/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/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 21:46:09,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 21:46:09,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 21:46:09,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 21:46:09,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 21:46:09,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 21:46:09,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 21:46:09,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 21:46:09,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 21:46:09,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 21:46:09,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 21:46:09,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 21:46:09,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 21:46:09,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 21:46:09,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 21:46:09,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 21:46:09,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 21:46:09,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 21:46:09,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 21:46:09,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 21:46:09,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 21:46:09,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 21:46:09,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 21:46:09,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 21:46:09,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 21:46:09,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 21:46:09,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 21:46:09,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 21:46:09,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 21:46:09,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 21:46:09,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 21:46:09,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 21:46:09,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 21:46:09,309 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 21:46:09,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 21:46:09,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 21:46:09,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 21:46:09,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 21:46:09,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 21:46:09,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 21:46:09,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 21:46:09,312 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-02 21:46:09,338 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 21:46:09,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 21:46:09,339 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 21:46:09,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 21:46:09,340 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 21:46:09,340 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 21:46:09,340 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-02 21:46:09,340 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-02 21:46:09,340 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-02 21:46:09,340 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-02 21:46:09,341 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-02 21:46:09,341 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-02 21:46:09,341 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-02 21:46:09,341 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-02 21:46:09,341 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-02 21:46:09,341 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-02 21:46:09,341 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-02 21:46:09,342 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-02 21:46:09,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 21:46:09,342 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 21:46:09,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 21:46:09,342 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 21:46:09,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 21:46:09,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 21:46:09,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 21:46:09,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 21:46:09,343 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 21:46:09,343 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 21:46:09,343 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 21:46:09,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 21:46:09,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 21:46:09,344 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 21:46:09,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 21:46:09,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 21:46:09,344 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-02 21:46:09,344 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 21:46:09,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 21:46:09,345 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-02 21:46:09,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 21:46:09,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 21:46:09,345 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-02 21:46:09,345 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-02 21:46:09,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 21:46:09,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 21:46:09,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 21:46:09,577 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 21:46:09,578 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 21:46:09,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i [2023-04-02 21:46:10,588 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 21:46:10,896 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 21:46:10,896 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i [2023-04-02 21:46:10,908 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f4086f6/510f56fb6b664b79824612ee8688523b/FLAGf27695254 [2023-04-02 21:46:10,923 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f4086f6/510f56fb6b664b79824612ee8688523b [2023-04-02 21:46:10,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 21:46:10,926 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 21:46:10,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 21:46:10,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 21:46:10,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 21:46:10,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 09:46:10" (1/1) ... [2023-04-02 21:46:10,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73087c25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:46:10, skipping insertion in model container [2023-04-02 21:46:10,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 09:46:10" (1/1) ... [2023-04-02 21:46:10,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 21:46:10,967 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 21:46:11,164 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/list-simple/dll2n_update_all_reverse.i[24473,24486] [2023-04-02 21:46:11,167 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 21:46:11,175 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 21:46:11,232 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/list-simple/dll2n_update_all_reverse.i[24473,24486] [2023-04-02 21:46:11,232 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 21:46:11,253 INFO L208 MainTranslator]: Completed translation [2023-04-02 21:46:11,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:46:11 WrapperNode [2023-04-02 21:46:11,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 21:46:11,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 21:46:11,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 21:46:11,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 21:46:11,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:46:11" (1/1) ... [2023-04-02 21:46:11,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:46:11" (1/1) ... [2023-04-02 21:46:11,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:46:11" (1/1) ... [2023-04-02 21:46:11,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:46:11" (1/1) ... [2023-04-02 21:46:11,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:46:11" (1/1) ... [2023-04-02 21:46:11,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:46:11" (1/1) ... [2023-04-02 21:46:11,291 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:46:11" (1/1) ... [2023-04-02 21:46:11,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:46:11" (1/1) ... [2023-04-02 21:46:11,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 21:46:11,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 21:46:11,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 21:46:11,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 21:46:11,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:46:11" (1/1) ... [2023-04-02 21:46:11,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 21:46:11,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 21:46:11,322 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 21:46:11,331 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 21:46:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 21:46:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 21:46:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 21:46:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2023-04-02 21:46:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2023-04-02 21:46:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2023-04-02 21:46:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2023-04-02 21:46:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2023-04-02 21:46:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2023-04-02 21:46:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_get_data_at [2023-04-02 21:46:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_update_at [2023-04-02 21:46:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 21:46:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 21:46:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 21:46:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-02 21:46:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-02 21:46:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 21:46:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 21:46:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2023-04-02 21:46:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2023-04-02 21:46:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2023-04-02 21:46:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2023-04-02 21:46:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2023-04-02 21:46:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2023-04-02 21:46:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2023-04-02 21:46:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2023-04-02 21:46:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2023-04-02 21:46:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2023-04-02 21:46:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2023-04-02 21:46:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-04-02 21:46:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2023-04-02 21:46:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2023-04-02 21:46:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2023-04-02 21:46:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-04-02 21:46:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2023-04-02 21:46:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2023-04-02 21:46:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure select [2023-04-02 21:46:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2023-04-02 21:46:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2023-04-02 21:46:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2023-04-02 21:46:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2023-04-02 21:46:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure random [2023-04-02 21:46:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2023-04-02 21:46:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2023-04-02 21:46:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2023-04-02 21:46:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2023-04-02 21:46:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2023-04-02 21:46:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2023-04-02 21:46:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2023-04-02 21:46:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2023-04-02 21:46:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2023-04-02 21:46:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2023-04-02 21:46:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2023-04-02 21:46:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2023-04-02 21:46:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2023-04-02 21:46:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2023-04-02 21:46:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2023-04-02 21:46:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2023-04-02 21:46:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2023-04-02 21:46:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2023-04-02 21:46:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2023-04-02 21:46:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2023-04-02 21:46:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2023-04-02 21:46:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2023-04-02 21:46:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2023-04-02 21:46:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2023-04-02 21:46:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2023-04-02 21:46:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2023-04-02 21:46:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2023-04-02 21:46:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2023-04-02 21:46:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 21:46:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-02 21:46:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2023-04-02 21:46:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 21:46:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2023-04-02 21:46:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2023-04-02 21:46:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2023-04-02 21:46:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2023-04-02 21:46:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2023-04-02 21:46:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2023-04-02 21:46:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2023-04-02 21:46:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2023-04-02 21:46:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 21:46:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2023-04-02 21:46:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2023-04-02 21:46:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2023-04-02 21:46:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2023-04-02 21:46:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2023-04-02 21:46:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2023-04-02 21:46:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2023-04-02 21:46:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2023-04-02 21:46:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2023-04-02 21:46:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2023-04-02 21:46:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2023-04-02 21:46:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure system [2023-04-02 21:46:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2023-04-02 21:46:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2023-04-02 21:46:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2023-04-02 21:46:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2023-04-02 21:46:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2023-04-02 21:46:11,359 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2023-04-02 21:46:11,359 INFO L130 BoogieDeclarations]: Found specification of procedure div [2023-04-02 21:46:11,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2023-04-02 21:46:11,359 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2023-04-02 21:46:11,359 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2023-04-02 21:46:11,359 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2023-04-02 21:46:11,359 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2023-04-02 21:46:11,359 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2023-04-02 21:46:11,359 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2023-04-02 21:46:11,359 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2023-04-02 21:46:11,359 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2023-04-02 21:46:11,359 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2023-04-02 21:46:11,360 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2023-04-02 21:46:11,360 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2023-04-02 21:46:11,360 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2023-04-02 21:46:11,360 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2023-04-02 21:46:11,360 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2023-04-02 21:46:11,360 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2023-04-02 21:46:11,360 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2023-04-02 21:46:11,360 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2023-04-02 21:46:11,360 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2023-04-02 21:46:11,360 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2023-04-02 21:46:11,360 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2023-04-02 21:46:11,360 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2023-04-02 21:46:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 21:46:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 21:46:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 21:46:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2023-04-02 21:46:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2023-04-02 21:46:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 21:46:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 21:46:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure dll_get_data_at [2023-04-02 21:46:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 21:46:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure dll_update_at [2023-04-02 21:46:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 21:46:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 21:46:11,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 21:46:11,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 21:46:11,619 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 21:46:11,621 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 21:46:11,693 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2023-04-02 21:46:11,835 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 21:46:11,876 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 21:46:11,877 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-04-02 21:46:11,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 09:46:11 BoogieIcfgContainer [2023-04-02 21:46:11,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 21:46:11,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 21:46:11,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 21:46:11,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 21:46:11,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 09:46:10" (1/3) ... [2023-04-02 21:46:11,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47eeed66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 09:46:11, skipping insertion in model container [2023-04-02 21:46:11,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 09:46:11" (2/3) ... [2023-04-02 21:46:11,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47eeed66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 09:46:11, skipping insertion in model container [2023-04-02 21:46:11,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 09:46:11" (3/3) ... [2023-04-02 21:46:11,885 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_update_all_reverse.i [2023-04-02 21:46:11,900 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 21:46:11,902 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 21:46:11,939 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 21:46:11,945 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=FINITE_AUTOMATA, 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;@1ed50e92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-02 21:46:11,945 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 21:46:11,948 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-04-02 21:46:11,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-04-02 21:46:11,955 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 21:46:11,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 21:46:11,956 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 21:46:11,960 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 21:46:11,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1770528425, now seen corresponding path program 1 times [2023-04-02 21:46:11,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 21:46:11,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299767764] [2023-04-02 21:46:11,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 21:46:11,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 21:46:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 21:46:12,276 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 21:46:12,277 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 21:46:12,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299767764] [2023-04-02 21:46:12,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299767764] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 21:46:12,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 21:46:12,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 21:46:12,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598056736] [2023-04-02 21:46:12,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 21:46:12,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 21:46:12,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 21:46:12,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 21:46:12,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 21:46:12,317 INFO L87 Difference]: Start difference. First operand has 39 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 5 states, 3 states have (on average 4.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-02 21:46:12,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 21:46:12,444 INFO L93 Difference]: Finished difference Result 69 states and 83 transitions. [2023-04-02 21:46:12,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 21:46:12,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 19 [2023-04-02 21:46:12,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 21:46:12,451 INFO L225 Difference]: With dead ends: 69 [2023-04-02 21:46:12,451 INFO L226 Difference]: Without dead ends: 30 [2023-04-02 21:46:12,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 21:46:12,458 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 16 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 21:46:12,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 112 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 21:46:12,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-04-02 21:46:12,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2023-04-02 21:46:12,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-04-02 21:46:12,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2023-04-02 21:46:12,484 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 19 [2023-04-02 21:46:12,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 21:46:12,485 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2023-04-02 21:46:12,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-02 21:46:12,485 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2023-04-02 21:46:12,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-04-02 21:46:12,487 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 21:46:12,487 INFO L195 NwaCegarLoop]: trace histogram [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 21:46:12,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 21:46:12,487 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 21:46:12,488 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 21:46:12,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1645475918, now seen corresponding path program 1 times [2023-04-02 21:46:12,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 21:46:12,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635585264] [2023-04-02 21:46:12,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 21:46:12,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 21:46:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 21:46:12,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 21:46:12,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 21:46:12,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635585264] [2023-04-02 21:46:12,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635585264] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 21:46:12,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458909846] [2023-04-02 21:46:12,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 21:46:12,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 21:46:12,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 21:46:12,712 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 21:46:12,714 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 21:46:12,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 21:46:12,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 21:46:12,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 21:46:12,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 21:46:12,961 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 21:46:13,054 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 21:46:13,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458909846] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 21:46:13,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [915911613] [2023-04-02 21:46:13,067 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2023-04-02 21:46:13,067 INFO L166 IcfgInterpreter]: Building call graph [2023-04-02 21:46:13,069 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-02 21:46:13,072 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-02 21:46:13,073 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-02 21:46:13,117 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 24 for LOIs [2023-04-02 21:46:13,331 INFO L197 IcfgInterpreter]: Interpreting procedure dll_create with input of size 29 for LOIs [2023-04-02 21:46:13,587 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-04-02 21:46:13,590 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-02 21:46:14,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [915911613] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 21:46:14,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-04-02 21:46:14,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [6, 6, 6] total 24 [2023-04-02 21:46:14,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890986364] [2023-04-02 21:46:14,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 21:46:14,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 21:46:14,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 21:46:14,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 21:46:14,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2023-04-02 21:46:14,027 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 14 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-02 21:46:15,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 21:46:15,194 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2023-04-02 21:46:15,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 21:46:15,194 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 22 [2023-04-02 21:46:15,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 21:46:15,195 INFO L225 Difference]: With dead ends: 42 [2023-04-02 21:46:15,195 INFO L226 Difference]: Without dead ends: 33 [2023-04-02 21:46:15,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=204, Invalid=1128, Unknown=0, NotChecked=0, Total=1332 [2023-04-02 21:46:15,197 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 57 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 21:46:15,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 10 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 21:46:15,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-04-02 21:46:15,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2023-04-02 21:46:15,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-04-02 21:46:15,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2023-04-02 21:46:15,207 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 22 [2023-04-02 21:46:15,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 21:46:15,207 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2023-04-02 21:46:15,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-02 21:46:15,208 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2023-04-02 21:46:15,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-04-02 21:46:15,209 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 21:46:15,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 21:46:15,217 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 21:46:15,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 21:46:15,414 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 21:46:15,416 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 21:46:15,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1452766100, now seen corresponding path program 1 times [2023-04-02 21:46:15,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 21:46:15,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183119890] [2023-04-02 21:46:15,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 21:46:15,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 21:46:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 21:46:15,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-02 21:46:15,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 21:46:15,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183119890] [2023-04-02 21:46:15,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183119890] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 21:46:15,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706651758] [2023-04-02 21:46:15,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 21:46:15,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 21:46:15,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 21:46:15,558 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 21:46:15,562 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 21:46:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 21:46:15,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 21:46:15,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 21:46:15,703 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-02 21:46:15,703 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 21:46:15,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-02 21:46:15,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706651758] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 21:46:15,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2088565628] [2023-04-02 21:46:15,772 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2023-04-02 21:46:15,773 INFO L166 IcfgInterpreter]: Building call graph [2023-04-02 21:46:15,773 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-02 21:46:15,773 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-02 21:46:15,773 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-02 21:46:15,790 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 24 for LOIs [2023-04-02 21:46:15,938 INFO L197 IcfgInterpreter]: Interpreting procedure dll_create with input of size 29 for LOIs [2023-04-02 21:46:16,024 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-04-02 21:46:16,027 INFO L197 IcfgInterpreter]: Interpreting procedure dll_update_at with input of size 28 for LOIs [2023-04-02 21:46:16,030 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-02 21:46:16,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2088565628] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 21:46:16,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-04-02 21:46:16,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6, 6, 6] total 27 [2023-04-02 21:46:16,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046408095] [2023-04-02 21:46:16,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 21:46:16,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 21:46:16,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 21:46:16,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 21:46:16,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2023-04-02 21:46:16,464 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 17 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-04-02 21:46:17,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 21:46:17,480 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2023-04-02 21:46:17,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-02 21:46:17,481 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 28 [2023-04-02 21:46:17,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 21:46:17,481 INFO L225 Difference]: With dead ends: 49 [2023-04-02 21:46:17,481 INFO L226 Difference]: Without dead ends: 34 [2023-04-02 21:46:17,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 550 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=253, Invalid=1553, Unknown=0, NotChecked=0, Total=1806 [2023-04-02 21:46:17,483 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 62 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 21:46:17,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 8 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 21:46:17,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-04-02 21:46:17,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2023-04-02 21:46:17,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-04-02 21:46:17,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2023-04-02 21:46:17,492 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 28 [2023-04-02 21:46:17,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 21:46:17,492 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2023-04-02 21:46:17,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-04-02 21:46:17,492 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2023-04-02 21:46:17,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-04-02 21:46:17,494 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 21:46:17,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 21:46:17,501 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-04-02 21:46:17,699 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 21:46:17,700 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 21:46:17,700 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 21:46:17,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1954906162, now seen corresponding path program 1 times [2023-04-02 21:46:17,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 21:46:17,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593354946] [2023-04-02 21:46:17,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 21:46:17,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 21:46:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 21:46:17,774 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-02 21:46:17,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 21:46:17,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593354946] [2023-04-02 21:46:17,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593354946] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 21:46:17,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724388698] [2023-04-02 21:46:17,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 21:46:17,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 21:46:17,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 21:46:17,775 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 21:46:17,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-02 21:46:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 21:46:17,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 21:46:17,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 21:46:17,922 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-02 21:46:17,922 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 21:46:17,980 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-02 21:46:17,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724388698] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 21:46:17,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [304071630] [2023-04-02 21:46:17,982 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2023-04-02 21:46:17,982 INFO L166 IcfgInterpreter]: Building call graph [2023-04-02 21:46:17,982 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-02 21:46:17,982 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-02 21:46:17,982 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-02 21:46:17,993 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 24 for LOIs [2023-04-02 21:46:18,192 INFO L197 IcfgInterpreter]: Interpreting procedure dll_create with input of size 29 for LOIs [2023-04-02 21:46:18,284 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-04-02 21:46:18,286 INFO L197 IcfgInterpreter]: Interpreting procedure dll_update_at with input of size 30 for LOIs [2023-04-02 21:46:18,310 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-02 21:46:18,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [304071630] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 21:46:18,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-04-02 21:46:18,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [6, 6, 6] total 29 [2023-04-02 21:46:18,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783956245] [2023-04-02 21:46:18,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 21:46:18,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 21:46:18,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 21:46:18,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 21:46:18,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=704, Unknown=0, NotChecked=0, Total=812 [2023-04-02 21:46:18,999 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 19 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 12 states have internal predecessors, (20), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-04-02 21:46:20,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 21:46:20,264 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2023-04-02 21:46:20,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-04-02 21:46:20,265 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 12 states have internal predecessors, (20), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 29 [2023-04-02 21:46:20,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 21:46:20,265 INFO L225 Difference]: With dead ends: 34 [2023-04-02 21:46:20,265 INFO L226 Difference]: Without dead ends: 0 [2023-04-02 21:46:20,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=269, Invalid=1987, Unknown=0, NotChecked=0, Total=2256 [2023-04-02 21:46:20,268 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 37 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 21:46:20,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 9 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 21:46:20,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-02 21:46:20,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-02 21:46:20,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-04-02 21:46:20,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-02 21:46:20,269 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2023-04-02 21:46:20,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 21:46:20,269 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-02 21:46:20,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 12 states have internal predecessors, (20), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-04-02 21:46:20,269 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-02 21:46:20,269 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-02 21:46:20,271 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 21:46:20,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-02 21:46:20,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 21:46:20,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-02 21:46:21,190 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2023-04-02 21:46:21,190 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 12) no Hoare annotation was computed. [2023-04-02 21:46:21,190 INFO L899 garLoopResultBuilder]: For program point dll_destroyEXIT(lines 603 609) no Hoare annotation was computed. [2023-04-02 21:46:21,190 INFO L902 garLoopResultBuilder]: At program point L604-2(lines 604 608) the Hoare annotation is: true [2023-04-02 21:46:21,190 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 603 609) the Hoare annotation is: true [2023-04-02 21:46:21,191 INFO L902 garLoopResultBuilder]: At program point L573(line 573) the Hoare annotation is: true [2023-04-02 21:46:21,191 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 572 574) the Hoare annotation is: true [2023-04-02 21:46:21,191 INFO L899 garLoopResultBuilder]: For program point myexitEXIT(lines 572 574) no Hoare annotation was computed. [2023-04-02 21:46:21,191 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 74 78) no Hoare annotation was computed. [2023-04-02 21:46:21,191 INFO L899 garLoopResultBuilder]: For program point __bswap_32EXIT(lines 74 78) no Hoare annotation was computed. [2023-04-02 21:46:21,191 INFO L902 garLoopResultBuilder]: At program point L611-2(lines 611 614) the Hoare annotation is: true [2023-04-02 21:46:21,191 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 610 616) the Hoare annotation is: true [2023-04-02 21:46:21,191 INFO L899 garLoopResultBuilder]: For program point dll_get_data_atEXIT(lines 610 616) no Hoare annotation was computed. [2023-04-02 21:46:21,191 INFO L899 garLoopResultBuilder]: For program point L577(lines 577 579) no Hoare annotation was computed. [2023-04-02 21:46:21,191 INFO L899 garLoopResultBuilder]: For program point L577-1(lines 577 579) no Hoare annotation was computed. [2023-04-02 21:46:21,191 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 575 584) no Hoare annotation was computed. [2023-04-02 21:46:21,191 INFO L899 garLoopResultBuilder]: For program point node_createEXIT(lines 575 584) no Hoare annotation was computed. [2023-04-02 21:46:21,191 INFO L899 garLoopResultBuilder]: For program point L578(line 578) no Hoare annotation was computed. [2023-04-02 21:46:21,191 INFO L899 garLoopResultBuilder]: For program point dll_update_atEXIT(lines 617 623) no Hoare annotation was computed. [2023-04-02 21:46:21,191 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 617 623) the Hoare annotation is: (or (< |#StackHeapBarrier| (+ |dll_update_at_#in~head.base| 1)) (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (not (= |#NULL.offset| 0)) (not (= (+ |dll_update_at_#in~index| 2) |dll_update_at_#in~data|)) (< 1 |dll_update_at_#in~index|) (not (= |#NULL.base| 0)) (< |#StackHeapBarrier| 1) (not (= 0 |dll_update_at_#in~head.offset|))) [2023-04-02 21:46:21,191 INFO L895 garLoopResultBuilder]: At program point L618-2(lines 618 621) the Hoare annotation is: (or (< |#StackHeapBarrier| (+ |dll_update_at_#in~head.base| 1)) (not (= |#NULL.offset| 0)) (not (= (+ |dll_update_at_#in~index| 2) |dll_update_at_#in~data|)) (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= dll_update_at_~data |dll_update_at_#in~data|) (<= dll_update_at_~index |dll_update_at_#in~index|)) (< 1 |dll_update_at_#in~index|) (not (= |#NULL.base| 0)) (< |#StackHeapBarrier| 1) (not (= 0 |dll_update_at_#in~head.offset|))) [2023-04-02 21:46:21,191 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2023-04-02 21:46:21,192 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-02 21:46:21,192 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 624 643) no Hoare annotation was computed. [2023-04-02 21:46:21,192 INFO L899 garLoopResultBuilder]: For program point mainFINAL(lines 624 643) no Hoare annotation was computed. [2023-04-02 21:46:21,192 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 624 643) the Hoare annotation is: (let ((.cse0 (select |old(#memory_int)| 1))) (or (not (= (select |old(#valid)| 2) 1)) (not (= (select |old(#valid)| 1) 1)) (not (= |#NULL.offset| 0)) (not (= |#NULL.base| 0)) (not (= (select |old(#length)| 1) 2)) (not (= (select |old(#length)| 2) 27)) (not (= (select .cse0 0) 48)) (not (= (select |old(#valid)| 0) 0)) (<= |#StackHeapBarrier| 0) (not (= (select .cse0 1) 0)) (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)))) [2023-04-02 21:46:21,192 INFO L899 garLoopResultBuilder]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 641) no Hoare annotation was computed. [2023-04-02 21:46:21,192 INFO L899 garLoopResultBuilder]: For program point L639(line 639) no Hoare annotation was computed. [2023-04-02 21:46:21,192 INFO L895 garLoopResultBuilder]: At program point L635(line 635) the Hoare annotation is: (let ((.cse0 (select |old(#memory_int)| 1))) (or (not (= (select |old(#valid)| 2) 1)) (not (= (select |old(#valid)| 1) 1)) (not (= |#NULL.offset| 0)) (not (= |#NULL.base| 0)) (not (= (select |old(#length)| 1) 2)) (not (= (select |old(#length)| 2) 27)) (not (= (select .cse0 0) 48)) (not (= (select |old(#valid)| 0) 0)) (<= |#StackHeapBarrier| 0) (not (= (select .cse0 1) 0)))) [2023-04-02 21:46:21,192 INFO L899 garLoopResultBuilder]: For program point L635-1(line 635) no Hoare annotation was computed. [2023-04-02 21:46:21,192 INFO L899 garLoopResultBuilder]: For program point L635-2(lines 635 637) no Hoare annotation was computed. [2023-04-02 21:46:21,192 INFO L895 garLoopResultBuilder]: At program point L631(line 631) the Hoare annotation is: (let ((.cse0 (select |old(#memory_int)| 1))) (or (not (= (select |old(#valid)| 2) 1)) (not (= (select |old(#valid)| 1) 1)) (not (= |#NULL.offset| 0)) (not (= |#NULL.base| 0)) (not (= (select |old(#length)| 1) 2)) (not (= (select |old(#length)| 2) 27)) (not (= (select .cse0 0) 48)) (not (= (select |old(#valid)| 0) 0)) (<= |#StackHeapBarrier| 0) (not (= (select .cse0 1) 0)) (and (= main_~data~0 1) (<= (+ main_~s~0.base 1) |#StackHeapBarrier|) (<= main_~i~0 1) (= main_~len~0 2) (= (+ main_~i~0 2) main_~new_data~0) (= main_~s~0.offset 0)))) [2023-04-02 21:46:21,192 INFO L899 garLoopResultBuilder]: For program point L631-1(lines 629 632) no Hoare annotation was computed. [2023-04-02 21:46:21,192 INFO L895 garLoopResultBuilder]: At program point L633-3(lines 633 638) the Hoare annotation is: (let ((.cse0 (select |old(#memory_int)| 1))) (or (not (= (select |old(#valid)| 2) 1)) (not (= (select |old(#valid)| 1) 1)) (not (= |#NULL.offset| 0)) (and (= main_~data~0 1) (<= (+ main_~s~0.base 1) |#StackHeapBarrier|) (= main_~i~0 1) (= main_~len~0 2) (< main_~new_data~0 3) (= main_~s~0.offset 0)) (not (= |#NULL.base| 0)) (not (= (select |old(#length)| 1) 2)) (not (= (select |old(#length)| 2) 27)) (not (= (select .cse0 0) 48)) (not (= (select |old(#valid)| 0) 0)) (<= |#StackHeapBarrier| 0) (not (= (select .cse0 1) 0)))) [2023-04-02 21:46:21,193 INFO L895 garLoopResultBuilder]: At program point L633-4(lines 633 638) the Hoare annotation is: (let ((.cse0 (select |old(#memory_int)| 1))) (or (not (= (select |old(#valid)| 2) 1)) (not (= (select |old(#valid)| 1) 1)) (not (= |#NULL.offset| 0)) (= main_~len~0 2) (not (= |#NULL.base| 0)) (not (= (select |old(#length)| 1) 2)) (not (= (select |old(#length)| 2) 27)) (not (= (select .cse0 0) 48)) (not (= (select |old(#valid)| 0) 0)) (<= |#StackHeapBarrier| 0) (not (= (select .cse0 1) 0)))) [2023-04-02 21:46:21,193 INFO L895 garLoopResultBuilder]: At program point L627(line 627) the Hoare annotation is: (let ((.cse0 (select |old(#memory_int)| 1))) (or (not (= (select |old(#valid)| 2) 1)) (not (= (select |old(#valid)| 1) 1)) (not (= |#NULL.offset| 0)) (not (= |#NULL.base| 0)) (not (= (select |old(#length)| 1) 2)) (not (= (select |old(#length)| 2) 27)) (not (= (select .cse0 0) 48)) (and (= main_~data~0 1) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= main_~len~0 2) (= |old(#valid)| |#valid|)) (not (= (select |old(#valid)| 0) 0)) (<= |#StackHeapBarrier| 0) (not (= (select .cse0 1) 0)))) [2023-04-02 21:46:21,193 INFO L895 garLoopResultBuilder]: At program point L629-2(lines 629 632) the Hoare annotation is: (let ((.cse3 (select |old(#memory_int)| 1))) (or (not (= (select |old(#valid)| 2) 1)) (not (= (select |old(#valid)| 1) 1)) (not (= |#NULL.offset| 0)) (and (let ((.cse0 (= main_~data~0 1)) (.cse1 (<= (+ main_~s~0.base 1) |#StackHeapBarrier|)) (.cse2 (= main_~s~0.offset 0))) (or (and .cse0 .cse1 (= main_~i~0 1) .cse2) (and .cse0 .cse1 (= (+ main_~i~0 3) main_~new_data~0) (<= main_~new_data~0 3) .cse2))) (= main_~len~0 2)) (not (= |#NULL.base| 0)) (not (= (select |old(#length)| 1) 2)) (not (= (select |old(#length)| 2) 27)) (not (= (select .cse3 0) 48)) (not (= (select |old(#valid)| 0) 0)) (<= |#StackHeapBarrier| 0) (not (= (select .cse3 1) 0)))) [2023-04-02 21:46:21,193 INFO L899 garLoopResultBuilder]: For program point L627-1(line 627) no Hoare annotation was computed. [2023-04-02 21:46:21,193 INFO L895 garLoopResultBuilder]: At program point ERROR(lines 624 643) the Hoare annotation is: (let ((.cse0 (select |old(#memory_int)| 1))) (or (not (= (select |old(#valid)| 2) 1)) (not (= (select |old(#valid)| 1) 1)) (not (= |#NULL.offset| 0)) (not (= |#NULL.base| 0)) (not (= (select |old(#length)| 1) 2)) (not (= (select |old(#length)| 2) 27)) (not (= (select .cse0 0) 48)) (not (= (select |old(#valid)| 0) 0)) (<= |#StackHeapBarrier| 0) (not (= (select .cse0 1) 0)))) [2023-04-02 21:46:21,193 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 79 83) no Hoare annotation was computed. [2023-04-02 21:46:21,193 INFO L899 garLoopResultBuilder]: For program point __bswap_64EXIT(lines 79 83) no Hoare annotation was computed. [2023-04-02 21:46:21,193 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 591) no Hoare annotation was computed. [2023-04-02 21:46:21,193 INFO L899 garLoopResultBuilder]: For program point L589-1(lines 589 591) no Hoare annotation was computed. [2023-04-02 21:46:21,193 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 585 602) the Hoare annotation is: (let ((.cse0 (select |old(#memory_int)| 1))) (or (not (= (select |old(#valid)| 2) 1)) (not (= (select |old(#valid)| 1) 1)) (not (= |#NULL.offset| 0)) (not (= |dll_create_#in~data| 1)) (not (= 2 |dll_create_#in~len|)) (not (= |#NULL.base| 0)) (not (= (select |old(#length)| 1) 2)) (not (= (select |old(#length)| 2) 27)) (not (= (select .cse0 0) 48)) (not (= (select |old(#valid)| 0) 0)) (<= |#StackHeapBarrier| 0) (not (= (select .cse0 1) 0)) (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)))) [2023-04-02 21:46:21,193 INFO L895 garLoopResultBuilder]: At program point L587-2(lines 587 600) the Hoare annotation is: (let ((.cse0 (= dll_create_~head~0.offset 0)) (.cse3 (= dll_create_~data 1)) (.cse1 (= dll_create_~len 2)) (.cse2 (= 0 dll_create_~head~0.base)) (.cse5 (select |old(#memory_int)| 1))) (or (not (= (select |old(#valid)| 2) 1)) (not (= (select |old(#valid)| 1) 1)) (not (= |#NULL.offset| 0)) (let ((.cse4 (select |#memory_int| 1))) (and (or (and .cse0 .cse1 .cse2) (and (= dll_create_~new_head~0.base dll_create_~head~0.base) .cse0 (<= dll_create_~len 1))) (<= (+ dll_create_~new_head~0.base 1) |#StackHeapBarrier|) (= 2 (select |#length| 1)) .cse3 (= dll_create_~new_head~0.offset 0) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse4 0) 48) (= 27 (select |#length| 2)) (= (select .cse4 1) 0))) (not (= |dll_create_#in~data| 1)) (and (= |old(#length)| |#length|) .cse0 (= |#memory_int| |old(#memory_int)|) .cse3 .cse1 (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) .cse2 (= |old(#valid)| |#valid|)) (not (= 2 |dll_create_#in~len|)) (not (= |#NULL.base| 0)) (not (= (select |old(#length)| 1) 2)) (not (= (select |old(#length)| 2) 27)) (not (= (select .cse5 0) 48)) (not (= (select |old(#valid)| 0) 0)) (<= |#StackHeapBarrier| 0) (not (= (select .cse5 1) 0)))) [2023-04-02 21:46:21,194 INFO L899 garLoopResultBuilder]: For program point dll_createEXIT(lines 585 602) no Hoare annotation was computed. [2023-04-02 21:46:21,194 INFO L902 garLoopResultBuilder]: At program point L590(line 590) the Hoare annotation is: true [2023-04-02 21:46:21,194 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-02 21:46:21,194 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= 2 (select |#length| 1)) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= 27 (select |#length| 2)) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2023-04-02 21:46:21,194 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-02 21:46:21,194 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-02 21:46:21,196 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-04-02 21:46:21,197 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 21:46:21,213 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:46:21,214 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:46:21,214 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-04-02 21:46:21,214 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-04-02 21:46:21,221 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:46:21,221 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:46:21,221 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-04-02 21:46:21,221 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-04-02 21:46:21,235 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:46:21,235 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:46:21,235 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-04-02 21:46:21,235 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-04-02 21:46:21,236 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:46:21,236 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:46:21,236 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-04-02 21:46:21,236 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-04-02 21:46:21,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 09:46:21 BoogieIcfgContainer [2023-04-02 21:46:21,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 21:46:21,238 INFO L158 Benchmark]: Toolchain (without parser) took 10312.03ms. Allocated memory was 310.4MB in the beginning and 483.4MB in the end (delta: 173.0MB). Free memory was 272.4MB in the beginning and 339.5MB in the end (delta: -67.1MB). Peak memory consumption was 278.4MB. Max. memory is 8.0GB. [2023-04-02 21:46:21,238 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 204.5MB. Free memory is still 149.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 21:46:21,238 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.89ms. Allocated memory is still 310.4MB. Free memory was 271.9MB in the beginning and 254.6MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-04-02 21:46:21,239 INFO L158 Benchmark]: Boogie Preprocessor took 41.94ms. Allocated memory is still 310.4MB. Free memory was 254.6MB in the beginning and 252.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-02 21:46:21,239 INFO L158 Benchmark]: RCFGBuilder took 582.70ms. Allocated memory is still 310.4MB. Free memory was 252.0MB in the beginning and 224.2MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-04-02 21:46:21,239 INFO L158 Benchmark]: TraceAbstraction took 9356.88ms. Allocated memory was 310.4MB in the beginning and 483.4MB in the end (delta: 173.0MB). Free memory was 223.7MB in the beginning and 339.5MB in the end (delta: -115.9MB). Peak memory consumption was 230.2MB. Max. memory is 8.0GB. [2023-04-02 21:46:21,240 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 204.5MB. Free memory is still 149.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 324.89ms. Allocated memory is still 310.4MB. Free memory was 271.9MB in the beginning and 254.6MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.94ms. Allocated memory is still 310.4MB. Free memory was 254.6MB in the beginning and 252.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 582.70ms. Allocated memory is still 310.4MB. Free memory was 252.0MB in the beginning and 224.2MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 9356.88ms. Allocated memory was 310.4MB in the beginning and 483.4MB in the end (delta: 173.0MB). Free memory was 223.7MB in the beginning and 339.5MB in the end (delta: -115.9MB). Peak memory consumption was 230.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset * 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 - PositiveResult [Line: 641]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 176 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 172 mSDsluCounter, 139 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 98 mSDsCounter, 67 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 789 IncrementalHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 67 mSolverCounterUnsat, 41 mSDtfsCounter, 789 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 306 GetRequests, 174 SyntacticMatches, 6 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1620 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 65, 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, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 38 PreInvPairs, 47 NumberOfFragments, 987 HoareAnnotationTreeSize, 38 FomulaSimplifications, 1245 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 22 FomulaSimplificationsInter, 1132 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 177 NumberOfCodeBlocks, 177 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 246 ConstructedInterpolants, 0 QuantifiedInterpolants, 473 SizeOfPredicates, 3 NumberOfNonLiveVariables, 659 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 9/18 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: OVERALL_TIME: 1.1s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 14, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 60, DAG_INTERPRETER_EARLY_EXITS: 5, TOOLS_POST_APPLICATIONS: 106, TOOLS_POST_TIME: 0.5s, TOOLS_POST_CALL_APPLICATIONS: 33, TOOLS_POST_CALL_TIME: 0.1s, TOOLS_POST_RETURN_APPLICATIONS: 22, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 159, TOOLS_QUANTIFIERELIM_TIME: 0.8s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 269, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 31, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 9, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 19, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 60, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 10, LOOP_SUMMARIZER_CACHE_MISSES: 10, LOOP_SUMMARIZER_OVERALL_TIME: 0.6s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.6s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 19, CALL_SUMMARIZER_APPLICATIONS: 22, CALL_SUMMARIZER_CACHE_MISSES: 8, CALL_SUMMARIZER_OVERALL_TIME: 0.2s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.2s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 836, DAG_COMPRESSION_RETAINED_NODES: 247, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 618]: Loop Invariant [2023-04-02 21:46:21,247 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:46:21,247 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:46:21,247 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-04-02 21:46:21,247 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-04-02 21:46:21,248 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:46:21,248 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:46:21,248 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-04-02 21:46:21,248 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: ((((((unknown-#StackHeapBarrier-unknown < head + 1 || !(#NULL == 0)) || !(\old(index) + 2 == \old(data))) || ((((unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && data == \old(data)) && index <= \old(index))) || 1 < \old(index)) || !(#NULL == 0)) || unknown-#StackHeapBarrier-unknown < 1) || !(0 == head) - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 604]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 633]: Loop Invariant Derived loop invariant: (((((((((!(\old(\valid)[2] == 1) || !(\old(\valid)[1] == 1)) || !(#NULL == 0)) || (((((data == 1 && s + 1 <= unknown-#StackHeapBarrier-unknown) && i == 1) && len == 2) && new_data < 3) && s == 0)) || !(#NULL == 0)) || !(\old(unknown-#length-unknown)[1] == 2)) || !(\old(unknown-#length-unknown)[2] == 27)) || !(\old(unknown-#memory_int-unknown)[1][0] == 48)) || !(\old(\valid)[0] == 0)) || unknown-#StackHeapBarrier-unknown <= 0) || !(\old(unknown-#memory_int-unknown)[1][1] == 0) - InvariantResult [Line: 587]: Loop Invariant [2023-04-02 21:46:21,249 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:46:21,249 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:46:21,249 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-04-02 21:46:21,249 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-04-02 21:46:21,249 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:46:21,250 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-04-02 21:46:21,250 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-04-02 21:46:21,250 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: ((((((((((((!(\old(\valid)[2] == 1) || !(\old(\valid)[1] == 1)) || !(#NULL == 0)) || (((((((((((((head == 0 && len == 2) && 0 == head) || ((new_head == head && head == 0) && len <= 1)) && new_head + 1 <= unknown-#StackHeapBarrier-unknown) && 2 == unknown-#length-unknown[1]) && data == 1) && new_head == 0) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && 27 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0)) || !(\old(data) == 1)) || ((((((((\old(unknown-#length-unknown) == unknown-#length-unknown && head == 0) && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && data == 1) && len == 2) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && 0 == head) && \old(\valid) == \valid)) || !(2 == \old(len))) || !(#NULL == 0)) || !(\old(unknown-#length-unknown)[1] == 2)) || !(\old(unknown-#length-unknown)[2] == 27)) || !(\old(unknown-#memory_int-unknown)[1][0] == 48)) || !(\old(\valid)[0] == 0)) || unknown-#StackHeapBarrier-unknown <= 0) || !(\old(unknown-#memory_int-unknown)[1][1] == 0) - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 624]: Loop Invariant Derived loop invariant: ((((((((!(\old(\valid)[2] == 1) || !(\old(\valid)[1] == 1)) || !(#NULL == 0)) || !(#NULL == 0)) || !(\old(unknown-#length-unknown)[1] == 2)) || !(\old(unknown-#length-unknown)[2] == 27)) || !(\old(unknown-#memory_int-unknown)[1][0] == 48)) || !(\old(\valid)[0] == 0)) || unknown-#StackHeapBarrier-unknown <= 0) || !(\old(unknown-#memory_int-unknown)[1][1] == 0) - InvariantResult [Line: 629]: Loop Invariant Derived loop invariant: (((((((((!(\old(\valid)[2] == 1) || !(\old(\valid)[1] == 1)) || !(#NULL == 0)) || (((((data == 1 && s + 1 <= unknown-#StackHeapBarrier-unknown) && i == 1) && s == 0) || ((((data == 1 && s + 1 <= unknown-#StackHeapBarrier-unknown) && i + 3 == new_data) && new_data <= 3) && s == 0)) && len == 2)) || !(#NULL == 0)) || !(\old(unknown-#length-unknown)[1] == 2)) || !(\old(unknown-#length-unknown)[2] == 27)) || !(\old(unknown-#memory_int-unknown)[1][0] == 48)) || !(\old(\valid)[0] == 0)) || unknown-#StackHeapBarrier-unknown <= 0) || !(\old(unknown-#memory_int-unknown)[1][1] == 0) RESULT: Ultimate proved your program to be correct! [2023-04-02 21:46:21,266 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...