/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/rule60_list.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:34:14,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:34:14,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:34:14,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:34:14,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:34:14,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:34:14,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:34:14,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:34:14,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:34:14,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:34:14,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:34:14,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:34:14,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:34:14,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:34:14,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:34:14,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:34:14,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:34:14,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:34:14,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:34:14,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:34:14,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:34:14,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:34:14,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:34:14,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:34:14,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:34:14,674 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:34:14,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:34:14,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:34:14,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:34:14,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:34:14,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:34:14,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:34:14,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:34:14,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:34:14,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:34:14,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:34:14,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:34:14,684 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:34:14,684 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:34:14,685 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:34:14,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:34:14,687 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:34:14,699 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:34:14,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:34:14,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:34:14,701 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:34:14,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:34:14,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:34:14,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:34:14,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:34:14,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:34:14,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:34:14,702 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:34:14,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:34:14,702 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:34:14,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:34:14,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:34:14,703 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:34:14,703 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:34:14,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:34:14,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:34:14,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:34:14,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:34:14,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:34:14,704 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:34:15,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:34:15,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:34:15,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:34:15,080 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:34:15,080 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:34:15,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list.i [2020-10-23 20:34:15,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39cb9e821/b24ff68c35f740f2a9042249c1fec48b/FLAG6c9e29d1f [2020-10-23 20:34:15,771 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:34:15,772 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule60_list.i [2020-10-23 20:34:15,793 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39cb9e821/b24ff68c35f740f2a9042249c1fec48b/FLAG6c9e29d1f [2020-10-23 20:34:16,053 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39cb9e821/b24ff68c35f740f2a9042249c1fec48b [2020-10-23 20:34:16,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:34:16,063 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:34:16,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:34:16,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:34:16,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:34:16,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:34:16" (1/1) ... [2020-10-23 20:34:16,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37fca225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:16, skipping insertion in model container [2020-10-23 20:34:16,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:34:16" (1/1) ... [2020-10-23 20:34:16,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:34:16,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:34:16,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:34:16,485 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:34:16,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:34:16,654 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:34:16,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:16 WrapperNode [2020-10-23 20:34:16,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:34:16,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:34:16,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:34:16,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:34:16,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:16" (1/1) ... [2020-10-23 20:34:16,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:16" (1/1) ... [2020-10-23 20:34:16,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:16" (1/1) ... [2020-10-23 20:34:16,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:16" (1/1) ... [2020-10-23 20:34:16,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:16" (1/1) ... [2020-10-23 20:34:16,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:16" (1/1) ... [2020-10-23 20:34:16,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:16" (1/1) ... [2020-10-23 20:34:16,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:34:16,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:34:16,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:34:16,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:34:16,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:16" (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 [2020-10-23 20:34:16,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:34:16,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:34:16,820 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:34:16,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-10-23 20:34:16,821 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-23 20:34:16,821 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-10-23 20:34:16,821 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:34:16,821 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:34:16,821 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:34:16,821 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:34:16,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:34:16,821 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-10-23 20:34:16,822 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-10-23 20:34:16,822 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-10-23 20:34:16,822 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-10-23 20:34:16,822 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-10-23 20:34:16,822 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-10-23 20:34:16,822 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-10-23 20:34:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-10-23 20:34:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-10-23 20:34:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-10-23 20:34:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-10-23 20:34:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-10-23 20:34:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-10-23 20:34:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-10-23 20:34:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-10-23 20:34:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-10-23 20:34:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-10-23 20:34:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-10-23 20:34:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-10-23 20:34:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-10-23 20:34:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-10-23 20:34:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-10-23 20:34:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-10-23 20:34:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-10-23 20:34:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-10-23 20:34:16,826 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-10-23 20:34:16,826 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-10-23 20:34:16,826 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-10-23 20:34:16,826 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-10-23 20:34:16,826 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-10-23 20:34:16,826 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-10-23 20:34:16,826 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-10-23 20:34:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-10-23 20:34:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-10-23 20:34:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-10-23 20:34:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-10-23 20:34:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-10-23 20:34:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-10-23 20:34:16,827 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-10-23 20:34:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:34:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-23 20:34:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-10-23 20:34:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-10-23 20:34:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-10-23 20:34:16,828 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-23 20:34:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-10-23 20:34:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-10-23 20:34:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-10-23 20:34:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-10-23 20:34:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-10-23 20:34:16,829 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-10-23 20:34:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-10-23 20:34:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-10-23 20:34:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-10-23 20:34:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-10-23 20:34:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-10-23 20:34:16,830 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-10-23 20:34:16,831 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-10-23 20:34:16,831 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-10-23 20:34:16,831 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-10-23 20:34:16,831 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-10-23 20:34:16,831 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-10-23 20:34:16,831 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-10-23 20:34:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-10-23 20:34:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-10-23 20:34:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-10-23 20:34:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-10-23 20:34:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-10-23 20:34:16,832 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-10-23 20:34:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-10-23 20:34:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-10-23 20:34:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-10-23 20:34:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-10-23 20:34:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-10-23 20:34:16,833 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-10-23 20:34:16,834 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-10-23 20:34:16,834 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-10-23 20:34:16,834 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-10-23 20:34:16,834 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-10-23 20:34:16,834 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-10-23 20:34:16,834 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-10-23 20:34:16,834 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-10-23 20:34:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-10-23 20:34:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-10-23 20:34:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-10-23 20:34:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-10-23 20:34:16,835 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-10-23 20:34:16,836 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-10-23 20:34:16,836 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-10-23 20:34:16,836 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-10-23 20:34:16,836 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-10-23 20:34:16,836 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-10-23 20:34:16,836 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-10-23 20:34:16,836 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-10-23 20:34:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-10-23 20:34:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-10-23 20:34:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-10-23 20:34:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-10-23 20:34:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-10-23 20:34:16,837 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-10-23 20:34:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-10-23 20:34:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-10-23 20:34:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:34:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-23 20:34:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-23 20:34:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:34:16,838 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-23 20:34:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-10-23 20:34:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-23 20:34:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-10-23 20:34:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-10-23 20:34:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-10-23 20:34:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-10-23 20:34:16,839 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-10-23 20:34:16,840 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-10-23 20:34:16,840 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-10-23 20:34:16,840 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-10-23 20:34:16,840 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-10-23 20:34:16,840 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-10-23 20:34:16,840 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-10-23 20:34:16,840 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-23 20:34:16,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:34:16,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:34:16,841 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-10-23 20:34:16,841 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:34:16,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:34:16,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:34:16,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:34:16,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-23 20:34:16,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:34:16,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:34:16,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:34:16,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:34:17,324 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:34:17,324 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-23 20:34:17,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:34:17 BoogieIcfgContainer [2020-10-23 20:34:17,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:34:17,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:34:17,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:34:17,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:34:17,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:34:16" (1/3) ... [2020-10-23 20:34:17,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7764c68d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:34:17, skipping insertion in model container [2020-10-23 20:34:17,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:16" (2/3) ... [2020-10-23 20:34:17,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7764c68d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:34:17, skipping insertion in model container [2020-10-23 20:34:17,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:34:17" (3/3) ... [2020-10-23 20:34:17,335 INFO L111 eAbstractionObserver]: Analyzing ICFG rule60_list.i [2020-10-23 20:34:17,348 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:34:17,354 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 20:34:17,369 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 20:34:17,415 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:34:17,415 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:34:17,415 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:34:17,415 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:34:17,415 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:34:17,415 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:34:17,416 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:34:17,416 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:34:17,436 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2020-10-23 20:34:17,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-23 20:34:17,450 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:34:17,451 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:34:17,451 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:34:17,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:34:17,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1129445963, now seen corresponding path program 1 times [2020-10-23 20:34:17,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:34:17,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [234824093] [2020-10-23 20:34:17,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:34:17,584 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:34:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:17,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:34:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:18,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:34:18,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [234824093] [2020-10-23 20:34:18,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:34:18,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 20:34:18,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242224642] [2020-10-23 20:34:18,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 20:34:18,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:34:18,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 20:34:18,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 20:34:18,053 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 9 states. [2020-10-23 20:34:18,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:34:18,668 INFO L93 Difference]: Finished difference Result 87 states and 99 transitions. [2020-10-23 20:34:18,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 20:34:18,671 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-23 20:34:18,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:34:18,680 INFO L225 Difference]: With dead ends: 87 [2020-10-23 20:34:18,681 INFO L226 Difference]: Without dead ends: 48 [2020-10-23 20:34:18,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2020-10-23 20:34:18,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-23 20:34:18,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-23 20:34:18,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-23 20:34:18,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2020-10-23 20:34:18,738 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 29 [2020-10-23 20:34:18,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:34:18,739 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2020-10-23 20:34:18,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 20:34:18,739 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2020-10-23 20:34:18,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-23 20:34:18,741 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:34:18,741 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:34:18,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:34:18,742 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:34:18,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:34:18,743 INFO L82 PathProgramCache]: Analyzing trace with hash 799201000, now seen corresponding path program 1 times [2020-10-23 20:34:18,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:34:18,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1783364872] [2020-10-23 20:34:18,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:34:18,750 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:34:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:18,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:34:18,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:18,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 20:34:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:19,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:34:19,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1783364872] [2020-10-23 20:34:19,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:34:19,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-23 20:34:19,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100214822] [2020-10-23 20:34:19,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-23 20:34:19,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:34:19,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-23 20:34:19,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-23 20:34:19,049 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 12 states. [2020-10-23 20:34:19,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:34:19,768 INFO L93 Difference]: Finished difference Result 51 states and 50 transitions. [2020-10-23 20:34:19,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 20:34:19,769 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2020-10-23 20:34:19,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:34:19,771 INFO L225 Difference]: With dead ends: 51 [2020-10-23 20:34:19,771 INFO L226 Difference]: Without dead ends: 47 [2020-10-23 20:34:19,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2020-10-23 20:34:19,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-23 20:34:19,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-23 20:34:19,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-23 20:34:19,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 46 transitions. [2020-10-23 20:34:19,787 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 46 transitions. Word has length 37 [2020-10-23 20:34:19,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:34:19,787 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 46 transitions. [2020-10-23 20:34:19,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-23 20:34:19,788 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 46 transitions. [2020-10-23 20:34:19,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-23 20:34:19,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:34:19,789 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:34:19,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:34:19,790 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:34:19,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:34:19,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1938821290, now seen corresponding path program 1 times [2020-10-23 20:34:19,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:34:19,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [961780166] [2020-10-23 20:34:19,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:34:19,797 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:34:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:19,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:34:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:20,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-23 20:34:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:20,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-23 20:34:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:20,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:34:20,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [961780166] [2020-10-23 20:34:20,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:34:20,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-23 20:34:20,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648339520] [2020-10-23 20:34:20,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-23 20:34:20,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:34:20,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-23 20:34:20,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-23 20:34:20,278 INFO L87 Difference]: Start difference. First operand 47 states and 46 transitions. Second operand 12 states. [2020-10-23 20:34:21,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:34:21,051 INFO L93 Difference]: Finished difference Result 47 states and 46 transitions. [2020-10-23 20:34:21,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 20:34:21,052 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 46 [2020-10-23 20:34:21,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:34:21,053 INFO L225 Difference]: With dead ends: 47 [2020-10-23 20:34:21,053 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 20:34:21,054 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2020-10-23 20:34:21,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 20:34:21,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 20:34:21,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 20:34:21,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 20:34:21,055 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2020-10-23 20:34:21,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:34:21,055 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 20:34:21,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-23 20:34:21,056 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 20:34:21,056 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 20:34:21,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:34:21,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 20:34:21,613 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 29 [2020-10-23 20:34:22,641 INFO L277 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-10-23 20:34:22,641 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-23 20:34:22,641 INFO L277 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-10-23 20:34:22,642 INFO L277 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-10-23 20:34:22,642 INFO L277 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true [2020-10-23 20:34:22,642 INFO L277 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true [2020-10-23 20:34:22,642 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-23 20:34:22,642 INFO L277 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true [2020-10-23 20:34:22,642 INFO L277 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-10-23 20:34:22,642 INFO L277 CegarLoopResult]: At program point L3-5(line 3) the Hoare annotation is: true [2020-10-23 20:34:22,642 INFO L277 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 878) the Hoare annotation is: true [2020-10-23 20:34:22,642 INFO L277 CegarLoopResult]: At program point L878(line 878) the Hoare annotation is: true [2020-10-23 20:34:22,643 INFO L277 CegarLoopResult]: At program point L878-1(line 878) the Hoare annotation is: true [2020-10-23 20:34:22,643 INFO L277 CegarLoopResult]: At program point L878-2(line 878) the Hoare annotation is: true [2020-10-23 20:34:22,643 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |#t~string5.base| |old(#t~string5.base)|) (= |old(#t~string6.offset)| |#t~string6.offset|) (= |old(~#head~0.base)| |~#head~0.base|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |~#head~0.offset| |old(~#head~0.offset)|) (= |old(#t~string4.offset)| |#t~string4.offset|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-23 20:34:22,643 INFO L277 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true [2020-10-23 20:34:22,643 INFO L277 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true [2020-10-23 20:34:22,643 INFO L277 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-10-23 20:34:22,644 INFO L270 CegarLoopResult]: At program point list_delFINAL(lines 873 876) the Hoare annotation is: (or (not (= |list_del_#in~entry.offset| 0)) (and (= (select (select |#memory_int| |list_del_#in~entry.base|) 8) 0) (= list_del_~entry.base |list_del_#in~entry.base|) (= |list_del_#in~entry.offset| list_del_~entry.offset)) (not (= (select (select |old(#memory_int)| |list_del_#in~entry.base|) 8) 1))) [2020-10-23 20:34:22,644 INFO L270 CegarLoopResult]: At program point L875(line 875) the Hoare annotation is: (or (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= list_del_~entry.base |list_del_#in~entry.base|) (= |list_del_#in~entry.offset| list_del_~entry.offset)) (not (= |list_del_#in~entry.offset| 0)) (not (= (select (select |old(#memory_int)| |list_del_#in~entry.base|) 8) 1))) [2020-10-23 20:34:22,644 INFO L270 CegarLoopResult]: At program point list_delEXIT(lines 873 876) the Hoare annotation is: (or (not (= |list_del_#in~entry.offset| 0)) (and (= (select (select |#memory_int| |list_del_#in~entry.base|) 8) 0) (= list_del_~entry.base |list_del_#in~entry.base|) (= |list_del_#in~entry.offset| list_del_~entry.offset)) (not (= (select (select |old(#memory_int)| |list_del_#in~entry.base|) 8) 1))) [2020-10-23 20:34:22,644 INFO L270 CegarLoopResult]: At program point L874(line 874) the Hoare annotation is: (or (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= list_del_~entry.base |list_del_#in~entry.base|) (= |list_del_#in~entry.offset| list_del_~entry.offset)) (not (= |list_del_#in~entry.offset| 0)) (not (= (select (select |old(#memory_int)| |list_del_#in~entry.base|) 8) 1))) [2020-10-23 20:34:22,644 INFO L270 CegarLoopResult]: At program point L874-1(line 874) the Hoare annotation is: (or (not (= |list_del_#in~entry.offset| 0)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |list_del_#t~mem36| 1) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= list_del_~entry.base |list_del_#in~entry.base|) (= |list_del_#in~entry.offset| list_del_~entry.offset)) (not (= (select (select |old(#memory_int)| |list_del_#in~entry.base|) 8) 1))) [2020-10-23 20:34:22,645 INFO L270 CegarLoopResult]: At program point list_delENTRY(lines 873 876) the Hoare annotation is: (or (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) (not (= |list_del_#in~entry.offset| 0)) (not (= (select (select |old(#memory_int)| |list_del_#in~entry.base|) 8) 1))) [2020-10-23 20:34:22,645 INFO L270 CegarLoopResult]: At program point L874-3(line 874) the Hoare annotation is: (or (not (= |list_del_#in~entry.offset| 0)) (not (= (select (select |old(#memory_int)| |list_del_#in~entry.base|) 8) 1))) [2020-10-23 20:34:22,645 INFO L270 CegarLoopResult]: At program point L874-4(line 874) the Hoare annotation is: (or (not (= |list_del_#in~entry.offset| 0)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |list_del_#t~mem36| 1) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= list_del_~entry.base |list_del_#in~entry.base|) (= |list_del_#in~entry.offset| list_del_~entry.offset)) (not (= (select (select |old(#memory_int)| |list_del_#in~entry.base|) 8) 1))) [2020-10-23 20:34:22,645 INFO L270 CegarLoopResult]: At program point L869-4(line 869) the Hoare annotation is: (let ((.cse0 (not (= (select (select |old(#memory_int)| |list_add_#in~new.base|) 8) 0))) (.cse1 (not (= |list_add_#in~new.offset| 0)))) (and (or .cse0 .cse1 (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= list_add_~new.base |list_add_#in~new.base|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |list_add_#in~new.offset| list_add_~new.offset))) (or .cse0 .cse1 (= |list_add_#t~mem35| 0)))) [2020-10-23 20:34:22,645 INFO L270 CegarLoopResult]: At program point list_addENTRY(lines 868 871) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |list_add_#in~new.base|) 8) 0)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) (not (= |list_add_#in~new.offset| 0))) [2020-10-23 20:34:22,646 INFO L270 CegarLoopResult]: At program point list_addFINAL(lines 868 871) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |list_add_#in~new.base|) 8) 0)) (and (= list_add_~new.base |list_add_#in~new.base|) (= (select (select |#memory_int| |list_add_#in~new.base|) 8) 1) (= |list_add_#in~new.offset| list_add_~new.offset)) (not (= |list_add_#in~new.offset| 0))) [2020-10-23 20:34:22,646 INFO L270 CegarLoopResult]: At program point L870(line 870) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |list_add_#in~new.base|) 8) 0)) (not (= |list_add_#in~new.offset| 0)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= list_add_~new.base |list_add_#in~new.base|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |list_add_#in~new.offset| list_add_~new.offset))) [2020-10-23 20:34:22,646 INFO L270 CegarLoopResult]: At program point L869(line 869) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |list_add_#in~new.base|) 8) 0)) (not (= |list_add_#in~new.offset| 0)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= list_add_~new.base |list_add_#in~new.base|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |list_add_#in~new.offset| list_add_~new.offset))) [2020-10-23 20:34:22,646 INFO L270 CegarLoopResult]: At program point L868(lines 868 871) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |list_add_#in~new.base|) 8) 0)) (not (= |list_add_#in~new.offset| 0)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= list_add_~new.base |list_add_#in~new.base|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |list_add_#in~new.offset| list_add_~new.offset))) [2020-10-23 20:34:22,646 INFO L270 CegarLoopResult]: At program point L869-1(line 869) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |list_add_#in~new.base|) 8) 0)) (not (= |list_add_#in~new.offset| 0)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= list_add_~new.base |list_add_#in~new.base|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |list_add_#in~new.offset| list_add_~new.offset) (= |list_add_#t~mem35| 0))) [2020-10-23 20:34:22,646 INFO L270 CegarLoopResult]: At program point list_addEXIT(lines 868 871) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |list_add_#in~new.base|) 8) 0)) (and (= list_add_~new.base |list_add_#in~new.base|) (= (select (select |#memory_int| |list_add_#in~new.base|) 8) 1) (= |list_add_#in~new.offset| list_add_~new.offset)) (not (= |list_add_#in~new.offset| 0))) [2020-10-23 20:34:22,646 INFO L270 CegarLoopResult]: At program point L869-3(line 869) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |list_add_#in~new.base|) 8) 0)) (not (= |list_add_#in~new.offset| 0))) [2020-10-23 20:34:22,647 INFO L277 CegarLoopResult]: At program point __blast_assertEXIT(lines 6 9) the Hoare annotation is: true [2020-10-23 20:34:22,647 INFO L277 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: true [2020-10-23 20:34:22,647 INFO L277 CegarLoopResult]: At program point __blast_assertFINAL(lines 6 9) the Hoare annotation is: true [2020-10-23 20:34:22,647 INFO L277 CegarLoopResult]: At program point __blast_assertENTRY(lines 6 9) the Hoare annotation is: true [2020-10-23 20:34:22,647 INFO L277 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-10-23 20:34:22,647 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-23 20:34:22,647 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 20:34:22,647 INFO L277 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-10-23 20:34:22,647 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 880 890) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-23 20:34:22,647 INFO L270 CegarLoopResult]: At program point mainEXIT(lines 880 890) the Hoare annotation is: (and (= main_~dev~0.offset 0) (= |main_#t~malloc37.offset| 0)) [2020-10-23 20:34:22,648 INFO L270 CegarLoopResult]: At program point L886(line 886) the Hoare annotation is: (and (= main_~dev~0.offset 0) (= (select (select |#memory_int| main_~dev~0.base) 8) 0) (= |main_#t~malloc37.offset| 0)) [2020-10-23 20:34:22,648 INFO L270 CegarLoopResult]: At program point L885(line 885) the Hoare annotation is: (and (= main_~dev~0.offset 0) (= (select (select |#memory_int| main_~dev~0.base) 8) 1) (= |main_#t~malloc37.offset| 0)) [2020-10-23 20:34:22,648 INFO L270 CegarLoopResult]: At program point L884(line 884) the Hoare annotation is: (and (= main_~dev~0.offset 0) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |main_#t~malloc37.offset| 0) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-10-23 20:34:22,648 INFO L270 CegarLoopResult]: At program point L883(lines 883 888) the Hoare annotation is: (and (= main_~dev~0.offset 0) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |main_#t~malloc37.offset| 0) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-10-23 20:34:22,648 INFO L270 CegarLoopResult]: At program point L884-1(line 884) the Hoare annotation is: (and (= main_~dev~0.offset 0) (= |main_#t~malloc37.offset| 0) (= (select (select |#memory_int| main_~dev~0.base) (+ main_~dev~0.offset 8)) 0)) [2020-10-23 20:34:22,648 INFO L270 CegarLoopResult]: At program point L882(line 882) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-23 20:34:22,648 INFO L270 CegarLoopResult]: At program point L883-1(lines 883 888) the Hoare annotation is: (and (= main_~dev~0.offset 0) (= |main_#t~malloc37.offset| 0)) [2020-10-23 20:34:22,649 INFO L270 CegarLoopResult]: At program point L882-1(line 882) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |main_#t~malloc37.offset| 0) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-10-23 20:34:22,649 INFO L270 CegarLoopResult]: At program point mainFINAL(lines 880 890) the Hoare annotation is: (and (= main_~dev~0.offset 0) (= |main_#t~malloc37.offset| 0)) [2020-10-23 20:34:22,664 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 20:34:22,665 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 20:34:22,669 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 20:34:22,670 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 20:34:22,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:34:22 BoogieIcfgContainer [2020-10-23 20:34:22,672 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:34:22,674 INFO L168 Benchmark]: Toolchain (without parser) took 6615.90 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 106.8 MB in the beginning and 184.8 MB in the end (delta: -78.0 MB). Peak memory consumption was 103.7 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:22,675 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 124.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:34:22,676 INFO L168 Benchmark]: CACSL2BoogieTranslator took 590.64 ms. Allocated memory is still 151.0 MB. Free memory was 106.1 MB in the beginning and 122.9 MB in the end (delta: -16.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:22,677 INFO L168 Benchmark]: Boogie Preprocessor took 84.16 ms. Allocated memory is still 151.0 MB. Free memory was 122.9 MB in the beginning and 120.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:22,678 INFO L168 Benchmark]: RCFGBuilder took 585.59 ms. Allocated memory is still 151.0 MB. Free memory was 120.0 MB in the beginning and 79.1 MB in the end (delta: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:22,679 INFO L168 Benchmark]: TraceAbstraction took 5344.40 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 78.8 MB in the beginning and 184.8 MB in the end (delta: -105.9 MB). Peak memory consumption was 76.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:22,683 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 124.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 590.64 ms. Allocated memory is still 151.0 MB. Free memory was 106.1 MB in the beginning and 122.9 MB in the end (delta: -16.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 84.16 ms. Allocated memory is still 151.0 MB. Free memory was 122.9 MB in the beginning and 120.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 585.59 ms. Allocated memory is still 151.0 MB. Free memory was 120.0 MB in the beginning and 79.1 MB in the end (delta: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5344.40 ms. Allocated memory was 151.0 MB in the beginning and 218.1 MB in the end (delta: 67.1 MB). Free memory was 78.8 MB in the beginning and 184.8 MB in the end (delta: -105.9 MB). Peak memory consumption was 76.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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 - ProcedureContractResult [Line: 3]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 873]: Procedure Contract for list_del [2020-10-23 20:34:22,693 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 20:34:22,693 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 20:34:22,694 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 20:34:22,694 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived contract for procedure list_del: (!(entry == 0) || ((unknown-#memory_int-unknown[entry][8] == 0 && entry == entry) && entry == entry)) || !(\old(unknown-#memory_int-unknown)[entry][8] == 1) - ProcedureContractResult [Line: 6]: Procedure Contract for __blast_assert Derived contract for procedure __blast_assert: 1 - ProcedureContractResult [Line: 868]: Procedure Contract for list_add [2020-10-23 20:34:22,695 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 20:34:22,695 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 20:34:22,696 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 20:34:22,696 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived contract for procedure list_add: (!(\old(unknown-#memory_int-unknown)[new][8] == 0) || ((new == new && unknown-#memory_int-unknown[new][8] == 1) && new == new)) || !(new == 0) - ProcedureContractResult [Line: 880]: Procedure Contract for main Derived contract for procedure main: dev == 0 && malloc(sizeof(*dev)) == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 92 SDtfs, 143 SDslu, 222 SDs, 0 SdLazy, 697 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 54 LocationsWithAnnotation, 100 PreInvPairs, 119 NumberOfFragments, 671 HoareAnnotationTreeSize, 100 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 54 FomulaSimplificationsInter, 1234 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...