/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/fo_test.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 16:39:25,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 16:39:25,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 16:39:25,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 16:39:25,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 16:39:25,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 16:39:25,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 16:39:25,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 16:39:25,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 16:39:25,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 16:39:25,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 16:39:25,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 16:39:25,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 16:39:25,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 16:39:25,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 16:39:25,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 16:39:25,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 16:39:25,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 16:39:25,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 16:39:25,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 16:39:25,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 16:39:25,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 16:39:25,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 16:39:25,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 16:39:25,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 16:39:25,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 16:39:25,760 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 16:39:25,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 16:39:25,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 16:39:25,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 16:39:25,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 16:39:25,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 16:39:25,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 16:39:25,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 16:39:25,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 16:39:25,774 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 16:39:25,775 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 16:39:25,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 16:39:25,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 16:39:25,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 16:39:25,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 16:39:25,788 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 16:39:25,813 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 16:39:25,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 16:39:25,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 16:39:25,815 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 16:39:25,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 16:39:25,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 16:39:25,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 16:39:25,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 16:39:25,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 16:39:25,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 16:39:25,817 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 16:39:25,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 16:39:25,817 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 16:39:25,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 16:39:25,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 16:39:25,818 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 16:39:25,818 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 16:39:25,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 16:39:25,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:39:25,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 16:39:25,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 16:39:25,819 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 16:39:25,819 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 16:39:26,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 16:39:26,395 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 16:39:26,401 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 16:39:26,403 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 16:39:26,404 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 16:39:26,406 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/fo_test.i [2020-09-04 16:39:26,525 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82943db65/e3185fddc5e14eb5a29c8fc078dce0a8/FLAG4d3e00352 [2020-09-04 16:39:27,254 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 16:39:27,255 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/fo_test.i [2020-09-04 16:39:27,283 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82943db65/e3185fddc5e14eb5a29c8fc078dce0a8/FLAG4d3e00352 [2020-09-04 16:39:27,524 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82943db65/e3185fddc5e14eb5a29c8fc078dce0a8 [2020-09-04 16:39:27,544 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 16:39:27,548 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 16:39:27,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 16:39:27,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 16:39:27,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 16:39:27,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:39:27" (1/1) ... [2020-09-04 16:39:27,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ecdd20d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:27, skipping insertion in model container [2020-09-04 16:39:27,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:39:27" (1/1) ... [2020-09-04 16:39:27,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 16:39:27,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 16:39:28,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:39:28,354 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 16:39:28,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:39:28,536 INFO L208 MainTranslator]: Completed translation [2020-09-04 16:39:28,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:28 WrapperNode [2020-09-04 16:39:28,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 16:39:28,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 16:39:28,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 16:39:28,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 16:39:28,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:28" (1/1) ... [2020-09-04 16:39:28,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:28" (1/1) ... [2020-09-04 16:39:28,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:28" (1/1) ... [2020-09-04 16:39:28,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:28" (1/1) ... [2020-09-04 16:39:28,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:28" (1/1) ... [2020-09-04 16:39:28,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:28" (1/1) ... [2020-09-04 16:39:28,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:28" (1/1) ... [2020-09-04 16:39:28,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 16:39:28,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 16:39:28,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 16:39:28,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 16:39:28,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 16:39:28,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 16:39:28,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 16:39:28,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-04 16:39:28,712 INFO L138 BoogieDeclarations]: Found implementation of procedure open [2020-09-04 16:39:28,712 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 16:39:28,712 INFO L138 BoogieDeclarations]: Found implementation of procedure l_read [2020-09-04 16:39:28,712 INFO L138 BoogieDeclarations]: Found implementation of procedure l_open [2020-09-04 16:39:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 16:39:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-04 16:39:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-04 16:39:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-04 16:39:28,714 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-04 16:39:28,714 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-04 16:39:28,714 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-04 16:39:28,714 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-04 16:39:28,714 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-04 16:39:28,715 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-04 16:39:28,715 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-04 16:39:28,715 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-04 16:39:28,716 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-04 16:39:28,716 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-04 16:39:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-04 16:39:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-04 16:39:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-04 16:39:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-04 16:39:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-04 16:39:28,718 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-04 16:39:28,718 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-04 16:39:28,718 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-04 16:39:28,718 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-04 16:39:28,718 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-04 16:39:28,719 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-04 16:39:28,719 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-04 16:39:28,719 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-04 16:39:28,719 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-04 16:39:28,719 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-04 16:39:28,720 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-04 16:39:28,720 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-04 16:39:28,720 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-04 16:39:28,720 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-04 16:39:28,720 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-04 16:39:28,720 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-04 16:39:28,721 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-04 16:39:28,721 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-04 16:39:28,721 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-04 16:39:28,721 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-04 16:39:28,721 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-04 16:39:28,721 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-04 16:39:28,722 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-04 16:39:28,722 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-04 16:39:28,722 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-04 16:39:28,722 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-04 16:39:28,722 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-04 16:39:28,722 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-04 16:39:28,723 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-04 16:39:28,723 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-04 16:39:28,723 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-04 16:39:28,723 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-04 16:39:28,723 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 16:39:28,723 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-04 16:39:28,723 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-04 16:39:28,723 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 16:39:28,724 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-04 16:39:28,724 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-04 16:39:28,724 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-04 16:39:28,724 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-04 16:39:28,724 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-04 16:39:28,724 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-04 16:39:28,725 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-04 16:39:28,725 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-04 16:39:28,725 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-04 16:39:28,725 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-04 16:39:28,725 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2020-09-04 16:39:28,725 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-04 16:39:28,726 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-04 16:39:28,726 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-04 16:39:28,726 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-04 16:39:28,726 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-04 16:39:28,726 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-04 16:39:28,726 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-04 16:39:28,727 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-04 16:39:28,727 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-04 16:39:28,727 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-04 16:39:28,727 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-04 16:39:28,727 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-04 16:39:28,727 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-04 16:39:28,728 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-04 16:39:28,728 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-04 16:39:28,728 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-04 16:39:28,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-04 16:39:28,728 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-04 16:39:28,728 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-04 16:39:28,728 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-04 16:39:28,729 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-04 16:39:28,729 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-04 16:39:28,729 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-04 16:39:28,729 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-04 16:39:28,729 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-04 16:39:28,729 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-04 16:39:28,730 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-04 16:39:28,730 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-04 16:39:28,730 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-04 16:39:28,730 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-04 16:39:28,730 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-04 16:39:28,730 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-04 16:39:28,730 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-04 16:39:28,731 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-04 16:39:28,731 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2020-09-04 16:39:28,731 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-04 16:39:28,731 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-04 16:39:28,731 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2020-09-04 16:39:28,731 INFO L130 BoogieDeclarations]: Found specification of procedure fstat [2020-09-04 16:39:28,732 INFO L130 BoogieDeclarations]: Found specification of procedure fstatat [2020-09-04 16:39:28,732 INFO L130 BoogieDeclarations]: Found specification of procedure lstat [2020-09-04 16:39:28,732 INFO L130 BoogieDeclarations]: Found specification of procedure chmod [2020-09-04 16:39:28,732 INFO L130 BoogieDeclarations]: Found specification of procedure lchmod [2020-09-04 16:39:28,732 INFO L130 BoogieDeclarations]: Found specification of procedure fchmod [2020-09-04 16:39:28,732 INFO L130 BoogieDeclarations]: Found specification of procedure fchmodat [2020-09-04 16:39:28,733 INFO L130 BoogieDeclarations]: Found specification of procedure umask [2020-09-04 16:39:28,733 INFO L130 BoogieDeclarations]: Found specification of procedure mkdir [2020-09-04 16:39:28,733 INFO L130 BoogieDeclarations]: Found specification of procedure mkdirat [2020-09-04 16:39:28,733 INFO L130 BoogieDeclarations]: Found specification of procedure mknod [2020-09-04 16:39:28,733 INFO L130 BoogieDeclarations]: Found specification of procedure mknodat [2020-09-04 16:39:28,733 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifo [2020-09-04 16:39:28,734 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifoat [2020-09-04 16:39:28,734 INFO L130 BoogieDeclarations]: Found specification of procedure utimensat [2020-09-04 16:39:28,734 INFO L130 BoogieDeclarations]: Found specification of procedure futimens [2020-09-04 16:39:28,734 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstat [2020-09-04 16:39:28,734 INFO L130 BoogieDeclarations]: Found specification of procedure __xstat [2020-09-04 16:39:28,734 INFO L130 BoogieDeclarations]: Found specification of procedure __lxstat [2020-09-04 16:39:28,735 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstatat [2020-09-04 16:39:28,735 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknod [2020-09-04 16:39:28,735 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknodat [2020-09-04 16:39:28,735 INFO L130 BoogieDeclarations]: Found specification of procedure fcntl [2020-09-04 16:39:28,735 INFO L130 BoogieDeclarations]: Found specification of procedure open [2020-09-04 16:39:28,735 INFO L130 BoogieDeclarations]: Found specification of procedure openat [2020-09-04 16:39:28,736 INFO L130 BoogieDeclarations]: Found specification of procedure openat64 [2020-09-04 16:39:28,736 INFO L130 BoogieDeclarations]: Found specification of procedure creat [2020-09-04 16:39:28,736 INFO L130 BoogieDeclarations]: Found specification of procedure lockf [2020-09-04 16:39:28,736 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fadvise [2020-09-04 16:39:28,736 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fallocate [2020-09-04 16:39:28,736 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-09-04 16:39:28,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 16:39:28,737 INFO L130 BoogieDeclarations]: Found specification of procedure l_read [2020-09-04 16:39:28,737 INFO L130 BoogieDeclarations]: Found specification of procedure l_open [2020-09-04 16:39:28,737 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 16:39:28,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 16:39:28,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 16:39:28,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 16:39:28,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 16:39:28,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 16:39:29,472 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 16:39:29,472 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 16:39:29,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:39:29 BoogieIcfgContainer [2020-09-04 16:39:29,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 16:39:29,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 16:39:29,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 16:39:29,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 16:39:29,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 04:39:27" (1/3) ... [2020-09-04 16:39:29,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c36ae02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:39:29, skipping insertion in model container [2020-09-04 16:39:29,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:28" (2/3) ... [2020-09-04 16:39:29,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c36ae02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:39:29, skipping insertion in model container [2020-09-04 16:39:29,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:39:29" (3/3) ... [2020-09-04 16:39:29,502 INFO L109 eAbstractionObserver]: Analyzing ICFG fo_test.i [2020-09-04 16:39:29,518 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 16:39:29,536 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 16:39:29,565 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 16:39:29,593 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 16:39:29,594 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 16:39:29,594 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 16:39:29,594 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 16:39:29,594 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 16:39:29,594 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 16:39:29,594 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 16:39:29,594 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 16:39:29,611 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2020-09-04 16:39:29,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-04 16:39:29,626 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:39:29,628 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] [2020-09-04 16:39:29,628 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:39:29,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:39:29,636 INFO L82 PathProgramCache]: Analyzing trace with hash 86369829, now seen corresponding path program 1 times [2020-09-04 16:39:29,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:39:29,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [843549958] [2020-09-04 16:39:29,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:39:29,745 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:39:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 16:39:29,851 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 16:39:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 16:39:29,890 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 16:39:29,953 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 16:39:29,953 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 16:39:29,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 16:39:29,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 04:39:29 BoogieIcfgContainer [2020-09-04 16:39:29,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 16:39:29,982 INFO L168 Benchmark]: Toolchain (without parser) took 2432.95 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 100.4 MB in the beginning and 98.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 65.9 MB. Max. memory is 7.1 GB. [2020-09-04 16:39:29,983 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 137.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 16:39:29,985 INFO L168 Benchmark]: CACSL2BoogieTranslator took 984.49 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 100.2 MB in the beginning and 165.1 MB in the end (delta: -64.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2020-09-04 16:39:29,986 INFO L168 Benchmark]: Boogie Preprocessor took 91.62 ms. Allocated memory is still 201.3 MB. Free memory was 165.1 MB in the beginning and 162.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-04 16:39:29,987 INFO L168 Benchmark]: RCFGBuilder took 854.51 ms. Allocated memory is still 201.3 MB. Free memory was 162.4 MB in the beginning and 115.1 MB in the end (delta: 47.4 MB). Peak memory consumption was 47.4 MB. Max. memory is 7.1 GB. [2020-09-04 16:39:29,988 INFO L168 Benchmark]: TraceAbstraction took 490.78 ms. Allocated memory is still 201.3 MB. Free memory was 114.4 MB in the beginning and 98.0 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. [2020-09-04 16:39:29,992 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 137.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 984.49 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 100.2 MB in the beginning and 165.1 MB in the end (delta: -64.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.62 ms. Allocated memory is still 201.3 MB. Free memory was 165.1 MB in the beginning and 162.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 854.51 ms. Allocated memory is still 201.3 MB. Free memory was 162.4 MB in the beginning and 115.1 MB in the end (delta: 47.4 MB). Peak memory consumption was 47.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 490.78 ms. Allocated memory is still 201.3 MB. Free memory was 114.4 MB in the beginning and 98.0 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 960]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 1158. Possible FailurePath: [L1152] int globalState = 0; [L1158] CALL, EXPR l_open("unknown",00) [L1170] int fd = open(file,flags); [L1171] COND FALSE !(fd>0) [L1172] return fd; [L1158] RET, EXPR l_open("unknown",00) [L1158] int file = l_open("unknown",00); [L1159] void* cbuf = (void*) malloc(sizeof(char)*100); [L1160] CALL l_read(file,cbuf,99) [L1165] (globalState == 1) ? (0) : __blast_assert () [L1165] CALL __blast_assert () [L960] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...