/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 00:58:20,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 00:58:20,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 00:58:20,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 00:58:20,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 00:58:20,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 00:58:20,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 00:58:20,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 00:58:20,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 00:58:20,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 00:58:20,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 00:58:20,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 00:58:20,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 00:58:20,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 00:58:20,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 00:58:20,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 00:58:20,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 00:58:20,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 00:58:20,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 00:58:20,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 00:58:20,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 00:58:20,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 00:58:20,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 00:58:20,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 00:58:20,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 00:58:20,460 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 00:58:20,460 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 00:58:20,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 00:58:20,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 00:58:20,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 00:58:20,462 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 00:58:20,463 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 00:58:20,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 00:58:20,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 00:58:20,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 00:58:20,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 00:58:20,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 00:58:20,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 00:58:20,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 00:58:20,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 00:58:20,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 00:58:20,468 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 [2023-04-02 00:58:20,488 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 00:58:20,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 00:58:20,489 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 00:58:20,489 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 00:58:20,490 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 00:58:20,490 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 00:58:20,490 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 00:58:20,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 00:58:20,490 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 00:58:20,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 00:58:20,491 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 00:58:20,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 00:58:20,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 00:58:20,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 00:58:20,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 00:58:20,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 00:58:20,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 00:58:20,492 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 00:58:20,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 00:58:20,492 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 00:58:20,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 00:58:20,492 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 00:58:20,492 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 00:58:20,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 00:58:20,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 00:58:20,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 00:58:20,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 00:58:20,493 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 00:58:20,493 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 00:58:20,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 00:58:20,493 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 00:58:20,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 00:58:20,494 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 00:58:20,494 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 00:58:20,494 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 00:58:20,494 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 00:58:20,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 00:58:20,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 00:58:20,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 00:58:20,755 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 00:58:20,755 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 00:58:20,757 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i [2023-04-02 00:58:21,968 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 00:58:22,296 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 00:58:22,297 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i [2023-04-02 00:58:22,309 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca60dd1cf/366b238967ff43ee800c471f3406d5c2/FLAG4576c0070 [2023-04-02 00:58:22,320 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca60dd1cf/366b238967ff43ee800c471f3406d5c2 [2023-04-02 00:58:22,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 00:58:22,324 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 00:58:22,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 00:58:22,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 00:58:22,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 00:58:22,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 12:58:22" (1/1) ... [2023-04-02 00:58:22,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a0fbc71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:58:22, skipping insertion in model container [2023-04-02 00:58:22,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 12:58:22" (1/1) ... [2023-04-02 00:58:22,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 00:58:22,387 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 00:58:22,632 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i[22617,22630] [2023-04-02 00:58:22,638 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 00:58:22,647 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 00:58:22,697 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i[22617,22630] [2023-04-02 00:58:22,699 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 00:58:22,722 INFO L208 MainTranslator]: Completed translation [2023-04-02 00:58:22,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:58:22 WrapperNode [2023-04-02 00:58:22,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 00:58:22,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 00:58:22,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 00:58:22,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 00:58:22,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:58:22" (1/1) ... [2023-04-02 00:58:22,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:58:22" (1/1) ... [2023-04-02 00:58:22,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:58:22" (1/1) ... [2023-04-02 00:58:22,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:58:22" (1/1) ... [2023-04-02 00:58:22,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:58:22" (1/1) ... [2023-04-02 00:58:22,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:58:22" (1/1) ... [2023-04-02 00:58:22,766 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:58:22" (1/1) ... [2023-04-02 00:58:22,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:58:22" (1/1) ... [2023-04-02 00:58:22,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 00:58:22,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 00:58:22,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 00:58:22,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 00:58:22,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:58:22" (1/1) ... [2023-04-02 00:58:22,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 00:58:22,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 00:58:22,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 00:58:22,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 00:58:22,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 00:58:22,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 00:58:22,852 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 00:58:22,852 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 00:58:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2023-04-02 00:58:22,853 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2023-04-02 00:58:22,853 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2023-04-02 00:58:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2023-04-02 00:58:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2023-04-02 00:58:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2023-04-02 00:58:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2023-04-02 00:58:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2023-04-02 00:58:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2023-04-02 00:58:22,857 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-04-02 00:58:22,858 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2023-04-02 00:58:22,858 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2023-04-02 00:58:22,858 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2023-04-02 00:58:22,858 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-04-02 00:58:22,858 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2023-04-02 00:58:22,858 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2023-04-02 00:58:22,858 INFO L130 BoogieDeclarations]: Found specification of procedure select [2023-04-02 00:58:22,858 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2023-04-02 00:58:22,859 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2023-04-02 00:58:22,859 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2023-04-02 00:58:22,859 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2023-04-02 00:58:22,859 INFO L130 BoogieDeclarations]: Found specification of procedure random [2023-04-02 00:58:22,859 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2023-04-02 00:58:22,859 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2023-04-02 00:58:22,859 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2023-04-02 00:58:22,859 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2023-04-02 00:58:22,860 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2023-04-02 00:58:22,860 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2023-04-02 00:58:22,860 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2023-04-02 00:58:22,860 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2023-04-02 00:58:22,860 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2023-04-02 00:58:22,860 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2023-04-02 00:58:22,860 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2023-04-02 00:58:22,860 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2023-04-02 00:58:22,860 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2023-04-02 00:58:22,861 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2023-04-02 00:58:22,861 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2023-04-02 00:58:22,861 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2023-04-02 00:58:22,861 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2023-04-02 00:58:22,861 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2023-04-02 00:58:22,861 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2023-04-02 00:58:22,861 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2023-04-02 00:58:22,861 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2023-04-02 00:58:22,861 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2023-04-02 00:58:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2023-04-02 00:58:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2023-04-02 00:58:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2023-04-02 00:58:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2023-04-02 00:58:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2023-04-02 00:58:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2023-04-02 00:58:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 00:58:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-02 00:58:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2023-04-02 00:58:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 00:58:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2023-04-02 00:58:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2023-04-02 00:58:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2023-04-02 00:58:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2023-04-02 00:58:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2023-04-02 00:58:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 00:58:22,864 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2023-04-02 00:58:22,864 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2023-04-02 00:58:22,864 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2023-04-02 00:58:22,864 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 00:58:22,864 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2023-04-02 00:58:22,864 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2023-04-02 00:58:22,864 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2023-04-02 00:58:22,864 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2023-04-02 00:58:22,864 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2023-04-02 00:58:22,865 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2023-04-02 00:58:22,865 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2023-04-02 00:58:22,865 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2023-04-02 00:58:22,865 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2023-04-02 00:58:22,865 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2023-04-02 00:58:22,865 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2023-04-02 00:58:22,865 INFO L130 BoogieDeclarations]: Found specification of procedure system [2023-04-02 00:58:22,865 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2023-04-02 00:58:22,865 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2023-04-02 00:58:22,866 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2023-04-02 00:58:22,866 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2023-04-02 00:58:22,866 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2023-04-02 00:58:22,866 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2023-04-02 00:58:22,866 INFO L130 BoogieDeclarations]: Found specification of procedure div [2023-04-02 00:58:22,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2023-04-02 00:58:22,866 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2023-04-02 00:58:22,866 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2023-04-02 00:58:22,867 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2023-04-02 00:58:22,867 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2023-04-02 00:58:22,867 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2023-04-02 00:58:22,867 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2023-04-02 00:58:22,867 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2023-04-02 00:58:22,867 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2023-04-02 00:58:22,867 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2023-04-02 00:58:22,867 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2023-04-02 00:58:22,867 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2023-04-02 00:58:22,868 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2023-04-02 00:58:22,868 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2023-04-02 00:58:22,868 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2023-04-02 00:58:22,868 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2023-04-02 00:58:22,868 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2023-04-02 00:58:22,868 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2023-04-02 00:58:22,868 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2023-04-02 00:58:22,868 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2023-04-02 00:58:22,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 00:58:22,869 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 00:58:22,869 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-02 00:58:22,869 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-02 00:58:22,869 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 00:58:22,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 00:58:22,869 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 00:58:22,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 00:58:22,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 00:58:22,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 00:58:22,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 00:58:22,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 00:58:22,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 00:58:22,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 00:58:22,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 00:58:22,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 00:58:23,209 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 00:58:23,211 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 00:58:23,432 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 00:58:23,437 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 00:58:23,437 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-04-02 00:58:23,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 12:58:23 BoogieIcfgContainer [2023-04-02 00:58:23,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 00:58:23,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 00:58:23,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 00:58:23,443 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 00:58:23,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 12:58:22" (1/3) ... [2023-04-02 00:58:23,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e585c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 12:58:23, skipping insertion in model container [2023-04-02 00:58:23,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:58:22" (2/3) ... [2023-04-02 00:58:23,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e585c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 12:58:23, skipping insertion in model container [2023-04-02 00:58:23,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 12:58:23" (3/3) ... [2023-04-02 00:58:23,445 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-simple-white-blue-2.i [2023-04-02 00:58:23,461 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 00:58:23,461 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 00:58:23,504 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 00:58:23,509 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4edd4573, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 00:58:23,509 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 00:58:23,512 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 25 states have (on average 1.68) internal successors, (42), 26 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-02 00:58:23,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-04-02 00:58:23,517 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 00:58:23,517 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 00:58:23,518 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 00:58:23,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 00:58:23,522 INFO L85 PathProgramCache]: Analyzing trace with hash 411772385, now seen corresponding path program 1 times [2023-04-02 00:58:23,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 00:58:23,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846512413] [2023-04-02 00:58:23,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 00:58:23,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 00:58:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:58:23,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 00:58:23,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:58:23,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 00:58:23,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 00:58:23,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846512413] [2023-04-02 00:58:23,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846512413] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 00:58:23,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 00:58:23,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 00:58:23,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548348091] [2023-04-02 00:58:23,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 00:58:23,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 00:58:23,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 00:58:23,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 00:58:23,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 00:58:23,820 INFO L87 Difference]: Start difference. First operand has 31 states, 25 states have (on average 1.68) internal successors, (42), 26 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 00:58:24,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 00:58:24,010 INFO L93 Difference]: Finished difference Result 53 states and 80 transitions. [2023-04-02 00:58:24,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 00:58:24,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-04-02 00:58:24,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 00:58:24,023 INFO L225 Difference]: With dead ends: 53 [2023-04-02 00:58:24,023 INFO L226 Difference]: Without dead ends: 23 [2023-04-02 00:58:24,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 00:58:24,029 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 29 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 00:58:24,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 10 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 00:58:24,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-04-02 00:58:24,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-04-02 00:58:24,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 00:58:24,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2023-04-02 00:58:24,055 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 15 [2023-04-02 00:58:24,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 00:58:24,055 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2023-04-02 00:58:24,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 00:58:24,055 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2023-04-02 00:58:24,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-04-02 00:58:24,056 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 00:58:24,056 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 00:58:24,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 00:58:24,056 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 00:58:24,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 00:58:24,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1185415029, now seen corresponding path program 1 times [2023-04-02 00:58:24,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 00:58:24,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903503074] [2023-04-02 00:58:24,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 00:58:24,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 00:58:24,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 00:58:24,112 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 00:58:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 00:58:24,173 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-02 00:58:24,173 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 00:58:24,175 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 00:58:24,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 00:58:24,179 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-02 00:58:24,182 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 00:58:24,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 12:58:24 BoogieIcfgContainer [2023-04-02 00:58:24,197 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 00:58:24,198 INFO L158 Benchmark]: Toolchain (without parser) took 1873.76ms. Allocated memory was 176.2MB in the beginning and 259.0MB in the end (delta: 82.8MB). Free memory was 138.3MB in the beginning and 213.5MB in the end (delta: -75.2MB). Peak memory consumption was 7.4MB. Max. memory is 8.0GB. [2023-04-02 00:58:24,198 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 176.2MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 00:58:24,199 INFO L158 Benchmark]: CACSL2BoogieTranslator took 397.77ms. Allocated memory is still 176.2MB. Free memory was 138.3MB in the beginning and 120.9MB in the end (delta: 17.4MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-04-02 00:58:24,199 INFO L158 Benchmark]: Boogie Preprocessor took 48.45ms. Allocated memory is still 176.2MB. Free memory was 120.9MB in the beginning and 118.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-02 00:58:24,200 INFO L158 Benchmark]: RCFGBuilder took 666.20ms. Allocated memory is still 176.2MB. Free memory was 118.2MB in the beginning and 94.3MB in the end (delta: 23.9MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-04-02 00:58:24,200 INFO L158 Benchmark]: TraceAbstraction took 756.74ms. Allocated memory was 176.2MB in the beginning and 259.0MB in the end (delta: 82.8MB). Free memory was 93.7MB in the beginning and 213.5MB in the end (delta: -119.8MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 00:58:24,202 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 176.2MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 397.77ms. Allocated memory is still 176.2MB. Free memory was 138.3MB in the beginning and 120.9MB in the end (delta: 17.4MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 48.45ms. Allocated memory is still 176.2MB. Free memory was 120.9MB in the beginning and 118.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 666.20ms. Allocated memory is still 176.2MB. Free memory was 118.2MB in the beginning and 94.3MB in the end (delta: 23.9MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * TraceAbstraction took 756.74ms. Allocated memory was 176.2MB in the beginning and 259.0MB in the end (delta: 82.8MB). Free memory was 93.7MB in the beginning and 213.5MB in the end (delta: -119.8MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1053]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L999] SLL* head = malloc(sizeof(SLL)); [L1000] head->next = ((void*)0) [L1001] head->data = 0 [L1003] SLL* x = head; VAL [head={-1:0}, x={-1:0}] [L1006] COND FALSE !(__VERIFIER_nondet_int()) [L1016] COND TRUE __VERIFIER_nondet_int() [L1017] x = malloc(sizeof(SLL)) [L1018] x->data = 1 [L1019] x->next = head [L1020] head = x VAL [head={-2:0}, x={-2:0}] [L1040] x = head VAL [head={-2:0}, x={-2:0}] [L1043] EXPR x->data VAL [head={-2:0}, x->data=1, x={-2:0}] [L1043] COND FALSE !(x->data != 1) [L1049] EXPR x->next [L1049] x = x->next [L1050] COND TRUE \read(*x) [L1052] EXPR x->data VAL [head={-2:0}, x->data=0, x={-1:0}] [L1052] COND TRUE x->data != 1 [L1053] reach_error() VAL [head={-2:0}, x={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 7 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 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 proved your program to be incorrect! [2023-04-02 00:58:24,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...