/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/fo_test.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:25:28,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:25:28,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:25:28,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 18:25:28,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 18:25:28,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 18:25:28,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 18:25:28,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 18:25:28,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 18:25:28,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 18:25:28,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 18:25:28,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 18:25:28,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:25:28,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:25:28,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:25:28,338 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:25:28,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:25:28,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:25:28,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:25:28,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:25:28,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:25:28,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:25:28,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:25:28,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:25:28,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 18:25:28,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 18:25:28,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 18:25:28,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 18:25:28,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 18:25:28,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 18:25:28,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 18:25:28,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 18:25:28,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 18:25:28,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 18:25:28,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 18:25:28,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 18:25:28,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 18:25:28,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 18:25:28,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:25:28,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:25:28,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:25:28,416 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-23 18:25:28,467 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:25:28,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:25:28,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:25:28,473 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:25:28,473 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:25:28,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:25:28,473 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:25:28,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:25:28,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:25:28,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:25:28,475 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:25:28,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:25:28,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:25:28,476 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:25:28,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:25:28,476 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:25:28,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:25:28,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:25:28,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:25:28,477 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:25:28,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:25:28,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:25:28,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:25:28,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:25:28,478 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:25:28,479 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:25:28,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:25:28,479 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:25:28,479 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:25:28,479 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:25:28,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:25:28,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:25:28,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:25:28,908 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:25:28,908 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:25:28,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/fo_test.i [2020-10-23 18:25:28,995 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cd69bc4c/59f5132a59c94d5ba94479c43ebe6562/FLAGcf9f5f7ac [2020-10-23 18:25:29,653 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:25:29,654 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/fo_test.i [2020-10-23 18:25:29,676 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cd69bc4c/59f5132a59c94d5ba94479c43ebe6562/FLAGcf9f5f7ac [2020-10-23 18:25:29,914 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cd69bc4c/59f5132a59c94d5ba94479c43ebe6562 [2020-10-23 18:25:29,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:25:29,927 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:25:29,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:25:29,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:25:29,936 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:25:29,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:25:29" (1/1) ... [2020-10-23 18:25:29,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e8a3390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:29, skipping insertion in model container [2020-10-23 18:25:29,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:25:29" (1/1) ... [2020-10-23 18:25:29,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:25:30,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:25:30,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:25:30,389 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:25:30,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:25:30,580 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:25:30,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:30 WrapperNode [2020-10-23 18:25:30,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:25:30,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:25:30,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:25:30,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:25:30,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:30" (1/1) ... [2020-10-23 18:25:30,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:30" (1/1) ... [2020-10-23 18:25:30,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:30" (1/1) ... [2020-10-23 18:25:30,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:30" (1/1) ... [2020-10-23 18:25:30,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:30" (1/1) ... [2020-10-23 18:25:30,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:30" (1/1) ... [2020-10-23 18:25:30,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:30" (1/1) ... [2020-10-23 18:25:30,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:25:30,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:25:30,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:25:30,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:25:30,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:30" (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 18:25:30,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:25:30,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:25:30,722 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:25:30,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-10-23 18:25:30,722 INFO L138 BoogieDeclarations]: Found implementation of procedure open [2020-10-23 18:25:30,722 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:25:30,722 INFO L138 BoogieDeclarations]: Found implementation of procedure l_read [2020-10-23 18:25:30,723 INFO L138 BoogieDeclarations]: Found implementation of procedure l_open [2020-10-23 18:25:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:25:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:25:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:25:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:25:30,723 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-23 18:25:30,724 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-23 18:25:30,724 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-23 18:25:30,724 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-23 18:25:30,724 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-23 18:25:30,724 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-23 18:25:30,724 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-23 18:25:30,725 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-23 18:25:30,725 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-23 18:25:30,725 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-23 18:25:30,725 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-23 18:25:30,725 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-23 18:25:30,725 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-23 18:25:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-23 18:25:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-23 18:25:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-23 18:25:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-23 18:25:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-23 18:25:30,726 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-23 18:25:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-23 18:25:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-23 18:25:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-23 18:25:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-23 18:25:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-23 18:25:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-23 18:25:30,727 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-23 18:25:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-23 18:25:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-23 18:25:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-23 18:25:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-23 18:25:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-23 18:25:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-23 18:25:30,728 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-23 18:25:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-23 18:25:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-23 18:25:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-23 18:25:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-23 18:25:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-23 18:25:30,729 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-23 18:25:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-23 18:25:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-23 18:25:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-23 18:25:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-23 18:25:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-23 18:25:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-23 18:25:30,730 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-23 18:25:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-23 18:25:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-23 18:25:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-23 18:25:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-23 18:25:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 18:25:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-23 18:25:30,731 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-23 18:25:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 18:25:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-23 18:25:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-23 18:25:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-23 18:25:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-23 18:25:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-23 18:25:30,732 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-23 18:25:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 18:25:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-23 18:25:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-23 18:25:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2020-10-23 18:25:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-23 18:25:30,733 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-23 18:25:30,734 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-23 18:25:30,734 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-23 18:25:30,734 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-23 18:25:30,734 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-23 18:25:30,734 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-23 18:25:30,734 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-23 18:25:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-23 18:25:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-23 18:25:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-23 18:25:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-23 18:25:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-23 18:25:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-23 18:25:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-23 18:25:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-23 18:25:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-23 18:25:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-23 18:25:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-23 18:25:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-23 18:25:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-23 18:25:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-23 18:25:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-23 18:25:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-23 18:25:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-23 18:25:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-23 18:25:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-23 18:25:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-23 18:25:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-23 18:25:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-23 18:25:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-23 18:25:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-23 18:25:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-23 18:25:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-23 18:25:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2020-10-23 18:25:30,739 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-23 18:25:30,739 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-10-23 18:25:30,739 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2020-10-23 18:25:30,739 INFO L130 BoogieDeclarations]: Found specification of procedure fstat [2020-10-23 18:25:30,739 INFO L130 BoogieDeclarations]: Found specification of procedure fstatat [2020-10-23 18:25:30,739 INFO L130 BoogieDeclarations]: Found specification of procedure lstat [2020-10-23 18:25:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure chmod [2020-10-23 18:25:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure lchmod [2020-10-23 18:25:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure fchmod [2020-10-23 18:25:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure fchmodat [2020-10-23 18:25:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure umask [2020-10-23 18:25:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure mkdir [2020-10-23 18:25:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure mkdirat [2020-10-23 18:25:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure mknod [2020-10-23 18:25:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure mknodat [2020-10-23 18:25:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifo [2020-10-23 18:25:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure mkfifoat [2020-10-23 18:25:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure utimensat [2020-10-23 18:25:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure futimens [2020-10-23 18:25:30,741 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstat [2020-10-23 18:25:30,742 INFO L130 BoogieDeclarations]: Found specification of procedure __xstat [2020-10-23 18:25:30,742 INFO L130 BoogieDeclarations]: Found specification of procedure __lxstat [2020-10-23 18:25:30,742 INFO L130 BoogieDeclarations]: Found specification of procedure __fxstatat [2020-10-23 18:25:30,742 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknod [2020-10-23 18:25:30,742 INFO L130 BoogieDeclarations]: Found specification of procedure __xmknodat [2020-10-23 18:25:30,742 INFO L130 BoogieDeclarations]: Found specification of procedure fcntl [2020-10-23 18:25:30,743 INFO L130 BoogieDeclarations]: Found specification of procedure open [2020-10-23 18:25:30,743 INFO L130 BoogieDeclarations]: Found specification of procedure openat [2020-10-23 18:25:30,743 INFO L130 BoogieDeclarations]: Found specification of procedure openat64 [2020-10-23 18:25:30,743 INFO L130 BoogieDeclarations]: Found specification of procedure creat [2020-10-23 18:25:30,743 INFO L130 BoogieDeclarations]: Found specification of procedure lockf [2020-10-23 18:25:30,743 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fadvise [2020-10-23 18:25:30,744 INFO L130 BoogieDeclarations]: Found specification of procedure posix_fallocate [2020-10-23 18:25:30,744 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-23 18:25:30,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:25:30,744 INFO L130 BoogieDeclarations]: Found specification of procedure l_read [2020-10-23 18:25:30,744 INFO L130 BoogieDeclarations]: Found specification of procedure l_open [2020-10-23 18:25:30,744 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:25:30,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 18:25:30,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:25:30,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:25:30,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:25:30,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:25:30,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:25:30,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:25:31,326 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:25:31,326 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-23 18:25:31,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:25:31 BoogieIcfgContainer [2020-10-23 18:25:31,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:25:31,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:25:31,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:25:31,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:25:31,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:25:29" (1/3) ... [2020-10-23 18:25:31,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328dc57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:25:31, skipping insertion in model container [2020-10-23 18:25:31,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:25:30" (2/3) ... [2020-10-23 18:25:31,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328dc57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:25:31, skipping insertion in model container [2020-10-23 18:25:31,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:25:31" (3/3) ... [2020-10-23 18:25:31,337 INFO L111 eAbstractionObserver]: Analyzing ICFG fo_test.i [2020-10-23 18:25:31,350 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:25:31,355 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:25:31,369 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:25:31,397 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:25:31,397 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:25:31,397 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:25:31,398 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:25:31,398 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:25:31,398 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:25:31,398 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:25:31,398 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:25:31,417 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-10-23 18:25:31,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-23 18:25:31,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:25:31,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:25:31,425 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:25:31,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:25:31,432 INFO L82 PathProgramCache]: Analyzing trace with hash -214875169, now seen corresponding path program 1 times [2020-10-23 18:25:31,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:25:31,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927069176] [2020-10-23 18:25:31,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:25:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:31,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:25:31,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:31,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:25:31,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:25:31,771 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 18:25:31,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927069176] [2020-10-23 18:25:31,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:25:31,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-23 18:25:31,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437656259] [2020-10-23 18:25:31,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:25:31,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:25:31,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:25:31,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:25:31,799 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-10-23 18:25:31,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:25:31,989 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2020-10-23 18:25:31,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 18:25:31,992 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-23 18:25:31,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:25:32,002 INFO L225 Difference]: With dead ends: 55 [2020-10-23 18:25:32,002 INFO L226 Difference]: Without dead ends: 20 [2020-10-23 18:25:32,006 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:25:32,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-23 18:25:32,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-23 18:25:32,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-23 18:25:32,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2020-10-23 18:25:32,056 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 19 [2020-10-23 18:25:32,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:25:32,056 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2020-10-23 18:25:32,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:25:32,057 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2020-10-23 18:25:32,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-23 18:25:32,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:25:32,058 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:25:32,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:25:32,058 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:25:32,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:25:32,060 INFO L82 PathProgramCache]: Analyzing trace with hash 486189409, now seen corresponding path program 1 times [2020-10-23 18:25:32,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:25:32,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788162105] [2020-10-23 18:25:32,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:25:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 18:25:32,110 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 18:25:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 18:25:32,140 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 18:25:32,199 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-23 18:25:32,199 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 18:25:32,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:25:32,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:25:32 BoogieIcfgContainer [2020-10-23 18:25:32,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:25:32,284 INFO L168 Benchmark]: Toolchain (without parser) took 2361.60 ms. Allocated memory is still 151.0 MB. Free memory was 131.5 MB in the beginning and 69.5 MB in the end (delta: 62.0 MB). Peak memory consumption was 61.7 MB. Max. memory is 8.0 GB. [2020-10-23 18:25:32,285 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:25:32,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.90 ms. Allocated memory is still 151.0 MB. Free memory was 130.9 MB in the beginning and 120.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 14.5 MB. Max. memory is 8.0 GB. [2020-10-23 18:25:32,290 INFO L168 Benchmark]: Boogie Preprocessor took 62.73 ms. Allocated memory is still 151.0 MB. Free memory was 120.2 MB in the beginning and 117.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-23 18:25:32,291 INFO L168 Benchmark]: RCFGBuilder took 682.07 ms. Allocated memory is still 151.0 MB. Free memory was 117.8 MB in the beginning and 124.1 MB in the end (delta: -6.3 MB). Peak memory consumption was 38.8 MB. Max. memory is 8.0 GB. [2020-10-23 18:25:32,292 INFO L168 Benchmark]: TraceAbstraction took 951.17 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 69.5 MB in the end (delta: 54.5 MB). Peak memory consumption was 54.5 MB. Max. memory is 8.0 GB. [2020-10-23 18:25:32,296 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 650.90 ms. Allocated memory is still 151.0 MB. Free memory was 130.9 MB in the beginning and 120.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 14.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 62.73 ms. Allocated memory is still 151.0 MB. Free memory was 120.2 MB in the beginning and 117.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 682.07 ms. Allocated memory is still 151.0 MB. Free memory was 117.8 MB in the beginning and 124.1 MB in the end (delta: -6.3 MB). Peak memory consumption was 38.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 951.17 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 69.5 MB in the end (delta: 54.5 MB). Peak memory consumption was 54.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: 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 1160. Possible FailurePath: [L1154] int globalState = 0; VAL [\old(globalState)=114, globalState=0] [L1160] CALL, EXPR l_open("unknown",00) VAL [\old(flags)=0, \old(globalState)=0, file={4:0}, globalState=0] [L1172] int fd = open(file,flags); VAL [\old(flags)=0, \old(globalState)=0, fd=0, file={4:0}, file={4:0}, flags=0, globalState=0, open(file,flags)=0] [L1173] COND FALSE !(fd>0) VAL [\old(flags)=0, \old(globalState)=0, fd=0, file={4:0}, file={4:0}, flags=0, globalState=0, open(file,flags)=0] [L1174] return fd; VAL [\old(flags)=0, \old(globalState)=0, \result=0, fd=0, file={4:0}, file={4:0}, flags=0, globalState=0, open(file,flags)=0] [L1160] RET, EXPR l_open("unknown",00) VAL [\old(argc)=110, \old(globalState)=0, argc=110, argv={106:102}, argv={106:102}, globalState=0, l_open("unknown",00)=0] [L1160] int file = l_open("unknown",00); [L1161] void* cbuf = (void*) malloc(sizeof(char)*100); VAL [\old(argc)=110, \old(globalState)=0, argc=110, argv={106:102}, argv={106:102}, cbuf={-1:0}, file=0, globalState=0, malloc(sizeof(char)*100)={-1:0}] [L1162] CALL l_read(file,cbuf,99) VAL [\old(count)=99, \old(fd)=0, \old(globalState)=0, cbuf={-1:0}, globalState=0] [L1167] (globalState == 1) ? (0) : __blast_assert () VAL [\old(count)=99, \old(fd)=0, \old(globalState)=0, cbuf={-1:0}, cbuf={-1:0}, count=99, fd=0, globalState=0] [L1167] CALL __blast_assert () VAL [\old(globalState)=0, globalState=0] [L962] CALL reach_error() VAL [\old(globalState)=0, globalState=0] [L3] __assert_fail("0", "fo_test.i", 3, "reach_error") VAL [\old(globalState)=0, globalState=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 35 SDslu, 12 SDs, 0 SdLazy, 32 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 1314 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...