./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 574ddb4e 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/list-ext-properties/test-0158_1-2.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 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-17 08:27:50,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 08:27:50,032 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 08:27:50,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 08:27:50,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 08:27:50,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 08:27:50,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 08:27:50,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 08:27:50,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 08:27:50,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 08:27:50,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 08:27:50,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 08:27:50,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 08:27:50,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 08:27:50,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 08:27:50,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 08:27:50,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 08:27:50,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 08:27:50,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 08:27:50,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 08:27:50,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 08:27:50,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 08:27:50,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 08:27:50,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 08:27:50,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 08:27:50,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 08:27:50,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 08:27:50,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 08:27:50,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 08:27:50,114 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 08:27:50,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 08:27:50,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 08:27:50,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 08:27:50,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 08:27:50,117 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 08:27:50,117 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 08:27:50,118 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 08:27:50,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 08:27:50,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 08:27:50,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 08:27:50,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 08:27:50,121 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-02-17 08:27:50,139 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 08:27:50,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 08:27:50,139 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 08:27:50,140 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 08:27:50,141 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 08:27:50,141 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 08:27:50,141 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 08:27:50,141 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 08:27:50,142 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 08:27:50,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 08:27:50,142 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 08:27:50,143 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-17 08:27:50,143 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 08:27:50,143 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 08:27:50,143 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 08:27:50,143 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-17 08:27:50,144 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-17 08:27:50,144 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-17 08:27:50,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 08:27:50,144 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-17 08:27:50,144 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 08:27:50,144 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 08:27:50,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 08:27:50,145 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 08:27:50,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 08:27:50,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 08:27:50,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 08:27:50,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 08:27:50,146 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 08:27:50,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 08:27:50,146 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 08:27:50,146 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 08:27:50,147 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 08:27:50,147 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 08:27:50,147 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 [2023-02-17 08:27:50,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 08:27:50,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 08:27:50,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 08:27:50,402 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 08:27:50,404 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 08:27:50,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2023-02-17 08:27:51,643 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 08:27:51,905 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 08:27:51,906 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2023-02-17 08:27:51,921 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/815c412d3/a34d3ba6ebd046ea90cabdf411d3723f/FLAG5ed11d523 [2023-02-17 08:27:51,938 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/815c412d3/a34d3ba6ebd046ea90cabdf411d3723f [2023-02-17 08:27:51,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 08:27:51,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 08:27:51,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 08:27:51,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 08:27:51,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 08:27:51,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 08:27:51" (1/1) ... [2023-02-17 08:27:51,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b22fade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:51, skipping insertion in model container [2023-02-17 08:27:51,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 08:27:51" (1/1) ... [2023-02-17 08:27:51,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 08:27:51,996 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 08:27:52,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 08:27:52,234 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 08:27:52,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 08:27:52,296 INFO L208 MainTranslator]: Completed translation [2023-02-17 08:27:52,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:52 WrapperNode [2023-02-17 08:27:52,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 08:27:52,299 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 08:27:52,299 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 08:27:52,299 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 08:27:52,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:52" (1/1) ... [2023-02-17 08:27:52,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:52" (1/1) ... [2023-02-17 08:27:52,336 INFO L138 Inliner]: procedures = 124, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2023-02-17 08:27:52,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 08:27:52,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 08:27:52,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 08:27:52,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 08:27:52,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:52" (1/1) ... [2023-02-17 08:27:52,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:52" (1/1) ... [2023-02-17 08:27:52,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:52" (1/1) ... [2023-02-17 08:27:52,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:52" (1/1) ... [2023-02-17 08:27:52,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:52" (1/1) ... [2023-02-17 08:27:52,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:52" (1/1) ... [2023-02-17 08:27:52,381 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:52" (1/1) ... [2023-02-17 08:27:52,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:52" (1/1) ... [2023-02-17 08:27:52,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 08:27:52,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 08:27:52,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 08:27:52,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 08:27:52,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:52" (1/1) ... [2023-02-17 08:27:52,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 08:27:52,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 08:27:52,427 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) [2023-02-17 08:27:52,441 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 [2023-02-17 08:27:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-17 08:27:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-17 08:27:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-17 08:27:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 08:27:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-17 08:27:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-17 08:27:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-17 08:27:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-17 08:27:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 08:27:52,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 08:27:52,586 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 08:27:52,588 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 08:27:52,766 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 08:27:52,772 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 08:27:52,772 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-17 08:27:52,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 08:27:52 BoogieIcfgContainer [2023-02-17 08:27:52,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 08:27:52,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 08:27:52,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 08:27:52,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 08:27:52,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 08:27:51" (1/3) ... [2023-02-17 08:27:52,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e298e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 08:27:52, skipping insertion in model container [2023-02-17 08:27:52,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:52" (2/3) ... [2023-02-17 08:27:52,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e298e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 08:27:52, skipping insertion in model container [2023-02-17 08:27:52,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 08:27:52" (3/3) ... [2023-02-17 08:27:52,791 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2023-02-17 08:27:52,807 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 08:27:52,807 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-02-17 08:27:52,885 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 08:27:52,894 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;@3ef33a99, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 08:27:52,894 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-02-17 08:27:52,900 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 13 states have (on average 2.0) internal successors, (26), 24 states have internal predecessors, (26), 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) [2023-02-17 08:27:52,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-02-17 08:27:52,905 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:27:52,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-02-17 08:27:52,906 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-02-17 08:27:52,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:27:52,936 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2023-02-17 08:27:52,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:27:52,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172292859] [2023-02-17 08:27:52,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:27:52,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:27:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:27:53,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:27:53,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:27:53,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172292859] [2023-02-17 08:27:53,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172292859] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:27:53,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:27:53,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 08:27:53,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523651834] [2023-02-17 08:27:53,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:27:53,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:27:53,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:27:53,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:27:53,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:27:53,257 INFO L87 Difference]: Start difference. First operand has 25 states, 13 states have (on average 2.0) internal successors, (26), 24 states have internal predecessors, (26), 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-02-17 08:27:53,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:27:53,315 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2023-02-17 08:27:53,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:27:53,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2023-02-17 08:27:53,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:27:53,327 INFO L225 Difference]: With dead ends: 20 [2023-02-17 08:27:53,328 INFO L226 Difference]: Without dead ends: 18 [2023-02-17 08:27:53,329 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 [2023-02-17 08:27:53,335 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 15 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:27:53,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 11 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:27:53,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-02-17 08:27:53,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-02-17 08:27:53,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 17 states have internal predecessors, (19), 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) [2023-02-17 08:27:53,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2023-02-17 08:27:53,368 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 3 [2023-02-17 08:27:53,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:27:53,369 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2023-02-17 08:27:53,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-02-17 08:27:53,369 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2023-02-17 08:27:53,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-02-17 08:27:53,370 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:27:53,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-02-17 08:27:53,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 08:27:53,378 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-02-17 08:27:53,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:27:53,379 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-02-17 08:27:53,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:27:53,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460766913] [2023-02-17 08:27:53,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:27:53,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:27:53,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:27:53,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:27:53,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:27:53,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460766913] [2023-02-17 08:27:53,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460766913] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:27:53,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:27:53,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 08:27:53,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722304253] [2023-02-17 08:27:53,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:27:53,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:27:53,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:27:53,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:27:53,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:27:53,518 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-02-17 08:27:53,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:27:53,538 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2023-02-17 08:27:53,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:27:53,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2023-02-17 08:27:53,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:27:53,540 INFO L225 Difference]: With dead ends: 13 [2023-02-17 08:27:53,540 INFO L226 Difference]: Without dead ends: 13 [2023-02-17 08:27:53,543 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 [2023-02-17 08:27:53,544 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 10 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:27:53,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 9 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:27:53,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-02-17 08:27:53,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-02-17 08:27:53,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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) [2023-02-17 08:27:53,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2023-02-17 08:27:53,551 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 3 [2023-02-17 08:27:53,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:27:53,552 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2023-02-17 08:27:53,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-02-17 08:27:53,554 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-02-17 08:27:53,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-17 08:27:53,554 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:27:53,555 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:27:53,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-17 08:27:53,555 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-02-17 08:27:53,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:27:53,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1114117971, now seen corresponding path program 1 times [2023-02-17 08:27:53,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:27:53,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626703527] [2023-02-17 08:27:53,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:27:53,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:27:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:27:53,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:27:53,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 08:27:53,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626703527] [2023-02-17 08:27:53,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626703527] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:27:53,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:27:53,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-17 08:27:53,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934933662] [2023-02-17 08:27:53,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:27:53,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 08:27:53,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 08:27:53,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 08:27:53,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-17 08:27:53,775 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2023-02-17 08:27:53,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:27:53,822 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2023-02-17 08:27:53,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 08:27:53,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2023-02-17 08:27:53,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:27:53,824 INFO L225 Difference]: With dead ends: 17 [2023-02-17 08:27:53,824 INFO L226 Difference]: Without dead ends: 17 [2023-02-17 08:27:53,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-17 08:27:53,826 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 08:27:53,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 26 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 08:27:53,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-02-17 08:27:53,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2023-02-17 08:27:53,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 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) [2023-02-17 08:27:53,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2023-02-17 08:27:53,830 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2023-02-17 08:27:53,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:27:53,832 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2023-02-17 08:27:53,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2023-02-17 08:27:53,832 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2023-02-17 08:27:53,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-17 08:27:53,833 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:27:53,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:27:53,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-17 08:27:53,835 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-02-17 08:27:53,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:27:53,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1261881331, now seen corresponding path program 1 times [2023-02-17 08:27:53,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 08:27:53,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081777636] [2023-02-17 08:27:53,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:27:53,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 08:27:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 08:27:53,865 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 08:27:53,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 08:27:53,911 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 08:27:53,912 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-17 08:27:53,914 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (10 of 11 remaining) [2023-02-17 08:27:53,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2023-02-17 08:27:53,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2023-02-17 08:27:53,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2023-02-17 08:27:53,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2023-02-17 08:27:53,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2023-02-17 08:27:53,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 11 remaining) [2023-02-17 08:27:53,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 11 remaining) [2023-02-17 08:27:53,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 11 remaining) [2023-02-17 08:27:53,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 11 remaining) [2023-02-17 08:27:53,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 11 remaining) [2023-02-17 08:27:53,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-17 08:27:53,925 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-02-17 08:27:53,928 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-17 08:27:53,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.02 08:27:53 BoogieIcfgContainer [2023-02-17 08:27:53,951 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-17 08:27:53,952 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-17 08:27:53,952 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-17 08:27:53,952 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-17 08:27:53,952 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 08:27:52" (3/4) ... [2023-02-17 08:27:53,955 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-17 08:27:53,955 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-17 08:27:53,956 INFO L158 Benchmark]: Toolchain (without parser) took 2013.99ms. Allocated memory was 142.6MB in the beginning and 192.9MB in the end (delta: 50.3MB). Free memory was 93.2MB in the beginning and 110.2MB in the end (delta: -17.0MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. [2023-02-17 08:27:53,956 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 43.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 08:27:53,957 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.52ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 76.4MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-02-17 08:27:53,957 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.77ms. Allocated memory is still 142.6MB. Free memory was 76.4MB in the beginning and 74.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 08:27:53,957 INFO L158 Benchmark]: Boogie Preprocessor took 55.91ms. Allocated memory is still 142.6MB. Free memory was 74.8MB in the beginning and 73.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 08:27:53,957 INFO L158 Benchmark]: RCFGBuilder took 382.43ms. Allocated memory is still 142.6MB. Free memory was 73.3MB in the beginning and 62.2MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-17 08:27:53,958 INFO L158 Benchmark]: TraceAbstraction took 1172.69ms. Allocated memory was 142.6MB in the beginning and 192.9MB in the end (delta: 50.3MB). Free memory was 61.3MB in the beginning and 111.2MB in the end (delta: -50.0MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2023-02-17 08:27:53,958 INFO L158 Benchmark]: Witness Printer took 3.96ms. Allocated memory is still 192.9MB. Free memory was 111.2MB in the beginning and 110.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 08:27:53,960 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 43.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.52ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 76.4MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.77ms. Allocated memory is still 142.6MB. Free memory was 76.4MB in the beginning and 74.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.91ms. Allocated memory is still 142.6MB. Free memory was 74.8MB in the beginning and 73.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 382.43ms. Allocated memory is still 142.6MB. Free memory was 73.3MB in the beginning and 62.2MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1172.69ms. Allocated memory was 142.6MB in the beginning and 192.9MB in the end (delta: 50.3MB). Free memory was 61.3MB in the beginning and 111.2MB in the end (delta: -50.0MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * Witness Printer took 3.96ms. Allocated memory is still 192.9MB. Free memory was 111.2MB in the beginning and 110.2MB in the end (delta: 1.0MB). There was no memory consumed. 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 - UnprovableResult [Line: 524]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 524. Possible FailurePath: [L526-L533] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L534] data.p0 = malloc(37U) VAL [data={3:0}, malloc(37U)={-1:0}] [L535] COND FALSE !(__VERIFIER_nondet_int()) [L538] data.str.p2 = 30 VAL [data={3:0}] [L540] EXPR data.str.p2 VAL [data={3:0}, data.str.p2=30] [L540] COND FALSE !(25 > data.str.p2) [L543] return 0; [L543] return 0; VAL [\result=0] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 29 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-02-17 08:27:53,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/list-ext-properties/test-0158_1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-17 08:27:56,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 08:27:56,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 08:27:56,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 08:27:56,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 08:27:56,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 08:27:56,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 08:27:56,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 08:27:56,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 08:27:56,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 08:27:56,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 08:27:56,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 08:27:56,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 08:27:56,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 08:27:56,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 08:27:56,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 08:27:56,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 08:27:56,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 08:27:56,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 08:27:56,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 08:27:56,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 08:27:56,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 08:27:56,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 08:27:56,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 08:27:56,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 08:27:56,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 08:27:56,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 08:27:56,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 08:27:56,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 08:27:56,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 08:27:56,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 08:27:56,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 08:27:56,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 08:27:56,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 08:27:56,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 08:27:56,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 08:27:56,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 08:27:56,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 08:27:56,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 08:27:56,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 08:27:56,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 08:27:56,204 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-02-17 08:27:56,231 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 08:27:56,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 08:27:56,232 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 08:27:56,232 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 08:27:56,233 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 08:27:56,233 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 08:27:56,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 08:27:56,234 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 08:27:56,234 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 08:27:56,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 08:27:56,235 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 08:27:56,235 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-17 08:27:56,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 08:27:56,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 08:27:56,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 08:27:56,236 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-17 08:27:56,236 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-17 08:27:56,237 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-17 08:27:56,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 08:27:56,237 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-17 08:27:56,237 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-17 08:27:56,237 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-17 08:27:56,238 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 08:27:56,238 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 08:27:56,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 08:27:56,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 08:27:56,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 08:27:56,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 08:27:56,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 08:27:56,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 08:27:56,239 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-17 08:27:56,239 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-17 08:27:56,240 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 08:27:56,240 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 08:27:56,240 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 08:27:56,240 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-17 08:27:56,241 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 08:27:56,241 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7140a276a0ca1ba8339f047ca5220394bc3f48542635b8ad8e347c34fb7ba260 [2023-02-17 08:27:56,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 08:27:56,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 08:27:56,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 08:27:56,611 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 08:27:56,612 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 08:27:56,615 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2023-02-17 08:27:57,904 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 08:27:58,147 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 08:27:58,148 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/test-0158_1-2.i [2023-02-17 08:27:58,157 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2280aacfd/8275b7af8216496eb2b8cc1794821a58/FLAGdc4d86cef [2023-02-17 08:27:58,472 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2280aacfd/8275b7af8216496eb2b8cc1794821a58 [2023-02-17 08:27:58,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 08:27:58,476 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 08:27:58,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 08:27:58,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 08:27:58,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 08:27:58,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 08:27:58" (1/1) ... [2023-02-17 08:27:58,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d11552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:58, skipping insertion in model container [2023-02-17 08:27:58,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 08:27:58" (1/1) ... [2023-02-17 08:27:58,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 08:27:58,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 08:27:58,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 08:27:58,819 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 08:27:58,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 08:27:58,903 INFO L208 MainTranslator]: Completed translation [2023-02-17 08:27:58,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:58 WrapperNode [2023-02-17 08:27:58,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 08:27:58,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 08:27:58,906 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 08:27:58,906 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 08:27:58,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:58" (1/1) ... [2023-02-17 08:27:58,944 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:58" (1/1) ... [2023-02-17 08:27:58,963 INFO L138 Inliner]: procedures = 127, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2023-02-17 08:27:58,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 08:27:58,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 08:27:58,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 08:27:58,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 08:27:58,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:58" (1/1) ... [2023-02-17 08:27:58,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:58" (1/1) ... [2023-02-17 08:27:58,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:58" (1/1) ... [2023-02-17 08:27:58,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:58" (1/1) ... [2023-02-17 08:27:59,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:58" (1/1) ... [2023-02-17 08:27:59,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:58" (1/1) ... [2023-02-17 08:27:59,010 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:58" (1/1) ... [2023-02-17 08:27:59,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:58" (1/1) ... [2023-02-17 08:27:59,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 08:27:59,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 08:27:59,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 08:27:59,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 08:27:59,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:58" (1/1) ... [2023-02-17 08:27:59,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 08:27:59,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 08:27:59,055 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) [2023-02-17 08:27:59,065 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 [2023-02-17 08:27:59,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-02-17 08:27:59,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-17 08:27:59,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 08:27:59,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-17 08:27:59,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-17 08:27:59,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-02-17 08:27:59,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-17 08:27:59,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-02-17 08:27:59,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-02-17 08:27:59,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 08:27:59,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 08:27:59,240 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 08:27:59,242 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 08:27:59,379 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 08:27:59,384 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 08:27:59,385 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-17 08:27:59,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 08:27:59 BoogieIcfgContainer [2023-02-17 08:27:59,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 08:27:59,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 08:27:59,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 08:27:59,391 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 08:27:59,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 08:27:58" (1/3) ... [2023-02-17 08:27:59,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217002b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 08:27:59, skipping insertion in model container [2023-02-17 08:27:59,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 08:27:58" (2/3) ... [2023-02-17 08:27:59,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@217002b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 08:27:59, skipping insertion in model container [2023-02-17 08:27:59,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 08:27:59" (3/3) ... [2023-02-17 08:27:59,393 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158_1-2.i [2023-02-17 08:27:59,407 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 08:27:59,407 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-02-17 08:27:59,454 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 08:27:59,462 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;@382a59f2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 08:27:59,462 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-02-17 08:27:59,466 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 13 states have (on average 2.0) internal successors, (26), 24 states have internal predecessors, (26), 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) [2023-02-17 08:27:59,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-02-17 08:27:59,471 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:27:59,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-02-17 08:27:59,472 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-02-17 08:27:59,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:27:59,486 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2023-02-17 08:27:59,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-17 08:27:59,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461606252] [2023-02-17 08:27:59,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:27:59,499 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:27:59,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-17 08:27:59,508 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-17 08:27:59,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-02-17 08:27:59,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:27:59,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 08:27:59,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 08:27:59,679 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 08:27:59,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2023-02-17 08:27:59,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:27:59,702 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 08:27:59,703 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-17 08:27:59,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461606252] [2023-02-17 08:27:59,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1461606252] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:27:59,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:27:59,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 08:27:59,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22099864] [2023-02-17 08:27:59,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:27:59,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:27:59,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-17 08:27:59,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:27:59,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:27:59,734 INFO L87 Difference]: Start difference. First operand has 25 states, 13 states have (on average 2.0) internal successors, (26), 24 states have internal predecessors, (26), 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-02-17 08:27:59,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:27:59,807 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2023-02-17 08:27:59,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:27:59,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2023-02-17 08:27:59,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:27:59,815 INFO L225 Difference]: With dead ends: 20 [2023-02-17 08:27:59,815 INFO L226 Difference]: Without dead ends: 18 [2023-02-17 08:27:59,816 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 [2023-02-17 08:27:59,819 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 15 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 08:27:59,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 11 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 08:27:59,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-02-17 08:27:59,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-02-17 08:27:59,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 17 states have internal predecessors, (19), 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) [2023-02-17 08:27:59,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2023-02-17 08:27:59,844 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 3 [2023-02-17 08:27:59,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:27:59,845 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2023-02-17 08:27:59,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-02-17 08:27:59,845 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2023-02-17 08:27:59,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-02-17 08:27:59,846 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:27:59,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-02-17 08:27:59,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-02-17 08:28:00,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:28:00,059 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-02-17 08:28:00,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:28:00,062 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-02-17 08:28:00,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-17 08:28:00,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1392970387] [2023-02-17 08:28:00,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:28:00,064 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:28:00,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-17 08:28:00,066 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-17 08:28:00,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-02-17 08:28:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:28:00,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-17 08:28:00,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 08:28:00,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 08:28:00,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2023-02-17 08:28:00,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-17 08:28:00,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:28:00,162 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 08:28:00,163 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-17 08:28:00,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1392970387] [2023-02-17 08:28:00,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1392970387] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:28:00,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:28:00,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 08:28:00,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342340947] [2023-02-17 08:28:00,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:28:00,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 08:28:00,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-17 08:28:00,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 08:28:00,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 08:28:00,171 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-02-17 08:28:00,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:28:00,238 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2023-02-17 08:28:00,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 08:28:00,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2023-02-17 08:28:00,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:28:00,243 INFO L225 Difference]: With dead ends: 13 [2023-02-17 08:28:00,243 INFO L226 Difference]: Without dead ends: 13 [2023-02-17 08:28:00,243 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 [2023-02-17 08:28:00,244 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 10 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 08:28:00,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 9 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 08:28:00,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-02-17 08:28:00,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-02-17 08:28:00,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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) [2023-02-17 08:28:00,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2023-02-17 08:28:00,252 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 3 [2023-02-17 08:28:00,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:28:00,252 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2023-02-17 08:28:00,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-02-17 08:28:00,253 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2023-02-17 08:28:00,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-17 08:28:00,253 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:28:00,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:28:00,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-02-17 08:28:00,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:28:00,463 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-02-17 08:28:00,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:28:00,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1114117971, now seen corresponding path program 1 times [2023-02-17 08:28:00,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-17 08:28:00,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2126736545] [2023-02-17 08:28:00,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:28:00,475 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:28:00,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-17 08:28:00,477 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-17 08:28:00,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-02-17 08:28:00,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 08:28:00,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-17 08:28:00,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 08:28:00,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-17 08:28:00,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-02-17 08:28:00,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 08:28:00,599 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 08:28:00,599 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-17 08:28:00,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2126736545] [2023-02-17 08:28:00,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2126736545] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 08:28:00,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 08:28:00,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-17 08:28:00,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433699993] [2023-02-17 08:28:00,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 08:28:00,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 08:28:00,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-17 08:28:00,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 08:28:00,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-17 08:28:00,602 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2023-02-17 08:28:00,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 08:28:00,683 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2023-02-17 08:28:00,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 08:28:00,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2023-02-17 08:28:00,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 08:28:00,684 INFO L225 Difference]: With dead ends: 17 [2023-02-17 08:28:00,684 INFO L226 Difference]: Without dead ends: 17 [2023-02-17 08:28:00,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-17 08:28:00,686 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 08:28:00,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 26 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 08:28:00,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-02-17 08:28:00,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2023-02-17 08:28:00,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 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) [2023-02-17 08:28:00,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2023-02-17 08:28:00,689 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2023-02-17 08:28:00,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 08:28:00,690 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2023-02-17 08:28:00,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2023-02-17 08:28:00,690 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2023-02-17 08:28:00,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-17 08:28:00,690 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 08:28:00,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 08:28:00,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-02-17 08:28:00,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:28:00,893 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-02-17 08:28:00,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 08:28:00,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1261881331, now seen corresponding path program 1 times [2023-02-17 08:28:00,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-17 08:28:00,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [740436116] [2023-02-17 08:28:00,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 08:28:00,895 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:28:00,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-17 08:28:00,897 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-17 08:28:00,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-02-17 08:28:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 08:28:00,968 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 08:28:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 08:28:01,024 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-02-17 08:28:01,025 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-17 08:28:01,025 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (10 of 11 remaining) [2023-02-17 08:28:01,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2023-02-17 08:28:01,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2023-02-17 08:28:01,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2023-02-17 08:28:01,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2023-02-17 08:28:01,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2023-02-17 08:28:01,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 11 remaining) [2023-02-17 08:28:01,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 11 remaining) [2023-02-17 08:28:01,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 11 remaining) [2023-02-17 08:28:01,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 11 remaining) [2023-02-17 08:28:01,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 11 remaining) [2023-02-17 08:28:01,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-02-17 08:28:01,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-17 08:28:01,236 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-02-17 08:28:01,239 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-17 08:28:01,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.02 08:28:01 BoogieIcfgContainer [2023-02-17 08:28:01,258 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-17 08:28:01,258 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-17 08:28:01,258 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-17 08:28:01,259 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-17 08:28:01,259 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 08:27:59" (3/4) ... [2023-02-17 08:28:01,263 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-17 08:28:01,263 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-17 08:28:01,264 INFO L158 Benchmark]: Toolchain (without parser) took 2787.74ms. Allocated memory is still 92.3MB. Free memory was 67.9MB in the beginning and 48.6MB in the end (delta: 19.3MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2023-02-17 08:28:01,264 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 65.0MB. Free memory is still 42.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 08:28:01,264 INFO L158 Benchmark]: CACSL2BoogieTranslator took 427.60ms. Allocated memory is still 92.3MB. Free memory was 67.9MB in the beginning and 50.8MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-02-17 08:28:01,265 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.17ms. Allocated memory is still 92.3MB. Free memory was 50.8MB in the beginning and 49.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 08:28:01,265 INFO L158 Benchmark]: Boogie Preprocessor took 54.16ms. Allocated memory is still 92.3MB. Free memory was 48.7MB in the beginning and 47.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 08:28:01,265 INFO L158 Benchmark]: RCFGBuilder took 366.67ms. Allocated memory is still 92.3MB. Free memory was 47.2MB in the beginning and 64.0MB in the end (delta: -16.8MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2023-02-17 08:28:01,266 INFO L158 Benchmark]: TraceAbstraction took 1869.76ms. Allocated memory is still 92.3MB. Free memory was 63.0MB in the beginning and 49.1MB in the end (delta: 14.0MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2023-02-17 08:28:01,266 INFO L158 Benchmark]: Witness Printer took 4.82ms. Allocated memory is still 92.3MB. Free memory was 49.1MB in the beginning and 48.6MB in the end (delta: 461.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 08:28:01,272 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 65.0MB. Free memory is still 42.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 427.60ms. Allocated memory is still 92.3MB. Free memory was 67.9MB in the beginning and 50.8MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.17ms. Allocated memory is still 92.3MB. Free memory was 50.8MB in the beginning and 49.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.16ms. Allocated memory is still 92.3MB. Free memory was 48.7MB in the beginning and 47.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 366.67ms. Allocated memory is still 92.3MB. Free memory was 47.2MB in the beginning and 64.0MB in the end (delta: -16.8MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1869.76ms. Allocated memory is still 92.3MB. Free memory was 63.0MB in the beginning and 49.1MB in the end (delta: 14.0MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * Witness Printer took 4.82ms. Allocated memory is still 92.3MB. Free memory was 49.1MB in the beginning and 48.6MB in the end (delta: 461.5kB). There was no memory consumed. 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 - UnprovableResult [Line: 524]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 524. Possible FailurePath: [L526-L533] union { void *p0; struct { char c[2]; int p1; int p2; } str; } data; [L534] data.p0 = malloc(37U) VAL [data={7:0}, malloc(37U)={3:0}] [L535] COND FALSE !(__VERIFIER_nondet_int()) [L538] data.str.p2 = 30 VAL [data={7:0}] [L540] EXPR data.str.p2 VAL [data={7:0}, data.str.p2=30] [L540] COND FALSE !(25 > data.str.p2) [L543] return 0; [L543] return 0; VAL [\result=0] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 29 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 13 ConstructedInterpolants, 1 QuantifiedInterpolants, 66 SizeOfPredicates, 5 NumberOfNonLiveVariables, 127 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-02-17 08:28:01,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample