./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-examples/relax-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e8d55036 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-examples/relax-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4fcae0c4d0ca1fc30eac1578cd8b45001717e96b8c9c5f68d5df56e6c4fcd72c --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 21:46:10,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 21:46:10,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 21:46:10,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 21:46:10,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 21:46:10,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 21:46:10,480 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 21:46:10,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 21:46:10,484 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 21:46:10,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 21:46:10,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 21:46:10,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 21:46:10,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 21:46:10,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 21:46:10,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 21:46:10,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 21:46:10,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 21:46:10,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 21:46:10,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 21:46:10,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 21:46:10,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 21:46:10,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 21:46:10,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 21:46:10,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 21:46:10,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 21:46:10,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 21:46:10,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 21:46:10,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 21:46:10,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 21:46:10,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 21:46:10,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 21:46:10,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 21:46:10,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 21:46:10,519 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 21:46:10,519 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 21:46:10,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 21:46:10,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 21:46:10,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 21:46:10,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 21:46:10,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 21:46:10,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 21:46:10,522 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-02-15 21:46:10,545 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 21:46:10,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 21:46:10,547 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 21:46:10,547 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 21:46:10,548 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 21:46:10,548 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 21:46:10,549 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 21:46:10,549 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 21:46:10,549 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 21:46:10,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 21:46:10,550 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 21:46:10,550 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 21:46:10,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 21:46:10,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 21:46:10,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 21:46:10,551 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-15 21:46:10,551 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-15 21:46:10,551 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-15 21:46:10,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 21:46:10,551 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-15 21:46:10,551 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 21:46:10,551 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 21:46:10,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 21:46:10,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 21:46:10,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 21:46:10,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 21:46:10,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 21:46:10,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 21:46:10,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 21:46:10,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 21:46:10,553 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 21:46:10,553 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 21:46:10,553 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 21:46:10,553 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 21:46:10,554 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fcae0c4d0ca1fc30eac1578cd8b45001717e96b8c9c5f68d5df56e6c4fcd72c [2023-02-15 21:46:10,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 21:46:10,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 21:46:10,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 21:46:10,762 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 21:46:10,763 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 21:46:10,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/relax-1.i [2023-02-15 21:46:11,716 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 21:46:11,924 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 21:46:11,925 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/relax-1.i [2023-02-15 21:46:11,933 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30c9f009a/cc45a10b653546a4b41b1b5e42394bce/FLAG83e29b82e [2023-02-15 21:46:11,951 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30c9f009a/cc45a10b653546a4b41b1b5e42394bce [2023-02-15 21:46:11,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 21:46:11,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 21:46:11,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 21:46:11,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 21:46:11,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 21:46:11,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 09:46:11" (1/1) ... [2023-02-15 21:46:11,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6557a7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:46:11, skipping insertion in model container [2023-02-15 21:46:11,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 09:46:11" (1/1) ... [2023-02-15 21:46:11,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 21:46:12,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 21:46:12,098 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/relax-1.i[983,996] [2023-02-15 21:46:12,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 21:46:12,182 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 21:46:12,194 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/relax-1.i[983,996] [2023-02-15 21:46:12,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 21:46:12,249 INFO L208 MainTranslator]: Completed translation [2023-02-15 21:46:12,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:46:12 WrapperNode [2023-02-15 21:46:12,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 21:46:12,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 21:46:12,251 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 21:46:12,251 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 21:46:12,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:46:12" (1/1) ... [2023-02-15 21:46:12,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:46:12" (1/1) ... [2023-02-15 21:46:12,286 INFO L138 Inliner]: procedures = 120, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 127 [2023-02-15 21:46:12,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 21:46:12,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 21:46:12,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 21:46:12,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 21:46:12,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:46:12" (1/1) ... [2023-02-15 21:46:12,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:46:12" (1/1) ... [2023-02-15 21:46:12,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:46:12" (1/1) ... [2023-02-15 21:46:12,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:46:12" (1/1) ... [2023-02-15 21:46:12,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:46:12" (1/1) ... [2023-02-15 21:46:12,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:46:12" (1/1) ... [2023-02-15 21:46:12,305 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:46:12" (1/1) ... [2023-02-15 21:46:12,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:46:12" (1/1) ... [2023-02-15 21:46:12,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 21:46:12,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 21:46:12,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 21:46:12,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 21:46:12,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:46:12" (1/1) ... [2023-02-15 21:46:12,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 21:46:12,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 21:46:12,333 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) [2023-02-15 21:46:12,354 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 [2023-02-15 21:46:12,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-15 21:46:12,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-15 21:46:12,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-15 21:46:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-15 21:46:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-15 21:46:12,365 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-15 21:46:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-15 21:46:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 21:46:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-15 21:46:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 21:46:12,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 21:46:12,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 21:46:12,454 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 21:46:12,456 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 21:46:12,765 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 21:46:12,770 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 21:46:12,777 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-02-15 21:46:12,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 09:46:12 BoogieIcfgContainer [2023-02-15 21:46:12,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 21:46:12,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 21:46:12,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 21:46:12,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 21:46:12,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 09:46:11" (1/3) ... [2023-02-15 21:46:12,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578d02b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 09:46:12, skipping insertion in model container [2023-02-15 21:46:12,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:46:12" (2/3) ... [2023-02-15 21:46:12,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578d02b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 09:46:12, skipping insertion in model container [2023-02-15 21:46:12,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 09:46:12" (3/3) ... [2023-02-15 21:46:12,786 INFO L112 eAbstractionObserver]: Analyzing ICFG relax-1.i [2023-02-15 21:46:12,797 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 21:46:12,797 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-02-15 21:46:12,825 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 21:46:12,829 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@fbdcb41, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 21:46:12,830 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2023-02-15 21:46:12,832 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 55 states have (on average 1.9454545454545455) internal successors, (107), 88 states have internal predecessors, (107), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-15 21:46:12,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 21:46:12,837 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 21:46:12,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 21:46:12,837 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2023-02-15 21:46:12,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 21:46:12,841 INFO L85 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2023-02-15 21:46:12,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 21:46:12,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490165520] [2023-02-15 21:46:12,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 21:46:12,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 21:46:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:46:13,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 21:46:13,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 21:46:13,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490165520] [2023-02-15 21:46:13,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490165520] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 21:46:13,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 21:46:13,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 21:46:13,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379776101] [2023-02-15 21:46:13,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 21:46:13,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 21:46:13,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 21:46:13,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 21:46:13,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 21:46:13,155 INFO L87 Difference]: Start difference. First operand has 95 states, 55 states have (on average 1.9454545454545455) internal successors, (107), 88 states have internal predecessors, (107), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-02-15 21:46:13,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 21:46:13,239 INFO L93 Difference]: Finished difference Result 94 states and 111 transitions. [2023-02-15 21:46:13,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 21:46:13,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2023-02-15 21:46:13,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 21:46:13,249 INFO L225 Difference]: With dead ends: 94 [2023-02-15 21:46:13,249 INFO L226 Difference]: Without dead ends: 92 [2023-02-15 21:46:13,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 21:46:13,253 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 79 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 21:46:13,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 98 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 21:46:13,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-02-15 21:46:13,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2023-02-15 21:46:13,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 54 states have (on average 1.8333333333333333) internal successors, (99), 85 states have internal predecessors, (99), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-15 21:46:13,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 109 transitions. [2023-02-15 21:46:13,279 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 109 transitions. Word has length 5 [2023-02-15 21:46:13,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 21:46:13,279 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 109 transitions. [2023-02-15 21:46:13,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-02-15 21:46:13,280 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 109 transitions. [2023-02-15 21:46:13,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 21:46:13,280 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 21:46:13,280 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 21:46:13,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 21:46:13,281 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 29 more)] === [2023-02-15 21:46:13,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 21:46:13,282 INFO L85 PathProgramCache]: Analyzing trace with hash 28695943, now seen corresponding path program 1 times [2023-02-15 21:46:13,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 21:46:13,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819477909] [2023-02-15 21:46:13,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 21:46:13,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 21:46:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 21:46:13,316 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 21:46:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 21:46:13,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 21:46:13,357 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-15 21:46:13,358 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 32 remaining) [2023-02-15 21:46:13,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 32 remaining) [2023-02-15 21:46:13,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 32 remaining) [2023-02-15 21:46:13,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 32 remaining) [2023-02-15 21:46:13,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 32 remaining) [2023-02-15 21:46:13,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 32 remaining) [2023-02-15 21:46:13,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 32 remaining) [2023-02-15 21:46:13,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 32 remaining) [2023-02-15 21:46:13,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 32 remaining) [2023-02-15 21:46:13,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 32 remaining) [2023-02-15 21:46:13,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 32 remaining) [2023-02-15 21:46:13,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 32 remaining) [2023-02-15 21:46:13,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 32 remaining) [2023-02-15 21:46:13,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 32 remaining) [2023-02-15 21:46:13,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 32 remaining) [2023-02-15 21:46:13,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 32 remaining) [2023-02-15 21:46:13,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 32 remaining) [2023-02-15 21:46:13,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 32 remaining) [2023-02-15 21:46:13,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 32 remaining) [2023-02-15 21:46:13,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 32 remaining) [2023-02-15 21:46:13,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 32 remaining) [2023-02-15 21:46:13,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 32 remaining) [2023-02-15 21:46:13,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 32 remaining) [2023-02-15 21:46:13,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 32 remaining) [2023-02-15 21:46:13,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE (7 of 32 remaining) [2023-02-15 21:46:13,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE (6 of 32 remaining) [2023-02-15 21:46:13,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE (5 of 32 remaining) [2023-02-15 21:46:13,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE (4 of 32 remaining) [2023-02-15 21:46:13,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE (3 of 32 remaining) [2023-02-15 21:46:13,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE (2 of 32 remaining) [2023-02-15 21:46:13,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (1 of 32 remaining) [2023-02-15 21:46:13,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 32 remaining) [2023-02-15 21:46:13,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 21:46:13,366 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-02-15 21:46:13,370 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 21:46:13,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 09:46:13 BoogieIcfgContainer [2023-02-15 21:46:13,385 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 21:46:13,386 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 21:46:13,386 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 21:46:13,386 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 21:46:13,386 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 09:46:12" (3/4) ... [2023-02-15 21:46:13,387 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-02-15 21:46:13,407 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 21:46:13,408 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 21:46:13,408 INFO L158 Benchmark]: Toolchain (without parser) took 1454.38ms. Allocated memory is still 140.5MB. Free memory was 96.6MB in the beginning and 59.8MB in the end (delta: 36.7MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2023-02-15 21:46:13,408 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 107.0MB. Free memory was 82.8MB in the beginning and 82.7MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 21:46:13,409 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.89ms. Allocated memory is still 140.5MB. Free memory was 96.6MB in the beginning and 79.2MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-02-15 21:46:13,409 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.19ms. Allocated memory is still 140.5MB. Free memory was 79.2MB in the beginning and 77.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 21:46:13,409 INFO L158 Benchmark]: Boogie Preprocessor took 20.36ms. Allocated memory is still 140.5MB. Free memory was 77.1MB in the beginning and 75.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 21:46:13,410 INFO L158 Benchmark]: RCFGBuilder took 471.12ms. Allocated memory is still 140.5MB. Free memory was 75.1MB in the beginning and 108.1MB in the end (delta: -33.0MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2023-02-15 21:46:13,412 INFO L158 Benchmark]: TraceAbstraction took 605.09ms. Allocated memory is still 140.5MB. Free memory was 107.4MB in the beginning and 61.9MB in the end (delta: 45.5MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-02-15 21:46:13,412 INFO L158 Benchmark]: Witness Printer took 21.96ms. Allocated memory is still 140.5MB. Free memory was 61.9MB in the beginning and 59.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 21:46:13,413 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 107.0MB. Free memory was 82.8MB in the beginning and 82.7MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.89ms. Allocated memory is still 140.5MB. Free memory was 96.6MB in the beginning and 79.2MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.19ms. Allocated memory is still 140.5MB. Free memory was 79.2MB in the beginning and 77.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.36ms. Allocated memory is still 140.5MB. Free memory was 77.1MB in the beginning and 75.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 471.12ms. Allocated memory is still 140.5MB. Free memory was 75.1MB in the beginning and 108.1MB in the end (delta: -33.0MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. * TraceAbstraction took 605.09ms. Allocated memory is still 140.5MB. Free memory was 107.4MB in the beginning and 61.9MB in the end (delta: 45.5MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 21.96ms. Allocated memory is still 140.5MB. Free memory was 61.9MB in the beginning and 59.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L599] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L599] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L600] int *pat=malloc(sizeof(int)*pat_len); [L601] int *a=malloc(sizeof(int)*a_len); [L602] CALL is_relaxed_prefix(pat, pat_len, a, a_len) [L579] COND FALSE !(pat_length>a_length+1) [L581] int shift=0; [L582] int i=0; VAL [\old(a_length)=4294967294, \old(pat_length)=1073741824, a={-3:0}, a={-3:0}, a_length=4294967294, i=0, pat={-1:0}, pat={-1:0}, pat_length=1073741824, shift=0] [L582] COND TRUE i