./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 eb692b52 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-?-eb692b5 [2022-07-20 05:30:13,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 05:30:13,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 05:30:13,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 05:30:13,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 05:30:13,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 05:30:13,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 05:30:13,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 05:30:13,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 05:30:13,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 05:30:13,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 05:30:13,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 05:30:13,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 05:30:13,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 05:30:13,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 05:30:13,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 05:30:13,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 05:30:13,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 05:30:13,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 05:30:13,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 05:30:13,371 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 05:30:13,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 05:30:13,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 05:30:13,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 05:30:13,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 05:30:13,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 05:30:13,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 05:30:13,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 05:30:13,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 05:30:13,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 05:30:13,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 05:30:13,383 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 05:30:13,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 05:30:13,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 05:30:13,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 05:30:13,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 05:30:13,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 05:30:13,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 05:30:13,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 05:30:13,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 05:30:13,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 05:30:13,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 05:30:13,392 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-07-20 05:30:13,420 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 05:30:13,421 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 05:30:13,421 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 05:30:13,422 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 05:30:13,422 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 05:30:13,422 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 05:30:13,423 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 05:30:13,423 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 05:30:13,423 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 05:30:13,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 05:30:13,424 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-20 05:30:13,425 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-20 05:30:13,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 05:30:13,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-20 05:30:13,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 05:30:13,425 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-20 05:30:13,425 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-20 05:30:13,426 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-20 05:30:13,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 05:30:13,428 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 05:30:13,428 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-20 05:30:13,428 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 05:30:13,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 05:30:13,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 05:30:13,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 05:30:13,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 05:30:13,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 05:30:13,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 05:30:13,429 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 05:30:13,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 05:30:13,430 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fcae0c4d0ca1fc30eac1578cd8b45001717e96b8c9c5f68d5df56e6c4fcd72c [2022-07-20 05:30:13,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 05:30:13,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 05:30:13,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 05:30:13,672 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 05:30:13,672 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 05:30:13,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/relax-1.i [2022-07-20 05:30:13,734 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ca4b5b53/7a24ce7a69cf4b3e9f9fe5ba50e3230c/FLAGe79acd2f1 [2022-07-20 05:30:14,210 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 05:30:14,214 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/relax-1.i [2022-07-20 05:30:14,231 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ca4b5b53/7a24ce7a69cf4b3e9f9fe5ba50e3230c/FLAGe79acd2f1 [2022-07-20 05:30:14,756 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ca4b5b53/7a24ce7a69cf4b3e9f9fe5ba50e3230c [2022-07-20 05:30:14,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 05:30:14,759 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 05:30:14,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 05:30:14,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 05:30:14,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 05:30:14,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:30:14" (1/1) ... [2022-07-20 05:30:14,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42f8a765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:30:14, skipping insertion in model container [2022-07-20 05:30:14,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:30:14" (1/1) ... [2022-07-20 05:30:14,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 05:30:14,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 05:30:14,960 WARN L230 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] [2022-07-20 05:30:15,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 05:30:15,086 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 05:30:15,095 WARN L230 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] [2022-07-20 05:30:15,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 05:30:15,148 INFO L208 MainTranslator]: Completed translation [2022-07-20 05:30:15,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:30:15 WrapperNode [2022-07-20 05:30:15,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 05:30:15,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 05:30:15,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 05:30:15,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 05:30:15,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:30:15" (1/1) ... [2022-07-20 05:30:15,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:30:15" (1/1) ... [2022-07-20 05:30:15,203 INFO L137 Inliner]: procedures = 120, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 127 [2022-07-20 05:30:15,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 05:30:15,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 05:30:15,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 05:30:15,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 05:30:15,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:30:15" (1/1) ... [2022-07-20 05:30:15,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:30:15" (1/1) ... [2022-07-20 05:30:15,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:30:15" (1/1) ... [2022-07-20 05:30:15,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:30:15" (1/1) ... [2022-07-20 05:30:15,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:30:15" (1/1) ... [2022-07-20 05:30:15,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:30:15" (1/1) ... [2022-07-20 05:30:15,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:30:15" (1/1) ... [2022-07-20 05:30:15,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 05:30:15,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 05:30:15,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 05:30:15,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 05:30:15,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:30:15" (1/1) ... [2022-07-20 05:30:15,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 05:30:15,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 05:30:15,284 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) [2022-07-20 05:30:15,316 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 [2022-07-20 05:30:15,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 05:30:15,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-20 05:30:15,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-20 05:30:15,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 05:30:15,327 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 05:30:15,328 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 05:30:15,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 05:30:15,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 05:30:15,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 05:30:15,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 05:30:15,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 05:30:15,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 05:30:15,394 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 05:30:15,395 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 05:30:15,651 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 05:30:15,656 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 05:30:15,656 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-20 05:30:15,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:30:15 BoogieIcfgContainer [2022-07-20 05:30:15,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 05:30:15,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 05:30:15,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 05:30:15,661 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 05:30:15,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:30:14" (1/3) ... [2022-07-20 05:30:15,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10946c0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:30:15, skipping insertion in model container [2022-07-20 05:30:15,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:30:15" (2/3) ... [2022-07-20 05:30:15,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10946c0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:30:15, skipping insertion in model container [2022-07-20 05:30:15,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:30:15" (3/3) ... [2022-07-20 05:30:15,663 INFO L111 eAbstractionObserver]: Analyzing ICFG relax-1.i [2022-07-20 05:30:15,681 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 05:30:15,681 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-07-20 05:30:15,714 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 05:30:15,719 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=FINITE_AUTOMATA, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3f39e9fc, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1cd5d844 [2022-07-20 05:30:15,720 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2022-07-20 05:30:15,722 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) [2022-07-20 05:30:15,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-20 05:30:15,727 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:30:15,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-20 05:30:15,728 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)] === [2022-07-20 05:30:15,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:30:15,732 INFO L85 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2022-07-20 05:30:15,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 05:30:15,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994303244] [2022-07-20 05:30:15,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:30:15,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 05:30:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 05:30:15,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 05:30:15,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 05:30:15,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994303244] [2022-07-20 05:30:15,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994303244] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 05:30:15,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 05:30:15,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 05:30:15,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660089538] [2022-07-20 05:30:15,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 05:30:15,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 05:30:15,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 05:30:15,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 05:30:15,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 05:30:15,894 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) [2022-07-20 05:30:15,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 05:30:15,957 INFO L93 Difference]: Finished difference Result 94 states and 111 transitions. [2022-07-20 05:30:15,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 05:30:15,959 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 [2022-07-20 05:30:15,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 05:30:15,969 INFO L225 Difference]: With dead ends: 94 [2022-07-20 05:30:15,969 INFO L226 Difference]: Without dead ends: 92 [2022-07-20 05:30:15,971 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 [2022-07-20 05:30:15,976 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, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 05:30:15,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 98 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 05:30:15,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-07-20 05:30:16,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-07-20 05:30:16,007 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) [2022-07-20 05:30:16,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 109 transitions. [2022-07-20 05:30:16,012 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 109 transitions. Word has length 5 [2022-07-20 05:30:16,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 05:30:16,012 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 109 transitions. [2022-07-20 05:30:16,014 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) [2022-07-20 05:30:16,014 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 109 transitions. [2022-07-20 05:30:16,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-20 05:30:16,015 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:30:16,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-20 05:30:16,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 05:30:16,016 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)] === [2022-07-20 05:30:16,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:30:16,018 INFO L85 PathProgramCache]: Analyzing trace with hash 28695943, now seen corresponding path program 1 times [2022-07-20 05:30:16,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 05:30:16,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138286743] [2022-07-20 05:30:16,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:30:16,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 05:30:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-20 05:30:16,053 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-20 05:30:16,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-20 05:30:16,089 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-20 05:30:16,089 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-20 05:30:16,091 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 32 remaining) [2022-07-20 05:30:16,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 32 remaining) [2022-07-20 05:30:16,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 32 remaining) [2022-07-20 05:30:16,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 32 remaining) [2022-07-20 05:30:16,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 32 remaining) [2022-07-20 05:30:16,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 32 remaining) [2022-07-20 05:30:16,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 32 remaining) [2022-07-20 05:30:16,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 32 remaining) [2022-07-20 05:30:16,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 32 remaining) [2022-07-20 05:30:16,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 32 remaining) [2022-07-20 05:30:16,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 32 remaining) [2022-07-20 05:30:16,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 32 remaining) [2022-07-20 05:30:16,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 32 remaining) [2022-07-20 05:30:16,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 32 remaining) [2022-07-20 05:30:16,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 32 remaining) [2022-07-20 05:30:16,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 32 remaining) [2022-07-20 05:30:16,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 32 remaining) [2022-07-20 05:30:16,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 32 remaining) [2022-07-20 05:30:16,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 32 remaining) [2022-07-20 05:30:16,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 32 remaining) [2022-07-20 05:30:16,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 32 remaining) [2022-07-20 05:30:16,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 32 remaining) [2022-07-20 05:30:16,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 32 remaining) [2022-07-20 05:30:16,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 32 remaining) [2022-07-20 05:30:16,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE (7 of 32 remaining) [2022-07-20 05:30:16,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE (6 of 32 remaining) [2022-07-20 05:30:16,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE (5 of 32 remaining) [2022-07-20 05:30:16,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE (4 of 32 remaining) [2022-07-20 05:30:16,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE (3 of 32 remaining) [2022-07-20 05:30:16,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE (2 of 32 remaining) [2022-07-20 05:30:16,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK (1 of 32 remaining) [2022-07-20 05:30:16,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 32 remaining) [2022-07-20 05:30:16,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 05:30:16,100 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-20 05:30:16,103 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-20 05:30:16,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:30:16 BoogieIcfgContainer [2022-07-20 05:30:16,122 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-20 05:30:16,122 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-20 05:30:16,122 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-20 05:30:16,123 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-20 05:30:16,123 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:30:15" (3/4) ... [2022-07-20 05:30:16,126 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-20 05:30:16,147 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-20 05:30:16,147 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-20 05:30:16,148 INFO L158 Benchmark]: Toolchain (without parser) took 1388.70ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 85.9MB in the beginning and 88.0MB in the end (delta: -2.0MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2022-07-20 05:30:16,148 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 81.8MB. Free memory is still 38.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 05:30:16,148 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.58ms. Allocated memory is still 121.6MB. Free memory was 85.7MB in the beginning and 87.3MB in the end (delta: -1.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-20 05:30:16,148 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.41ms. Allocated memory is still 121.6MB. Free memory was 87.3MB in the beginning and 85.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-20 05:30:16,149 INFO L158 Benchmark]: Boogie Preprocessor took 41.55ms. Allocated memory is still 121.6MB. Free memory was 85.1MB in the beginning and 83.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-20 05:30:16,149 INFO L158 Benchmark]: RCFGBuilder took 411.35ms. Allocated memory is still 121.6MB. Free memory was 83.5MB in the beginning and 96.1MB in the end (delta: -12.6MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2022-07-20 05:30:16,149 INFO L158 Benchmark]: TraceAbstraction took 463.03ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 95.6MB in the beginning and 89.5MB in the end (delta: 6.1MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2022-07-20 05:30:16,150 INFO L158 Benchmark]: Witness Printer took 24.86ms. Allocated memory is still 146.8MB. Free memory was 89.5MB in the beginning and 88.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-20 05:30:16,151 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 81.8MB. Free memory is still 38.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 389.58ms. Allocated memory is still 121.6MB. Free memory was 85.7MB in the beginning and 87.3MB in the end (delta: -1.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.41ms. Allocated memory is still 121.6MB. Free memory was 87.3MB in the beginning and 85.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.55ms. Allocated memory is still 121.6MB. Free memory was 85.1MB in the beginning and 83.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 411.35ms. Allocated memory is still 121.6MB. Free memory was 83.5MB in the beginning and 96.1MB in the end (delta: -12.6MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * TraceAbstraction took 463.03ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 95.6MB in the beginning and 89.5MB in the end (delta: 6.1MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * Witness Printer took 24.86ms. Allocated memory is still 146.8MB. Free memory was 89.5MB in the beginning and 88.0MB in the end (delta: 1.5MB). 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)=2, \old(pat_length)=1, a={-1:0}, a={-1:0}, a_length=2, i=0, pat={-2:0}, pat={-2:0}, pat_length=1, shift=0] [L582] COND TRUE i