/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/ldv-sets/test_add-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 01:02:35,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 01:02:35,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 01:02:35,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-04-02 01:02:35,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 01:02:35,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 01:02:35,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 01:02:35,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 01:02:35,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 01:02:35,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 01:02:35,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 01:02:35,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 01:02:35,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 01:02:35,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 01:02:35,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 01:02:35,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 01:02:35,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-02 01:02:35,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 01:02:35,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 01:02:35,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 01:02:35,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 01:02:35,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 01:02:35,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 01:02:35,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 01:02:35,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 01:02:35,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 01:02:35,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 01:02:35,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 01:02:35,155 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 01:02:35,182 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 01:02:35,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 01:02:35,183 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 01:02:35,183 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 01:02:35,184 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 01:02:35,184 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 01:02:35,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 01:02:35,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 01:02:35,185 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 01:02:35,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 01:02:35,186 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 01:02:35,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 01:02:35,187 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 01:02:35,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 01:02:35,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 01:02:35,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 01:02:35,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 01:02:35,187 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 01:02:35,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 01:02:35,188 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 01:02:35,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 01:02:35,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 01:02:35,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 01:02:35,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 01:02:35,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 01:02:35,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 01:02:35,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 01:02:35,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 01:02:35,189 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 01:02:35,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 01:02:35,190 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 01:02:35,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 01:02:35,190 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 01:02:35,190 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 01:02:35,190 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 01:02:35,191 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 01:02:35,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 01:02:35,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 01:02:35,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 01:02:35,463 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 01:02:35,464 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 01:02:35,465 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-sets/test_add-1.i [2023-04-02 01:02:36,595 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 01:02:36,841 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 01:02:36,841 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_add-1.i [2023-04-02 01:02:36,854 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbd396cf2/c697b9eb81b3471fa34dc70b50829011/FLAG325fe93e8 [2023-04-02 01:02:36,867 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbd396cf2/c697b9eb81b3471fa34dc70b50829011 [2023-04-02 01:02:36,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 01:02:36,871 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 01:02:36,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 01:02:36,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 01:02:36,891 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 01:02:36,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 01:02:36" (1/1) ... [2023-04-02 01:02:36,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@748f9921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:36, skipping insertion in model container [2023-04-02 01:02:36,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 01:02:36" (1/1) ... [2023-04-02 01:02:36,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 01:02:36,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 01:02:37,281 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/ldv-sets/test_add-1.i[25792,25805] [2023-04-02 01:02:37,285 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 01:02:37,296 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 01:02:37,339 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/ldv-sets/test_add-1.i[25792,25805] [2023-04-02 01:02:37,340 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 01:02:37,366 INFO L208 MainTranslator]: Completed translation [2023-04-02 01:02:37,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:37 WrapperNode [2023-04-02 01:02:37,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 01:02:37,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 01:02:37,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 01:02:37,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 01:02:37,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:37" (1/1) ... [2023-04-02 01:02:37,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:37" (1/1) ... [2023-04-02 01:02:37,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:37" (1/1) ... [2023-04-02 01:02:37,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:37" (1/1) ... [2023-04-02 01:02:37,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:37" (1/1) ... [2023-04-02 01:02:37,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:37" (1/1) ... [2023-04-02 01:02:37,422 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:37" (1/1) ... [2023-04-02 01:02:37,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:37" (1/1) ... [2023-04-02 01:02:37,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 01:02:37,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 01:02:37,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 01:02:37,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 01:02:37,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:37" (1/1) ... [2023-04-02 01:02:37,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 01:02:37,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 01:02:37,467 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 01:02:37,492 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 01:02:37,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 01:02:37,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 01:02:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2023-04-02 01:02:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2023-04-02 01:02:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 01:02:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 01:02:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-02 01:02:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2023-04-02 01:02:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2023-04-02 01:02:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2023-04-02 01:02:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2023-04-02 01:02:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2023-04-02 01:02:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2023-04-02 01:02:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2023-04-02 01:02:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2023-04-02 01:02:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2023-04-02 01:02:37,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2023-04-02 01:02:37,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2023-04-02 01:02:37,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2023-04-02 01:02:37,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2023-04-02 01:02:37,515 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2023-04-02 01:02:37,515 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 01:02:37,515 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2023-04-02 01:02:37,515 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2023-04-02 01:02:37,515 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2023-04-02 01:02:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2023-04-02 01:02:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2023-04-02 01:02:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2023-04-02 01:02:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2023-04-02 01:02:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2023-04-02 01:02:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2023-04-02 01:02:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2023-04-02 01:02:37,516 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2023-04-02 01:02:37,517 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-04-02 01:02:37,517 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2023-04-02 01:02:37,517 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2023-04-02 01:02:37,517 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2023-04-02 01:02:37,517 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-04-02 01:02:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2023-04-02 01:02:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2023-04-02 01:02:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure select [2023-04-02 01:02:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2023-04-02 01:02:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2023-04-02 01:02:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2023-04-02 01:02:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2023-04-02 01:02:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure random [2023-04-02 01:02:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2023-04-02 01:02:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2023-04-02 01:02:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2023-04-02 01:02:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2023-04-02 01:02:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2023-04-02 01:02:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2023-04-02 01:02:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2023-04-02 01:02:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2023-04-02 01:02:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2023-04-02 01:02:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2023-04-02 01:02:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2023-04-02 01:02:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2023-04-02 01:02:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2023-04-02 01:02:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2023-04-02 01:02:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2023-04-02 01:02:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2023-04-02 01:02:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2023-04-02 01:02:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2023-04-02 01:02:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2023-04-02 01:02:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2023-04-02 01:02:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2023-04-02 01:02:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2023-04-02 01:02:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2023-04-02 01:02:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2023-04-02 01:02:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2023-04-02 01:02:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2023-04-02 01:02:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2023-04-02 01:02:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2023-04-02 01:02:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 01:02:37,523 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-02 01:02:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2023-04-02 01:02:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 01:02:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2023-04-02 01:02:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2023-04-02 01:02:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2023-04-02 01:02:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2023-04-02 01:02:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 01:02:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2023-04-02 01:02:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2023-04-02 01:02:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 01:02:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2023-04-02 01:02:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2023-04-02 01:02:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2023-04-02 01:02:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2023-04-02 01:02:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2023-04-02 01:02:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2023-04-02 01:02:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2023-04-02 01:02:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2023-04-02 01:02:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2023-04-02 01:02:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2023-04-02 01:02:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure system [2023-04-02 01:02:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2023-04-02 01:02:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2023-04-02 01:02:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2023-04-02 01:02:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2023-04-02 01:02:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2023-04-02 01:02:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2023-04-02 01:02:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure div [2023-04-02 01:02:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2023-04-02 01:02:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2023-04-02 01:02:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2023-04-02 01:02:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2023-04-02 01:02:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2023-04-02 01:02:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2023-04-02 01:02:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2023-04-02 01:02:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2023-04-02 01:02:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2023-04-02 01:02:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2023-04-02 01:02:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2023-04-02 01:02:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2023-04-02 01:02:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2023-04-02 01:02:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2023-04-02 01:02:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2023-04-02 01:02:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2023-04-02 01:02:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2023-04-02 01:02:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2023-04-02 01:02:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2023-04-02 01:02:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2023-04-02 01:02:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 01:02:37,531 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-02 01:02:37,531 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-02 01:02:37,531 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 01:02:37,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 01:02:37,534 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 01:02:37,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 01:02:37,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-02 01:02:37,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 01:02:37,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2023-04-02 01:02:37,540 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2023-04-02 01:02:37,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 01:02:37,540 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2023-04-02 01:02:37,540 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2023-04-02 01:02:37,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2023-04-02 01:02:37,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 01:02:37,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2023-04-02 01:02:37,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2023-04-02 01:02:37,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2023-04-02 01:02:37,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2023-04-02 01:02:37,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2023-04-02 01:02:37,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2023-04-02 01:02:37,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2023-04-02 01:02:37,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2023-04-02 01:02:37,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 01:02:37,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 01:02:37,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 01:02:37,542 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2023-04-02 01:02:37,542 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 01:02:37,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 01:02:37,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 01:02:37,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-02 01:02:37,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 01:02:37,810 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 01:02:37,812 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 01:02:38,131 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 01:02:38,140 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 01:02:38,140 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-04-02 01:02:38,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 01:02:38 BoogieIcfgContainer [2023-04-02 01:02:38,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 01:02:38,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 01:02:38,144 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 01:02:38,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 01:02:38,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 01:02:36" (1/3) ... [2023-04-02 01:02:38,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aaa2944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 01:02:38, skipping insertion in model container [2023-04-02 01:02:38,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:02:37" (2/3) ... [2023-04-02 01:02:38,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aaa2944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 01:02:38, skipping insertion in model container [2023-04-02 01:02:38,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 01:02:38" (3/3) ... [2023-04-02 01:02:38,149 INFO L112 eAbstractionObserver]: Analyzing ICFG test_add-1.i [2023-04-02 01:02:38,162 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 01:02:38,162 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 01:02:38,213 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 01:02:38,219 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;@39c51d43, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 01:02:38,219 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 01:02:38,223 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 36 states have internal predecessors, (41), 10 states have call successors, (10), 9 states have call predecessors, (10), 9 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-04-02 01:02:38,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-04-02 01:02:38,232 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:02:38,232 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:02:38,233 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 01:02:38,238 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:02:38,239 INFO L85 PathProgramCache]: Analyzing trace with hash 96940350, now seen corresponding path program 1 times [2023-04-02 01:02:38,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:02:38,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777656294] [2023-04-02 01:02:38,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:02:38,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:02:38,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:38,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:02:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:38,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 01:02:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:38,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:38,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 01:02:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:38,740 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 01:02:38,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:02:38,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777656294] [2023-04-02 01:02:38,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777656294] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 01:02:38,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769638955] [2023-04-02 01:02:38,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:02:38,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 01:02:38,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 01:02:38,745 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 01:02:38,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 01:02:38,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:38,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 01:02:38,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 01:02:39,005 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:02:39,006 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 01:02:39,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769638955] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:02:39,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 01:02:39,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2023-04-02 01:02:39,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504449416] [2023-04-02 01:02:39,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:02:39,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 01:02:39,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:02:39,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 01:02:39,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 01:02:39,054 INFO L87 Difference]: Start difference. First operand has 56 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 36 states have internal predecessors, (41), 10 states have call successors, (10), 9 states have call predecessors, (10), 9 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-02 01:02:39,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:02:39,106 INFO L93 Difference]: Finished difference Result 100 states and 117 transitions. [2023-04-02 01:02:39,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 01:02:39,108 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 28 [2023-04-02 01:02:39,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:02:39,115 INFO L225 Difference]: With dead ends: 100 [2023-04-02 01:02:39,115 INFO L226 Difference]: Without dead ends: 50 [2023-04-02 01:02:39,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 01:02:39,123 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 01:02:39,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 157 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 01:02:39,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-04-02 01:02:39,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-04-02 01:02:39,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 31 states have (on average 1.096774193548387) internal successors, (34), 32 states have internal predecessors, (34), 10 states have call successors, (10), 9 states have call predecessors, (10), 8 states have return successors, (10), 9 states have call predecessors, (10), 8 states have call successors, (10) [2023-04-02 01:02:39,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2023-04-02 01:02:39,164 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 28 [2023-04-02 01:02:39,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:02:39,165 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2023-04-02 01:02:39,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-02 01:02:39,165 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2023-04-02 01:02:39,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-04-02 01:02:39,168 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:02:39,168 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:02:39,181 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-02 01:02:39,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-04-02 01:02:39,375 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 01:02:39,376 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:02:39,376 INFO L85 PathProgramCache]: Analyzing trace with hash 2082331687, now seen corresponding path program 1 times [2023-04-02 01:02:39,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:02:39,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264741755] [2023-04-02 01:02:39,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:02:39,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:02:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:39,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:02:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:39,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 01:02:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:39,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:39,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 01:02:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:39,558 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-02 01:02:39,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:02:39,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264741755] [2023-04-02 01:02:39,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264741755] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:02:39,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:02:39,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 01:02:39,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209103352] [2023-04-02 01:02:39,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:02:39,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 01:02:39,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:02:39,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 01:02:39,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 01:02:39,568 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-04-02 01:02:39,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:02:39,860 INFO L93 Difference]: Finished difference Result 63 states and 67 transitions. [2023-04-02 01:02:39,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 01:02:39,861 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2023-04-02 01:02:39,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:02:39,864 INFO L225 Difference]: With dead ends: 63 [2023-04-02 01:02:39,864 INFO L226 Difference]: Without dead ends: 57 [2023-04-02 01:02:39,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-04-02 01:02:39,867 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 64 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 01:02:39,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 7 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 01:02:39,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-04-02 01:02:39,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2023-04-02 01:02:39,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 31 states have (on average 1.096774193548387) internal successors, (34), 32 states have internal predecessors, (34), 10 states have call successors, (10), 9 states have call predecessors, (10), 8 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2023-04-02 01:02:39,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2023-04-02 01:02:39,893 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 28 [2023-04-02 01:02:39,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:02:39,894 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2023-04-02 01:02:39,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-04-02 01:02:39,894 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2023-04-02 01:02:39,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-04-02 01:02:39,895 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:02:39,896 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:02:39,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 01:02:39,896 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 01:02:39,896 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:02:39,896 INFO L85 PathProgramCache]: Analyzing trace with hash -638032304, now seen corresponding path program 1 times [2023-04-02 01:02:39,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:02:39,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850549395] [2023-04-02 01:02:39,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:02:39,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:02:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:40,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:02:40,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:40,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 01:02:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:40,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:02:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:40,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 01:02:40,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:40,411 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-02 01:02:40,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:02:40,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850549395] [2023-04-02 01:02:40,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850549395] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 01:02:40,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809902099] [2023-04-02 01:02:40,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:02:40,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 01:02:40,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 01:02:40,417 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 01:02:40,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 01:02:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:02:40,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 37 conjunts are in the unsatisfiable core [2023-04-02 01:02:40,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 01:02:40,923 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 01:02:40,923 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 01:02:40,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809902099] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:02:40,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 01:02:40,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2023-04-02 01:02:40,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657417918] [2023-04-02 01:02:40,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:02:40,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 01:02:40,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:02:40,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 01:02:40,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-04-02 01:02:40,927 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-04-02 01:02:41,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:02:41,180 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2023-04-02 01:02:41,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 01:02:41,181 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 28 [2023-04-02 01:02:41,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:02:41,183 INFO L225 Difference]: With dead ends: 74 [2023-04-02 01:02:41,183 INFO L226 Difference]: Without dead ends: 64 [2023-04-02 01:02:41,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-04-02 01:02:41,185 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 94 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 01:02:41,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 58 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 01:02:41,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-04-02 01:02:41,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 52. [2023-04-02 01:02:41,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 33 states have internal predecessors, (36), 10 states have call successors, (10), 10 states have call predecessors, (10), 8 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-04-02 01:02:41,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2023-04-02 01:02:41,209 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 28 [2023-04-02 01:02:41,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:02:41,210 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2023-04-02 01:02:41,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-04-02 01:02:41,210 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2023-04-02 01:02:41,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-04-02 01:02:41,212 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:02:41,213 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:02:41,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 01:02:41,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-04-02 01:02:41,419 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 01:02:41,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:02:41,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1041531512, now seen corresponding path program 1 times [2023-04-02 01:02:41,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:02:41,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123428598] [2023-04-02 01:02:41,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:02:41,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:02:41,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 01:02:41,470 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 01:02:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 01:02:41,513 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-02 01:02:41,513 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 01:02:41,514 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location fooErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 01:02:41,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 01:02:41,518 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-04-02 01:02:41,521 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 01:02:41,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 01:02:41 BoogieIcfgContainer [2023-04-02 01:02:41,567 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 01:02:41,568 INFO L158 Benchmark]: Toolchain (without parser) took 4697.02ms. Allocated memory was 200.3MB in the beginning and 245.4MB in the end (delta: 45.1MB). Free memory was 158.1MB in the beginning and 156.6MB in the end (delta: 1.5MB). Peak memory consumption was 48.1MB. Max. memory is 8.0GB. [2023-04-02 01:02:41,568 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 200.3MB. Free memory is still 156.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 01:02:41,568 INFO L158 Benchmark]: CACSL2BoogieTranslator took 495.53ms. Allocated memory is still 200.3MB. Free memory was 158.1MB in the beginning and 139.4MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-02 01:02:41,568 INFO L158 Benchmark]: Boogie Preprocessor took 61.30ms. Allocated memory is still 200.3MB. Free memory was 139.4MB in the beginning and 136.1MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-02 01:02:41,569 INFO L158 Benchmark]: RCFGBuilder took 712.27ms. Allocated memory is still 200.3MB. Free memory was 136.1MB in the beginning and 168.2MB in the end (delta: -32.1MB). Peak memory consumption was 28.7MB. Max. memory is 8.0GB. [2023-04-02 01:02:41,569 INFO L158 Benchmark]: TraceAbstraction took 3423.18ms. Allocated memory was 200.3MB in the beginning and 245.4MB in the end (delta: 45.1MB). Free memory was 167.2MB in the beginning and 156.6MB in the end (delta: 10.5MB). Peak memory consumption was 56.1MB. Max. memory is 8.0GB. [2023-04-02 01:02:41,570 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 200.3MB. Free memory is still 156.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 495.53ms. Allocated memory is still 200.3MB. Free memory was 158.1MB in the beginning and 139.4MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 61.30ms. Allocated memory is still 200.3MB. Free memory was 139.4MB in the beginning and 136.1MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 712.27ms. Allocated memory is still 200.3MB. Free memory was 136.1MB in the beginning and 168.2MB in the end (delta: -32.1MB). Peak memory consumption was 28.7MB. Max. memory is 8.0GB. * TraceAbstraction took 3423.18ms. Allocated memory was 200.3MB in the beginning and 245.4MB in the end (delta: 45.1MB). Free memory was 167.2MB in the beginning and 156.6MB in the end (delta: 10.5MB). Peak memory consumption was 56.1MB. 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: 667]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L662] struct ldv_list_head s1 = { &(s1), &(s1) }; VAL [\old(s1)={55:50}, s1={3:0}] [L671] CALL foo() VAL [s1={3:0}] [L665] int j = __VERIFIER_nondet_int(); [L666] CALL ldv_set_add(j, &s1) VAL [\old(new)=0, s1={3:0}, s={3:0}] [L633] CALL, EXPR ldv_is_in_set(new, s) VAL [\old(e)=0, s1={3:0}, s={3:0}] [L651] struct ldv_list_element *m; [L652] EXPR (s)->next [L652] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L652] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [\old(e)=0, __mptr={3:0}, e=0, m={3:-4}, s1={3:0}, s={3:0}, s={3:0}] [L652] COND FALSE !(&m->list != (s)) VAL [\old(e)=0, __mptr={3:0}, e=0, m={3:-4}, s1={3:0}, s={3:0}, s={3:0}] [L657] return 0; VAL [\old(e)=0, \result=0, __mptr={3:0}, e=0, m={3:-4}, s1={3:0}, s={3:0}, s={3:0}] [L633] RET, EXPR ldv_is_in_set(new, s) VAL [\old(new)=0, ldv_is_in_set(new, s)=0, new=0, s1={3:0}, s={3:0}, s={3:0}] [L633] COND TRUE !ldv_is_in_set(new, s) [L634] struct ldv_list_element *le; VAL [\old(new)=0, new=0, s1={3:0}, s={3:0}, s={3:0}] [L635] CALL, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) VAL [\old(size)=12, s1={3:0}] [L576] void *ptr = malloc(size); [L577] CALL assume_abort_if_not(ptr!=0) VAL [\old(cond)=1, s1={3:0}] [L565] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s1={3:0}] [L577] RET assume_abort_if_not(ptr!=0) VAL [\old(size)=12, ptr={5:0}, s1={3:0}, size=12] [L578] return ptr; VAL [\old(size)=12, \result={5:0}, ptr={5:0}, s1={3:0}, size=12] [L635] RET, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) VAL [\old(new)=0, ldv_successful_malloc(sizeof(struct ldv_list_element))={5:0}, new=0, s1={3:0}, s={3:0}, s={3:0}] [L635] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L636] le->e = new VAL [\old(new)=0, le={5:0}, new=0, s1={3:0}, s={3:0}, s={3:0}] [L637] CALL ldv_list_add(&le->list, s) VAL [head={3:0}, new={5:4}, s1={3:0}] [L605] EXPR head->next VAL [head->next={3:0}, head={3:0}, head={3:0}, new={5:4}, new={5:4}, s1={3:0}] [L605] CALL __ldv_list_add(new, head, head->next) VAL [new={5:4}, next={3:0}, prev={3:0}, s1={3:0}] [L593] next->prev = new [L594] new->next = next [L595] new->prev = prev [L596] prev->next = new VAL [new={5:4}, new={5:4}, next={3:0}, next={3:0}, prev={3:0}, prev={3:0}, s1={3:0}] [L605] RET __ldv_list_add(new, head, head->next) VAL [head->next={3:0}, head={3:0}, head={3:0}, new={5:4}, new={5:4}, s1={3:0}] [L637] RET ldv_list_add(&le->list, s) VAL [\old(new)=0, le={5:0}, new=0, s1={3:0}, s={3:0}, s={3:0}] [L666] RET ldv_set_add(j, &s1) VAL [j=0, s1={3:0}] [L667] CALL ldv_is_in_set(j, &s1) VAL [\old(e)=0, s1={3:0}, s={3:0}] [L651] struct ldv_list_element *m; [L652] EXPR (s)->next [L652] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L652] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [\old(e)=0, __mptr={5:4}, e=0, m={5:0}, s1={3:0}, s={3:0}, s={3:0}] [L652] COND TRUE &m->list != (s) [L653] EXPR m->e VAL [\old(e)=0, __mptr={5:4}, e=0, m->e=0, m={5:0}, s1={3:0}, s={3:0}, s={3:0}] [L653] COND TRUE m->e == e [L654] return 1; VAL [\old(e)=0, \result=1, __mptr={5:4}, e=0, m={5:0}, s1={3:0}, s={3:0}, s={3:0}] [L667] RET ldv_is_in_set(j, &s1) VAL [j=0, ldv_is_in_set(j, &s1)=1, s1={3:0}] [L667] COND TRUE ldv_is_in_set(j, &s1) [L667] reach_error() VAL [j=0, s1={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 102 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 163 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 158 mSDsluCounter, 222 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 140 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 290 IncrementalHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 82 mSDtfsCounter, 290 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 73 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 933 SizeOfPredicates, 10 NumberOfNonLiveVariables, 352 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 18/24 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 01:02:41,584 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...