| 0) (<= 0 |~#head~0.offset|)) [2019-11-07 03:50:08,294 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 03:50:08,294 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 03:50:08,294 INFO L443 ceAbstractionStarter]: For program point L881(lines 881 886) no Hoare annotation was computed. [2019-11-07 03:50:08,294 INFO L443 ceAbstractionStarter]: For program point L881-1(lines 881 886) no Hoare annotation was computed. [2019-11-07 03:50:08,294 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 878 888) the Hoare annotation is: true [2019-11-07 03:50:08,294 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 878 888) no Hoare annotation was computed. [2019-11-07 03:50:08,295 INFO L439 ceAbstractionStarter]: At program point L884(line 884) the Hoare annotation is: (or (not (<= |~#head~0.offset| 0)) (not (<= 0 |~#head~0.offset|)) (and (= main_~dev~0.offset 0) (= 0 (select (select |#memory_int| main_~dev~0.base) (+ |~#head~0.offset| 8))))) [2019-11-07 03:50:08,295 INFO L439 ceAbstractionStarter]: At program point L883(line 883) the Hoare annotation is: (or (not (<= |~#head~0.offset| 0)) (and (= main_~dev~0.offset 0) (= 0 (select (select |#memory_int| main_~dev~0.base) (+ |~#head~0.offset| 8)))) (not (<= 0 |~#head~0.offset|))) [2019-11-07 03:50:08,295 INFO L439 ceAbstractionStarter]: At program point L883-1(line 883) the Hoare annotation is: (or (not (<= |~#head~0.offset| 0)) (not (<= 0 |~#head~0.offset|)) (and (= main_~dev~0.offset 0) (= 1 (select (select |#memory_int| main_~dev~0.base) 8)))) [2019-11-07 03:50:08,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:50:08 BoogieIcfgContainer [2019-11-07 03:50:08,298 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 03:50:08,301 INFO L168 Benchmark]: Toolchain (without parser) took 3600.05 ms. Allocated memory was 144.2 MB in the beginning and 234.4 MB in the end (delta: 90.2 MB). Free memory was 100.8 MB in the beginning and 80.4 MB in the end (delta: 20.4 MB). Peak memory consumption was 110.5 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:08,302 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 03:50:08,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 638.27 ms. Allocated memory was 144.2 MB in the beginning and 202.9 MB in the end (delta: 58.7 MB). Free memory was 100.6 MB in the beginning and 167.8 MB in the end (delta: -67.3 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:08,304 INFO L168 Benchmark]: Boogie Preprocessor took 117.97 ms. Allocated memory is still 202.9 MB. Free memory was 167.8 MB in the beginning and 164.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:08,305 INFO L168 Benchmark]: RCFGBuilder took 699.57 ms. Allocated memory is still 202.9 MB. Free memory was 164.2 MB in the beginning and 119.3 MB in the end (delta: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:08,306 INFO L168 Benchmark]: TraceAbstraction took 2139.88 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 119.3 MB in the beginning and 80.4 MB in the end (delta: 38.8 MB). Peak memory consumption was 70.3 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:08,311 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 638.27 ms. Allocated memory was 144.2 MB in the beginning and 202.9 MB in the end (delta: 58.7 MB). Free memory was 100.6 MB in the beginning and 167.8 MB in the end (delta: -67.3 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.97 ms. Allocated memory is still 202.9 MB. Free memory was 167.8 MB in the beginning and 164.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 699.57 ms. Allocated memory is still 202.9 MB. Free memory was 164.2 MB in the beginning and 119.3 MB in the end (delta: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2139.88 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 119.3 MB in the beginning and 80.4 MB in the end (delta: 38.8 MB). Peak memory consumption was 70.3 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, 26 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 42 SDtfs, 47 SDslu, 128 SDs, 0 SdLazy, 152 SolverSat, 19 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, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 21 PreInvPairs, 23 NumberOfFragments, 173 HoareAnnotationTreeSize, 21 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 71 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 4750 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...